Figure 6-6. protective fault analysis -10 – Basler Electric BE1-700 User Manual

Page 142

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background image

Figure 6-6. 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

4 cycle
pre-trigger

Post-trigger recording

(Default: 15 cycle record, 4 cycle pre-trigger,
11 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

D2849-09.vsd

05-26-99

(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)

6-10

BE1-700 Reporting and Alarm Functions

9376700990 Rev M

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