Product Overview

The JDZ16-35R voltage transformer is an indoor epoxy resin cast single-phase measurement device designed for 35kV medium-voltage distribution systems. This advanced voltage transformer features epoxy resin cast insulation technology, providing excellent dielectric strength and maintenance-free operation for reliable performance in indoor environments.

The JDZ16-35R delivers precise voltage measurement for energy metering, voltage monitoring, and relay protection applications with multiple voltage ratios (35/0.1kV, 35/0.1/0.1kV, 35/0.1/0.22kV) and flexible accuracy classes (0.2, 0.5). The epoxy resin cast construction ensures superior insulation performance while providing up to 1000VA maximum output capacity. Compact design with 97kg weight simplifies installation and reduces structural support requirements.

Product Display

JDZ16-35R Product Display
JDZ16-35R Product Display - Indoor Epoxy Cast-Resin Voltage Transformer
JDZ16-35R Product Display - Reliable Voltage Measurement

Application Position

The JDZ16-35R is installed in indoor switchgear, substations, and distribution networks where reliable single-phase voltage measurement is required. The epoxy resin insulation provides excellent moisture resistance and UV protection for long-term indoor operation. Multiple voltage ratios accommodate various measurement and protection system requirements.

Main Applications

35kV indoor distribution networks
Substations requiring voltage measurement
Industrial facilities with medium-voltage supply
Energy metering applications
Voltage monitoring and relay protection
Indoor power distribution systems

Application Case Studies

Application Scenario 1: Substation Voltage Measurement
Utilities deploy the JDZ16-35R epoxy resin voltage transformer in 35kV indoor substations for energy metering and relay protection. The 35/0.1kV voltage ratio provides accurate voltage signals for protection relays, while the epoxy resin insulation ensures reliable performance in indoor environments with 40.5/95/200kV insulation level and maintenance-free operation.

Application Scenario 2: Industrial Medium-Voltage Metering
Industrial facilities with 35kV incoming supply require accurate voltage measurement for energy management and protection coordination. The JDZ16-35R offers multiple accuracy classes (0.2, 0.5) and voltage ratios (35/0.1kV, 35/0.1/0.1kV, 35/0.1/0.22kV) to meet different measurement requirements, with up to 1000VA maximum output capacity for various burden conditions.

Application Fit

Suitable For

Indoor 35kV voltage measurement
Substations with energy metering requirements
Industrial facilities with medium-voltage supply
Voltage monitoring applications
Relay protection systems
Environments requiring maintenance-free operation

Not Recommended For

Outdoor installation applications (use outdoor-rated models)
Current measurement applications (use CT instead)
High-voltage systems above 40.5kV (use higher voltage class models)
Applications requiring three-phase measurement in single unit

Installation Conditions

Installation position: Indoor switchgear, substations, or distribution points
Ambient temperature: -25°C to +40°C
Altitude: ≤ 1000m (standard), higher altitude available on request
Insulation: Epoxy resin cast
Frequency: 50Hz or 60Hz
Connection: Single-phase
Maintenance: Minimal maintenance required (epoxy resin design)

Technical Parameters

The JDZ16-35R is an indoor epoxy resin cast single-phase voltage transformer for 35kV systems. Operating temperature -25°C to +40°C, compliant with GB20840.3-2013 and IEC61869-3:2011 standards.

