decomposed 3M™ Novec™ 5110 (an example
can be found in instruction manual
1YHA000300 en) is displayed in the
switchgear room.
- For SF
6
application: A work instruction for
handling of SF
6
(an example can be found in
instruction manual 1YHA000333) is displayed
in the switchgear room.
- The operators have been instructed in the
theory and practice of operation of the
switchgear and are familiar with all details of
operation.
3.2 Energizing the system
•
Please consult section 4 for procedures for
operating the devices. Also observe section 3.1.
•
Switch all circuit breakers off.
•
Switch all three-position disconnector off.
•
Switch all three-position disconnector off.
Connecting the incoming feeder panels
•
Switch the three position disconnector in the
incoming feeder panel to the “Disconnector
ON” position.
•
Switch the circuit breaker in the incoming
feeder panel “ON”.
•
The busbar is then at operating voltage.
Before connecting further incoming feeder
panels, ensure that the phase angle of
the panels is identical (section 5.2).
Connecting the outgoing feeder panels (loads)
when these are circuit breaker panels
•
Switch the three position disconnector in the
outgoing feeder panel to the “Disconnector
ON” position.
•
Switch the circuit breaker in the outgoing
feeder panel “ON”.
•
The loads are then switched on.
C O M M I S S I O N I N G
47
—
3. Commissioning
3.1 Conditions for commissioning of the switchgear
The conditions for commissioning of the
switchgear are as follows:
•
Supply voltage is available.
•
There are no active Insulating gas pressure alarms.
•
Visual examination and sample checks on
installation in accordance with this document
have been performed.
•
External control cables and wiring have been
installed.
•
Testing of the specified protection data of the
secondary equipment has been successfully
performed.
•
Protection testing has been passed.
•
Testing of all mechanical and electrical functions
of the switching devices and corresponding
operating mechanism has been successfully
performed.
•
Testing of the panel and switchgear interlocks
has been successfully performed.
•
Several trial switching operations (without
service voltage) on all switching devices have
been successfully performed.
•
Switch positions are correctly displayed on the
panels and – if necessary – in the control room.
•
If remote control systems are fitted, these have
been successfully tested.
•
Unused outer cones have been closed off and
insulated.
•
High-voltage testing has been successfully
completed.
•
The high-voltage cables have been installed
(after high-voltage testing of the busbar).
•
All cladding and covers have been fitted.
•
The following accessories have been handed
over to the operators.
- This manual.
- The corresponding documents and order
documents.
- Double bit key or barrel lock key for opening and
closing of the low voltage compartment door.
- Levers and cranks for operation of the operating
mechanisms (see list of accessories).
- Earthing set (optional).
- Plug-in indicator unit for capacitive
indication – if necessary (see section 5.1).
- Phase comparator in the case of more than
one incoming feeder (optional).
- For AirPlus application: A work instruction for
handling of AirPlus (3M™ Novec™ 5110 and
