Type
VS50B
VS125B
VS250B
VS500B
VS750B
VS1000B
VS1500B
VS2000B
VS3000B
VS4000B
VS4200B
Overview
ABB voltage sensors based on
electronic technology only use electronic components In contrast to closed or
open loop Hall effect technology, no magnetic circuits or
Hall
effect probes are used in the sensor.
This
allows for the measurement of direct or alternating voltages with electrical
insulation between the primary and secondary circuits.
The primary voltage to be measured is applied directly to the sensor
terminals:
HT+ (positive high voltage) and HT (negative high voltage or
earth). This voltage
is passed through an insulating amplifier and is then converted to a
secondary
output current IS. This secondary current IS is electrically
insulated from the primary
voltage to which it is exactly proportional.
The voltage sensor measures instantaneous values.
Advantages
Electrical insulation between
the
primary and secondary
circuits.
Measurement of all waveforms
is
possible: direct voltage,
alternating
voltage, impulse, etc.
Excellent immunity to
electromagnetic
fields. Excellent accuracy.
High dynamic performance.
Excellent reliability.
Application
Traction Field
Main converters, auxiliary
converters
(lighting, air conditioning),
battery chargers,
choppers, substations, mining,
etc.