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NEOPIS Co,. Ltd
World Wide Web
www.neopis.com
Headquarter
623, U-Chun Factopia Bd, 196 Anyang-7dong,
Manan-gu, Anyang City, Kyonggi-do, Korea
430-017
Tel : +82-31-467-2700
FAx: +82-31-467-2711
Printed in Korea
Revision Date : Feb 12, 2005
Overcurrent Protection Relay Instruction Manual
(PROMET-U-I)
Neopis Co, Ltd.
Neopis Co, Ltd.
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1
Table of Contents
1. General Information 3 1.1. PROMET-U-I Overview ........................................................ 3
1.2. PROMET-U Order............................................................... 5
2. Rated Specifications 6 2.1. Equipment ....................................................................... 6
2.2. Control Power ................................................................... 6
2.3. Electric Current Input........................................................... 6
2.4. Digital Input/Output............................................................. 6
2.5. Communication ................................................................. 7
2.6. Test and Environment.......................................................... 7
3. Install and Operation 8 3.1. Front Panel Layout ............................................................. 8
3.2. Terminal Map (view)............................................................ 9
3.3. Connection View ...............................................................10
3.4. Dimensional and Panel Cutout size ........................................11
3.5. Communication Circuit Connection ........................................14
4. Functions 15 4.1. Protection Relay Function ....................................................15
4.2. Recording function ............................................................21
5. Operation and Setup functions 23 5.1. Operation status LED .........................................................23
5.2. Measuring display function...................................................24
5.3. Main menu layout..............................................................24
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Note
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Note
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! Caution
Please read the user manual before installing the product
Make sure control power, electric current and voltage are turnedoff before connecting or disconnecting PROMET-U.
Make sure there is no physical damage or missing part beforeinstalling PROMET-U.
High voltage and high electric currents are circulating in theterminals of PROMET-U. Direct contact might lead to a fatal injury.
Please keep it away from flammable or hazardous materials.
You must set up PROMET-U in accordance with its systemcomposition. Any non-compliant setup may cause PROMET-U todisplay wrong information or to malfunction.
Please connect voltage/electric current to backside terminalsaccording to their relevant terminal numbers.
!
!
!
!
!
!
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1. General Information
1.1. PROMET-U-I Overview
PROMET-U-I is the highly reliable digital protection relay designed to effectively
protect three-phase lines.
The relay has electric current relaying elements, OCRs and OCGR etc.
Moreover, It enables real-time and remote supervisory & control by facilitating
alignment with central supervisory system through various communication methods.
Its main functions and features are as follows;
1) Compact facility
It boasts of its compact digital switchboard as well as easy installation and
operation; it incorporates several analog relays used for existing switchboards
into 1 digital relay thereby allowing compact composition of its switchboard.
2) Provision of various communication interfaces
It provides various communication interfaces which can be applied to any
environment as it accommodates different standard protocols. Therefore, without
installing a separate protocol converter, a user can implement the supervisory
and control system in a fast and convenient manner.
3) Provision of various event information
- Operation event
It stores and manages up to 64 events which take place during operation such as
control event (On, Off, Trip) and diagnosis event in the order of occurrence time
sequence.
- Fault Event
In case of line fault, it stores and manages fault information (time, type of failure,
operation, relay elements, etc.) up to 32 events in the order of time sequence.
4) Fault Wave Storage function
As for the latest failures, it stores and manages 60 cycle sample data for
maximum 2 events. Users can utilize such stored fault waves in their cause/effect
analysis.
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④. Initialization of Calibration Value
This menu allows you to initialize calibration values stored in PROMET-U. If you
select this menu, the following screen will pop up and upon selection of fault
deletion YES, all calibration information will be initialized.
Fig 52) Initialization of Calibration Value Menu
[ Default Calib ]
-> No
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②. Initialization of Relay Element related Setup
This menu allows you to initialize relay element related setup values stored in
PROMET-U. If you select this menu, the following screen will pop up and upon
selection of fault deletion YES using <Up><Down> key, all setup information
will be initialized.
Fig 50) Initialization of Relay Element related Setup Menu
③. Initialization of System related Setup
This menu allows you to initialize system related setup values stored in PROMET-
U. If you select this menu, the following screen will pop up and upon selection of
fault deletion YES by using <Up> <Down> key, all setup information will be
initialized.
