Voltage transformer replacement for ohmic voltage sensors;
Cut-off frequency fg=200 Hz, no zero voltage output

Part-No.: 2502073

Voltage transformer replacement for medium-voltage switchgears Description The CAPDIS-4o... more
Product information "CAPDIS-4o"

Voltage transformer replacement for medium-voltage switchgears


The CAPDIS-4o amplifier provides an output voltage of 3 x 100 VAC /sqrt (3) in combination with three ohmic coupling electrodes. The amplifier can therefore be used as a replacement for three inductive voltage converters.

  • economic alternative to voltage transformers in feeders
  • minimum space requirement, no additional measuring field required
  • no disassembly required for surge stress tests
  • no ferroresonance risk

High device class accuracy

The device class accuracy is 0.5%. Higher accuracy on request.

Universal system components

  • ohmic divider type OKE for air-insulated switchgears, series 12 kV, 24 kV or 36 kV
  • ohmic divider type OAS for angle plug in gas-insulated switchgears, series 12 kV or 24 kV
  • Voltage amplifier type CAPDIS-4o

OAS 12, OAS 24 with BNC

for asymmetric angle plugs

OAS 12, OAS 24 with BNC

for symmertric angle plugs

OKE 12, OKE 24 with BNC

for air-insulated systems

OKE 36 with BNC

for air-insulated systems

Technical data


Auxiliary voltage

24 ... 240 VAC / DC

Nominal frequency

50 ... 60 Hz

Power consumption

Approx. 7.5 VA

Degree of protection


Input signal

3.25 V/√3

Output signal

3 x 100 VACeff, 3 x 0.5 VA

Storage temperature

-25 ° C.. +85 ° C

Operating temperature

-20 ° C.. +70 ° C

Class accuracy

1, according to IEC 60044


600 g


h x w x t = 115 x 175 x 49 mm


35 mm standard rail

Connection lines

Coaxial, standard length 3 m, 6 m


Use Examples

  • Connection of protective relays with conventional 100 VAC voltage measurement input
  • Connection of universal measuring devices and network analyzers
  • for critical safety applications (no ferroresonance)
  • Retrofitting even in confined spaces