SherlogCRT-OperatingInstructions

8/12/2019 SherlogCRT-OperatingInstructions

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SHERLOG CRTAdvanced Energy Network Monitor

Operating Instructions

Version 1.0

KoCoS Messtechnik AGSuedring 42

D-34497 KorbachTel. +49 (0) 56 31/95 96-0Fax +49 (0) 56 31/95 96-16

E-mail [email protected] www.kocos.com


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SHERLOG CRT 2


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SHERLOG CRT 3

CONTENTS

1 INTRODUCTION...................................................................................................... 6

1.1 Safety..................................................................................................................... 7

1.2 General................................................................................................................... 7

1.3 Safety tips and warnings............................................................................................ 7

2 SHORT DESCRIPTION.............................................................................................. 8

2.1 Hardware ................................................................................................................ 8

2.2 Software ................................................................................................................. 92.2.1 Configuration .................................................................................................................92.2.2 Fault Recorder Analysis ...................................................................................................92.2.3 Extended Fault Analysis.................................................................................................10

2.3 Signal processing power close to the analog inputs...................................................... 10

2.4 Display, buttons and LEDs........................................................................................ 10

2.5 Communication interfaces........................................................................................ 102.5.1 Front communication ports ............................................................................................102.5.2 Rear communication ports .............................................................................................112.5.3 Additional rear ports .....................................................................................................11

2.6 Fault Recorder Funktion........................................................................................... 12

2.7 Derived quantities and triggers ................................................................................. 13

2.8 Power Quality Option............................................................................................... 14

3 HINTS ON DEVICE ENGINEERING ........................................................................ 14

4 CONNECTIONS, INTERFACES AND OPERATING ELEMENTS.................................. 15

4.1 The front panel....................................................................................................... 154.1.1 Serial interface .............................................................................................................154.1.2 USB interface ...............................................................................................................154.1.3 Ethernet interface .........................................................................................................164.1.4 Operating status...........................................................................................................16

4.2 The back panel....................................................................................................... 174.2.1 Mains connection ..........................................................................................................174.2.2 Analog Measurement Inputs...........................................................................................18

4.2.3 Binary measurement inputs ...........................................................................................214.2.4 Rear communication and synch. interfaces, relay outputs ..................................................22

5 MAINTANANCE AND SERVICE .............................................................................. 23

5.1 Transport .............................................................................................................. 23

5.2 Calibration............................................................................................................. 235.2.1 Calibration confirmation ................................................................................................23

6 TECHNICAL DATA..................................................................................................24

6.1 Generic technical data ............................................................................................. 24

6.2 Environmental........................................................................................................ 246.3 Power Supply......................................................................................................... 24

6.4 Communication interfaced........................................................................................ 25


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SHERLOG CRT 4

6.4.1 Ethernet port ...............................................................................................................256.4.2 RS232 via fibre optic.....................................................................................................25

6.5 Analog inputs......................................................................................................... 256.5.1

High voltage inputs .......................................................................................................25

6.5.2 High current inputs 1A nominal ......................................................................................256.5.3 High current inputs 5A nominal ......................................................................................266.5.4 Low signal inputs, 10V................................................................................................266.5.5 Low signal inputs, 20mA .............................................................................................26

6.6 Binary inputs ......................................................................................................... 27

6.7 Relais outputs ........................................................................................................ 27

6.8 Internal GPS-Receiver ............................................................................................. 27

6.9 Fibre optic input for external GPS time synchronization ................................................ 27

6.10 RS485- input for external GPS time synchronization .................................................... 28

6.11 RS485 input for external DCF 77 time synchronization ................................................. 28

6.12 EMV und EMC Standards.......................................................................................... 29


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SHERLOG CRT 5

Copyright 2007 by KoCoS Messtechnik AG. All rights reserved. Doc. 72101xx - Rev. 1.00.

No part of this manual may be reproduced or processed, duplicated or distributed using electronic systems in any form(print, photocopy, microfilm or other method) without the prior written consent of KoCoS Messtechnik AG.

KoCoS Messtechnik AG is not liable for damage resulting from misuse, nor for repairs and alterations made byunauthorized third parties. This manual has been produced with great care. However, KoCoS Messtechnik AG does not

accept liability for errors due to negligence.

Note: all the product names which appear in this manual are brands of the companies concerned.

Even if a trademark symbol ( or ) is not given, it does not necessarily follow that a term used in this manual is not abrand name.


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SHERLOG CRT INTRODUCTION 6

1 IntroductionSHERLOG is a high-accuracy, digital fault recorder for the comprehensive monitoring ofpower equipment such as lines and bus bars and the protection devices and switchgear which

go with them.

