IG-322-EN version 03; 22/07/2022
56
Maintenance
General instructions
SF
6
-insulated circuit-breaker panel:
Type
gae
.630 -1LSV(G)-/5/
in modular extensible design up to 24 kV, 20 kA
7.2.2. Maintenance
Prior to maintenance, electrically isolate and secure
the operating range in accordance with the “safety
rules” specified by DIN VDE/IEC.
Maintenance is to be performed:
• At an interval of 10 years after commissioning, If found
necessary during the inspection.
• If found necessary during the inspection.
• After each 2.000 cycles of operation.
7.2.3. Cleaning the circuit-breaker panel
If the circuit-breaker panel is operated under dirty
conditions or in aggressive air, the surfaces must be cleaned
during maintenance.
Before starting cleaning work the circuit-breaker panel
must be isolated.
To avoid unintended operation, the supply voltage is
to be shut down.
Cleaning is performed using the following procedure:
• Manually switch on and off circuit- breaker (spring
accumulator tension is released, switch position
indicator is in the “OFF” position).
• Switch on earthing switch
• Open the fasteners and remove the front covers
(if required).
Carefully clean off all dirt, especially from the surfaces of
insulating materials.
Clean off strongly adhesive, e. g. greasy, dirt with a lint-free
cloth soaked in a commercial detergent, then wipe off with
clear water and dry.
Do not use any aggressive solvents!
7.2.4. Scope of maintenance on the vacuum circuit-breaker’s mechanical drive groups
• Shut down motor winding (if fitted).
• On the circuit-breaker, actuate the ON and OFF
pushbuttons as follows: OFF-ON-OFF.
• Remove the control panel cover.
• Assess the overall condition of the operating mechanism.
• Clean the surfaces with a soft, dry, lint-free cloth
• To re-lubricate friction surfaces and bearings with resin-
and acid-free lubricants (see Chapter 8.9) please contact
our customer service department. Re-lubrication serves
to refresh the lubricant.
• The maintenance plan of the circuit breaker must be
performed to the three-phase vacuum circuit breaker
by specialists every 2000 operations.
• Re-fit the control panel cover.
In case of problems during the maintenance work
and in case of malfunctions, please contact the plant
where the unit was manufactured.
The following information is required on contacting the
manufacturer:
• Type
• Serial number
• Year of manufacture
Summary of Contents for ORMAZABAL gae.630
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