GE SPST480 User manual

Introduction
The Shunt Trip and Shunt Trip with Lockout accessories,
shown in Figure 1, can be installed in 800–4000 ampere frame
ower Break® II circuit breakers. These accessories allow the
breaker to be tripped electrically from a remote location.
In addition to providing a trip signal to the breaker, the Shunt
Trip accessories can be set up to interact with other ower
Break II accessories, when used with a MicroVersaTrip lus™
or MicroVersaTrip M™ Trip Unit. DI switches on the rear
of the breaker Trip Unit can configure the Shunt Trip
accessories to activate a Bell Alarm–Alarm Only accessory or a
Bell Alarm with Lockout accessory when a sh unt trip occurs.
The Accessory Configuration section below describes how this
can be done. If the breaker is equipped with a ower+™ Trip
Unit, it is configured so that only protection trips will activate a
Bell Alarm–Alarm Only or Bell Alarm with Lockout.
The catalog numbers for the Shunt Trip and Shunt Trip with
Lockout for 480 and 600 Vac are listed in Table 1. Voltage and
current ratings in Table 1 are given at the input of the
transformer. The voltage and current ratings of the input to the
accessory are equal to that of the 120 Vac version of the
accessory. Table 2 lists these ratings.
Operation
Apply control voltage to the primary of the supplied step-down
transformer. The secondary of the transformer is connected to
terminals 31 and 32 of the termina l strip on the right side of
the breaker.
WARNING: 480 Vac and 600 Vac Shunt Trip accessories
must be used with the supplied step-down transformer.
AVERTISSEMENT: Les modules de déclenchement shunt 480
Vac et 600 Vac doivent être utilisés avec le transformateur
abaisseur de tension qui est fourni.
The Shunt Trip or Shunt Trip with Lockout will cause the
circuit breaker to trip when the control voltage is greater than
55% of the rated ac value. Control power to the Shunt Trip
must be removed before the brea ker can be closed. Control
power to the Shunt Trip with Lockout must be removed for a
minimum of 0.25 second before the breaker can be closed.
Figure 1. Shunt Trip with Lockout
Catalog
Number
Voltage
Rating➀Peak Inrush Current, mA➁Nominal RMS Current, mA
SPST480 480 Vac 375 21
SPST600 600 Vac 300 17
SPSTL480 480 Vac 750 20
SPSTL600 600 Vac 600 16
➀Rated for 50/60 Hz. Rating i 120 Vac without tep-down
tran former.
➁Peak inru h current i pre ent fo r 2–6 m after activation. Thi
number i provided o that fu e and upplie can be cho en
appropriately.
Table 1. Catalog numbers and voltages for the Shunt Trip and Shunt
Trip with Lockout.
Accessory
Voltage
Rating
Peak Inrush
Current, A
Nominal RMS
Current, mA
Shunt Trip 120 Vac 1.5 85
Shunt Trip/
Lockout 120 Vac 3 80
Table 2. Voltage and current ratings for the 12 Vac Shunt Trip and
Shunt Trip with Lockout.
Installation
WARNING: Before installing any accessories, turn the breaker
OFF, disconnect it from all voltage sources, and discharge the
charging springs.
AVERTISSEMENT: Avant d’installer tout accessoire, mettre
le disjoncteur en position OFF, le déconnecter de toute tension
d’alimentation, et décharger les ressorts d’armement.
The Shunt Trip or Shunt Trip with Lockout is installed in the
accessory compartment through the front of the circuit breaker in
the position shown in Figure 2.
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Power Break® II Circuit Breaker
Accessories
Shunt Trip and Shunt Trip with Lockout
48 & 6 Vac
GEH–6519B
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Courtesy of NationalSwitchgear.com

Figure 2. Accessory compartment on front of circuit breaker, with
Shunt Trip slot indicated.
Use the foll owing procedure to install the Shunt Trip accessory
into the Shunt Trip slot of the accessory compartment:
1. Open the hinged door over the accessory compartment and
Trip Unit.
2. To remove an existing accessory, loosen the accessory
locking screw and pull the accessory out with the Rating
lug Removal Tool (catalog number TRTOOL).
3. Insert the Shunt Trip accessory into the proper slot, as
illustrated in Figure 3. The Shunt Trip accessory is keyed
for the correct slot in the accessory compartment. If th e
accessory cannot be fully seated in the compartment, check
that the compartment position is correct.
Figure 3. Inserting a Shunt Trip into the accessory compartment.
4. Tighten the locking screw on the front of the accessory
until it is snug (9 in-lb).
CAUTION: Overtightening the locking screw may damage or
distort the case of the accessory.
ATTENTION: Le serrage excessif de la vis de verrouillage
peut déformer le boîtier d’accessoire.
5. If the breaker is equipped with a MicroVersaTrip lus or
MicroVersaTrip M Trip Unit, the Shunt Trip accessory
can be congifured to activate installed Bell Alarm–Alarm
Only or Bell Alarm with Lockout accessories when a shunt
trip occurs, with the procedure described in the Accessory
Configuration section.
6. Mount the supplied step-down transformer near the circuit
breaker.