Fig 51) Initialization of System related Setup Menu
[ Default Setting ]
-> No
[ Default System ]
-> No
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5) Convenient User Interface
Through the communication port installed on the fore part of the body, you can
easily key-in and define various setup and calibration controls using PC (using
the software provided by our company)
6) Various Control Power
Various control powers can be used, as it is a free voltage type (AC/DC 110-
220[V]).
7) Self-diagnosis and Backup function in case of power outage
PROMET-U performs on-going self-diagnosis such as CPU Check, Memory
problem identification, I/O diagnosis and control power check, and it issues
warning and stores diagnostic events to enable rapid user response if there are
any defects or failures identified.
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1.2. PROMET-U Order
1) Operation Voltage
- AC/DC 110~220V : PROMET-X-X-AV1-XXX
- AC/DC 20~60V : PROMET-X-X-AV2-XXX
2) Frequency
- AC 60Hz : PROMET-X-X-AVx-F60
- AC 50Hz : PROMET-X-X-AVx-F50
3) SGR Option
- Un-grounding System(SGR ) : PROMET-X-D-AVx-XXX-SG
- Grounding System (DGR) : PROMET-X-D-AVx-XXX-DG
Type Comm Recording
U
N
R
C
Type Protective Function
I OCR, OCGR
V OVR,OVGR,UVR
VI OCR, OVR, UVR
P OVR,UVR,OVGR,POR
D OCR,OVGR,SGR/DGR
M OCR,OCGR,THR,NSOCR,
POR, UCR, [66],[48]
PROMET U I
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Fig 47) Password Menu
Fig 48) Saved Information deletion menu
①. Fault Information Deletion
This menu allows you to delete event occurrence information stored in PROMET-
U. If you select this menu, the following screen will pop up and upon selection of
fault deletion YES using the <Up><Down> key, all event information will be
deleted.
Those deleted include fault events, action events and fault waves.
Fig 49) Fault Information Deletion menu
[PROMET-U PassWord]
[00]
[ Info Clear Menu ]
->1.Clear Event Info
2.Default Setting
3.Default System
4.Default Calib
[Clear Event Info]
-> No
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Fig 45) Calibration Menu
You can select the channel you want to calibrate using <Up> <Down> key and
display the calibration screen as follows.
You shall input displayed electric current into its relevant input channel and press
<Enter> key to complete calibration for the selected channel.
Fig 46) A Channel Calibration Menu
5.3.9. Stored information Deletion Menu
This menu allows you to initialize setup values, event information, calibration values,
etc., which are stored in the backup memory of PROMET-U.
Selection and movement of the menu are the same as the main menu.
You must select password for the protection of stored information. You can select
password in the range from 0 to 99 using Up/Down key and the default password
value is currently defined as [99].
[Calibration MENU]
->1.Ia
2.xIa
3.Ib
4.xIb
5.Ic
6.xIc
7.In
8.xIn
Cal]IA= 0.00A
>Input: 5.00A
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2. Rated Specifications
2.1. Equipment
1) size (HxWxD): 180 x 149 x 180
2) Weight: 3.3 kg
2.2. Control Power
1) Input voltage: AC/DC 110-220V (Free Voltage), AC/DC 20-60V(option)
2) Power Consumption: 5W or less
2.3. Electric Current Input
1) Connection : three-phase three wire system, three-phase four wire system
2) Rated input: rated current 5A, rated frequency 50/60Hz
3) Input Burden: 1VA and below
2.4. Digital Input/Output
1) Digital Input
Input Type Input
Number Input Circuit Isolation
Configurable User Input
2 Port AC220V/DC250V AC110V/DC125V
DC48/24V
Photo-isolated Input
2) Digital Output
Output Type Output Capacity
TRIP 30A/250VAC
Alarm 5A/250VAC
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2.5. Communication
Items Specifications
Type RS485 Two-wire, Half duplex, isolated
Baud Rate 9600 / 19200bps
PROTOCOL MODBUS-RTU, DNP3.0, IEC60870-5, Lonworks
2.6. Test and Environment
Items Specifications Operating Temperature -20 ~ 60°C
Temperature Storage Temperature -25 ~ 70°C
Humidity 30 ~ 80%
Insulation Resistance > 10MΩ AC Voltage Tests AC 60Hz 2000V/1min
Surge Impluse 1.2/50uS 5kV +/-
Overload Current: 100Arms for 2second Voltage: 1.15 times rated for 3hoursPower: 1.3 times rated for 3hours
Oscillatory Transient IEC60255-22-1 2.5kV
EFT/Burst IEC60255-22-4 Class A : 4kV
RFI Susceptibility IEC60255-22-6
Radiated electromagnetic IEC60255-22-4
Surge IEC60255-22-5 : 4kV
ESD 60255-22-2: Contact(6kV), Air(8kV)
Test
EMI IEC 60255-25
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③. LED TEST Menu
This menu allows you to test LED’s. A confirmation menu asking whether to start
LED’s test will pop up. If you hit <Enter> key, all LED’s will be outputted as ON.
