40
PrimeGear ZX0
P R O D U C T M A N U A L
2.3.4.9 Installation of busbar voltage sensors
Observe the correction factors on the name plate
of the sensors before mounting. These are required
for the programming of the protection device.
The busbar voltage sensors are to be installed after
installation of the busbars and before the busbar
covers are fitted.
No additional parts are needed for voltage sensor
assembly. Rotate the voltage sensor manually with
its internal thread.
•
Before installing the voltage transformers,
remove the insulating plugs from the relevant
end or cross adapters.
•
Bolt the individual parts of the voltage sensor
frame together (Fig. 2.3.4.9.1).
Bolt the frame to the roof plate of the panel module
as shown in Fig.
Check the transformer for damage prior
to installation.
If you note any damage on the transformer,
only use the component after this has been
agreed with ABB Service Department.
•
The surface of the cone must be free of:
- gas bubbles.
- scoring.
- damage.
- abrasions.
- foreign bodies.
Cleaning of soiled cone surfaces
Clean the cone of the transformer immediately
prior to installation as follows:
•
Remove surplus or dirty grease from the cone
surface with a soft, clean, non-fraying cloth.
Only use intensive cleaner M.X.T. 60 forte
as the cleaning agent.
•
Clean the surface of the cone with the cleaning
agent and a soft, clean, non-fraying cloth.
•
After cleaning with intensive cleaner M.X.T. 60
forte, wipe the surface of the cone with a dry
cloth.
Cleaning the busbar adapters
Only use intensive cleaner M.X.T. 60 forte
as the cleaning agent.
•
Clean the silicone surface with the cleaning
agent and a soft, clean, non-fraying cloth.
•
Only moisten the cloth slightly with intensive
cleaner. Apply only moderate pressure when
cleaning the silicone surfaces.
•
After cleaning with intensive cleaner M.X.T. 60
forte, wipe the silicone surface with a dry cloth.
Greasing the cones
•
Grease the cone of the transformer and the
cone of the adapter lightly, evenly and
completely with assembly paste (part number
1VB0000207P0101).
Mounting the sensors (Fig. 2.3.4.9.1 to 2.3.4.9.3)
•
Insert the cone of the voltage sensor together
with a clean cable tie into the cone of the adapter.
The cable tie serves to vent the area below the
voltage transformer cone.
•
Turn the internal thread of the voltage sensor on
the threaded stud of the adapter and tighten
the voltage sensor manually.
•
Pull out the cable tie and turn the voltage sensor
approximately 1.5 turns counterclockwise.
•
Tighten the voltage sensor to 30 Nm.
•
Mount the other sensors in the same way.
•
Connect the earthing leads of the sensors to the
earthing points of the console (Fig. 2.3.4.9.2).
•
After installing the front wall of the busbar cover
or the pressure relief channel (see separately
supplied mounting drawings), pass the cable of
the sensor cables, which are provided with
plugs, through the openings provided in the low
voltage compartment. Close the opening in the
front wall of the busbar cover or the pressure
relief duct with the cable cover in Fig. 2.3.4.9.1.
•
Insert the connectors of the sensor cables
according to the circuit diagram into the sockets
of the device provided for this purpose.
