Schweitzer Engineering SEL-351P - Reclosing Relay States and General Operation

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6-12 Close and Reclose Logic Date Code 990215

SEL-351P Manual Técnico

Reclosing Relay States and General Operation

Figure SECTION 6: .5 explains in general the different states of the reclosing relay and its

operation.

Figure SECTION 6: .5: Reclosing Relay States and General Operation

Table SECTION 6: .1: Relay Word Bit and Front-Panel Correspondence to Reclosing

Relay States

Reclosing Relay State

Corresponding

Relay Word Bit

Corresponding

Front-Panel LED

Reset 79RS RS

Reclose Cycle 79CY CY

Lockout 79LO LO

The reclosing relay is in one (and only one) of these states (listed in Table SECTION 6: .1) at

any time. When in a given state, the corresponding Relay Word bit asserts to logical 1, and the

LED illuminates. Automatic reclosing only takes place when the relay is in the Reclose Cycle

State.