When the LED test is completed, the completion screen will be displayed. You
can move back to its higher menu by striking <Mode> key.
Fig 43) LED TEST Starting Menu
Fig 44) LED TEST End Menu 5.3.8. Calibration Menu
This menu allows you to calibrate electric current’s input signal. In order to prevent users from getting into the menu during operation, this menu is composed differently from others. If you want to conduct calibration on electric current’s input signals in the field, please contact our A/S (after sales) center for further assistance. If you go into the Calibration menu, you may see the menu as shown in the following picture.
Start LED Test
->Press Enter
- Test End -
[ Ok ! Press Mode Key ]
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Fig 40) TRIP TEST End Menu
②. Alarm TEST Menu
This menu allows you to test Alarm connection points. A confirmation menu
asking whether to start Alarm test will pop up as shown below. If you hit <Enter>
key, all Alarm connection points will be outputted as ON. When the Alarm test is
completed, the completion screen will be displayed. You can move back to its
higher menu by striking <Mode> key.
Fig 41) ALARM TEST Starting Menu
Fig 42) ALARM TEST End Menu
- Test End -
[ Ok ! Press Mode Key ]
Start Alm Test
->Press Enter
- Test End -
[ Ok ! Press Mode Key ]
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3. Install and Operation 3.1. Front Panel Layout
Fig 1) Front Panel Layout
Display Panel
LCD Display
20 Char. X 4 Lines
RUN LED
Communication
LED
Pickup LED
Fault LED
Fault RESET
User Interface
Terminal Port
(RS232C)
Key Pad
View measuring data
Setup parameter
View Event and diagnosis
information
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3.2. Terminal Map (view)
The following picture shows the back view of PROMET-U terminals.
As the electric current input terminal is equipped with CT protection, even if
PROMET-U is outputted, CT’s will be protected from the power system.
A19, A20 and FG terminals are internally connected and must be linked to Frame
Ground of the switchboard.
Fig 2) PROMET-U Terminal View
IO TB
A01 Trip 1 Trip 2 A02
A03 DO 1 Trip
ComA04
AI TB
A05 DO 2 DO 3 A06 B01 Ia Ia' B02
A07 DO 4 DO 5 A08 B03 Ib Ib' B04
A09 DO 6 DO
COMA10 B05 Ic Ic' B06
A11 DI 1 DI 2 A12 B07 In In' B08
A13 DI
COMA14 B09 B10
A15 PWR+ 485+ A16 B11 B12
A17 PWR- 485- A18
A19 FG SG A20
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5.3.7. TEST Menu
If you select [Main Menu] [6. Test], the Test screen will pop up. It is the menu for
test operation after installation. It also allows you to check if TRIP or Alarm points
are properly connected and check if foreside LED is in normal state.
Its relevant menu items are as follows;
Fig 38) TEST Menu
①. TRIP TEST Menu
This menu allows you to test TRIP connection points. A confirmation menu asking
whether to start trip test will pop up as shown below. If you hit <Enter> key, all
Trip connection points will be outputted as ON. When the Trip Test is completed,
the completion screen will be displayed. You can move back to its higher menu by
striking <Mode> key.