7. Connect the control wiring for either Shunt Trip to the
primary side of the transformer, marked as the H
numbered terminals. Table 3 lists the correct transformer
primary taps.
8. Connect the secondary side of the transformer, marked as
the X numbered terminals, to terminals 31 and 32 of the
terminal block on the right side of the breaker. Table 3
lists the correct transformer secondary taps.
WARNING: 480 Vac and 600 Vac Shunt Trip accessories
must be used with the supplied step-down transformer.
AVERTISSEMENT: Les modules de déclenchement shunt 480
Vac et 600 Vac doivent être utilisés avec le transformateur
abaisseur de tension qui est fourni.
Catalog Number/
Control Voltage
Primary
Connections
Secondary
Connections
9T58K0042
480 V H1, H4➀X1, X2
9T58K0062
600 V H1, H4 X1, X3
➀ A jumper mu t be placed from H2 to H3.
Table 3. Primary and secondary connections for step-down
transformers.
9. Test the Shunt Trip to ensure proper operation, according
to the procedures below.
10. Reconnect power to the circuit breaker and any other
accessories.
11. Close and lock or seal the door over the accessory
compartment and Trip Unit to prevent unauthorized
changes to Trip Unit settings and to keep contaminants
out of empty accessory slots.
Accessor Configuration
This section only applies if Bell Alarm–Alarm Only or Bell
Alarm with Lockout accessories are installed in the breaker,
along with a MicroVersaTrip lus or MicroVersaTrip M Trip
Unit. If th e breaker is equipped with a ower+ Trip Unit, the
factory default settings, listed in Table 4, can not be changed.
The Shunt Trip accessory can be configured to activate the Bell
Alarm–Alarm Only or Bell Alarm with Lockout accessories if a
shunt trip occurs. The configuration can be changed by
removing the Trip Unit from the breaker, setting the DI
switches on the rear of the Trip Unit, and reinstalling the Trip
Unit. Figure 4 illustrates the Trip Unit rear DI switches and
their functions. Table 4 lists the switch functions and the
factory settings for each.
Description of Switch Settings
Following are descriptions of the effects of each accessory switch
when it is enabled.
1. When a Shunt Trip accessory causes the breaker to trip,
the contacts of the Bell Alarm–Alarm Only also change
state. (The factory switch setting is disabled.)
Shunt
Trip
or
Shunt
Trip
with Lockout
Bell Alarm
with
Lockout
Bell Alarm
-
Alarm
Only
Undervoltage
Release
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Figure 4. Accessory switch on the rear of the MicroVersaTrip Plus™ or
MicroVersaTrip PM™ Trip Unit, showing the factory settings (solid
part indicates that the switch is pushed in on that side).
Switch
actory
Setting unction
1 Di abled Shunt trip activate Bell Alarm–Alarm
Only
2 Di abled UVR trip activate Bell Alarm–Alarm
Only
3 Enabled Protection trip activate Bell
Alarm–Alarm Only
4 Di abled Shunt trip activate Bell Alarm with
Lockout
5 Di abled UVR trip activate Bell Alarm with
Lockout
6 Enabled Protection trip activate Bell Alarm
with Lockout
Table 4. Accessory switch settings, including the factory defaults.
2. When an Undervoltage Release accessory causes the
breaker to trip, the contacts of the Bell Alarm–Alarm Only
also change s tate. (The factory switch setting is disabled.)
3. When a protection trip (long-time, short-time,
instantaneous, ground-fault, or protective-relay) occurs,
the contacts of the Bell Alarm–Alarm Only also change
state. (The factory switch setting is enabled.)
4. When a Shunt Trip accessory causes the breaker to trip,
the contacts of the Bell Alarm with Lockout also change
state. (The factory switch setting is disabled.)
5. When an Undervoltage Release accessory causes the
breaker to trip, the contacts of the Bell Alarm with
Lockout also change state. (The factory switch setting is
disabled.)
6. When a protection trip (long-time, short-time,
instantaneous, ground-fault, or protective-relay) occurs,
the contacts of the Bell Alarm with Lockout also change
state. (The factory switch setting is enabled.)
Procedure for Changing Switch Settings
Change the accessory switch settings with the following
procedure:
WARNING: Before beginning this procedure, turn the breaker
off, disconnect it from all voltage sources, and discharge the
closing springs.
AVERTISSEMENT: Avant de commencer cette procédure,
mettre le disjoncteur en position OFF, le déconnecter de toute
tension d’alimentation, et désarmer les ressorts de fermeture.
1. Loosen the four #8-32 screws on the brea ker trim-plate
assembly and remove the trim plate.
2. Loosen the four #10-32 screws at the corner of the breaker
cover. Remove the cover from the breaker face.
3. ull the Trip Unit locking lever to the right, then hold the
Trip Unit near the battery cover and lift it straight out of
the breaker.
4. Refer to Figure 4 and Table 4 to determine the switches to
be changed.
5. ush in the appropriate “Enable” or “Disable” side of the
switch.
6. Confirm all switch settings before reinstalling the Trip
Unit in the breaker.
