ABB ZX2 - Commissioning; Conditions for Commissioning of the Switchgear

4. COMMISSIONING 65
—
4. Commissioning
4.1. Conditions for commissioning of the
switchgear
The conditions for commissioning of the
switchgear are as follows:
• Supply voltage is available.
• There are no active SF
6
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 mechanisms 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 cable sockets, voltage transformer
sockets and extendable busbar sockets have
been closed off with insulating blanking plugs.
• Unused outer cones have been closed off and
insulated.
• High voltage testing at 80 % of rated short-
duration power-frequency withstand voltage U
d
to IEC 62271-200 has been passed.
• High voltage cables have been installed (after
performance of high voltage testing).
• 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
doors
- Levers and cranks for operation of the
operating mechanisms (see list of
accessories)
- Grounding 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)
- Crank for voltage transformer truck.
• A work instruction for handling of SF
6
(an
example can be found in instruction manual
HB 645 en) 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.