Fig 39) TRIP TEST Starting Menu
[ Device Test Menu ] 1.Trip 2.Alarm 3.LED
Start Trip Test ->Press Enter
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Fig 35) Diagnostic Information Display Menu(case : Normal)
Fig 36) Diagnostic Information Display Menu(case : Failure)
5.3.6. Time Setup Menu
If you select [Main Menu] [5. Time Setting], the time confirmation and setup
screen will pop up as follows.
Fig 37) Time setting menu
<Now Time> indicates present time and it constantly updates changing time.
<Edit Time> shows the time of moving into the Time Menu and the cursor blinks on
year field.
To define time, you shall adjust year by using <Up> <Down> key and then hit
<Enter> key to enable the cursor to move to the month field. Using the same
method, you can adjust day/time/minute/second one by one.
[PROMET-U Diagnosis] Diagnosis OK
[PROMET-U Diagnosis] WATCHDOG. FAIL SETTING... FAIL
Now : 2004/02/27 Time :17:46:24 Edit : 2004/02/27 Time :17:46:24
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3.3. Connection View
If you connect terminals in accordance with their relevant numbers as shown in 3.2,
the result will look like the following picture. Electric current input will be linked to A,
B, C phases using 3 CT, and N phase will be connected using the sum of the three
phases. If connection is done based on ZCT, electric current input will be linked to
B07 and B08 of ZCT terminal unlike the picture and remaining B02, B04 and B06
terminals of A, B and C phases will be connected to CT L terminals of A, B and C
Phases.
AC/DC 110-220V free voltage can be connected to power input terminal. Frame
ground of power can be connected to A19 of PROMET-U. Trip coil will be
connected to A01 and A04; +power is to A04 and –power is to A01. Diagnosis
connection point is a B contact which will be connected to A03 and A10.
Fig 3) PROMET-U Connection View
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3.4. Dimensional and Panel Cutout size
3.4.1. Front View
Fig 4) PROMET-U Front View
3.4.2. Side View
Fig 5) PROMET-U Side View
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as 1. The picture above shows fault count is 31.
③. Fault Type
It shows the type of tripped element of Relay. In case of multiple faults, it can
display up to 4 trip types. The picture above shows it is the TRIP due to OCR
time delay.
④. Fault Phase
It shows fault phase. The picture above shows related fault phases are A, B
and C phases.
⑤. Fault Current
It indicates the value of fault current at the moment when fault took place on
the whole phases measured by PROMET-U. The picture above shows fault
current on A, B, C and N phases.
⑥. Movement of Fault Information
You can move to next or previous fault by using the Prev/Next button in the last
line on the second page of the picture.
For moving to a different event, if you press the <Enter> key, the cursor will
blink on Prev and if you press <UP><Down> key again, Prev/Next will blink
alternately. At that moment, if you hit <Enter> when the cursor is on the
location you desire, you can move to the fault information you want to get.
5.3.5. Diagnostic Information Display Menu
This menu allows you to check diagnostic information. In order to use this menu,
you must select [Main Menu] [4. DIAGNOSIS].
If diagnosis is normal, it displays the following screen and if diagnosis identifies
faults, it will display diagnosis fault information up to 3.
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5.3.4. Fault Information Display Menu
This menu allows you to check fault occurrence information of PROMET-U. To use
this menu, move into [main menu] [3. FAULT INFO]. It can save up to 32 events.
Fault information can be inquired in the order of fault occurrence sequence (from
the latest to the old). The fault information display menu shows fault ID, fault
occurrence count, fault type, fault phase, fault currency, fault occurred time, etc.
In addition, you can move to a different page as it uses page concept by using
<Up> <Down> key as shown in the below picture.
Fig 33) First page of Fault information Display Menu
Fig 34) Second page of Fault Information Display Menu
①. Fault ID
It shows the serial number of the latest fault information stored. It can display
fault event from 1 to 32. The picture above shows the fault is the fourth event in
the latest fault sequence.
