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C O M M I S S I O N I N G A N D T E S T I N G G U I D E
—
Apparatus control testing
Circuit breaker
Notice: This section will focus only on tests made
NOTICE
to verify that the breaker status is displayed in
the relay HMI. This will only be applicable if these
—
functions were included in the protection and
49 Single line diagram,
control schemes. Refer to the project
the circuit breaker
is closed and in the
documentation for this information.
test position
—
For all other breaker testing and commissioning
50 Single line diagram,
activities, refer to the specific Installation,
the circuit breaker
is open and in the
Operations and Maintenance Manual (IOMM) and/
test position
or the Breaker Commissioning Manual, document
—
#1VAL0501-MB, for the breakers provided in the
51 Single line diagram,
switchgear. The IOMM documents for MV ANSI
the circuit breaker is
in the intermediate
Digital Switchgear are:
position
• ADVAC Model 04 IOMM:
• AMVAC Model 04 IOMM:
• ADVAC 63 IOMM:
• Vmax/A IOMM:
• ADVAC G (Generator Circuit Breakers) IOMM:
1VCD601552
Please note that the circuit breaker can only be
closed when the circuit breaker truck is in the test
or connect position, not in an intermediate
position.
• Step 1/7
Move the circuit breaker into the test position
and close it. Check the circuit breaker status on
the protection relay LHMI.
IA (0)A
IB (0)A
IC (0)A
IG (0.0)A
VAB (0.0)kV
VBC (0.0)kV
VCA (0.0)kV
3P=(0)kW
3Q=(0)kVAr
—
49
1VAL050503-MB
1VAL050601-MB
1VAL050502
1VAL057601-MB
• Step 2/7
Check the impossibility of inserting the circuit
breaker into service when it is closed.
• Step 3/7
Open the circuit breaker. Check the circuit
breaker status on the protection relay LHMI.
IA (0)A
IB (0)A
IC (0)A
IG (0.0)A
VAB (0.0)kV
VBC (0.0)kV
VCA (0.0)kV
3P=(0)kW
3Q=(0)kVAr
—
50
• Step 4/7
Move the circuit breaker truck out of the test
position about a half turn of the crank. Check
the circuit breaker truck status on the
protection relay LHMI.
IA (0)A
IB (0)A
IC (0)A
IG (0.0)A
VAB (0.0)kV
VBC (0.0)kV
VCA (0.0)kV
3P=(0)kW
3Q=(0)kVAr
—
51
• Step 5/7
Check that the interlock prevents the circuit
breaker contacts closing if the truck is
positioned between the service and test
position.
29
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