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Indoor Voltage Transformers

Indoor Voltage Transformers 12 - 36 kV

The Voltage Transformers series EGS / EGG / EY (single-pole insulated) and ZGS / ZGG (double-pole insulated) are maintenance-free cast-resin transformers for indoor application for system voltage Um up to 36 kV. They comply with various national and international standards (IEC 60044-2, VDE 0414, DIN 42600, ÖVE-P20, ANSI, GOST etc.).

Single-Pole Insulated Voltage Transformers:

  • secondary 100/√3 V or 110/√3 V
  • accuracy classes 0.2, 0.5, 1, 3, 3P and 6P
  • winding for earth-fault detection on request (100/3 V or 110/3 V)
  • voltage factor 1.9 x Un for 8 hours
  • frequency 50 Hz or 60 Hz
  • EGS10/S and EGS20/S can be equipped with primary fuse

Double-Pole Insulated Voltage Transformers:

  • secondary 100 V oder 110 V
  • accuracy classes 0.2, 0.5, 1, 3
  • voltage factor 1.2 x Un or 1.5 x Un
  • frequency 50 Hz or 60 Hz

Our instrument transformers can be delivered in a calibratable design for metering purposes. Type approvals for calibration are available for several countries.

We also produce current and voltage transformers in special designs and specification - we are looking forward to your inquiry!


Transformer Type System Voltage (Um) Insulation Level thermal limiting output Max. Output Cl. 0,2 Max. Output Cl. 0,5 Max. Output Cl. 1 Weight
 
KV rms
KV rms/KV
VA
VA
VA
VA
Kg
EGS 10
12
28/75
400
30
90
180
14
EGS 10/S
12
28/75
400
30
90
180
18
EGS 20
24
50/125
600
30
90
180
26
EGS 20/S
24
50/125
600
30
90
180
31
EGG 20
24
50/125
600
50
120
200
47
EGS 30
36
70/170
800
50
120
200
61
ZGS 10
12
28/75
400
30
50
180
14
ZGS 20
24
50/125
600
30
50
180
26
ZGG 20
24
50/125
600
50
120
200
46
ZGS 30
36
70/170
800
50
120
200
60