②. Fault Count
It shows fault count after installing Relay. It can display up to 9,999. If you
delete fault information, the fault occurrence count will be automatically cleared
[FAULT 4] Count = 31OCR> [I=ABC ] Ia= 4.02A Ib= 4.01A
Ic= 4.02A In= 4.01A
I2= 0.00A
-> Prev / Next
Fault ID Fault Count
Fault Type
Fault Phase
Fault Current
Fault Current
Move Fault
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3.4.3. Top View
Fig 6) PROMET-U Top View
3.4.4. Rear View
Fig 7) PROMET-U Rear View
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3.4.5. Panel Cut out
Fig 8) Panel Cut out
4-∅7
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④. Communication Address Setup
Fig 31) Communication Address Setup Menu
This menu allows you to define communication address of RS458 to be aligned
with its higher level system.
When the cursor is blinking, you can define its communication address by using
<Up> <Down> key. After the setup, you can save the defined value once in RAM
and get out of the setup item by striking <Enter> key.
⑤. Setup Update
Fig 32) Setup Update
This menu allows you to save the setup values modified in the setup items into
the backup memory. If you just move to a higher menu without updating the
values, the changed values will not be saved.
# Comm Addr Set #
Addr : 2
( 1 – 254 )
[ Update Setting ]
->Press Enter
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②. NCT Ratio Setup
Fig 29) NCT Ratio Setup Menu
This menu is to define a NCT ratio for primary and second of neutral current that
is used to display primary currents in the measuring mode.
When the cursor is blinking, you can define the primary current of CT ratio by
using <Up><Down> key. After the setup, you can save the defined value once in
RAM and get out of the setup item by pressing <Enter> key.
③. Communication Speed Setup
Fig 30) Communication Speed Setup Menu
This menu allows you to define communication speed of RS458 to be aligned
with its higher level system. Its front communication port is fixed at 9600bps.
You can select 9600 or 19200 bps as its communication speed depending on its
higher level system requirements.
When the cursor is blinking, you can define communication speed by using <Up>
<Down> key. After the setup, you can save the defined value once in RAM and
get out of the setup item by striking <Enter> key.
# Baud Rate Set #
Baud : 19200bps
(9600 – 19200 bps)
# NCT Ratio #
Ratio : 50/5A
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3.5. Communication Circuit Connection
For the connection to its higher supervisory control system, it provides insulated
RS485 Half Duplex communication method. This communication method allows
multi-drop connections for maximum 32EA and provides communication distance
up to 1 km.
It is recommended to link the vertical section of RS485 line to 120 ohm and 0.01uF
capacitor as shown in the following picture. Even if it is difficult to link it to capacitor,
it must be linked to 120 ohm (vertical impedance).
PROMET-U is equipped with various standard protocols in order to provide the
communication solution that allows communication with any supervisory systems.
Thanks to such a feature, users don’t have to install a separate protocol switcher
according to system protocol changes thereby allowing them to save time and cost
for system installation.
The protocols loaded on PROMET-U are as follows.
- DNP3.0
- ModBus
- IEC60870-5-103
- Lonworks
Fig 9) PROMET-U Communication Connection
PROMET-U
485
+(A16) -(A18)
PROMET-U
485
+(A16) -(A18)
Terminal
Impedance
(120Ω+0.01uF)
Supervisory &
Control
System
MAX 32EA
Max Distance: 1.2km
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4. Functions
4.1. Protection Relay Function
1) Over Current Protection
PROMET-U performs relay functions by using 3 inverse time characteristic curves for
electric current and 1 definite time characteristic curve in compliance with IEC-60255
standards.
The following is a formula of inverse time characteristic curve for current.
The following is a formula of definite time curve for current.
101m
α
TCIβT ×⎟
⎠⎞
⎜⎝⎛ −
−=
0 80 2 Extremely Inverse
0 13.51Very Inverse
0 0.140.02Normal Inverse
C α β
102 mTT ×=
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⑪. Update Setup Item
Fig 27) Update Setup Item Menu
This menu allows you to save the setup value modified in the setup items into
backup memory. If you just move to a higher menu without updating defined
values, the changed setup values will not be stored.
5.3.3. SYSTEM related Setup Menu
This menu allows you to define system and communication related PROMET-U
variables.
Currently, there are setup items for CT ratio, communication speed and
communication address.
①. CT Ratio Setup
Fig 28) CT Ratio Setup Menu
This menu is to define a CT ratio for primary and second of phase current that is
used to display primary currents in the measuring mode.
