CSDPR-V2-300

current Protection Relay

Q RG
Quick Reference Guide

This QRG will help you step-by-step installation, operation and programming
procedure. Please go through all the instructions carefully prior to implementing.
R37QRG000132

C&S Electric Limited

Disposal
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the products/components must be taken to applicable collection points. Such
disposal activities must comply with all local laws, guidelines and
environmental specifications of the country in which the disposal is done.

Our products and batteries must not be disposed of as household waste. For disposing
batteries it is necessary to observe the local national/international directives.

According to national legislation, penalties may be charged for incorrect disposal of

such waste.

By disposing of these products correctly you will help to save valuable resources and prevent
any potential negative effects on human health and the environment.
Introduction
In the family of protection relay, CSDPR-V2-300 is numeric multi powered Over-current
relay specially designed for ring main units & feeder protection. It combines the following
functions in one unit:
u Over current, Short Circuit, Earth Fault & Earth Fault High set protection
u DEFT & Inverse characteristics for O/C and E/F individually selected for
phase & earth fault
u Wide operating ranges of the auxiliary supply voltage (AC/DC)
u Remote trip *
u Switch on to fault (SOTF) protection
u Remote protection block input DI*
u Potential pulse output for direct triggering the circuit breaker coil
u Potential free alarm contacts available
u Unbalance/ Asymmetric protection
u Circuit breaker failure protection
u Harmonic blocking (via DFT Filter) to avoid any unwanted tripping
u Two sets of setting groups
u Last 5 Fault and 10 Event record with Time stamp
u RS-485 Modbus
u USB port for PC / Laptop interface

Design
Relay will get energized from any of the following available sources:
u Aux. supply
u CT current
u Internal battery
u USB port
Relay will operate its trip contacts only when CT current is present or Aux. supply is available,
with other power sources, only the relay display/HMI will be available.
In the absence of Aux supply/Battery voltage/USB, LCD will get energized, if CT current is
10% of rated current or above. Trip coil will be operated, if CT current in single phase is at
least 20% of rated current or 15% of rated current in three phases. Relay is not powered from
Earth CT, so for earth fault protection, phase current is mandatory.

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Front Interface of the Relay

CSDPR-
V2

Alpha Numeric LCD

R M U P R O T E C T I O N RE LAY

See Description B
L1 L2 L3 E PICKUP TRIP TCS CBFP

MHT Ready /
MHT Ready LED
See Description A ON READY/HLTHY

Up Scroll /
Decrement Key ENTER
Down Scroll /
Increment Key

Enter Key
RESET

U S B port for P C/ Fault Reset Key Battery Cover

Laptop communication (Manual Reset on (Remove battery cover
pressing for 2 sec) to change the appropriate
battery)

Description A : This key is used to ON the LCD when available source is Aux Supply, CT current or USB port)
Description B : This key is used to ON the LCD when available source is only Battery.

L1 L2 L3 E PICKUP TRIP TCS* CBFP

CBFP external breaker failure indicator

Trip circuit supervision
Trip Status of Relay
Common pickup for fault
Earth fault for pickup & Trip indicator
L3 phase for pickup & Trip indicator
L2 phase for pickup & Trip indicator
L1 phase for pickup & Trip indicator

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Conn. Diagram (TCS Model) * In TCS model : Remote Trip & Remote Block DI will not be available.

L1 Aux-P Aux-N
L2 A13 A14
L3
A1 COM
DO-4
A2 NO
Latch
Aux Supply A3 COM
P1 S1 E1 DO-3
A4 NO
IL1
E2 A5
P2 S2 COM
DO-2
A6 NO Operates with
P1 S1 E3 A7 COM only Aux supply
IL2 DO-1 A8
E4 NO
P2 S2
DI-2
* CB Open A9
P1 S1 E5 A10 DI-(Comm)
* CB Close
IL3 A11 DI-1
E6
P2 S2
TF+ B1
Flag Indicator
E7 TF- B2
Ie
E8 TC- B3
Trip Coil
TC+ B4
E9
A
E10 B8
B7 B RS 485
B6

In TCS model : Remote Trip &

Conn. Diagram (Standard Model without TCS) Remote Block DI will not be available.

