4
Operating instructions
4.1 Circuit breaker trigging
Important
Read the manual and comply with the
Safety instructions before using B10E.
Always comply with local safety regula-
tions.
When the master ON/OFF switch on B10E is turned
on, you are ready to proceed with testing. As a rule,
output is set for the coil outputs before B10E is
started. Moreover, the coil outputs are usually set for
DC and the trig input is set for voltage sensing.
Warning
If the coil current is below 50 mA the 1 sec
automatic interruption will not work. A
potential hazard for burning the trip coil.
Note The COIL DC and AC outputs, CLOSING/
BREAKING, cannot be used simultaneously. A
time limit is imposed on the DC outputs. If the
DC outputs are loaded with minimum 50 mA,
the current will be interrupted after about
one second to protect the automatic control
circuitry.
The AC outputs can be loaded for up to 30
minutes at maximum specified power.
1] Ground B10E.
2] Switch off the master ON/OFF switch.
3] Check that the substation voltage is discon-
nected from the circuits in which B10E is to
be connected.
4] Turn the variable transformer to zero.
5] Make connections to the CB operating cir-
cuits.
6] Connect B10E to the mains power.
7] Switch on B10E.
Note The current inrush on starting is high and can
trip/blow a 10 A fuse.
8] Select the desired trig function and output.
You can select either manual or external trig-
ging via the coil outputs.
For manual trig, set the trig input to voltage
sensing.
For external trigging, you can select either
zero-potential contact sensing or 8–15 V
voltage sensing. Since B10E is usually used
together with a circuit breaker analyzer,
external contact sensing is normally selected
and the trip input is normally provided with
a short-circuiting jumper
9] Set the voltage to desired level using the
variable transformer.
10] Operate the CB.
Note If any of the protective cut-outs on B10E trip,
a lamp marked PROTECTION will light up.
Reset by pressing the RESET button. However,
you must wait a while before the thermal cut-
out can be reset.
Application examples
Manual trigging of CB
1]
Make certain that the mains are de-ener-
gized on both sides of the CB, and then
ground the CB on both sides.
2] Ground B10E.
3] Set the master ON/OFF switch on B10E to the
OFF position.
4] Connect the CB coil circuits to B10E, CLOS-
ING/BREAKING. Use the appropriate outputs
DC or AC. Connect the CB spring-charging
motor to B10E, MOTOR.
5] Connect B10E to the mains power.
6] Switch on the B10E master ON/OFF switch.
7] Check that B10E is set for the coil outputs,
and for the correct type of voltage, DC or AC.
8] Set the desired output voltage.
9] Select voltage sensing for the trig input.
10] Press the TRIG button (8) to start the desired
operation.
12 B10E ZP-BG02E BG0140ME
4 OPERATING INSTRUCTIONS
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