As well as detecting faults and recording signal characteristics in high-resolution "faultrecords", the system also offers the option of making long-term records of r.m.s. value

characteristics and calculating all the relevant network parameters necessary for determiningand monitoring power quality, amongst other things. In combination with the comprehensiveconfiguration possibilities available for limit values (trigger thresholds), this function turnsthe SHERLOG fault recorder into a fully fledged power quality analyser.

For the purpose of comprehensively monitoring several energy systems, SHERLOG can

accommodate up to 16 analog inputs, 32 binary inputs and 4 relay outputs in a 19"/3HUhousing.

If systems with more channels are needed, the individual measuring systems can benetworked via bus adapters to provide a unit of the size required.

The NRGCenter software and a standard PC are used to configure and control the measuring

instrument as well as to read out, archive and analyse the recorded data. The NRGCenteruser manual describes the programme and how to use it, while the present operating

instructions describe the measuring instrument itself, i.e. the "hardware" and how to connectthe signals which are to be measured.

Eight status LEDs indicating the current operating status are located on the measuring

instrument itself, as are an LC display and a keypad which can be used to call up furtherinformation and operate major functions on site even when no PC is connected.


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SHERLOG CRT INTRODUCTION 7

1.1 Safety

Please read through these operating instructions carefully before connecting andcommissioning the measuring instrument. They contain important safety tips and warnings

which must be observed when working with SHERLOG.

1.2 General

WARNING

Warnings are highlighted by this symbol accompanied by the wordWARNINGin these

operating instructions. Warnings are used to indicate potential sources of danger. Improper

use can result in dangerous situations for the user or third parties.

CAUTIONThis symbol accompanied by the word CAUTIONis used to advise the user to take especial

care. Information about correct operation is highlighted in this way to avoid damage being

caused to the measuring system or to other devices which have been connected to it.

This symbol is used to warn the user of a danger and indicates that it is imperative that theuser should read the relevant passage of the operating instructions or user manual.

1.3 Safety tips and warnings

SHERLOG should only be operated by people who have received the correct training and whoare aware of the dangers of electric shocks and are familiar with the safety measures whichmust be taken to avoid potential injury.

The NRGCenter software package offers the option of managing a list of users and theirrespective access rights. This makes it possible to give only selected persons access tospecific functions of the measuring instrument (see the NRGCenter User Manual).

SHERLOG contains no parts which can be serviced by the user. Settings, servicing and

repairs requiring the device to be opened may only be carried out by specialist staff whohave been authorized to do so.

WARNINGOpening the device can lead to electric shocks. For this reason, the device should never be

opened in any circumstances.


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SHERLOG CRT SHORT DESCRIPTION 8

2 Short Description

The system concept of SHERLOG CRT results in a modular, high accuracy digital faultrecorder (DFR) with an integral power quality analyzer (option) designed to comprehensivelymonitor power equipment such as lines and busbars as well as the accompanying protective

equipment and switchgear.

SHERLOG systems are fully constructed using 32/128 bit DSP technology. All measurement

and monitoring functions are freely configurable via software.

ABB's longstanding experience in the field of substation automation proven in innumberable

projects all over the world lead to comprehensive application oriented pre-configuredSHERLOG CRT packages, which focus on streamlined project execution and a long term

satisfied customers by means of providing usually more functions and higher performancethan needed in most of all projects.

Various options are available in addition to enable the system integrator to fulfill special

project requirements as well as easy integration. The open architecture allows the customerto extend the installation in size as well as in functions in a later stage.

Straightforward architecture for highest reliability

SHERLOG CRT is based on straightforward concepts. These concepts have been mainly

influenced by end-users. KoCoS focused on easy to use on the one hand to minimize timeconsuming operation and a logical sequence how to do installation and device configurations.

2.1 HardwareThe hardware is based on a modular concept. The base device consists of a 19'' rack,including the power supply, and several communication interfaces as well as an integrated

user interface be made up of LEDs, pushbuttons and a illuminated 4-line ASCII display. 4relay outputs and 4 control inputs are foreseen to send and receive triggers from externaldevices and integrate the SHERLOG CRT in a station alarming system.

The basic equipment provides 8 analog and 16 binary inputs for process connectivity. OneSHERLOG CRT rack provides space for extensions which leads to 16 analog and 32 digitalinputs as maximum, all of them are galvanic isolated.

SHERLOG CRT devices can work in parallel. This results in even bigger recording systemswith a high number of analog and binary inputs.