L1 Aux-P Aux-N
L2 A13 A14
L3
A1 COM
DO-4
A2 NO
Latch
Aux Supply A3 COM
P1 S1 E1 DO-3
A4 NO
IL1
E2 A5
P2 S2 COM
DO-2
A6 NO Operates with
P1 S1 E3 A7 COM only Aux supply
IL2 DO-1 A8
E4 NO
P2 S2
* Remote Block A9 DI-2
P1 S1 E5 A10 DI-(Comm)
IL3 * Remote Trip A11 DI-1
E6
P2 S2
TF+ B1
Flag Indicator
E7 TF- B2
Ie
E8 TC- B3
Trip Coil
TC+ B4
E9
A
E10 B8
B7 B RS 485
B6

NOTE: While doing the HV test, don`t connect the MHT terminal (C4-C5),
as internal capacitor bank could be in charged state & it can harm the circuitry.

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Dimension Details (All the dim. are in mm) Side View
Front View
128.0
110.0 118.0

158.0
167.8
158.0
167.8

Specification Table of the Relay

Function ANSI CSDPR-V2-300

3 Phase Over current protection 51 ü
3 Phase Instantaneous protection 50 ü
Earth time Over Current 51N ü
Earth time Instantaneous Over Current 50N ü
Circuit Breaker Failure protection 50BF ü
Switch onto fault SOTF ü
Trip circuit supervision * 74TC ü
Fault Record – 05
Event Record – 10
LCD Display – 16x2 Alpha Numeric
Digital Input *
Remote Trip* / CB Close – ü
Remote Block* / CB Open – ü
Digital Output – ü
Pulse Output – ü
Powered Nature – CT powered
Aux. powered
Front Communication – ü
Rear Communication (RS-485) – ü
Battery Backup – ü

* ordering based

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Back Terminal view (TCS model)

Back Terminal view (Standard model without TCS)

Remote Block (DI-2)

DI-Common

Remote Trip (DI-1)

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 Photograph shown here for have an idea only
Battery changing Procedure

Remove the Battery cover

by twisting it on the left side
as shown in the Left image.

Remove the Sticker placed

on Battery to start the unit
with Battery.

Replace the prescribed

1/2 AA size suitable battery
with the new one.

Close the Battery cover by

twisting it on the right side
as shown in the Left image.

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Technical Data

Rear (RS-485) Communication Setting

Parameter Display Setting Range

Slave Address SLV Add 1-32
Baud Rate BD Rate 9600/19200
Parity Parity NONE/EVEN/ODD

Front (USB) Communication

Front Port: CSE protocol with CSE LIVELINK on mini USB cable type A/A

General Data

Rated auxiliary Universal L: (18V - 60V DC)

voltage UH H: (85V - 260V AC /
110V to 300V DC)
Rated supply for Normal voltage U N L: (18V - 60V DC)
DI input H: (85V - 260V AC /
110V to 300V DC)
Power consumption
of Aux supply Quiescent approx. 3W Operating approx. 6W
Dropout pickup ratio > 95 %

Measuring Input
Rated data Rated current I N (1A)
Frequency F N: 50/60 Hz
Measurement Measurement of Phase / Earth current starts from 5%

Phase / Earth VA Burden : (2.5VA @ Rated Current)

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Thermal Withstand Capacity
Thermal withstand Continuously 2.5A
capacity 10s 15A
for In=1A 1s 80A

Accuracy

Tripping times DMT : + 5% of the setting value or +40 mSec

with pre-fault IDMT : Accuracy as per IEC-255-3 (2xIs to 20xIs)
For VINV / NINV/RI : + 5% or + 40 mSec
For LINV/EINV/HV-Fuse : + 7.5% or + 60 mSec
Pickup accuracy +5% or +10mA
Boot-up time in < 100 mSec; (Event recorder enabled : 20mSec extra)
self powered mode

Output Contact (Relay Specs)

