ABB T Series - Page 18

18
Zenith ZTGSE/ZTSSE 30-2500A ATS, USER MANUAL
This Transfer Switch is suitable for use as
a Service Entrance ATS. Factory will
provide the unit with Neutral to Ground
bonding can be installed in the field as
per the requirement.
3-pole units are available with Solid
Neutral and 4-pole units are available with
Switched Neutral. 3-pole breaker is
provided as standard on 4-pole ATS. Sales
dimension drawing of the unit shows
overall layout of switch components,
Neutral and Ground link location.
Instruction for Service Disconnect
operation
For the unit without Shunt Trip option
To Disconnect the power:
(1) Operate the Breaker handle manually to
"Trip/open position" to trip the breaker.
(2) At this situation, there is no power to
the source 1 side of the ATS. Operator
must take appropriate action to remove
the Source 2 power.
(3) Verify the power is OFF.
To Restore the Power:
(1) Operate the Breaker handle manually to
"Close position" to connect the breaker to
Source 1.
(2) At this situation, there is power at
Source 1 side of ATS.
(3) Operate must take appropriate action
to enable Source 2.
For the unit with Shunt Trip option:
To Disconnect the power:
(1) Turn the selector switch to "Shunt Trip"
location. This will trip the Source 1 side
breaker. At this situation, there is no power
to the source 1 side of the ATS.
(2) Move the Selector switch to "Source 2
(GEN) Start Inhibit. This will INIHIT the
Generator to start so Source 2 (GEN)
power will no available.
(3) verify the power is OFF.
To Restore the Power:
(1) Operate the Breaker handle manually to
"Close position" to connect the breaker to
Source 1.
(2) Place selector switch to "Breaker
Energized" position.
Ground fault protection is equipment
protection from the effects of ground
faults. The National Electrical Code®
(NEC®) has specific ground fault
equipment protection requirements.
Ground Fault Protection (GFP) is an
available option in breaker. For 30-800A
SE unit, customer has an option to order
the breaker with GFP option. For 1000A
and higher amperage SE unit, breaker has
GFP option as standard.
GFP option monitor the current passes
through circuit and automatically trip the
breaker if the current value is out side of
set parameter. Refer to breaker manual to
get more details about GFP option.
—
Service Entrance Disconnect
SUITABLE FOR USE AS SERVICE EQUIPMENT
1. MANUALLY RESET TRIPPED CIRCUIT BREAKER.
2. REINSERT KEY AND PLACE SELECTOR
SWITCH BACK TO “ENERGIZED” POSITION.
1. PLACE KEYED SELECTOR SWITCH IN
“SHUNT TRIP” POSITION AND RELEASE.
2. REMOVE KEY TO PREVENT
UNAUTHORIZED RE-ENERGIZATION.
TO DISCONNECT POWER:
TO RESTORE POWER:
SERVICE DISCONNECT
SELECTOR
SWITCH
SOURCE 2
(GEN.) START
INHIBIT
BREAKER
ENERGIZED
SHUNT TRIP
V-2264