Table 8-27. backup virtual switch logic -54 – Basler Electric BE1-851 User Manual

Page 210

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Function

Purpose

BESTlogic

Expression

Mode

Setting

51P

Used for timed phase overcurrent protection.

0

1 (enabled)

51N

Used for timed neutral overcurrent protection.

0

1 (enabled)

51Q

Used for timed negative-sequence overcurrent

protection.

0

1 (enabled)

62

N/A

0

0 (disabled)

162

N/A

0

0 (disabled)

79

N/A

0

0 (disabled)

BF

Initiate breaker failure when breaker failure initiate

expression is TRUE.

VO10

1 (enabled)

Block breaker failure protection when relay is in test

mode.

VO15

GROUP

Switch to setting group 1 if feeder relay is out of

service as indicated by open contact from feeder

relays.

/IN2

2(Binary

Inputs)

No manual logic is used.

0

No manual logic is used.

0

No manual logic is used.

0

Fix Auto/Manual switch in the manual position only.

Selection by contact sensing only. No automatic

selection logic.

0

Table 8-27. BACKUP Virtual Switch Logic

Switch

Purpose

Mode

Label

State Labels

True

False

43

N/A

0 (Disable)

SWITCH_43

CLOSED

OPEN

143

N/A

0 (Disable) SWITCH_143

CLOSED

OPEN

243

N/A

0 (Disable) SWITCH_243

CLOSED

OPEN

343

Put the relay in test mode so

that reclosing and breaker

failure are disabled when virtual

switch is closed.

2 (On/Off) TESTENABLE

TSTMODE

NORMAL

101

Virtual Control Switch to trip bus

breaker.

1 (Enable)

N/A

N/A

N/A









8-54

BE1-851 Application

9289900990 Rev R

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