CREATED ON: June 21, 2016
Keys and Operation
RU Mode
1. On power application, relay will be in NC condition for
approximately 10sec.
2. During healthy condition, all the voltage parameters shall be
displayed with instantaneous values. Relay and relay ED will
be in ON or OFF condition depending on Rly ’y’ or Rly ‘n’ setting.
3. During fault condition, type of fault shall be displayed with
Relay OFF or ON Status depending on Rly ’y’ or Rly ‘n’ setting.
Auto mode
4. Once the fault is recovered, unit automatically comes back
to parameter display mode as mentioned in point – 2.
Manual mode
5. Once the fault is recovered, manual key to be pressed to
bring back display mode as mentioned in point – 2.
6. If faults are rectified before set trip delay timings of relay,
display will continue to show fault status. Relay status remain
unaltered. Press Manual key to show the parameter display.
Press ME U/E TER key for 3Seconds to HOLD/SCROLL display.
When fault occurs unit dis lay’s the following:
Parameters Top
display
Bottom
display
OVER VO TAGE Err OUO
UNDER VO TAGE Err UUO
OVER CURRENT Err OCrt
UNDER CURRENT Err UCrt
OVER FREQUENCY Err O-HZ
UNDER FREQUENCY Err U-HZ
EARTH EAKAGE Err E r
PHASE UNBA ANCE Phs UbA
PHASE REVERSE Phs rEU
R PHASE FAI FAI P-r
Y PHASE FAI FAI P-y
B PHASE FAI FAI P-b
ME U/E TER/HOLD/SCROLL Key
RU Mode : Used to select scroll/hold the
parameters.
PROGRAM MODE : Used to enter into program
mode.
: used to select next parameters.
I C Key
PROGRAM Mode : Used to increase the values.
DEC Key
PROGRAM Mode : Used to decrease the values.
MA UAL/ESC Key
RU Mode : When fault recovery happens this
key shall be used to oad ON/OFF manually.
PROGRAM Mode: It is used to view the previous
parameters.
Phase Unbalance Condition
To set unbalance condition for 20%.
Set 20 in unit (PUb =20 as shown in the table).
If RY=350V, YB=450V, BY=319V in the load.
Fault is created in the unit, upper displays shows “Phs” and
lower shows “UbA ”.
Calculations are as follows
Set nVO =415V, PUb =20% in the unit.
Vry=350V, Vyb=450V, Vbr=319V, Vavg= 373V
Vry -Vavg=23V, Vyb -Vavg=77V, Vb-Vavg=54V
Phase unbalance= (Maximum deviation / Vavg) * 100
= (77/373)*100= 20 %
PROGRAM Mode
To enter program mode press INC & DEC key simultaneously for 4sec.
Programming
Parameters Range
Factory
setting
1 “nUO ” Nominal voltages: 415V 415
2 “OUO ” Over Voltage. Range: 5 to 100V 030
3 “UUO ” Under voltage. Range: 5 to 100V 030
4 “CT-P” CT Primary. Range: 5 to 2500A 005
5 “nCrt” Nominal Current. Range: 0.5-500A 005.0
6 “OCrt” Over Current. Range: 105-800% 120
7 “UCrt” Under Current. Range: 20-95% 20
8 “ PUbl” Phase Unbalance. Range: P 1-20% 20
9 “O-Hz” Over frequency. Range: 2 to 5Hz
05
10 “U-Hz” Under frequency. Range: 2 to 5Hz
05
11 “E r” Earth leakage current. Range: 1 to 8A
1
12 “IrdY” Inrush delay. Range: 1-60sec 01
13 “ tdOU” Trip delay Over Voltage. Range: 1- 250sec 005
14 “ tdUU” Trip delay Under Voltage. Range: 1 - 250sec 005
15 “ tdOC” Trip delay Over Current. Range: 1 - 250sec 005
16 “ tdUC” Trip delay Under Current. Range: 1 - 250sec 005
17 “tdUb” Trip delay Unbalance. Range: 1 – 250sec 005
18 bYPS “OU Y/n” Bypass Over Voltage n
19 bYPS “UU Y/n” Bypass Under Voltage n
20 bYPS “OCt Y/n” Bypass Over Current n
21 bYPS “UCt Y/n” Bypass Under Current n
22 bYPS “UB Y/n” Bypass Phase Unbalance n
23 bYPS “OHz Y/n” Bypass Over Frequency n
24 bYPS “UHz Y/n” Bypass Under Frequency n
25
Cnt
r Y ‘n’ Relay & Status ED OFF in
healthy condition y
r Y ‘Y’ Relay & Status ED ON in
healthy condition
26 “Auto”
rst ‘Y’ Auto reset enable “Y”
rst ‘n’
Auto reset disable
(Manual mode)
“n”
Technical Specification
Disposition
Once the product life is over, you may send back the
unit to EAP for disposition
Contact
Electronic Automation Pvt. td
#20, KHB Industrial Area
Yelahanka, Bangalore -560064
Ph: +91-80-28567561/2, /42802345
www.eaplindia.com
Function Phase Unbalance, Phase
Reversal, Phase Failure, Under
and Over Voltage, Under and
Over Current, Under and Over
Frequency, Earth eakage
Monitor and Control.
System Input
Input Voltage 415V AC(3Ph-4W)
Input Current Current input (AR,AY,AB) Ib=5A
Input Frequency 50 Hz, ± 10%
Control output 1c/o rated for 10A @
250VAC/28VDC resistive load
Power Consumption 5VA/ 1W
Accuracy
Voltage ± 4V of display value
Current ± 5% of Ib ± 1 digit (Ib = 5A)
Frequency ± 2% of FS ± 1 digit
Trip Time ±1% of set delay ± 2 sec
Earth leakage current ±500mA of setting accuracy.
General
Minimum sensing current 0.5A
Maximum sensing current 5A(Above 5A> Ext.CT can be
used)
Earth leakage Trip time delay 5 sec Earth leakage
Phase Failure trip time delay
Phase reverse trip time delay
Frequency trip time delay
Recovery Time 2 sec Min
Power On Delay
Mode of Operation Auto/ Manual
Core Balance Current
Toroidal core
CBCT Size Internal Diameter
Storage : -25° C to +80° C
Humidity MAX 85% RH @ 40° C
OD RE NN 610002 REV 02/21-06-16
