PowerLogic ION7550/ION7650Energy and power quality meters

Schneider Electric 2- Division - Name – Date

Purpose

●Improve power quality measurements and enhance functionality. (Certified ION7650 according to the IEC 61000-4-30 Class A)

● Anti-Aliasing

● Flicker

● Trending & Forecasting

● Disturbance direction detection

● Alarm Setpoint Learning

●Support new Ethernet Card for faster connections ● 100BASE-T/100BASE-FX● SNMP traps●Multilingual HMI

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Markets. Supply Side. Cont…

●Reasons to buy

● Multipoint, multi-protocol communications

● PQ compliance monitoring

● Transient detection

● Waveform recording sampling rate

● High accuracy revenue metering

● ITC (Instrument Transformer Compensation). Eliminates need to replace Instrument transformers where accuracy is required

● Transformer losses compensation when the meter is in a different location than the billing point.

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Positioning

●Customers with Medium and Large Energy Consumption● Reduce energy costs

● Making energy a variable cost

●Customers with Process Sensitive to PQ or Power Reliability● Improve reliability

● Improve PQ

●The ION75/7650 together with the ION-E software provides a powerful tool that offers many other features to the above customers.

Schneider Electric 9- Division - Name – Date

What is Aliasing?

● Aliasing is an effect that causes different continuous signals to become indistinguishable (or aliases of one another) when sampled. When this happens, the original signal cannot be uniquely reconstructed from the sampled signal.

● Aliasing is a major concern in power quality analysis because improper sampling of the analog signal will cause high-frequency components to be aliased with genuine low-frequency ones, and be incorrectly reconstructed.

IEC 61000-4-7 (2002) :Aliasing

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Aliasing EffectWagon Wheel Example

● Optical illusion that occurs in older movies when wagon wheels appear to be turning backwards.

● Caused by slower frame speed of camera relative to the high speed of the wagon wheels.

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What Causes Aliasing?● Aliasing (or folding) occurs when a signal is sampled at a rate that is insufficient to capture

the changes in the signal. ● Sampling at a lower rates results not only in missing data, but also incorrect re-creation of

the waveform, leading to faulty analysis.

Sampled SourceSampling PointRe-created Signal

Sampled Source Re-created Signal

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Aliasing Effect Example

010

20304050

607080

90100

1 3 5 7 9 11

Harmonic Component

Am

pli

tud

e (%

)

01020304050

60708090

100

1 3 5 7 9 11

Harmonic Component

Am

pli

tud

e (%

)

Sampled Source

Re-created Signal

Sampled Source Re-created Signal

Actual

Reported

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How do you avoid Aliasing?● The Nyquist Sampling Theorem states that in order to avoid aliasing, the

sample rate should be at least twice the highest frequency contained in the sample

Sampled SourceSampling PointRe-created Signal

Sampled Source Re-created Signal

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Sampling Rate

●Sample rates are important in adequately representing the original signal.

●Oversampling the original signal:● Increases the meter’s bandwidth

● Reduces metering error

● Provides a closer approximation to the original signal

PQA 2004

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What is new with firmware 350?

●Trending and forecasting

●Disturbance direction detection

●Setpoint learning

●Gateway Functionality with Modbus TCP protocol

●Simple Network Management protocol (SNMP)

●100 Base TX/FX

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Trending and forecasting

● Trends and Forecast up to 10 different user configurable

channels● Hourly – Displays last 24 hrs plus current.● Daily– Displays last 30-31 days plus current.

.

● Viewable through ION75/7650 Web-pages by using Ethernet port and IE

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Disturbance direction detection

● Requires a trigger (Sag, Swell or a

Transient) to run the algorithm

● Then the ION 75/7650 determines the

direction of a disturbance

● Provides a confidence score and the

direction of the disturbance. All recorded in

the Event Log.

● While the algorithm for a transient is

running, any further pulses are ignored.