All inputs and outputs, whether analog or binary, are galvanically isolated from themeasurement process. KoCoS linear opto-couplers (LOC technology) are used for the analog

inputs guaranteeing high levels of accuracy and the very highest degree of linearity acrossthe entire frequency range from 0 to 10 kHz.


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Various hardware options allow optimized process connection, possibilities for timesynchronization and the use of communication facilities in a station.

2.2 Software

The energy network monitors of the SHERLOG family are all configured and operated using

the flexible SHERLOG software package. All the tools you need to successfully complete yourspecific measurement tasks are united in the NRGCenter (pronounced energy centre)system software, starting from configuration and extending through to data managementand automatic fault location.

All modules have an ergonomically designed graphical user interface developed with real lifepractical requirements in mind. The standardized, intuitive operation and the templatesincluded with all SHERLOG systems ensure that you will be able to familiarize yourself quicklyand easily with the software.

2.2.1 ConfigurationA wealth of practical experience went into the design of the configuration module which takes

into account the actualities and the requirements of modern power supply systems in a verypractical way. The entry of measurement range parameters via transformer ratios is fully

supported as is the configuration of lines and bus bars via the corresponding network model.

In order to reduce the time and effort involved in configuration and to avoid incorrect entries,

each SHERLOG has an individual hardware profile which is stored securely in the measuringinstrument. These profiles contain the exact system configuration including all measurementrange parameters. If you wish to configure your SHERLOG system for a measurement task

this is done on the basis of the hardware profile. To complete the configuration you need onlyindicate the specific installation and function parameters. Parameters can be managed

separately for different measurement locations and can be assigned when the system isstarted up on site with just a few clicks of the mouse.

2.2.2 Fault Recorder Analysis

The graphical display is remarkable for the ease with which it can be operated and the shortdisplay building times.

Zooming and scrolling are carried out in real time, controlled by smartbars and with no needfor any manual entries via the keyboard.

Using the unlimited number of relative and absolute value cursors you can carry out exactmeasurements on signal characteristics.

All graph parameters such as line styles, colours, signal arrangement etc. can of course beset in accordance with individual requirements. The following functions are included:

Flexible parameterisation of fault events with pre-, fault and post-fault times

Parameterisation of two independent fault recorders

Definition of triggers on all analog, digital signals and in addition on all derived quantities

like frequency, symmetry, asymmetry, harmonics, distortion factor or power calculations Base analysis of fault records and archiving on the disk of a PC

Printing of records using predefined templates (layouts)

User handling by means of password protection and a small user management toolcomponent

This module provides additional functions to support the protection engineer in his in-depthanalysis.


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2.2.3 Extended Fault Analysis

This module provides additional functions to support the protection engineer in his in-depth

analysis:

Signal characteristics can be moved and over-laid via drag & drop.

Entire records from various locations and system sections can also be compared in thisway.

Automatic fault locator function with detection of fault type and fault distance

Comprehensive mathematical functions to calculate derived virtual channels with theinbuilt formula editor

Phasor display for U and I

Extended

COMTRADE import and export function

The powerful fault locator is used to locate and examine recorded transient states during and

after the occurrence of a disturbance. The fault locator determines all relevant fault dataautomatically or manually on the basis of the network model which has been saved. Bytaking into account the binary signals of breakers and protection devices recorded in parallel,an automatic function check on all parts of the installation is possible. Breaker operating

times and protective device response times which deviate from the specified values areautomatically identified and indicated.

By taking advantage of the supplementary tools for harmonic analysis and the dynamicvector diagram you can be sure that even minor disturbances cannot escape your notice.

2.3 Signal processing power close to the analog inputs

An analog input card comes always with its own dedicated signal processor card, whichincludes also the memory to storage the records and events. This means, that the calculation

power and the memory scales linearly with the number of analog signals. From a applicationpoint of view doubling the number of analog inputs demands also doubling the calculationpower and the storage capacity. This is guaranteed by the architecture and design ofSHERLOG CRT.

SHERLOG CRT comes in a 19'' housing, basically equipped with one wide range powersupply, various communication interfaces, the proprietary SHERLOG CRT link port and atleast one analog input packages as well as one binary input card.

2.4 Display, buttons and LEDs

SHERLOG CRT has integrated status LEDs, an illuminated matrix display with 4 lines and 20characters per line. In addition 20 push buttons are available for easy navigation.

The display provides information about system status, most important communicationsettings and selective online measurement information.