When the cursor is blinking, you can define the primary current of CT ratio by
using <Up><Down> key. After the setup, you can save the defined value once in
RAM and get out of the setup item by pressing <Enter> key.
[ Update Setting ]
->Press Enter
# CT Ratio #
Ratio : 100/5A
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⑨. OCGR I> TC Curve Setup
Fig 25) OCGR I> Curve setup menu
OCGR time delay TC curve can be setup as DT, NI, EI, VI and LI.
When the cursor blinks, you can define its curve by using <Up><Down> key. After
completing the setup, you can save the defined value once in RAM and get out of
the setup item by pressing <Enter> key.
⑩. OCGR I> Tm(Time Multiply) Setup
Fig 26) OCGR I> Tm setup menu
The time multiply for OCGR time delay can be defined in the range from 0.1~50.
Sec. and adjusted by 0.1 sec step. In the curve setup, if DT (definite time) is
selected, the unit will be Sec. However, if inverse definite time curve is selected,
sec will not be used because of time multiply.
When the cursor blinks, you can define the time multiply for OCGR time delay by
using <Up><Down> key. After completing the setup, you can save the defined
value once in RAM and get out of the setup item by pressing <Enter> key.
# OCGR I> Curve #
I> : DT
# OCGR I> Tm #
I> : 1.0S
(0.1-50Sec : 0.1Sec)
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① Normal Inverse Characteristic
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② Very Inverse Characteristic
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value once in RAM and get out of the setup item by pressing <Enter> key.
⑦. OCGR I>> Tm(Time Multiply) Setup
Fig 23) OCGR I>> Tm(Time Multiply) setup menu
The time multiply for OCGR instantaneous time can be defined in the range from
0.04 to 120.0 Sec, and adjusted by 0.01sec step. The unit will be Sec.
When the cursor blinks, you can define time multiply for OCGR instantaneous
time by using <Up> <Down> key. After completing the setup, you can save the
defined value once in RAM and get out of the setup item by pressing <Enter> key.
⑧. OCGR I> Pickup Setup
Fig 24) OCGR I> Pickup setup menu
OCGR time delay pickup value can be defined in the range of “OFF, 0.1~20.0 [A]”
and adjusted by 0.1[A] step. If OFF is selected, the time delay pickup function will
be blocked.
When the cursor blinks, you can define OCGR time delay pickup value by
using <UP> or <Down> key. After completing the setup, you can save the
defined value in RAM and get out of the setup item by pressing <Enter> key.
# OCGR I> Pickup #
I> : 0.1A
(OFF, 0.1~20A : 0.1A)
# OCGR I>> Tm #
I>> : 1.0S
(0.04-120Sec : 0.01Sec)
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⑤. OCR I> Tm(Time Multiply) Setup
Fig 21) OCR I> Tm(Time Multiply) setup menu
The time multiply for OCR time delay can be defined in the range from 0.1 to
50.0 Sec, and adjusted by 0.1sec step. In the Curve setup, if DT (definite
time) is selected, the unit will be Sec. However, if inverse time curve is
selected, Sec (second) will not be used because of Time Multiply.
When the cursor blinks, you can define time multiply for OCR time delay by using
<Up> <Down> key. After completing the setup, you can save the defined value
once in RAM and get out of the setup item by pressing <Enter> key.
⑥. OCGR I>> Pickup Setup
Fig 22) OCGR I>> Pickup setup menu
OCGR instantaneous Pickup value can be defined in the range of “OFF, 0.5~80.0
[A]” and adjusted by 0.1 [A] step. If OFF is selected, the instantaneous function
will be blocked.
When the cursor blinks, you can define OCGR instantaneous pickup value by
using <Up><Down> key. After completing the setup, you can save the defined
# OCR I> Tm #
I> : 1.0S
(0.1-50Sec : 0.1Sec)
# OCGR I>> Pickup #
I>> : 2A
(OFF, 0.5~80A : 0.1A)
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③ Extremely Inverse Characteristic
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④ Definite Time Characteristic
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③. OCR l> Pickup Setup
Fig 19) OCR I> Pickup setup menu
OCR time delay pickup value can be defined in the range of “OFF, 0.5 ~ 25.0 [A]”
and adjusted by 0.1 [A] step. If OFF is selected, the delay function will be blocked.