Confidence Scores

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Alarm Setpoint Learning● Setpoint Module (65).- Monitors a source with respect to an

absolute threshold and it can evaluate either an over or an under condition

● Sag/Swell Module (1).- The Sag/Swell Module learns two values: a sag limit and a swell limit

● Disturbance Analyzer (6).- Learns an over-alarm If the pickup value is greater than 100% of the nominal value at the moment when learning period is initiated; also, an under-alarm will be learned if the pickup values is less than 100% of the nominal value.

● And Transient Module (6).- Evaluates when transients occur in the system.

● All four modules Include the following characteristics:● Learn now input● Learn install mode● Learn duration

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Gateway Functionality with Modbus TCP protocol

● Provides gateway functionality when the Ethernet port and/or modem options are present

● Modbus Master allows front panel display of real-time parameters from any downstream Modbus devices.

EtherGate ModemGate

Ethernet Telephone lineSerialSerial

● EtherGate: access via Ethernet port and ModbusTCP to daisy-chained Modbus devices connected to the meter’s serial ports

● ModemGate: access from telephone network to devices connected to the meter’s serial ports

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Simple Network Management protocol (SNMP)

● Some applications as Data Centers and Critical Power require SNMP protocol to map (convert) registers or data from the meter in to usable information for the different systems.

● This implementation of the ION7650 and 7550 supports read only mode, except for the following SNMP related text strings:

● System Contact

● System Name

● System Location

● You can also customize the text on the meter’s MIB (Management Information Base) file: ion7x50schneiderMIB.asn.

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100 Base TX/FX Connectivity

●New communications cards support 100 Base TX and 100 Base FX connections

●This will support more network infrastructures

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New communications card. (Field installations)

●Firmware v350 or higher is required

●The 7550/7650 communications card is not supported on legacy meters ION7500 and ION7600.

●The difference is only that the D7 and F1 provide faster Ethernet connections (100Base-TX and 100Base-FX rather than 10Base-T and 10Base-FL).

Schneider Electric 35- Division - Name – Date

New communications card. (Field installations)

Comm Card Type

Special

Order

P765C

ION7550 / 7650 Comm Card*

Order Code

Description

Comm Card P765C ION7550 / ION7650 Communications card for field retrofit installations

Type A0 Standard communications (1 RS-232/RS-485 port, 1 RS-485 port). Front optical port support for meters with integrated display.

C1 Standard communications plus 10/100BASE-T Ethernet (RJ-45), 56k universal internal modem (RJ-11; the modem port is shared with the front optical port). Ethernet and modem gateway functions each use a serial communications port.

D7 Standard communications plus 10/100BASE-T Ethernet, 100BASE-FX Ethernet Fiber, 56k universal internal modem (RJ-11; the modem port is shared with the front optical port). Ethernet and modem gateway functions each use a serial communications port.

E0 Standard communications plus 10/100BASE-T Ethernet. Ethernet gateway function uses a serial communications port.

F1 Standard communications plus 10/100BASE-T Ethernet, 100BASE-FX Ethernet Fiber (SC fiber optic connection). Ethernet gateway function uses a serial communications port.

M1 Standard communications plus 56k universal internal modem (RJ-11; the modem port is shared with the front optical port). Modem gateway function uses a serial communications port.

Special Order A None

C Tropicalization treatment applied

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New communications options and part numbers

● Example of New Part Number with one of the new communications options:

M7650B1C0B6F1A0E

Communications

■ A0.- Standard Comms: 1 RS232/RS485 port (COM1), 1 RS485 (COM2), Integrated display models also include a Type 2 ANSI optical port (COM4)

■ E0.- Standard Comms. plus Ethernet 10/100 BaseT Ethernet (RJ-45). Ethernet gateway function uses a serial communications port.

■ D7..- Standard communications plus 10/100Base-T Ethernet (RJ-45) and 100BASE-FX Ethernet Fiber, 56k universal internal modem (RJ-11). Ethernet and modem gateway functions each use a serial communications port.

■ F1.- Standard communications plus 10/100Base-T Ethernet (RJ-45) and 100BASE-FX (SC fiber optic connection). Ethernet gateway function uses a serial communications port.

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Integration with ION-Enterprise

●Version 5.6 SP1 supports all new features of the ION75/7650 firmware version 350