2.5 Communication interfaces

SHERLOG CRT provides various communication interfaces to enable easy integration invarious communication environments. All communication interfaces are galvanic isolated

2.5.1 Front communication ports

Three connectors are located on the front of the equipment:

RS232 USB 2.0

Ethernet (optional)


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The RS232 interface services by a SUB-D9 female connector, which can be configured for atransfer rates up to 460.8 kBaud. The USB 2.0 interface comes with a type 'A' connector. Allinterfaces are galvanic isolated.

2.5.2 Rear communication portsFor fix installed communication links some ports are located at the rear side of the device:

Electrical Ethernet port

Serial interface, type SUB-D9, RS232, for PC connection. Typically used for fix installedPCs like panel touch screens, serial remote uplinks or external modems

Optical serial interface to connect a remote master PC over a long distance, see chapteras an option.

RS 485 communication port to connect several SHERLOG Cx devices via a differentialRS485 network to a station PC.This port is galvanic isolated with 2.5 kV.

2.5.3 Additional rear ports

Besides the data communication ports and the measurement inputs for the analog and digitalsignals, SHERLOG CRT provides several ports at its rear side to integrate the device instation services like centralized time services or alarming systems:

Serial interface exclusively foreseen to connect electrical an external GPS or DCF77receiver as option

GPS antenna plug, if internal GPS receiver (option) is used. This plug replaces theelectrical GPS interface

Fibre optic or RS485 inputs to connect external GPS signals

4 alarm output contacts

4 binary inputs with common feedback path

8-wire SHERLOG link port


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2.6 Fault Recorder Funktion

All analog values are sampled with 37.5 kHz. This results in a very high amount of immediatedata, which are reduced in a very flexible and reliable way by the powerful DSP (DigitalSignal Processor). Decimation and interpolation algorithms are applied, which allows anydata rate from 100 Hz up to 30 kHz configurable in steps of 1 Hz.

The SHERLOG CRT recorder is able to perform this data reduction 3 times in parallel sourcingtwo independent fault recorders and one long term recorder, which can be configured aspower quality recorder compatible to norm EN 60150. Usually the first recorder is used as atransient recorder with high 'sampling' rate, typically 6000 Hz and the second recorder as

disturbance recorder with a low 'sampling' rate and by contrast a very long recording time.Pre, fault and post-fault times can be configured independently for recorder #1 and #2

Table 1 Acquisition characteristic for transient and disturbance recorder

Item Recorder #1 Recorder #2 Remark

Sampling rates 37,5 kHz per analog input,10,0 kHz for binary inputs

Data rate 100 Hz 30 kHz Due to the dynamic oversampling a(storage) data rate between 100 Hzand 30 kHz can be adjusted in stepsof 1 Hz.

Typical data rate 600 Hz 5 kHz

Range of pre-triggertime: Tpre

0 ms in steps of 1 ms or 1 sample

Range of post-triggertime:Tpost

0 ms in steps of 1 ms or 1 sample

Max. event time: Tmax In steps of 1 ms,typical: 10 s

In steps of 1 ms,typical: 600 ms

The maximum recording timedepends on the sampling rate andthe reserved memory for eachrecorder, see Table 2.

Typical event time 10 s 600 ms

Time for Tinhibit 0 ms several hours Can be adjusted for each eventseparately

Table 2 Examples for total recording time, a typical configuration for both recorders is shaded.

Total recording time for one recorder depending onstaorage capacity and data rate

500 Hz 826 s 1376 s 2753 s 4129 s 4955 s

1000 Hz 413 s 688 s 1376 s 2046 s 2477 s

2500 Hz 165 s 275 s 551 s 826 s 991 s

5000 Hz 105 s 138 s 275 s 413 s 495 s

6400 Hz 65 s 108 s 215 s 323 s 387 s

10000 Hz 41 s 69 s 138 s 206 s 248 s

Datarate

30000 Hz 14 s 23 s 46 s 69 s 83 s

15% 25% 50% 75% 90%

Procentual part of flash storage used for one recorder


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2.7 Derived quantities and triggers

SHERLOG Cx is able to calculate online a wide range of derived quantities. For all thisquantities over, under and gradient (d/dt) triggers can be enables.

