Omicron CIBANO 500 PTM - Timing (CSM) Test

CIBANO 500 PTM User Manual
226 OMICRON
17.3.5 Timing (CSM) test
The Timing (CSM) test (CSM stands for Current Sensor Measurement) measures the contact timing of
the circuit breaker. Depending on the selected sequence the opening time, closing time, close-open
time, and so on are automatically calculated. With the CB TN3 modules, you can also measure the
displacement of the circuit breaker’s main contacts during operation (see 17.5 "Testing circuit breakers
with CIBANO 500 and the CB TN3 modules" on page 252).
Connection
To connect the test object to CIBANO 500:
Figure 17-42: Connecting the CB MC2 module to a both-side grounded GIS
1. Make sure that all cable connectors are clean and dry before being tightly connected.
2. Connect the CB MC2 to CIBANO 500 with the EtherCAT
®
cable.
WARNING
Death or severe injury caused by high voltage or current possible
► Do not connect anything to the circuit breaker under test without grounding the circuit breaker.
► Always ground the circuit breaker on both ends on all phases and close the circuit breaker to
have proper grounding between the interrupters.
WARNING
Death or severe injury caused by high voltage or current possible
► Do not connect the EtherCAT
®
cables to the CB MC2 module before they are connected to
CIBANO 500.
► Connect the EtherCAT
®
cables first to CIBANO 500 and then to the CB MC2 module.
Closed grounding switch
grounding shunt NOT removed
Closed grounding switch
grounding shunt NOT removed
CB MC2
Current sensor
Kelvin clamp