Product Overview
The JDZX7-15W(VOY-15) voltage transformer is an outdoor epoxy resin cast single-phase measurement device designed for 15kV 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 harsh outdoor environments.
The JDZX7-15W delivers precise voltage measurement for energy metering, voltage monitoring, and relay protection applications with 0.2/0.5 accuracy classes and 15000/√3 to 100/√3 voltage ratio. The epoxy resin cast construction ensures superior insulation performance while providing 1000VA maximum output capacity. Compact design with 42kg weight simplifies installation and reduces structural support requirements.
Product Display
Application Position
The JDZX7-15W 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. Single-phase design with high insulation level (15/17.5/105kV) ensures safe operation in demanding environments.
Main Applications
- 15kV outdoor distribution networks
- Substations requiring voltage measurement
- Industrial facilities with medium-voltage supply
- Energy metering applications
- Voltage monitoring and relay protection
- Outdoor power distribution systems
Application Case Studies
Application Scenario 1: Substation Voltage Measurement
Utilities deploy the JDZX7-15W epoxy resin voltage transformer in 15kV substations for energy metering and relay protection. The 15000/√3 to 100/√3 voltage ratio provides accurate voltage signals for protection relays, while the epoxy resin insulation ensures reliable performance in outdoor environments with 15/17.5/105kV insulation level and maintenance-free operation.
Application Scenario 2: Industrial Medium-Voltage Metering
Industrial facilities with 15kV incoming supply require accurate voltage measurement for energy management and protection coordination. The JDZX7-15W offers multiple accuracy classes (0.2, 0.5) to meet different measurement requirements, with 1000VA maximum output capacity for various burden conditions and compact 42kg design allowing flexible installation.
Application Fit
Suitable For
- Outdoor 15kV 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
- Indoor-only compact switchgear applications
- Current measurement applications (use CT instead)
- High-voltage systems above 15kV (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
- Maintenance: Minimal maintenance required (epoxy resin design)
Technical Parameters
The JDZX7-15W is an outdoor epoxy resin cast single-phase voltage transformer for 15kV systems. Operating temperature -20°C to +40°C, compliant with GB20840.2-2014 and IEC61869-2:2012 standards.
VT Data
| Rated Voltage (kV) |
Output Voltage (V) |
Accuracy Class & Rated Output (VA) |
Max Output (VA) |
Insulation Level (kV) |
|---|---|---|---|---|
| 15000/√3 | 100/√3 | 0.2: 30 0.5: 75 |
1000 | 15/17.5/105 |
Installation
Dimension Reference
| View | Key Dimensions |
Application Note |
|---|---|---|
| Front View | 300 x 415 x 160mm | Mounting holes 3-Ø22, grounding M8 |
| Side View | 285±2 x 367±3 x 280 x 210mm | Mounting holes 2-M10 and 3-M6 |
| Top View | 365±3 x 254 x 220 x 110 x 50 x 32mm | Nameplate area |
Weight: Approximately 42kg
Wiring Diagram
Installation Guidelines
- Install in outdoor switchgear or substation with adequate ventilation
- Connect primary terminals H1 and H2 to voltage system
- Connect secondary terminals x1 and x2 to meters and protection devices
- Ensure proper grounding of secondary circuit (x2 terminal)
- Verify voltage ratio matches system requirements before commissioning
- Check insulation resistance before energizing
Epoxy Resin Features
The JDZX7-15W incorporates advanced epoxy resin technology including:
- Excellent moisture resistance for outdoor operation
- UV protection for long-term weather exposure
- Superior insulation performance with 15/17.5/105kV level
- Maintenance-free construction eliminating periodic inspection
Standards
The JDZX7-15W 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 system voltage: JDZX7-15W is designed for 15kV systems with 15/17.5/105kV insulation level.
Select by accuracy class: Use 0.2 for high-precision metering or 0.5 for standard metering.
Select by rated output: Choose rated output (30-75VA) based on connected burden requirements.
Ordering Information
When ordering the JDZX7-15W epoxy resin voltage transformer, please specify:
- Model: JDZX7-15W(VOY-15)
- System voltage: 15kV
- Accuracy class: 0.2 or 0.5
- Rated output: 30 or 75 VA
- Frequency: 50Hz or 60Hz
- Installation type: Outdoor
- Quantity