RMS values Phase angle

Form- and Crestfactor

Unbalance

Frequency

Positive, negative and zero sequence

Total harmonic distortion (THD)

Total interharmonic distortion (IHTHD)

Sum even-,odd-, third-harmonic

Up to singular 40ndharmonic (magnitude, angle)

Active power, reactive power, and apparent output (P, Q, S)

Table 3 Trigger criteria for recorders

Criteria Kind of input

Over / Under limit

d/dt

On all physical analoginputs and calculatedvalues (derived quantities)

Rising and/orfalling flank

Both, on all binary inputs

External impulsefrom other units

SHERLOG link port

Remote start sentby NRGOnlinesoftware


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SHERLOG CRT HINTS ON DEVICE ENGINEERING 14

2.8 Power Quality Option

The power quality analyser measures all currents and voltages and continuously calculatestheir RMS values in real time, making them available per half-wave. On the basis of thesevalues and the phase relationships recorded synchronously, the system calculates amultitude of further parameters for each bus bar or line monitored. Power values, harmonicsand flicker are just a few of the parameters which can be calculated in this way.

All measured values are compressed and can be stored securely in freely configurablearchives for almost any length of time. Adaptive and event-controlled storage algorithmsensure that values are only saved when the signals monitored violate at least one of the limit

values configured by the user. Once an event such as a voltage dip occurs, the RMS valuesare recorded at an increased rate. The data acquired in this way serves as a basis for furtherstatistical analyses in accordance with current standards such as EN50160 or CBEMA.

Measurements according to norm IEC60000-3-4, class A:

Voltage RMS values (max, min, avg)

Frequency of voltage phase L1

Harmonics up to 40th

Interharmonics up to 39th

Total harmonic distortion (THD)


Power Factor

Flicker (PST, PLT, PFST, PFLT)

The norm IEC60000-3-4 specifies only voltage measurements. But for drawing the rightconclusions, it is from a high practical value to measure in addition the currents tocalculate the power values (P, Q, S). SHERLOG Cx provides in addition continuous powerquality recordings on:

Current RMS values (max, min, avg)

Harmonics up to 40th

Interharmonics up to 39th Total harmonic distortion (THD)


Active power, reactive power, and apparent output (P, Q, S)

SHERLOG CRT customer's will make full use of all these data with the comprehensive PowerQuality analyse software, which is an option of NRG.Center suite.

3 Hints on Device EngineeringEach SHERLOG CRT provides a proprietary 8-wire link port to operate several SHERLOG

devices in as a master slave system. Synchronization as well as cross-triggering informationis exchanged by means of this port.

The maximum length for this 8-wire interconnection cable is 500 m and therefore sufficientto interlink devices, which are located in the same building.

After a general trigger condition all SHERLOG CRT devices will capture all signals, which areconnected. Each recorder is connected to the station PC by means of network connection orserial RS485 or RS232 connections.

The analysis software NRGAnalysis is able to merge these files and displays a comprehensiveview of a station for detailed analysis.

The software NRGCenter produces record files, which contain dependent on the trigger a pre-defined selection or the complete set of analog and digital traces generated by a trigger-condition.


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SHERLOG CRT CONNECTIONS, INTERFACES AND OPERATING ELEMENTS 15

Linking several SHERLOG CRT devices to build recorders with a huge number of inputs or forthe issue to split locate several recorders in different cubicles

4 Connections, interfaces and operating elementsAll the connections required for connecting the measurement signals are located on the back

panel. Use the measuring leads provided to make the connections.

The individual in- and outputs are arranged in groups which are indicated by their positionand labels.

Detailed information regarding the entire measurement system can be found in the chaptertitled Technical Data. The technical data included in the present chapter is only intended toprovide an overview.

Communications interfaces for connecting the PC are located on both the front and backpanels.

The LCD screen and the function keys for on-site operation without a PC are located on thefront panel.

4.1 The front panelThe following elements are located on the front panel:

Serial interface

USB interface (optional)

Ethernet interface (optional)

Optical interface (optional)

LCD screen

Keyboard for on-site operation

They are described in greater detail below.

4.1.1 Serial interface

The RS-232 serial connection of the measuring system is linked to the serial

connection of the operating PC via a 1:1 cable (SHERLOG: DB-9-connector; PC:DB-9-socket). Do not use a null modem cable with reversedtransmitter/receiver lines!

RS232

Figure 1 Serial interface, 9-pole, SUB-D

4.1.2 USB interface


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USB is a platform for serial transmission created by Microsoft, Intel and various

Ethernet interface

e provided as an optional extra.

PC suppliers. The USB interface which can be built in to the measuring system as

an optional extra is passive, i.e. this interface is used for communication with aPC or notebook only.

USB

4.1.3

An ethernet interface can b

Ethernet

The optical unit is supplied with power via the RS232 interface or the USB port obviating theneed for an auxiliary power supply for data transmission.

Operating status

t-emitting diodes located on the front panel indicate theidual

4.1.4

A number of lighoperating status of the measuring instrument. The significance of the indivLEDs is indicated in the table below.

LED Name

1 Power Lights up when the device is switched on and a

supply voltage is available.