Number of relays 4
DO contacts (DO: 1, 2) DO1 & DO2 are user programmable
configurable & available for I>, I>>, le> & Ie>>, CBFP,
only with Auxiliary supply Unbalance (U0>), Remote DI, all faults
Relay contacts: 3, 4 Latch type of DO common for all
(available in all models) protection trip
Max. breaking capacity 1250VA / 150W resistive
500VA / 90W inductive
Max. breaking voltage 400V AC, 125 VDC
Max. continuous AC current 5A

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Inverse Graph Representation
Inverse Time characteristics

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 How to do Settings
Two group of Protection Setting are available in CSDPR-V2 relay. User can select
One Group as Active Group. For setting below are simple steps for configuration:
Default Password for settings : “ 4-Times Enter Key”
Default First Screen
MAIN DEFAULT SCREEN PAGE:
The very first Screen of the HMI shows the Measured Primary Current for all the
phases based on CT ratio.
L1 : 0000.0 A
L2 : 0000.0 A

<Menu 1>
(EDIT/VIEW PARAMETERS)
# EDIT/VIEW #
Press Key <GROUP SELECT > : For Active Group Selection of Parameter
<PROTECTION > : Protection Related Parameter Menu
<COLDLOAD PRT > : Cold Load Protection Menu
<FAULT RECORD > : Fault Record Menu
<EVENT RECORD > : Event Record Menu
<DO ASSGNMNT > : Programmable Relay Assignment Menu
By using <DO RESET > : Programmable Relay Reset Menu
the <TRIP TYPE > : Trip Type
scroll keys <RST TRIP CNT > : Reset Trip count Menu
<DISPLAY OPTN > : Display Options Menu
select the
<BATTRY STATS > : Battery Status Menu
desired
<TRIP TEST > : Output Trip Test Menu
menu and
<COMMN SETTNG > : Communication RS485 Menu
press <LOAD DEFAULT > : Load Default Menu
ENTER. <EDIT RTC > : Clock Setting Menu
<CHNGE PSWORD > : Password Change Menu
< FACTORY MODE > : Factory Setting Menu
* <RELAY VERSON > : Relay Version Menu
← BACK

Note : - * Menu Model Dependent FACTORY MODE Setting are not for the users.

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From Menu-1:
On selecting GROUP SELECT by pressing ENTER
key, user can change the active group by using # GROUP SELECT #
ENTER and then scroll key.
ACTIVE-GRP : GRP1
Press Enter and If the user selects the YES option ←BACK
then it will ask to enter the correct password or else to
go to the previous menu by selecting the other
options by pressing ENTER key.

From Menu-1:
# PROTECTION #
O n s e l e c t i n g CTRatio : 0001 : CT Ratio for primary current display
PROTECTION by
pressing ENTER key.
Frequency : 50Hz : Frequency characteristic
User can see the list of all PhaseCh : DEFT : Phase over-current trip characteristic
the protection setting EarthCh : DEFT : Earth over-current trip characteristic
parameter by using the
scroll keys. l> : 0.20xIn : Over-current Pickup
ti> : 0.01 : TMS Over-current Setting
Press ENTER to select t> : 0.1s : DEFT Trip Time
the desired Parameter &
use SCROLL keys to l>> : 0.5xIn : Short Circuit Protection
Edit the selected one. t>> : 0.03 : DEFT Trip timing for SC Protection
Ie> : 0.05xIn : Earth Over-current Pickup
If the user change any of
the setting, It is required tie> : 0.01 : Inverse Trip Time
to save the changes by te> : 0.05s : DEFT Trip Time
pressing ENTER key Ie>> : 0.01xIn : Earth High-set Pickup
and than selecting YES
option, after that entering te>> : 0.05 : DEFT Trip timing Earth High
the correct password to SOFTpk : DISABLE : SOTF pickup setting
save the setting or else Unbalnc : 5% : Unbalance
to go to the previous
menu by selecting the tUnblnc : 0.50s : Unbalance DEFT Trip Time
other options & by CBFP : YES : CBFP Supervision Time
pressing ENTER key. tCBFP : 0.15s : CBFP Supervision Time
td_TCS : 2.00s : TCS Trip Time
←BACK

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From Menu-1:
On selecting COLD LOAD PRT by pressing ENTER
key, User can see the list of all the parameter by using the #COLD-LOAD-SET#
scroll keys.
Press ENTER to select the desired Parameter & use ColdLdPrt : DISABLE
SCROLL keys to Edit the selected one. tCldLoad : 00.10s
If the user change any of the setting, It is required to save
←BACK
the changes by pressing ENTER key and than selecting
YES option, after that entering the correct password to
save the setting or else to go to the previous menu by
selecting the other options & by pressing ENTER key.

