Operation And Maintenance; Operating - COMEM 170SB Manual De Instrucciones

170SC
Material
Flange colour
Ambient temperature
Degree of protection
Weight
Ventilation valve
Cable gland
Terminal box
Cable
Micro-switches
Micro-switches supply
Breaking and making capacity
*Only for C4 corrosion class. For critical environmental conditions please contact COMEM (comemservice@it.comem.com).

Operation and maintenance

The pressure relief device is ready for operation after
installation and electrical connection.
To check the switches pull the signaler out of the housing
to activate the switches. Then press the signaler back into
the housing to switch back the switches.

Operating

If the optical signaler is in the normal operating position,
this means that the pressure relief device has not been
tripped. If the switches report a signal anyway, the cause
may be in the tripping circuit. In this case, check the
tripping current circuit.
If the optical signaler is in the "alarm" outlet position, this
means that the pressure relief device has been tripped.
If the switches don't report a signal, the cause may be in
the tripping circuit. In this case, check the tripping current
circuit.
In this case contact the transformer manufacturer or the
on-load tap-changer manufacturer.
All the external parts are resistant to transformer oils, salt fog and UV rays.
All the internal parts are die-cast aluminum and AISI316 stainless steel.
The springs are powder coated steel
RAL 7032*
-40°C ÷ +100°C (-40°F ÷ 212°F)
IP67 in accordance with EN60529
16.5 kg (36.5 lb)
N.1 to prevent the formation of condensation
N.1 M25x1.5
Screw clamp 2.5 mm (0.0038 inc
2
Max 2.5 mm (0.0038 inc )
2 2
From N.1 to N.3 chance over contact
24 V ÷ 230 VAC/DC
Voltage
24 VDC ÷ 230 VDC
230 VAC
)
2
Uninterrupted current
(making capacity)
2 A
2 A
Maintenance
Regular maintenance is not required.
We recommend inspecting of the external condition of
the built-in device for damage and dirt. Remove dirt as
necessary.
Storage
The 170SB and 170SC pressure relief device storage has
to be done in its packaging, in dry place with temperature
in the range -10°C ÷ +40°C.
Upon receiving the pressure relief device, please check:
• the outer surface of the packaging to check that it is
intact;
• that there are no breakages.
If damages are found, please contact COMEM (e-mail:
comemservice@it.comem.com), quoting the data provided
in the shipping list and the serial number of the 170SB and
170SC pressure relief device.
Interrupted current
(breaking capacity)
100 mA L/R<40 ms
2 A cosφ>0.5
7