When the cursor blinks, you can define OCR time delay pickup value using <Up>
<Down> key. After the setup, you can save the defined values once in RAM and
get out of the setup item by pressing <Enter> key.
④. OCR l> TC Curve Setup
Fig 20) OCR I> TC Curve setup menu
As for setup of OCR time delay curve, you can select DT, NI, EI, VI or LI.
When the cursor blinks, you can select a curve by using <Up><Down> key.
After finishing the setup, you can save the defined value once in RAM and
get out of the setup item by pressing <Enter> key.
# OCR I> Pickup #
I> : 0.6A
(OFF, 0.5~25A : 0.1A)
# OCR I> Curve #
I> : DT
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①. OCR l >> Pickup Setup
Fig 17) OCR I>> Pickup setup menu
OCR instantaneous pickup value can be defined in the range of “OFF, 1 ~ 120.0
[A] “and adjusted by 1.0 [A] step. If OFF is selected, the instantaneous function
will be blocked.
When the cursor blinks, you can define OCR instantaneous pickup value using
<Up><Down> key. After completing the setup, you can save the defined values
once in RAM and get out of the setup item by pressing <Enter> key.
②. OCR I>> Tm(Time Multiply) Setup
Fig 18) OCR I>> Tm(Time Multiply) setup menu
The time multiply for OCR instantaneous time can be defined in the range from
0.04 to 120.0 Sec, and adjusted by 0.01sec step. The unit will be Sec.
When the cursor blinks, you can define time multiply for OCR instantaneous time
by using <Up> <Down> key. After completing the setup, you can save the defined
value once in RAM and get out of the setup item by pressing <Enter> key.
# OCR I>> Pickup #
I>> : 10A
(OFF, 1~120A : 1A)
# OCR I>> Tm #
I>> : 1.0S
(0.04-120Sec : 0.01Sec)
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Setting range and characteristic of relay protection functions.
Pickup Set Operation Time Set
Relay
Function
Relay
Type Setting
Range Step
Setting
Range Step
characteristic
Instant
Time
1.0 - 120.0 [A]
,Block 1A 40ms~120Sec 0.01Sec Instant
0.1 - 50.0 0.1
Normal Inverse
Very Inverse
Extremely Inverse
OCR
(50/51) Delay
Time
0.5 - 25 [A]
,Block 0.1A
0.1–50.0Sec 0.1Sec Definite Time
Instant
Time
0.5 - 80.0 [A]
,Block 0.1A 40ms~120Sec 0.01Sec Instant
0.1 - 50.0 0.1
Normal Inverse
Very Inverse
Extremely Inverse
OCGR
(50/51N) Delay
Time
0.1 - 20 [A]
,Block 0.1A
0.1–50.0Sec 0.1Sec Definite Time
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4.2. Recording function
4.2.1. Operation recording function
It records and stores PROMET-U operation related information up to 64 events in
the FRAM (Ferroelectric Random Access Memory).
It enables you to trace events because they are recorded in the order of event
occurrence time (SOE: Sequence Of Event). Items and details of information to be
recorded in Operation Record are as follows.
4.2.2. Fault information recording function
PROMET-U records and stores operation fault related information up to 32 events
in its FRAM as well as provides line protection as part of its protection relay function.
The details of records are as follows.
- Fault occurrence time (year/month/day/time/minute/second)
- Fault ID
- Fault occurred phase (A/B/C/N)
- Action phases of Relay
- Size of fault current by phase
Saved Items Saved Data Pickup Event
Fault Time Event Diagnosis Event
Setting Change Event Restart Event
Event Time (Year/Month/Date/Hour/Minute/Sec)
Event ID Event Name
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5.3.2. Feeder Protection Related Setup Menu This section provides explanations on setup menu of OCR/OCGR (50/51N), over-current protection element of relay. Menu selection and movement are the same as the main menu.. For the protection of setup values, password must be selected and used. You can select password in the range from 0 to 99 using Up/Down key and the default
password value is defined as [99].