From Menu-1:
On selecting FAULT RECORD, by pressing ENTER # FAULT RECORD #
key, Fault no. screen will appears. By using ENTER & <FAULT NUMBER>
Scroll keys select the desired Fault no. for its details. To <ERASE FAULTS>
go to the previous menu press BACK key. ←BACK

From Menu-1:
On selecting EVENT RECORD, by pressing ENTER # EVENT RECORD #
key, Event no. screen will appears. By using ENTER & <SELECTION>
Scroll keys select the desired Event no. for its details. To <EVENT NUMBER>
go to the previous menu press BACK key. <ERASE EVENTS>
←BACK
From Menu-1:
On selecting DO ASSGNMNT by pressing ENTER key,
# DO ASSGNMNT #
User can see the list of all the parameter by using the
scroll keys. Press ENTER to select the desired
I> : DISABLED
Parameter & use SCROLL keys to Edit the selected I>> : DISABLED
one. If the user change any of the setting, It is required to Ie> : DISABLED
save the changes by pressing ENTER key and than Ie>> : DISABLED
selecting YES option, after that entering the correct Unbaln : DISABLED
password to save the setting or else to go to the previous CBFP : DISABLED
menu by selecting the other options & by pressing TCS : DISABLED
ENTER key. AllFlt : DISABLED
SOTF : DISABLED
←BACK

On selecting DO RESET by pressing ENTER key, User

can see the list of all the parameter by using the scroll # DO RESET MODE #
keys. Press ENTER to select the desired Parameter & DO 1 : AUTO
use SCROLL keys to Edit the selected one.If the user DO 2 : AUTO
change any of the setting, It is required to save the ←BACK
changes by pressing ENTER key and than selecting
YES option, after that entering the correct password to
save the setting or else to go to the previous menu by
selecting the other options & by pressing ENTER key.

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From Menu-1:
On selecting TRIP TYPE by pressing ENTER key, User
can see the list of parameter by using the scroll keys. # TRIP TYPE #
Press ENTER to select the desired Parameter & use TripO/P : TRIP-COIL
SCROLL keys to Edit the selected one. ←BACK

If the user change any of the setting, It is required to save

the changes by pressing ENTER key and than selecting
YES option, after that entering the correct password to
save the setting or else to go to the previous menu by
selecting the other options & by pressing ENTER key.

From Menu-1:
On selecting RST TRIP CNT by pressing ENTER key,
User can Reset the Trip count by selecting the YES Reset Count....?
option or else comes out from the menu by selecting the YES NO CANCEL
other option.

From Menu-1:
On selecting DISPLAY OPTN by pressing ENTER key, # DISPLAY-OPTION #
User can see the list of parameter by using the scroll MODE : AUTO OFF
keys. ←BACK
Press ENTER to select the desired Parameter & use
SCROLL keys to Edit the selected one.

If the user change any of the setting, It is required to save

the changes by pressing ENTER key and than selecting
YES option, after that entering the correct password to
save the setting or else to go to the previous menu by
selecting the other options & by pressing ENTER key.

From Menu-1:
# BATTERY STATUS #
On selecting BATTRY STATS by pressing ENTER BATTERY : OK
key, User can see the status of the Battery, whether it
←BACK
is OK or NOT.

From Menu-1:
On selecting TRIP TEST by pressing ENTER key, # TRIP TEST #
User can see the list of parameter by using the scroll
keys. LED/DO TEST
Press ENTER to select the desired Parameter & use BREAKER TEST
SCROLL keys to perform the test.
LATCH RESET
If the user selects any of the option it will ask to ←BACK
continue the Test, If the user selects the YES option
then Right/Left key are required to press to perform
the Test, else select other option and press enter to go
to the previous menu .

