JDCF JDC5-220kV Series Voltage Transformer

Our JDCF/JDC5-220 voltage transformers feature single-phase porcelain insulation with limited-position sealing for reliable 220kV system protection.

• Insulation levels up to 252/460/1050kV; accuracy Class 0.2/0.5(3P)/3P.

• Thermal limit output of 2000VA; creepage distance up to 7560mm for anti-pollution performance.

• Low magnetic flux density ensures strong anti-ferroresonance capability with low partial discharge.

• Fast delivery, reliable quality, and extensive project experience.

Product Overview

This series of voltage transformers includes models such as JDCF-60W2, JDCF-66W2 (JDCF-72.5W2), JDCF-110W2 (JDCF-126W2), JDCF-120W2 (JDCF-123W2), JDCF-132W2, and JDCF-138W2 (JDCF-145W2). They are designed for electrical measurement and relay protection in 60-145kV, 50-60Hz power systems. The products comply with the requirements of the National Standard GB1207 "Electromagnetic Voltage Transformers" and the International Electrotechnical Commission Standard IEC 60044-2 "Instrument Transformers - Part 2: Inductive Voltage Transformers".

This series of voltage transformers can be supplied as five-coil products upon customer request.

Technical Specifications

Model	JDCF-60W2 (JDCF-72.5W2) JDCF-66W2	JDCF-110W2(JDCF-126W2) JDCF-120W2(JDCF-123W2)	JDCF-132W2 JDCF-138W2 (JDCF-145W2)
Rated Voltage Ratio (kV)	60/ √3/0,11/ √3/0,11 √3/0,11/3, 66/ √3/0,1/ √3/0,1/ √3/1,1/3	110/ √3/0,1/ √3/0,1 √3/0,1 120/ √3/0,11/ √3/0,11/ √3/0,11	132/ √3/0,11/ √3/0,11 √3/0,11 138/ √3/0,11/ √3/0,11/ √3/0,11
Rated Frequency (Hz)	50~60	50~60	50~60
Rated Insulation Level (kV)	72.5/140/325	126/230/550	145/275/650
Accuracy Class Combination	0.2/0.5(3P)/3P(6P)	0.2/0.5(3P)/3P	0.2/0.5(3P)/3P
Rated Output (VA)	75/100/100	100/200/300	100/200/300
Thermal Limit Output (VA)	1000	2000	2000
Creepage Distance (mm)	2700	3780	4350
Flashover Distance (mm)	800	1000	1200
Overall Dimensions (mm)	700x700x1630	700x700x1830	700x700x2080
Mounting Hole Dimensions (mm)	4xφ18	4xφ18	4xφ18
Mounting Dimensions (mm)	410x410	410x410	410x410
Oil Weight & Total Weight (kg)	110/610	140/700	180/810

Product Features

1. Limited-position sealing design ensures all sealing components are not exposed to the atmosphere, providing superior sealing performance and extended service life.

2. Cast-on-flange porcelain bushing delivers excellent overall mechanical strength.

3. Stable insulation performance, low partial discharge, and low dielectric loss.

4. Low magnetic flux density ensures strong resistance to ferroresonance.

5. High-performance core with low losses, excellent excitation characteristics, and a wide load range.

Model Designation Breakdown

J: Voltage Transformer

D: Single-phase

C: Porcelain Insulation

F: For Metering and Protection

-60W2, -66W2, -110W2, etc.: Special Design / Structure Code

Numerical portion (e.g., 60, 66, 110): Rated Voltage (kV)

W: Anti-pollution Type

2: Design Sequence Number or Special Environment Code

Model in parentheses (e.g., JDCF-72.5W2): Equivalent alternative model (typically indicating a model corresponding to a different Highest Voltage for Equipment).

Hot Tags: jdcf jdc5-220kv series voltage transformer, China jdcf jdc5-220kv series voltage transformer manufacturers, suppliers, factory, JDC5 JCC5 66kV Series Voltage Transformer, JDCF 110 Series Voltage Transformer, JDCF 66W Series 72 5kV Voltage Transformer, JDCF JDC5 220kV Series Voltage Transformer, TYD35 Series 35 220kV Multi Voltage Capacitive Voltage Transformer, voltage transformer vt or pt