Cutler-Hammer HWT-500, Инструкция по эксплуатации

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I.B. 35-557
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CAN OR CHN MASTER RELAY OVERVOLTAGE CLOSE TEST
Before commencing work, refer to the Safety Information.
CAUTION
IF YOU REQUIRE RELAY CONTACT INDICATION THROUGH THE TEST SET’S RED AND
GREEN INDICATING LAMPS YOU MUST ISOLATE THE TYPE CAN OR CHN “COMMON, TRIP
AND CLOSE” LEADS. THESE LEADS ARE TYPICALLY IDENTIFIED ON A TYPE MG-8 IR MG-9
AS:
COMMON, AS WIRE #11; TRIP, AS WIRE #41 AND CLOSE, AS WIRE #6. REMOVE THESE
THREE LEADS FROM THE RELAY TERMINAL STRIP.
THE HWT-500 LEAD MARKED “COMM” IS PLACED ON THE RELAY TERMINAL WHERE WIRE
#11 WAS ATTACHED; LEADS MARKED “GREEN” IS PLACED ON THE RELAY TERMINAL
WHERE WIRE #41 WAS ATTACHED: LEADS MARKED “RED” IS PLACED ON RELAYTERMINAL
WEHRE WIRE #6 WAS ATTACHED.
DO NOT USE THE LEADS MARKED “COMM-RED-GREEN” ON ENERGIZED CIRCUITS.
ENERGIZING THESE LEADS MAY DAMAGE THE TEST SET.
Switch Positions
Network protector open and set for automatic operation.
FUNCTION Switch – “RELAY” position
I & PV Switch – PVA position
Supp VM Switch – CA position
PHASE switch –0
Single PH Test Switch – OFF
VARIAC – zero position
PHASE volt switch – ON position
SUPPLY Switch – 216 or 480 position depending on network system voltage
By rotating the VARIAC you can increase the in phase (zero degrees) overvoltage phasing value to
the desired overvoltage close value. The CAN or CHN relay overvoltage setting may be adjusted a
limited amount by varying the tension of the control spring. This control spring is connected to a
control spring adjusting shaft, which can be turned through the use of a screwdriver. The adjustment
should be made until the red indicator light is illuminated.