Manual ZX0 HB 600 en - Revision 05 | 35
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 mecha-
nisms 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 suc-
cessfully tested.
3 Commissioning
3.1 Conditions for
commissioning of the
switchgear
− Unused voltage transformer sockets and extendable bus-
bar 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 mecha-
nisms (see list of accessories)
− Earthing set (optional)
− Plug-in indicator unit for capacitive indication – if neces-
sary (see section 5.1)
− Phase comparator in the case of more than one incom-
ing feeder (optional)
− a work instruction for handling of SF
6
(an example can be
found in instruction manual HB 605/E) is displayed in the
switchgear room.
− The operators have been instructed in the theory and prac-
tice of operation of the switchgear and are familiar with all
details of operation.
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