Voltage Sensors; Figure 5: Voltage Sensor Keva 17.5 B20 - ABB UniGear Series Engineering Manual

U NIG E AR DIG ITAL
2.1.2

Voltage sensors

Voltage measurement in the KEVA sensor is based on the resistive divider principle. Voltage
sensors are designed to be compact and shaped as support insulators. They can be installed
in the switchgear´s cable compartment or directly in the busbar compartment.
KEVA 17.5 B20
KEVA B sensor can be used in all applications up to the voltage level 17.5 kV. The sensor fulfils
requirements of accuracy class 0.5 for measurement purposes and accuracy class 3P for
protection purposes.

Figure 5: Voltage sensor KEVA 17.5 B20

Technical parameters
– Rated primary voltage
– Rated power frequency withstand voltage
– Rated lightning impulse withstand voltage
– Transformation ratio
– Accuracy class
1V LG 5 000 07 E
15 / 3 kV
38 (42) kV
95 kV
10 000: 1
0.5 / 3P
S E NS O R S
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