High Voltage Instrument Transformers
High-voltage distribution grids form the backbone of the electricity supply system,
transmitting electricity over large distances.
Zelisko transformers for high-voltage applications are completely maintenance-free and are available in dry-type and gas-insulated versions. In addition, Zelisko’s HNP transformers act as phase protection transformers for stator ground fault protection and power transformers. The company’s high-voltage-carrying primary winding is designed as a two-pole winding and cast using a special vacuum pressure process.
Current Transformer
For GIS
VIS WI - Series
Current Transformers Upto 800 kV
- Construction: highly permeable toroidal cores, with symmetrical
winding – foil insulated or in a casted design available
- dimensions according to customer specification
- Conformity to relevant international standards (DIN VDE 0414; IEC
61869-2; ANSI C57.13 etc.)
- For MV-applications up to 52 kV and HV-applications up to 800 kV
Max. Rated Primary current : 10…4000A
Rated Secondary Current : 1 A; 5 A
Standard : IEC 61869-0 (other standards on request).
RING-CORE
TYPE CT
GAR, RK - Series
Indoor Current Transformers - Ring Core
Cable Type Current Transformers Ring-Core. These current
transformers are maintenance-free low-voltage transformers
for indoor application. They comply with various national
and international standards (IEC 61869-2, VDE 0414, ANSI,
GOST etc.). Ring-Core Type: e.g. GAR3, GAR0.5 and RK with Cast Resin. Our ring-core type current transformers can be delivered with
verification in legal metrology for metering purpose.
Max. Rated Primary current : 30A – 10000 A (GAR), 20A – 4000 A (RK)
Rated Secondary Current : 1 A; 5 A
Insulation level : 0.72 / 1.2 kV
Standard : IEC 61869-2, VDE 0414, ANSI,GOST
Ring Core Current Transformer for Gas Insulated Switchgears
VIS WI - Series
Current Transformers Upto 800 kV
These Ring Core Current Transformers were specially developed for demanding use in gas-insulated high-voltage switchgear. The increased requirements on temperature and chemical resistance were taken into account.
- Conformity to relevant international standards (DIN VDE 0414; IEC 61869-2; ANSI C57.13 etc.)
- For MV-applications up to 52 kV and HV-applications up to 800kV
Max. Rated Primary current : 10…4000A
Rated Secondary Current : 1 A; 5 A
Standard : IEC 61869-0 (other standards on request).
