GE IS200VAOCH1C VME Analog Output Card

Description

GE General Electric Technical Specifications: IS200VAOCH1C

Breaker status indication is based on the breaker 52a and 52b contacts. With both contacts wired to the relay,

the IS200VAOCH1C closed status is determined by a closed 52a contact and the open status is determined by a closed 52b

contact. If both 52a and 52b contacts are open, due to a breaker being racked out of the switchgear, both the

BREAKER OPEN and BREAKER CLOSED indicators will be off.

With a single 52a contact, it is impossible to distinguish between a breaker open state and a racked out

IS200VAOCH1C breaker. In both situations, the 52a contact will be open. With a single 52b contact, you cannot distinguish

between a breaker closed state and a racked out breaker. Likewise, the 52b contact will be open for both situ

ations. To clarify this ambiguity, the breaker connected function should be programmed to an additional logic

input. When this additional input is closed, a single 52a or 52b contact will show both breaker states. When the

breaker is racked out, this additional breaker connected input should be open. In this case, both breaker status

indicators will be off.

IS200VAOCH1C RECLOSURE ENABLED (760 ONLY): This indicator will be on continuously when autoreclosure is allowed to

operate as programmed. This is when the autoreclose function setpoint is enabled, and if used, the block reclo

sure logic input is not asserted. Otherwise, this indicator will be off. Note that this indicator will always be in the

opposite state of the RECLOSURE DISABLED indicator.

RECLOSURE DISABLED (760 ONLY): This indicator will be on continuously when autoreclosure is not

allowed to operate as programmed. This is when the autoreclose function setpoint is disabled, or if used, the

block reclosure logic input is asserted. Otherwise, this indicator will be off. Note that this indicator will always

be in the opposite state of the RECLOSURE ENABLED indicator.

RECLOSURE IN PROGRESS (760 ONLY): If a trip initiates a reclosing sequence, this indicator will go on con

tinuously during each of the programmed dead times.

RECLOSURE LOCKOUT (760 ONLY): If the programmed reclose sequence has progressed to a final lockout

condition, this indicator will be on continuously. Lockout can be cleared by performing a reset.

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