Siemens SDR 15.5 kV Instruction Manual page 26

Table 3: Maintenance plan
Table 4: Spare parts
26
Work to be performed
Visual inspections:
1. Terminals clean and undamaged
2. No visible corrosion or damage to metal parts and cables
3. No loose parts (for example, bolts or connections)
4. Ground (earth) connections secure and undamaged
5. Labeling clearly legible
6. Three-phase type SDR controller undamaged and correctly secured.
Function tests:
1. Control and protection relay indicates fault-free operation of the
auxiliary power supply, batteries and capacitors (monitoring LEDs)
2. Fault-free operation of communication modules
3. Perform battery test or check result of last battery tests at the control
and protection relay.
Protection tests:
1. Protection test using secondary injection equipment, in conjunction
with recloser function test (see the Installation and commissioning
section of the control and protection relay instruction manual)
2. Function test of lockout handle.
Reset counter "Switching operations since last visit" (refer to control and
protection relay instructions)
Accessory/spare part
Surge arresters (3EK7)
Auxiliary power supply (PS1)
Switch unit driver (PCB2)
Capacitor board (PCB3)
External current transformer
External voltage transformer
Transformer for auxiliary voltage supply
Current/voltage transformer pole-mount frame
Control cable
Voltage sensor cable
Cover for position indicator
Animal guards
Set of terminal connectors (six pieces)
Set of batteries (four batteries, 12 Ah, 48 V)
Type SDR 15.5 kV to 38.0 kV distribution vacuum three-phase recloser
instruction manual
Heaters
Recommended interval
12 months (adjust interval
according to experience)
12 months (as part of visual
inspection)
Four years (adjust interval
according to experience)
Following every maintenance
session
Order number
On request
On request
On request
On request
On request
On request
On request
On request
On request
On request
On request
On request
On request
On request
On request
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