Connecting The Remote Maintenance Bypass - Gtec CPS Serie Manual Del Usuario

C
ONNECTING THE
An additional maintenance bypass may be installed on a peripheral switchboard, for example, to enable the CPS to be
replaced without interrupting the power supply to the load.
It is absolutely essential to connect the "SERVICE BYPASS" terminal (see "View of CPS connections"
ref. 17) to the auxiliary contact of the SERVICE BYPASS switch. Closing the SERVICE BYPASS switch
(4) opens this auxiliary contact which informs the CPS that the maintenance bypass has been
activated. If this connection is not present, the power supply to the load may be shut off and the CPS
damaged.
NOTES: Use cables with a cross section that conforms to the indications given in "Cross Section of the Cables ".
Use a double insulated cable with a cross section of 1mm2 to connect the "SERVICE BYPASS" terminal to
the auxiliary contact of the remote maintenance bypass isolator.
Whenever the CPS is equipped with internal isolation transformer, check the compatibility between
the "remote maintenance bypass" and the neutral arrangement in the electrical plant.
REMOTE MAINTENANCE BYPASS INSTALLATION DIAGRAM
Peripheral switchboard
Internal connections of the CPS
MAIN LINE switch: automatic circuit breaker,
must conform to the indications given in "External
Protective Devices "
INPUT switch:
indications given in "Internal Protective Devices
of the CPS"
R M
EMOTE AINTENANCE
isolator conforming to
B
YPASS
OUTPUT switch: isolator conforming to the
indications given in "Internal Protective Devices
of the CPS"
SERVICE BYPASS switch: isolator conforming to
the indications given in "Internal Protective
Devices of the CPS" equipped with a normally
closed auxiliary contact
BYPASS LINE switch: automatic circuit breaker,
must conform to the indications given in "External
Protective Devices "
the BYPASS INPUT switch: isolator conforming to
the indications given in "Internal Protective
Devices of the CPS"
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