10/20kV Epoxy-Cast Potential Transformer (Power Source for Circuit Breaker Operation and Lighting)

Featured Products

10/20kV Epoxy-Cast Potential Transformer (Power Source for Circuit Breaker Operation and Lighting) - CIC

CIC | CHALLENGE INDUSTRIAL CO., LTD., since 1974, is a global supplier of 10/20kV Epoxy-Cast Potential Transformer (Power Source for Circuit Breaker Operation and Lighting). CIC specializes in the manufacture of instrument transformers, distribution transformers, detuned reactors, epoxy insulators, electronic energy meters, etc. Also provided or distributed are a wide range of other electrical or electronic apparatus.

Certified to ISO 9001, CIC ensures superior quality of its goods through such advanced technologies and materials as Swiss-manufactured equipment (for the production of resin insulators), Araldite® epoxy resin, and technology transferred from Messwandler-Bau (MWB) of Germany.

Backed by 44 years of experience, CIC offers custom-made products, OEM/ODM services, and technical support tailored to the needs of its discerning clientele.


10/20kV Epoxy-Cast Potential Transformer (Power Source for Circuit Breaker Operation and Lighting)

EPF-20DZ

1-phase potential transformer for the measuring and monitoring of the voltage signal. Max continuous output: 4000VA. Combination with 1 or 2 smaller-capacity potential transformers forms a 3-phase potential transformer. Cast in self-extinguishing Araldite® epoxy resin.

Medium-Voltage Potential Transformer

About the Product

Single-phase indoor-use potential transformer EPF-20DZ, intended for a 12 or 24 kV power system, is designed for the measuring and monitoring of the voltage signal.

Due to its continuous output capacity of 4000VA (max.), this potential transformer can be used in a small substation or a switchgear panel as a power source for circuit breaker operation and lighting equipment. This setup helps to conserve space and reduce cost.

In addition, the EPF-20DZ potential transformer can be connected to one or two smaller-capacity potential transformers to form a three-phase potential transformer (3ϕ PT). This can be done via a V-V or Y-Y connection.

Cast in self-extinguishing Araldite® epoxy resin, the EPF-20DZ potential transformer is characterized by superior insulation and excellent safety.

Product Features

  • Standard: IEC or IEEE*
  • System Voltage: 12 or 24 kV
  • Frequency: 50 / 60 Hz
  • Power source for circuit breaker operation and lighting
  • Option: Forming a three-phase PT through connection with one or two smaller-capacity potential transformers (via a V-V or Y-Y connection)
  • No risk of oil leakage
  • Self-extinguishing
  • Includes a fuse on the secondary side

Selection Table

Model

Primary
Voltage
(kV)
Secondary Voltage
(V)

Burden / Accuracy

AC / BIL
(kV)

Thermal Burden
(VA)

Creepage
(mm)

EPF-20DZ

22 or 11

110

500VA/1.0

50/125

4000

531

22

220-110**

4000-2000

* Other standards and specifications available. 
** This specification comes with an added tap in the secondary winding so as to offer two voltage ratios (22-11 kV).


Related Products

Download Materials