Automatic transfer switch ATS

タイトルまたは説明

Function description for HYCQ5P automatic transfer switch

Automatic put-in,automatic restoring: when the normal power is in normal conditon,

controller sends out command, normal power control circuit breaker closes and

reserve power control circuit breaker opens, automatic transfer switching equipment

is at state of (1, 0). When thenormal power is abnormal, controller will send out

command, let the normal power control breaker open and reserve power control

breaker close, and the automatic transfer switching equipment is in (0,1) state. When

the normal power returns to normal, controllers will send out command, normal power

control breaker closes, reserve power control breaker opens, automatic transfer

switching equipment is in (1,0) state again.

Automatic put-in but not automatic restoring: when the normal power is in normal

condition, controller sends out command, normal power control circuit breakeer

closes and reserve power control citcuit breaker opens, automatic transfer switching

equipment is at state of (1, 0). When the normal power is abnormal, controller will

send out command, let the normal power control breaker open and reserve power

control breaker close, and the automatic transfer switching equipment is in (0,1) state.

When the normal power returns to normal, automatic transfer switching equipment is

still in (0, 1) state, only operating the RESETthat can enable the normal

power control breaker to close and reserve power control breaker to open, and let the

automatic transfer switching equipment return to (1, 0) state.

Standby for each other: when the normal power is in normal condition, controller

sends out command, normal power control circuit breaker closes and reserve powe

control circuit breaker opens, automatic transfer switching equipment is at state of

(1, 0). When the normal power is abnormal controoler will send out command , let

the normal power control breaker ioen and reserve power control breaker close,

and the automatic transfer switching equipment is in (0, 1) state. When the normal

power returns to normal, automatic transfer switching equipment is still in (0, 1) state,

only when the reserve power fails that the normal power control breaker closes and

reserve power control breaker opens, and automatic transfer switching equipment

returns to (1, 0) state.

Command (fire control) reset (fire control command cutting off the non fire control

power): No matter what state is the automatic transfer switching equipment, once

receiveing command of cutting off the non fire control power from fire control center,

it would open the normal power control breaker and reserve power control breaker of

automatic transfer switching equipment, let the switch in state (0, 0).

Feedback signal: it feeds back the signal of working state of the two control breakers

of automatic transfer switching equipment, usually the signal is got from the auxiliary

contact of control breaker.

Power grid-powr grid: power source of automatic transfer switching equipment is from

two circuits of power grid supply.

Power grid-generator: power source of automatic transfer switching equipment isfrom

the power grid and generator.

Interconnection type: Interconnection type automatic transfer switching equipment

is made up of three molded case circuit breakers. Among them, QA and QB molded

case circuit breakers are supplied by two circuits of power supply or two segments of

busbar power source separately, QC molded case circuit breaker is interconnected

at output terminal of QA and QB. When any one circuit of power source is faoled, the

breaker would open, QC breaker closes, and through interconnection of this circuit

breaker, the equipment is supplied by another circuit of power source, when the fault

is eliminated, the inter connection circuit breaker opens, the trouble power circuit

breaker recloses. Automatic transfer switching equipment recover snormal operation.