Product Overview
The JDZ(N)2-12W voltage transformer is an outdoor epoxy resin cast single-phase measurement device designed for 10kV medium-voltage distribution systems. This advanced voltage transformer features two model variants: JDZ2-12W for standard voltage measurement and JDZN2-12W with neutral point for comprehensive system monitoring.
The JDZ(N)2-12W delivers precise voltage measurement for energy metering, voltage monitoring, and relay protection applications. The epoxy resin cast construction ensures superior insulation performance with arc resistance, UV resistance, aging resistance, and excellent dielectric strength. Compact design with 29kg weight allows flexible installation in any direction.
Product Display
Application Position
The JDZ(N)2-12W is installed in outdoor 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 outdoor operation. Two model variants accommodate different system configurations and measurement requirements.
Main Applications
- 10kV outdoor distribution networks
- Substations requiring voltage measurement
- Industrial facilities with medium-voltage supply
- Energy metering applications
- Voltage monitoring and relay protection
- Neutral point monitoring systems (JDZN2-12W)
Application Case Studies
Application Scenario 1: Substation Voltage Measurement
Utilities deploy the JDZ2-12W epoxy resin voltage transformer in 10kV substations for energy metering and relay protection. The 10000/100V voltage ratio provides accurate voltage signals for protection relays, while the epoxy resin insulation ensures reliable performance in outdoor environments with 12/42/75kV insulation level.
Application Scenario 2: Industrial Medium-Voltage Metering with Neutral Monitoring
Industrial facilities with 10kV incoming supply require accurate voltage measurement and neutral point monitoring. The JDZN2-12W offers 10000/√3/100/√3/100/3V voltage ratio with neutral point connection, providing comprehensive system monitoring while the epoxy resin design ensures maintenance-free operation in demanding industrial environments.
Application Fit
Suitable For
- Outdoor 10kV voltage measurement
- Substations with energy metering requirements
- Industrial facilities with medium-voltage supply
- Voltage monitoring applications
- Relay protection systems
- Neutral point monitoring systems
Not Recommended For
- Indoor-only compact switchgear applications
- Current measurement applications (use CT instead)
- High-voltage systems above 12kV (use higher voltage class models)
- Applications requiring three-phase measurement in single unit
Installation Conditions
- Installation position: Outdoor switchgear, substations, or distribution points
- Ambient temperature: -20°C to +40°C
- Altitude: ≤ 1000m (standard), higher altitude available on request
- Insulation: Epoxy resin cast
- Frequency: 50Hz or 60Hz
- Connection: Single-phase (JDZ2-12W) or with neutral point (JDZN2-12W)
- Maintenance: Minimal maintenance required (epoxy resin design)
Technical Parameters
The JDZ(N)2-12W is an outdoor epoxy resin cast single-phase voltage transformer for 10kV systems. Operating temperature -20°C to +40°C, compliant with GB20840.2-2014 and IEC61869-2:2012 standards.
VT Data – JDZ2-12W
| Model | Rated Voltage Ratio (V) |
Accuracy Class & Rated Output (VA) |
Max Output (VA) |
Insulation Level (kV) |
|---|---|---|---|---|
| JDZ2-12W | 10000/100 | 0.2: 40 0.5: 80 |
500 | 12/42/75 |
VT Data – JDZN2-12W
| Model | Rated Voltage Ratio (V) |
Accuracy Class & Rated Output (VA) |
Max Output (VA) |
Insulation Level (kV) |
|---|---|---|---|---|
| JDZN2-12W | 10000/√3 : 100/√3 : 100/3 | 0.2: 30 0.5: 50 3(6)P: 100 |
500 | 12/42/75 |
Installation
Dimension Reference
| View | Key Dimensions |
Application Note |
|---|---|---|
| Front View | Height 415±3mm; Width 265±2mm; Base 340±2mm | Two insulators (A and B or A and N) |
| Side View | Ø200mm; Base 286mm | Aluminum nameplate |
| Top View | Width 240mm; Distance 190mm | Mounting holes: 4-M6 (JDZ2) or 6-M6 (JDZN2) |
Weight: Approximately 29kg
Wiring Diagram
Installation Guidelines
- Install in outdoor switchgear or substation with adequate ventilation
- Connect primary terminal A to voltage system
- Connect secondary terminals to meters and protection devices
- For JDZN2-12W, connect neutral terminal N to system ground
- Verify voltage ratio matches system requirements before commissioning
- Check insulation resistance before energizing
Epoxy Resin Features
The JDZ(N)2-12W incorporates advanced epoxy resin technology including:
- Electric arc resistance for enhanced safety
- UV resistance for long-term outdoor operation
- Aging resistance for extended service life
- Long creepage distance for anti-pollution performance
- Low partial discharge for reliable insulation
- Over-voltage resistance for system protection
Standards
The JDZ(N)2-12W epoxy resin voltage transformer complies with GB20840.2-2014 and IEC61869-2:2012 for voltage transformers, ensuring compatibility with Chinese and international standards for medium-voltage measurement applications.
Selection Guide
Select by model: Choose JDZ2-12W for standard voltage measurement or JDZN2-12W for systems requiring neutral point monitoring.
Select by voltage ratio: JDZ2-12W offers 10000/100V ratio, while JDZN2-12W offers 10000/√3/100/√3/100/3V ratio with neutral point.
Select by accuracy class: Use 0.2 for high-precision metering, 0.5 for standard metering, or 3(6)P for protection applications.
Select by rated output: Choose rated output (30-100VA) based on connected burden requirements.
Ordering Information
When ordering the JDZ(N)2-12W epoxy resin voltage transformer, please specify:
- Model: JDZ2-12W or JDZN2-12W
- System voltage: 10kV
- Voltage ratio: 10000/100V or 10000/√3/100/√3/100/3V
- Accuracy class: 0.2, 0.5, or 3(6)P
- Rated output: Specify VA value from table
- Frequency: 50Hz or 60Hz
- Installation type: Outdoor
- Quantity
FAQs