X
Operating frequency [n]
Breaking current Ia [kA
ABB IN THE RAILWAYS – MEDIUM VOLTAGE PRODUCTS
27
ABB IN THE RAILWAYS – MEDIUM VOLTAGE PRODUCTS
27
1VSR630206EN – en – EDO-D0002852– Instruction manual – 2021.10 Design and specification are subject to change without notice
8.2.2.1. Procedure
Dismantle the cover panel of the drive unit
gauge into the mating piece of the pole and
check the pressure
leak as small a quantity of gas as possible
seal the pole again
Quick-action
coupling cap
Pressure
gauge
8.2.3. Checking the Vacuum Interrupter
current, the contact becomes more or less heavily
theoretically according to the corresponding
be carried out.
Inspect the vacuum interrupter using a
vacuum tester (recommended every 10
years, but not compulsory)
For this check, the apparatus must be in an
electrically secured and switched-on state
Before the measurement, the drive unit cover
panel must be removed, in order to obtain access
operated mechanism.
The dimension “X”
of 5 mm. Normal values for this dimension for
A gauge for easy measurement is available on
request.
If the measured value “X” drifts from the
advice, contact ABB.
This exchange including the necessary final tests
must be performed by ABB specialists at ABB.
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