Fig 15) Password Input Menu
After completing setup of each item as indicated in the picture below, you must select [11.Update Setting] item and save the defined values so that those modified setup values can be saved and stored in the actual backup memory.
Fig 16) Menu related to feeder relay setup
[Feeder Ry Setting]
->1.OCR I>> Pickup
2.OCR I>> Tm
3.OCR I> Pickup
4.OCR I> Curve
5.OCR I> Tm
6.OCGR I>> Pickup
7.OCGR I>> Tm
8.OCGR I> Pickup
9.OCGR I>Curve
10.OCGR I> Tm
11.Update Setting
[PROMET-U PassWord]
[00]
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②. How to move and select each item in the main menu
The current item in the main menu is indicated by rightward arrow [ ] as
shown in the following picture. For moving to a different item, you shall use
[Up/Down] key. For the selection item, you have to press [Enter]key.
Fig 13) select each items in the main menu
③. Move to a upper menu
If you want to move to a upper menu, you shall press [Mode] key.
Fig 14) Move to a upper menu
[PROMET TOP MENU] ->1.FEEDER RY SETTING
2.SYSTEM SETTING 3.FAULT INFO
4.DIAGNOSIS 5.TIME SETTING 6.TEST 7.CALIBRATION 8.CLEAR INFO
Up
Down
[PROMET-U-I V1.00] Ia= 5.01A Ib= 5.00A Ic= 5.01A In= 5.02A
Mode
[PROMET TOP MENU] ->1.FEEDER RY SETTING
2.SYSTEM SETTING 3.FAULT INFO
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4.2.3. Fault wave recording function
PROMET-U records and stores before and after fault instantaneous waves of 60
cycle for 2 latest fault events.
The wave information will allow you to conduct wave and cause/effect analysis in
relation to line fault.
Details of Fault waves to be stored are as follows;
- Fault occurrence time
-Sample value of each phase current
-
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5. Operation and Setup functions
5.1. Operation status LED
The LED that indicates overall operation status of Relay has four components such as
action status LED, communication LED, Pickup LED and Fault LED as shown in the
following picture.
For details of each component;
1) RUN/FAIL LED: It displays the action status of PROMET-U. Based on its self-
diagnosis of Relay, if the operation is normal, Green light LED will be turned on. If
the self-diagnosis identifies faults or problems, then the green LED will be turned
off to enable you to check items diagnosed by Relay through LCD diagnostic
information menu.
2) TX/RX LED: when communication option is selected for RS458 communication
with parent (higher-level) system, this LED indicates communication status
(receive/send). In sending, green light LED will be displayed while in receiving
red LED is turned on. The LED will be turned off if there is no communication.
3) PICK-UP LED: If current in excess of the level defined in the Relay is permitted,
yellow light on the Pickup LED will blink. If the value of current goes down below
the defined level, the LED will be turned off.
4) FAULT LED: Fault is maintained when current in excess of the level defined is
allowed. When it reaches the defined operation time, trip point will be outputted
and the Fault LED will be turned on. After fixing and restoring it from fault, this
LED will be turned off when the user hits Fault Reset key.
Fig 10) Local LED indicators
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5.2. Measuring display function
After starting PROMET-U, the LCD window of the front panel will display values of
electric current for A, B, C and N phases.
The first line on the measuring display window has “PROMET-U-I” which indicates
it’s overcurrent protection relay and “V1. 00” which indicates its program version is
1.00.
The second and third lines indicate current of each phase.
Fig 11) Local LCD display for measuring data
5.3. Main menu layout
5.3.1. How to operate measuring display LCD and main menu
As for how to move to calibration display LCD and operate main menu, follow
instructions as shown below.
①. Measuring display window move to main menu
Move to main menu by press [Enter] key on the measuring display window.
Fig 12) Measuring display window move to main menu
[PROMET-U-I V1.00] Ia= 5.01A Ib= 5.00A Ic= 5.01A In= 5.02A
[PROMET-U-I V1.00] Ia= 5.01A Ib= 5.00A Ic= 5.01A In= 5.02A
Enter
[PROMET TOP MENU] ->1.FEEDER RY SETTING
2.SYSTEM SETTING 3.FAULT INFO