installation and operation Manual

Page 8
5.6 Ground FaultTime Settings
The ground fault time delay is a flat response with four
settings
(I, .15, .3, .5 second) available (Figure 12-3).The
I setting gives a trip response with no intentional delay
(Instantaneous). This option is available on Catalog Nos.
LSG and LSIG.
6.OTESTING
6.1 Functional Field Testing
A test receptacle is built into each trip unit to allow use of
the STK2 Test Kit. The Test Kit performs a test of the Long
Delay, Short Delay and Ground Fault functions.
6.2
6.2.1 Code Requirements
The National Electrical Code under Article 230 - 95 - C
requires that any ground
- fault protection system be
performance tested when first installed. The test shall be
conducted in accordance with approved instructions
I
\
I
I\ Remove- I
LTest
Jacks
Fig. 11 Adjustment Switches and Test Points
5
3@7
Short Delay Pickup
(Multiples
of Rated Current 1,)
Current
W
+
E
I Ih
1 Ilh 5
Short Delay Pick - up
(Multiples of Rated Cu
Current
irrent)
Fig. 12-1 Short Delay Trip Current Adjustment and Curve
Details
Fig. 12-2 Short Delay Trip Current and Short Delay Trip
Time Adjustment and Curve Details
40752-072(2) Effective 6/02
Performance Testing for Ground Fault Trip Units