GE Industrial Solutions EntelliGuard 800–2000 A Frames, 240–600 Vac User’s Guide - Manual (Page 18)

EntelliGuard™ 800–2000 Ampere Power Circuit Breakers
Chapter 4. Accessory Operation
Chapter 4 contains the operation procedures for each of
the available breaker accessories.
4.1 Shunt Trip
The Shunt Trip allows the breaker to be opened remotely
by the EntelliGuard Messenger™. It is always provided on
electrically operated breakers. The catalog number and
operating voltage for the Shunt Trip are listed in Table 4.
For installation instructions see DEH168.
Catalog
Number
Voltage
Rating
WPS1SF60120 120 Vac, 60 Hz
Table 4. Catalog number and operating voltage for the Shunt Trip
accessory.
Operation
The Shunt Trip causes the circuit breaker to trip when its
coil is energized. An “A” auxiliary switch, which is closed
when the breaker is closed, is in series with the Shunt Trip
coil, as illustrated in Figure 5. The voltage source is
connected to positions 5 and 7 on the secondary dis-
connect.
Figure 5. Shunt Trip connections to the auxiliary switch and secondary
disconnect.
4.2 Charging Motor
The Charging Motor provides a means of electrically
charging the springs that close the breaker. The Charging
Motor is available only as a factory-installed option. It is
always provided on electrically operated breakers.
Operation
The circuit breaker closing springs are charged automati-
cally when control voltage is applied to terminals 8 and 17
of the secondary disconnect. When the springs are fully
charged, a cutoff switch automatically de-energizes the
motor. The closing springs will recharge automatically
after the breaker closes.
4.3 Remote Close
The Remote Close allows the breaker to be closed remotely
by the EntelliGuard Messenger™ after the closing springs
have been charged. It is always provided on electrically
operated breakers. The catalog number and operating
voltage for the Remote Close accessory are listed in Table
5. For installation instructions see DEH172.
Catalog Number Voltage Rating
WPRCSF60120 120 Vac, 60 Hz
Table 5. Catalog number and operating voltage for the Remote Close
accessory.
Operation
A circuit breaker equipped with the Remote Close acces-
sory can be closed by applying the rated control voltage to
terminals 9 and 18 of the secondary disconnect.
The Remote Close accessory is continuously rated and has
an antipump feature that prevents a motor-operated
breaker from repeatedly closing if the closing signal is
maintained. The closing control voltage must be removed
for 1–2.5 seconds and then reapplied for each breaker clo-
sure.
4.4 Open-Fuse Lockout
The Open-Fuse Lockout, shown in Figure 6, is supplied on
integrally fused breakers or when the breaker is used in
combination with a Fuse Rollout Element. When any fuse
blows, the Open-Fuse Lockout trips the breaker to prevent
single-phasing. This accessory is available only as a factory-
installed option.
Figure 6. Open-Fuse Lockout accessory.
Operation
The Open-Fuse Lockout contains an individual trip sole-
noid for each pole, connected directly across the fuse in
that phase. When any fuse blows, its solenoid is energized
and trips the breaker. An indicator shows which fuse has
blown. The breaker is mechanically trip-free and cannot
5
7
Aux Switch
3C
3
2
1
Shunt Trip