Flashes when the instrument has switched to battery

operation.

2 Signal detect Not in use

3 Recording Lights up when recording is in progress.

4 Time Sync Lights up when time synchronisation is logged in.

5 New Data Lights up to indicate the presence of newmeasurement data which has not yet been picked

by the operating PC.

up

6 Comms nication on the serialIndicates data commuinterface.

7 Memory full hen internal memory is 80%full.Lights up w

8 System Error Lights up when a system error has been detected.


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4.2 The back panel

The following elements are located on the back panel: Mains connection

Power switch

Analog measurement inputs

Binary inputs

Relay outputs

Communications interfaces

Aerial connection for DCF or GPS (optional)

Link connections for networking several measuring instruments (optional)

These elements are described in greater detail below.

4.2.1 Mains connection

The measuring instrument is supplied with power via the 3-pole power input

socket. The fuse holder is located between the power input socket and thepower switch.

CAUTIONCheck the mains voltage and frequency before connecting the device. The device may onlybe operated within the mains voltage range detailed on the rating plate. Operating the device

with an incorrect mains voltage may damage it and leads to loss of the guarantee.


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4.2.2 Analog Measurement Inputs

The analog inputs are arranged in groups of 8, all inputs being galvanically isolated from one

another as well as from the mains input. Each group has an analog input card (AMOD) for

signal conditioning and galvanic isolation and a processor card (ABI) which is equipped with ahigh-precision A/D converter, a digital signal processor and sufficient memory. The serialinterface (sub-D socket) which is sometimes located on this processor card is intended forservice purposes only and cannot be used as a normal communications interface.

SHERLOG CRT provides to following input types:

High voltage input

High current inputs

Low signal inputs

Available measuring ranges:

Input Type Range

High voltage input 0 to 300VAC

High current input In= 1AAC with 40xIn

In= 5AAC with 40x In

Low signal inputs +-10VDC

+-20mA

SHERLOG CRT with 4 voltage- and 4 current inpus

Pin assignment

Pin Channel No Range Pin Channel No Range

K1 In = 1A oder 5A U1.1 L 300V AC

L1Current input 1

N U1.2Voltage Input 1

N


L2Current input 2


N


L3Current input 3


N


L4Current input 4


N


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SHERLOG CRT with 8 voltage- and 8 current inputsStromeingngen

Pin assignment



L1Current input 1


N


L2Current input 2


N


L3Current input 3


N


L4Current input 4


N


L5 Current input 5 N U9.2 Voltage Input 5 N


L6Current input 6


N


L7Current input 7


N


L8Current input 8


N

SHERLOG CRT with 4 voltage- and 12 current inputs


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Pin assignment



L1

Current input 1

N U1.2

Voltage Input 1

NK2 In = 1A oder 5A U2.1 L 300V AC

L2Current input 2


N


L3Current input 3


N


L4Current input 4


N

K5 In = 1A oder 5A K9 In = 1A oder 5A

L5Current input 5

N L9Current input 9

N


L6Current input 6

N L10Current input 10

N

K7 In = 1A oder 5A K11 In = 1A oder 5AL7

Current input 7N L11

Current input 11N


L8Current input 8

N L12Current input 12

N

The transformation ratios of any voltage and current transducers which may be in use can be

set in the software. SHERLOG then automatically converts the measured quantities to therelevant primary values. More detailed information regarding this matter can be found in theNRGCenter user manual.


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4.2.3 Binary measurement inputs

SHERLOG CRT can be equipped with a total of 32 binary inputs. All inputs are galvanicallyisolated from the power system as well as from one another.

The binary inputs are potential-free (dry) in general. This means that an external directvoltage must be applied from outside to trigger the inputs.

The binary inputs are extended range inputs which can reliably detect a voltage from 24VDC

to 300VDC. Attention must be paid to the polarity.

Because of the way they are made, it is possible that the response threshold of the binaryinputs may lie below 24VDC.

The pin assignment of the binary inputs are explained below for channel 1 to 8. The pinassignment for the channels 9 to 16, 17 to 24 and 25 to 32 are identical.

Kanal 1 +

Kanal 1 GND

Kanal 3 +

Kanal 3 GND

Kanal 4 +

Kanal 4 GND

Kanal 5 +

Kanal 5 GND

Kanal 6 +

Kanal 6 GND

Kanal 7 +

Kanal 7 GND

Kanal 8 +

Kanal 8 GND


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4.2.4 Rear communication and synch. interfaces, relay outputs

SHERLOG CRT, position of interfaces


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SHERLOG CRT MAINTANANCE AND SERVICE 23

5 Maintanance and ServiceSHERLOG contains no parts which can be serviced by the user.

A dry cloth should be used to clean the measuring system.

