
IG-322-EN version 03; 22/07/2022
57
General instructions
SF
6
-insulated circuit-breaker panel:
Type
gae
.630 -1LSV(G)-/5/
in modular extensible design up to 24 kV, 20 kA
Maintenance
7.3. Fault clearance on the vacuum circuit-breaker
Fault
Possible cause(s)
Remedial action
1. Shunt release does not trip
• No voltage
• Voltage level too low
• With DC releases, polarity reversed
• Release defective
• Impulse duration too short
• Check supply lines and plug-in connections
(refer to circuit diagram)
• Check the voltage source
• Contact the manufacturer
• Observe the impulse duration
2. Undervoltage release does not trip
• See item 1
• See item 1
3. Motor winder does not tension
• No voltage
• Voltage level too low
• Motor defective
• See item 1
4. Switch switches OFF immediately
after being switched ON
• Permanent “OFF” signal present
• Undervoltage release not activated, if fitted
• See item 1
5. Switch can not be switched ON
mechanically
• If key lock is fitted
• Electrical closing lock-out activated
• Unlock
• Check electrical closing lock-out activated
6. Switch can neither be switched ON
mechanically nor electrically
• Electrical closing lock-out not activated
• Apply a supply voltage
• See item 1
Table 7.1.
7.4. Return of switchgear
For an
Ormazabal
switchgear, an operating time of many
years is assumed. The “sealed pressure system” according to
IEC does not require refilling of the SF
6
-gas over the entire
operating time. Due to the high reliability of the switchgear,
arc faults are almost completely ruled out.
When handling a failed or disused switchgear, the national
health and safety guidelines must be observed.
The switchgear contains the fluorinated greenhouse gas
SF
6
with 22.8t CO
2
equivalent, which is covered by EU
regulation 517/2014. SF
6
must be recovered and cannot be
released into the atmosphere.
When handling SF
6
, observe the standard IEC 62271-4.
All materials of this switchgear should be sent for recycling.
As a competent partner
Ormazabal
offers you the return of
your switchgear after the expiration of the operating time.
Here all necessary guidelines will be observed. The costs
involved depend on the legal requirements applicable at
the time of return.
Содержание ORMAZABAL gae.630
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