Figure 6-8. protective fault analysis -16 – Basler Electric BE1-851 User Manual

Page 118

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Figure 6-8. Protective Fault Analysis

Protective

element

picks up

Protective

element

trips

Breaker auxiliary

contact changes

state

Protective

element

drops out

Fast

dropout

current

detector

drops out

SG-TRIGGER

-Pickup

-Logic

PU + logic

Fast dropout

current

detector

Breaker

status

Fault summary

report triggered

(When SG-TRIGGER (PU or Logic) is TRUE)

A

B

Targets logged

C

Fault clearing

time calculated

D

Breaker

operate time

Oscillographic

Record

3 cycle

pre-trigger

Post-trigger recording

(Default: 15 cycle record, 3 cycle pre-trigger,

12 cycle post-trigger)

Post-trigger

1/4 to 5 cycles

of pre-trigger

E

F

Fault currents

recorded

G

Red TRIP LED

flashing

(When SG-TRIGGER (PU) is TRUE)

H

Red TRIP LED

solid

Breaker interruption

duty

Setting group

change blocked

I

J

P0032-17

07-22-05

(SB-LOGIC setting)

-Trip

When

SG-TRIGGER

(PU or Logic)

goes FALSE

(When SG-TRIGGER (PU or Logic) is TRUE)

(When SG-TRIGGER (PU or Logic) is TRUE)

(When SG-TRIGGER (PU) is TRUE)

(When SG-TRIGGER (Trip) is TRUE)

6-16

BE1-851 Reporting and Alarms

9289900990 Rev R

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