CAUTIONNever use solvents or water to clean the measuring instrument.

5.1 Transport

Take care when transporting the measuring instrument! Never drop the measuring

instrument or allow it be knocked over. When transporting or operating the measuringinstrument, make sure it is always in a stable position and cannot fall down, slip or tip over.

CAUTION

Note that knocks and vibration may damage the measuring system.

5.2 Calibration

Changes in the amplification and/or offset of the analog inputs may take place over time ascomponents of the measuring system age.

As with all precision measuring instruments, regular calibration is necessary in order to en-

sure that measurements are carried out correctly. We recommend that the measuringsystem be calibrated on a yearly basis.

SHERLOG has been specially designed to allow calibration by the user. This means that nooperation time need be lost through sending the measuring system to our factory or to oneof our branches.

Calibration is controlled by the software. All calibration parameters are calculated

automatically and are saved permanently and safely in the measuring instrument in a flashROM. There is no need to open the device and make adjustments using potentiometers etc..

Please note that the accuracy of the calibration depends on the accuracy of the referencesource used. If the necessary sources are not available, SHERLOG should be sent away for

calibration.

The NRGCenter User Manual contains more detailed information regarding calibration.

5.2.1 Calibration confirmation

This measuring instrument has been tested and calibrated in accordance with the publishedtechnical data.

Calibration is carried out using measuring instruments which are compared and set inaccordance with certified measurement standards at regular and suitable intervals.


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SHERLOG CRT TECHNICAL DATA 24

6 Technical data

6.1 Generic technical data

Min. number of analog inputs 8

Max. number of analog inputs 16

Min number of binary inputs 16

Max number of binary input 32

Relais outpus 4 kontacts (NO/NC)

Housing 19, 3 HU

Protection class IP 20

Dimensions (B x H x T) 160 x 78 x 260 mm

Weight 4kg

Power consumption Max. 45VA

6.2 Environmental

Operating temperature 0 bis +50 degrees C

Storage temperature -10 bis +55 degrees C

Humidity 5 bis 95% non condensing

Elektrostatic discharge (IEC 61000-4-2) Class A

Radiated electromagnetic field (IEC 61000-4-3) Class A

Schock IEC68-2-27 (EIN 60068-2-27) 15g, 10ms,x,y,z positiv und negativ

MTBF 15 Jahre

6.3 Power Supply

Input voltage 90 350VDC

85 265VAC, 47 63Hz

Safety Standards EN 60950, UL 1012, UL 1950

Fast transient capability EN 61000-4-4 light industrial level

Surges withstand capabilty EN 61000-4-5 light industrial level

Electronic emissions EN 55022 Class B

MTBF 35 years

Hold up time 10ms according to EN 61000-4-11


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6.4 Communication interfaced

6.4.1 Ethernet port

Port RJ45, 10/100 Base T(X) autosensing

Standards IEEE802.3/802.3u/802.3x

Cable limitations Cat.5 up to 100m

6.4.2 RS232 via fibre optic

Connector Type 2 x ST 2

Supported fibers 50/125, 62,5/125 multi-mode

Wave length 820 nm

Max. optical output power -8 dBm

Min. optical output power -10 dBm

Receiver sensitivity(min. level at RX input) -25,4 dBm/pk

Receiver saturation (max. level at RX input) -9,2 dBm/pk

Max. distance for multi-mode fiber 2 km typical

6.5 Analog inputs

6.5.1 High voltage inputs

Nominal value Vn = 300 VAC

Absolute max. value Vmax = 510 V for unlimited time

Accuracy 0,1%

Impedance 684 kOhm

Galvanic isolation Channel to channel: 2500 VAC

Channel to ground: 2500 VAC

6.5.2 High current inputs 1A nominal

Nominal value In = 1 AAC

Range 40 x In

Absolute max. value Imax = 16 AAC for unlimited time

Imax = 100 AAC for max. 1s

Accuracy 0,1%

Impedance 0,1 mOhm


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6.5.3 High current inputs 5A nominal

