/PERATING INSTRUCTIONS
3*
6
# ' #
34!24 4)-%
350%26)3)/.
"EGINNING OF THE BLOCK 3UPERVISION OF START UP
TIME FOR MOTORS
2
34!24 3506
/&&
/.
3WITCHING
/&&
THE SUPERVISION OF START UP TIME
3WITCHING
/.
THE SUPERVISION OF START UP TIME
.
n
) 3424 -!8
))N
"ASE VALUE OF THE PERMISSIBLE START UP CURRENT
3ETTING RANGE
))
.
TO
))
.
REFERRED TO RATED CURRENT OF THE RELAY )
.
m
n
4 3424 350
S
3ETTING VALUE OF THE PERMISSIBLE START UP TIME
4
3424 350
AT )
3424 -!8
3ETTING RANGE
S TO
S
m
n
4 ,/#+ 2/4
S
4RIP TIME DELAY WITH LOCKED ROTOR
3ETTING RANGE
S TO
S
AND
0
NO TRIP WITH DEFINITE CHARACTERISTIC
m
n
3ETTINGS FOR THERMAL OVERLOAD PROTECTION
ADDRESS BLOCK
4HE RELAY INCLUDES A THERMAL OVERLOAD PROTECTION
FUNCTION REFER TO 3ECTION 4HIS CAN OPERATE ONLY
WHEN IT IS CONFIGURED TO 4(%2-!, /,
%8)34
UNDER
ADDRESS DURING CONFIGURATION OF THE DEVICE
FUNCTIONS REFER TO 3ECTION
#ABLES TRANSFORMERS AND ELECTRICAL MACHINES ARE
PARTICULARLY ENDANGERED BY OVERLOADS OF LONGER DU
RATION 4HESE OVERLOADS CANNOT AND SHOULD NOT BE
DETECTED BY THE SHORT CIRCUIT PROTECTION 4HE OVER
CURRENT TIME PROTECTION FOR EXAMPLE MUST BE SET
SUFFICIENTLY HIGH SO AS TO ONLY DETECT SHORT CIRCUITS
/NLY SHORT DELAYS ARE PERMITTED FOR SHORT CIRCUIT
PROTECTION 4HESE SHORT TIME DELAYS HOWEVER DO NOT
PERMIT MEASURES TO UNLOAD THE OVERLOADED OBJECT
NOR TO UTILIZE ITS LIMITED OVERLOAD CAPACITY
4HE PROTECTION CONTROL AND SUPERVISION DEVICE
3* INCLUDES AN OVERLOAD FUNCTION WITH A THERMAL
TRIP CHARACTERISTIC WHICH CAN BE MATCHED TO THE OVER
LOAD CAPACITY OF THE PROTECTED OBJECT
4HE OVERLOAD PROTECTION FUNCTION CAN BE SET TO BE IN
OPERATIVE OR TO INITIATE AN ALARM OR TRIPPING INCLUDING
ALARM ADDRESS
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