7. ull the Trip Unit locking lever to the right. While holding
the lever, carefully align the connector on the rear of the
Trip Unit with the connector in the breaker. ress down
on the Trip Unit, while holding it near the battery cover.
When the Trip Unit is fully seated, slide the locking lever
back to the left.
8. Reinstall the breaker top cover and tighten the four #10-32
screws to 32 in-lb.
9. Replace the trim plate and tighten the four #8-32 screws
to 20 in-lb.
10. Verify that the switch settings are correct by inducing
breaker trips from the Shunt Trip and Undervoltage
Release (if present) and checking the responses of the Bell
Alarm–Alarm Only and Bell Alarm with Lockout
accessories.
Test Procedure
Test the Shunt Trip for proper operation with the following
procedure.
1. Turn off the power to the Shunt Trip.
2. Close the breaker contacts.
3. Apply at least 55% of the rated ac voltage to the Shunt
Trip; the breaker should trip immediately.
4. If a Bell Alarm–Alarm Only or Bell Alarm with Lockout is
present, ensure that they activate (or do not activate) as
selected by the MicroVersaTrip lus or MicroVersaTrip
M Trip Unit DI switches.
If a Shunt Trip with Lockout has been installed, continue with
the following steps:
5. After the breaker has tripped and with the power still
applied to the Shunt Trip with Lockout, attempt to close
the breaker. The breaker should not close nor attempt to
close.
6. If a MicroVersaTrip lus or MicroVersaTrip M Trip
Unit is installed, check that th e Trip Unit display is active
(powered).
7. Remove power from the Shunt Trip with Lockout.
8. Attempt to close the breaker; it should close as normal.
Push
in
this side
to
disable
iinii
o
)
ui
W
w
ro
^
Rear
of
Trip
Unit
Push
in
this side
to
enable
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Trouble-Shooting
The following guide is provided for trouble-shooting and
isolating common problems. It does not cover every possible
situation. Contact the ED&C Customer Support Center at 800-
843-3742 if any problem is not resolved by these procedures.
Symptom Possible Cause Corrective Actio
1. The Shunt Trip accessory
will not insert completely
into the breaker.
The accessory is inserted
incorrectly.
Ensure that the accessory is inserted in the correct slot, as
in Figure 2, and that the label is upright.
2. The breaker will not trip
when control power is
applied to the Shunt Trip.
The Shunt Trip is not energized.
The installed Shunt Trip has an
incorrect voltage rating.
The transformer connections are
incorrect.
The Shunt Trip connection is
poor.
The breaker is not closed.
Check that Shunt Trip control power is applied at greater
than 55% of the rated ac voltage. Check that the accessory
is completely inserted; reinsert if necessary.
Check for the proper voltage rating on the Shunt Trip.
Ensure that steps 6, 7, and 8 in the Installation section
have been followed correctly.
Check that the Shunt Trip accessory is completely
inserted. Check that the Trip Unit is seated correctly. If
the Trip Unit was removed to set the switches, check that
it has been correctly installed; remove and reinstall, if
necessary.
Note that an otherwise unpowered Trip Unit would be
powered up by an energized Shunt Trip accessory.
Verify that the breaker is closed.
3.The breaker closes
manually when the Shunt
Trip with Lockout is
energized.
The Shunt Trip with Lockout
solenoid is not energized.
The Shunt Trip with Lockout
control power connection is poor.
Check that the Shunt Trip with Lockout control power is
applied at greater than 55% of the rated ac voltage. Check
that the accessory is completely inserted; re-insert if
necessary.
Note that an otherwise unpowered Trip Unit is powered
by an energized Shunt Trip accessory.
Check that the Shunt Trip with Lockout accessory is
completely inserted.
4. The breaker will not close
manually when the Shunt
Trip or Shunt Trip with
Lockout control power is
removed.
The Shunt Trip or Shunt Trip
with Lockout control power is
actually still applied.
The breaker is already closed
The Shunt Trip with Lockout
plunger is not retracted.
Check that the Shunt Trip or Shunt Trip with Lockout
control power has been removed.
Check that the breaker is not closed; if so, open it and try
again.
Remove the Shunt Trip with Lockout accessory. If the
lockout plunger protrudes out of the accessory, replace
the accessory. If the plunger does not protrude, reinsert
the accessory, ensuring good alignment of the accessory
in the pocket.
5. The breaker fails to close
after control power is
removed from the Shunt
Trip with Lockout.
Control power was not removed
for a minimum of 0.25 seconds
before the breaker was closed.
Wait at least 0.25 seconds before closing the breaker after
removing control power from the Shunt Trip.
These instructions do not cover all details or variations in e
q
ui
p
ment nor do the
y
p
rovide for ever
y
p
ossible contin
g
enc
y
that
ma
y
be met in connection with installation, o
p
eration, or maintenance. Should further information be desired or should
p
articular
p
roblems arise that are not covered sufficientl
y
for the
p
urchaser’s
p
ur
p
oses, the matter should be referred to the
GE Company.
g
GE Electrical Distribution & Control
General Electric Company
41 Woodford Ave., Plainville, CT 6 62
GEH-6519B 697 © 1997 General Electric Company
Courtesy of NationalSwitchgear.com