ABB UniGear Digital, Commissioning And Testing Manual, Page: 30 / 98

RECOMMENDED PR IMAR Y TESTING DEVICE PRIM AR Y TESTING
18 1VLG5000 17 C
4 Primary testing
Primary testing is valuable for verification of the whole measurement chain in the application
including switching equipment (circuit breaker or contactor). The measuring chain includes
the sensor, cable connections and settings of the protection relay.
UniGear Digital solution vs. traditional UniGear switchgear family
– No complex checks of inter-panel wiring are required
– Ethernet network fault detection is available
– Higher protection relay engineering skills is required in case of modifications
– Licensed software is not required
– For pre-testing, secondary tester with sensor support (low voltage output signals) is re-
quired
– The setting of sensors in the protection relay is described in the UniGear Digital Engineer-
ing guide.
4.1 Recommended primary testing device
For primary current and voltage injection you can use existing devices. There are multifunc-
tional primary test systems, such as the Omicron CPC 100, available on the market which ena-
bles entering sensor correction factors and the display of a directly correct value for both cur-
rent and voltage sensors.
Introduction of CPC 100 – key features:
– Supply up to 800 A or 2000 V with max. 5 kVA power output, over a frequency range of 15
Hz – 400 Hz or 400 A DC
– Supply up to 2000 A or 12 kV using external current or voltage amplifiers
Figure 28: Primary test system CPC 100 from Omicron