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From Menu-1:
On selecting COMMN SETTING by pressing ENTER
key, User can see the list of all the parameter by using the # COMMN SETNG #
scroll keys. SLAVE ADD : 01
Press ENTER to select the desired Parameter & use BAUDRATE : 9600
SCROLL keys to Edit the selected one.
PARITY : NONE
If the user change any of the setting, It is required to save ←BACK
the changes by pressing ENTER key and than selecting
YES option, after that entering the correct password to
save the setting or else to go to the previous menu by
selecting the other options & by pressing ENTER key.

From Menu-1:
LOAD DEFAULT
On selecting LOAD DEFAULT menu by pressing
ENTER key, User will ask to Enter the correct password.
Enter Passwrd
If the user enter the correct password, the default values
of the relays will restored.
Saving .........

From Menu-1:
On selecting EDIT RTC Menu, user can set the Date, # EDIT RTC #
Month Year Day, Hour, Minute, Second by using the HOUR : 11
S c r o l l k e y s .
MIN : 26
Press ENTER to select the desired Parameter & use
SCROLL keys to Edit the selected one. SEC : 59
DATE : 23
If the user change any of the setting, It is required to save MONTH : 08
the changes by pressing ENTER key and than selecting YEAR : 2019
YES option after that entering the correct password to
save the setting or else to go to the previous menu by ←BACK
selecting the other options & by pressing ENTER key.

From Menu-1:
Enter Passwrd
On selecting CHNGE PSWORD Menu by pressing the
ENTER key, user will ask to enter the password. If the
New PASSWORD
user entered the correct password the next screen will
ask to Enter the New Password after that re-enter the Re-PASSWORD
password for confirmation. If the password changed
successfully, it will flash password change message.
SUCCESSFUL .!
PASSWD CHGD
From RELAY VERSION MENU: CSDPR-V2-300-D
On selecting RELAY VERSION Menu, by pressing
Enter key, it will show the screen. -L/H-P-T
Ver:V1.0.00.02
User can see the relay information by using the scroll DN:220819
keys. To go to the previous menu press BACK key. ←BACK

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 Trouble Shooting Points

Problem Cause of Problem Remedy

Wrong measuring Wrong connection/ Check the wiring as per

& tripping values Wrong CT Ratio diagram.
Wrong polarity of CT
Relay will not allow changing
Setting are not Relay is in Trip/ its setting unless it is in
getting save & Pickup state healthy state. There should
changed not be any pickup & present
fault should be
acknowledged. Press Reset
button & clear the entire fault.
Tripping coil not Wrong connection / 1) Wiring to be checked.
operating Insufficient current to 2) Check whether the coil is
generate energy for Trip healthy.
3) Check the front Trip Ready
Green LED. It should
continuously blink. If it is not
blinking then relay can`t trip
the coil (insufficient energy
because of low current).
4) Use Trip Test to verify the
connection & relay operation.

Digital outputs are Aux Supply is not connected Two Digital outputs (Relays)
not operating work only in presence of
Auxiliary supply. To recheck
the Digital output operation,
Go to Trip Test Menu, Enter in
the <LED/RLY TST> option &
test the Relays.

Relay is not getting 1) Low Battery 1) P o w e r O N t h e r e l a y

on through Battery 2) Battery Seal is applied through Aux supply / current /
USB & go to battery status
menu, If Battery is low then it
Issue Date : 11.06.20, Rev. No : 05, Rev. Date : 18.05.22

display the Battery status

NOT OK. Replace the
battery
2) Check whether Battery
Seal is removed & both the
batteries are inserted with
proper polarity.

For further information, please contact: Technical Question or After-sales Service

C&S Electric Ltd. Customer Center Quick Response
Service, Excellent Technical Support 1800 572 2012
(Protection & Measurement Devices)
C-60, Wing-A, Phase-II, Noida-201 305, Dist: Gautam Budh Nagar (U.P) INDIA Phone : +91-120-38748 00 / 01

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