ABB CB-2000 User Manual page 23

3.1 Operating instructions
1.
Prepare the capacitor bank and units for maintenance according to supplier instructions, which should
include at least the instructions 1.1 to 1.3 listed below.
1.1
Switch off and disconnect the capacitor bank from the network.
1.2
Wait 10 minutes for the capacitor units to discharge to a maximum of 75 volts.
1.3
Ground and short-circuit the bank.
2.
Short-circuit the two bushings of the capacitor unit/parallel group to be measured.
3.
Remove the temporary short-circuit.
4.
Connect the voltage clips cable to the CB-2000 and connect the voltage clips to the capacitor unit or the
parallel group of units to be measured.
5.
Connect the clip-on transformer cable to the CB-2000 and hook on the clip-on transformer around one of
the bushings of the unit to be measured. Place it as close to the capacitor unit container as possible. The
direction of the clip-on transformer is not important for the measurement.
6.
Please refer to Section 4, CB-2000 User interface, of this User's Guide for handling of the CB-2000.
7.
After finishing the measurements, restore the bank for service according to supplier instructions.
ABB Power Capacitors | Portable Capacitance Meter CB-2000 — User´s Guide 23
3. Operating instructions