Nominal value In = 5 AAC

Range 40 x In

Absolute max. value Imax = 16 AAC for unlimited time

Imax = 200 AAC for max. 1s

Accuracy 0,1%

Impedance 0,1mOhm

Galvanic isolation Channel to channel: 2500 VACChannel to ground: 2500 VAC

6.5.4 Low signal inputs, 10V

Nominal value Vn = 0 10V or 10V

Selectable per software

Absolute max. value Vmax = 11 V for unlimited time

Accuracy 0,1%

Impedance 1,5 MOhm



6.5.5 Low signal inputs, 20mA

Nominal value In = 4 20mA, 0 20mA or 20mASelectable per software

Absolute max. value Imax = 38mA or 18V for unlimited time

Accuracy 0,1%

Impedance 470 Ohm




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6.6 Binary inputs

BMOD 16

Number of inputs 16 or 32

Galvanic isolation Each by each input

Galvanic isolation voltage 2500 V

Nominal voltage 24 VDC 300 VDC

Typical current, need for transitioninto active state

4 mA

Sampling rate 8kHz

Absolute max. rating 300 VDC

Absolute min. rating -300 VDC

6.7 Relais outputs

Normal position NO/NC, configurable by jumpers

Galvanic isolation 2500 VAC, Dry contacts

Max. ratings 0 220 VDC, Imax. = 2A, 60W resistiv

6.8 Internal GPS-Receiver

Antenna plug at the rear side of the SHERLOG rack Type: SMA

Cable type Coax, e.g. RG 316

Impedance: 50 Ohm

Cable length (delivered) 12m (2m Antenna, 10m extension

cable)

Max. cable length without using a signal amplifier 40 m

6.9 Fibre optic input for external GPS time synchronization

Connector Type 2 x ST 2

Supported fibers 50/125, 62,5/125 multi-mode

Wave length 820 nm

Max. optical output power -8 dBm

Min. optical output power -10 dBm

Receiver sensitivity(min. level at RX input) -25,4 dBm/pk


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Receiver saturation (max. level at RX input) -9,2 dBm/pk

Max. distance for multi-mode fiber 2 km typical

Time Telegram NMEA GPRMC

Default Baudrate 4800 Baud, 8N1

PPS Signal Positive second pulse

6.10 RS485- input for external GPS time synchronization

Connector Symbol Rx+, Rx-

Mode of Operation Differential

Time Telegram NMEA GPRMC

Default Baudrate 4800 Baud

Voltage Input Range +- 12V

Time Telegram

Impedance >12kOhm, 100 Ohm with termination

Connector Symbol PPS+, PPS-

Mode of Operation Differential

Voltage Level +-12V

PPS

Impedance >12kOhm, 100 Ohm with termination

6.11 RS485 input for external DCF 77 time synchronization

Connector Symbol +, -

Output Voltage 5VDC

Power Supply Outputfor Antenna

max. output current 200mA

Connector Symbol Z, Y

Mode of Operation Differential RS485

Voltage Input Range +- 12V

Telegam Input

Impedance >12kOhm, 100 Ohm withtermination


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6.12 EMV und EMC Standards

Item Value StandardReference

Radiated radio disturbances

(Housing)

30 to 230 MHz, 40 dB230 to 1000 MHz, 47dB

industrial area

CISPR 16-1CISPR 16-2

CISPR 22

Conducted radio disturbances

(AC-Mains)

0,15 to 0,5 MHz,79dB(V) Q, 66dB (V)

M

0,5 to 5 MHz,73dB(V) Q, 60dB (V)

M

5 to 30 MHz,73dB(V) Q, 60dB (V)M

industrial area

CISPR 16-1CISPR 16-2

CISPR 22

Radio frequency electro-magnetic field.Amplitude modulated

80 to 1000 MHz, 10V/m,1kHz

EN 61000-4-3

Electromagnetic field Power line frequency 30A/m; 50Hz EN 61000-4-8

Electrostatic discharge (ESD) Up to +- 8kV,air discharge

EN 61000-4-2

Electrostatic discharge (ESD) Up to +- 4kV,

contact discharge

EN 61000-4-2

Radio frequency common mode 0,15 to 80MHz, 1V,80%AM 1kHz

EN 61000-4-6

Radio frequency common mode 0,15 to 80MHz, 3V,80%AM 1kHz

EN 61000-4-6

Voltage interruptions 0,5 periods,

100% reduction

EN 61000-4-11

Fast transients (Burst) +- 2kV(peak) 5/50ns(Tr/Th)5kHz repetition freq.

EN 61000-4-4

Fast transients (Burst) +- 1kV(peak) 5/50ns(Tr/Th)5kHz repetition freq.

EN 61000-4-4

Transients (Surge) +-1kV, 1,2/50 (8/20)s

line to line+- 2kV line to earth

EN 61000-4-5

Environmental test: Shock Half sine, 15g, 10ms EN 60068-2-27

Flicker emissions PST 10 min EN 61000-3-3

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