/PERATING INSTRUCTIONS
3$
6
# ' #
4ESTING AND COMMISSIONING
'ENERAL
0REREQUISITE FOR COMMISSIONING IS THE COMPLETION OF
THE PREPARATION PROCEDURES DETAILED IN #HAPTER
(AZARDOUS VOLTAGES ARE PRESENT IN THIS
ELECTRICAL EQUIPMENT DURING OPERATION
.ONOBSERVANCE OF THE SAFETY RULES CAN
RESULT IN SEVERE PERSONAL INJURY OR PROPER
TY DAMAGE
/NLY QUALIFIED PERSONNEL SHALL WORK ON
AND AROUND THIS EQUIPMENT AFTER BECOM
ING THOROUGHLY FAMILIAR WITH ALL WARNINGS
AND SAFETY NOTICES OF THIS MANUAL AS WELL
AS WITH THE APPLICABLE SAFETY REGULATIONS
0ARTICULAR ATTENTION MUST BE DRAWN TO THE
FOLLOWING
!
4HE EARTHING SCREW OF THE DEVICE
MUST BE CONNECTED SOLIDLY TO THE
PROTECTIVE EARTH CONDUCTOR BEFORE
ANY OTHER CONNECTION IS MADE
!
(AZARDOUS VOLTAGES CAN BE PRESENT
ON ALL CIRCUITS AND COMPONENTS CON
NECTED TO THE SUPPLY VOLTAGE OR TO THE
MEASURING AND TEST QUANTITIES
!
(AZARDOUS VOLTAGES CAN BE PRESENT
IN THE DEVICE EVEN AFTER DISCONNEC
TION OF THE SUPPLY VOLTAGE STORAGE
CAPACITORS
!
4HE LIMIT VALUES GIVEN IN THE 4ECHNI
CAL DATA 3ECTION MUST NOT BE EX
CEEDED AT ALL NOT EVEN DURING TESTING
AND COMMISSIONING
7ARNING
7HEN TESTING THE UNIT WITH A SECONDARY INJECTION TEST
SET IT MUST BE ENSURED THAT NO OTHER MEASURED VAL
UES ARE CONNECTED AND THAT THE TRIPPING LEADS TO THE
CIRCUIT BREAKER TRIP COILS HAVE BEEN INTERRUPTED
3ECONDARY CONNECTIONS OF THE CURRENT
TRANSFORMERS MUST BE SHORTCIRCUITED
BEFORE THE CURRENT LEADS TO THE RELAY ARE
INTERRUPTED
)F A TEST SWITCH IS INSTALLED WHICH AUTOMATI
CALLY SHORTCIRCUITS THE CURRENT TRANSFORMER
SECONDARY LEADS IT IS SUFFICIENT TO SET THIS
SWITCH TO THE 4EST POSITION 4HE SHORTCIR
CUIT SWITCH MUST BE CHECKED BEFOREHAND
REFER TO 3ECTION
$!.'%2
)T IS RECOMMENDED THAT THE ACTUAL SETTINGS FOR THE
RELAY BE USED FOR THE TESTING PROCEDURE )F THESE VAL
UES ARE NOT YET AVAILABLE TEST THE RELAY WITH THE FAC
TORY SETTINGS )N THE FOLLOWING DESCRIPTION OF THE TEST
SEQUENCE THE PRESET SETTINGS ARE ASSUMED UNLESS
OTHERWISE NOTED FOR DIFFERENT SETTING VALUES FORMU
LAE ARE GIVEN WHERE NECESSARY
&OR THE FUNCTIONAL TEST A SINGLEPHASE CURRENT SOURCE
IS SUFFICIENT
./4%
4HE ACCURACY WHICH CAN BE ACHIEVED DURING
TESTING DEPENDS ON THE ACCURACY OF THE TESTING
EQUIPMENT 4HE ACCURACY VALUES SPECIFIED IN THE
4ECHNICAL DATA CAN ONLY BE REPRODUCED UNDER THE
REFERENCE CONDITIONS SET DOWN IN )%# RESP
6$% PART AND WITH THE USE OF PRECISION
MEASURING INSTRUMENTS 4HE TESTS ARE THEREFORE TO BE
LOOKED UPON PURELY AS FUNCTIONAL TESTS
$URING ALL THE TESTS IT IS IMPORTANT TO ENSURE THAT THE
CORRECT COMMAND TRIP CONTACTS CLOSE THAT THE
PROPER INDICATIONS APPEAR AT THE ,%$S AND THE OUT
PUT RELAYS FOR REMOTE SIGNALLING )F THE RELAY IS CON
NECTED TO A CENTRAL MEMORY DEVICE VIA THE SERIAL IN
TERFACE CORRECT COMMUNICATION BETWEEN THE RELAY
AND THE MASTER STATION MUST BE CHECKED
!FTER TESTS WHICH CAUSE ,%$ INDICATIONS TO APPEAR
THESE SHOULD BE RESET AT LEAST ONCE BY EACH OF THE
POSSIBLE METHODS THE RESET BUTTON ON THE FRONT PLATE
AND VIA THE REMOTE RESET INPUT SEE CONNECTION DIA
GRAMS !PPENDIX ! )F THE RESET FUNCTIONS HAVE BEEN
TESTED RESETTING THE STORED INDICATIONS IS NO MORE
NECESSARY AS THEY ARE ERASED AUTOMATICALLY WITH
EACH NEW PICKUP OF THE RELAY AND REPLACED BY THE
NEW ANNUNCIATIONS
Summary of Contents for 7SD502
Page 148: ... PPENDIX 3 6 PPENDIX ENERAL DIAGRAMS ONNECTION DIAGRAMS 4ABLES ...
Page 176: ... 3 6 ...