VT Data – Single Secondary Winding

Rated Voltage (kV)	Accuracy Class & Rated Output (VA)	Max Output (VA)	Insulation Level (kV)
35/0.1	0.2: 40 0.5: 100	600	40.5/95/200

VT Data – Dual Secondary Winding

Rated Voltage (kV)	Accuracy Class & Rated Output (VA)	Max Output (VA)	Insulation Level (kV)
35/0.1/0.1	0.2/0.5: 30/50 0.2/0.2: 20/20	500	40.5/95/200

VT Data – Secondary with Power Supply

Rated Voltage (kV)	Accuracy Class & Rated Output (VA)	Max Output (VA)	Insulation Level (kV)
35/0.1/0.22	0.2/3: 40/500	1000	40.5/95/200

Installation

Dimension Reference

JDZ16-35R Installation Diagram

View	Key Dimensions	Application Note
Side View	Width 481mm; Height 370mm; Base 502mm	Terminal M31×1.5 on left side
Front View	Width 341mm; Mounting holes 265mm; Height 408mm; Base 275mm	Terminals A and B, nameplate, M10 lifting ring
Top View	Length 602mm; Width 240mm	Terminal box connections

Weight: Approximately 97kg

Wiring Diagram

JDZ16-35R Wiring Diagram

Installation Guidelines

Install in indoor switchgear or substation with adequate ventilation
Connect primary terminals A and B to voltage system
Connect secondary terminals to meters and protection devices
Ensure proper grounding of secondary circuit
Verify voltage ratio matches system requirements before commissioning
Check insulation resistance before energizing

Epoxy Resin Features

The JDZ16-35R incorporates advanced epoxy resin technology including:

Excellent moisture resistance for indoor operation
UV protection for long-term performance
Superior insulation performance with 40.5/95/200kV level
Maintenance-free construction eliminating periodic inspection

Standards

The JDZ16-35R epoxy resin voltage transformer complies with GB20840.3-2013 and IEC61869-3:2011 for voltage transformers, ensuring compatibility with Chinese and international standards for medium-voltage measurement applications.

Selection Guide

Select by system voltage: JDZ16-35R is designed for 35kV systems with 40.5/95/200kV insulation level.

Select by voltage ratio: Choose 35/0.1kV for basic measurement, 35/0.1/0.1kV for dual secondary outputs, or 35/0.1/0.22kV for measurement with power supply.

Select by accuracy class: Use 0.2 for high-precision metering or 0.5 for standard metering.

Select by rated output: Choose rated output (20-500VA) based on connected burden requirements.

Ordering Information

When ordering the JDZ16-35R epoxy resin voltage transformer, please specify:

Model: JDZ16-35R
System voltage: 35kV
Voltage ratio: 35/0.1kV, 35/0.1/0.1kV, or 35/0.1/0.22kV
Accuracy class: 0.2 or 0.5
Rated output: Specify VA value from table
Frequency: 50Hz or 60Hz
Installation type: Indoor
Quantity

FAQs

Epoxy resin cast voltage transformer uses advanced epoxy resin insulation instead of traditional oil or porcelain. This provides excellent moisture resistance, UV protection, and maintenance-free operation for reliable indoor performance in medium-voltage applications.

Multiple voltage ratios (35/0.1kV, 35/0.1/0.1kV, 35/0.1/0.22kV) provide flexibility for different applications. Single secondary (35/0.1kV) is for basic measurement. Dual secondary (35/0.1/0.1kV) provides two independent outputs for metering and protection. Secondary with power supply (35/0.1/0.22kV) provides measurement and auxiliary power.

Two accuracy classes are available: 0.2 for high-precision metering and 0.5 for standard metering. Select based on your measurement accuracy requirements and connected burden.

The epoxy resin design requires minimal maintenance. Periodic visual inspection for physical damage is recommended. No oil maintenance or periodic cleaning is required, reducing operational costs over the service life.

The JDZ16-35R complies with GB20840.3-2013 (Chinese standard) and IEC61869-3:2011 (international standard) for voltage transformers, ensuring compatibility with both domestic and international medium-voltage measurement applications.

Confirm model (JDZ16-35R), system voltage (35kV), voltage ratio (35/0.1kV, 35/0.1/0.1kV, or 35/0.1/0.22kV), accuracy class (0.2 or 0.5), rated output, frequency (50Hz or 60Hz), installation type (indoor), and quantity.

JDZ16-35R Indoor Epoxy Resin Voltage Transformer