Product Overview
The JSZW2-10W voltage transformer is an outdoor epoxy resin cast type measurement device designed for 10kV medium-voltage distribution systems. This three-phase voltage transformer features advanced epoxy resin insulation technology, providing excellent weather resistance and reliable operation in harsh outdoor environments.
The JSZW2-10W delivers precise voltage measurement for protection and metering applications with multiple accuracy classes (0.2, 0.5, 1) and rated outputs (60-240VA) available. The epoxy resin cast construction ensures maintenance-free operation while providing superior insulation performance with 7.2/32/60kV insulation level. Compact design with 75kg weight simplifies installation and reduces structural support requirements.
Product Display
Application Position
The JSZW2-10W is installed in outdoor switchgear, substations, and distribution networks where reliable voltage measurement is required. The epoxy resin insulation provides excellent moisture resistance and UV protection for long-term outdoor operation. The three-phase design with star-connected primary and secondary windings ensures balanced voltage measurement across all phases.
Main Applications
- 10kV outdoor distribution networks
- Substations requiring voltage measurement
- Industrial facilities with medium-voltage supply
- Protection relay voltage input
- Power quality monitoring and metering
- Ground fault detection applications
Application Case Studies
Application Scenario 1: Substation Voltage Measurement
Utilities deploy the JSZW2-10W epoxy resin voltage transformer in 10kV substations for protection relay input and energy metering. The three-phase design provides balanced voltage signals across all phases, while the epoxy resin insulation ensures reliable operation in outdoor environments without maintenance requirements.
Application Scenario 2: Industrial Medium-Voltage Metering
Industrial facilities with 10kV incoming supply require accurate voltage measurement for power quality monitoring and protection coordination. The JSZW2-10W offers multiple accuracy classes (0.2, 0.5, 1) to meet different measurement requirements, with rated outputs up to 240VA for various burden conditions.
Application Fit
Suitable For
- Outdoor 10kV voltage measurement
- Substations with protection relay requirements
- Industrial facilities with medium-voltage supply
- Power quality monitoring applications
- Ground fault detection systems
- Environments requiring maintenance-free operation
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 oil-immersed design for specific insulation requirements
Installation Conditions
- Installation position: Outdoor switchgear, substations, or distribution points
- Ambient temperature: -5°C to +40°C
- Altitude: ≤ 1000m (standard), higher altitude available on request
- Insulation: Epoxy resin cast
- Frequency: 50Hz or 60Hz
- Grounding: Connect neutral terminal per local electrical codes
- Maintenance: Minimal maintenance required (epoxy resin design)
Technical Parameters
The JSZW2-10W is an outdoor epoxy resin cast voltage transformer for 10kV systems. Operating temperature -5°C to +40°C, compliant with GB20840.3-2013 and IEC61869-3:2011. Features epoxy resin insulation, three-phase design, and multiple accuracy classes.
VT Data – Standard
| Rated Voltage Ratio (kV) |
Accuracy Class |
Rated Output (VA) |
Max Output (VA) |
Insulation Level (kV) |
|---|---|---|---|---|
| 10000/√3 : 100/√3 : 100/3 | 0.2 | 60 | 600 | 7.2/32/60 |
| 0.5 | 150 | |||
| 1 | 240 |
Installation
Dimension Reference
| View | Key Dimensions |
Application Note |
|---|---|---|
| Front View | Height 745mm; Width 415mm | Three insulators with 170±5mm spacing |
| Side View | Depth 270mm | Mounting holes 13x18mm |
| Top View | Length 610mm; Width 245mm | Three HV terminals and terminal block |
Weight: Approximately 75kg
Wiring Diagram
Installation Guidelines
- Install in outdoor switchgear or substation with adequate ventilation
- Connect primary terminals A, B, C to three-phase system
- Connect neutral terminal N to system ground
- Secondary terminals provide voltage output to meters and protection devices
- Ensure proper grounding of secondary circuit neutral point
- Verify voltage ratio matches system requirements before commissioning
- Check insulation resistance before energizing
Epoxy Resin Features
The JSZW2-10W incorporates advanced epoxy resin technology including:
- Excellent moisture resistance for outdoor operation
- UV protection for long-term weather exposure
- Superior insulation performance with 7.2/32/60kV level
- Maintenance-free construction eliminating periodic inspection
Standards
The JSZW2-10W epoxy resin voltage transformer complies with GB20840.3-2013 and IEC61869-3:2011 for voltage transformers, ensuring compatibility with both Chinese and international standards for medium-voltage measurement applications.
Selection Guide
Select by system voltage: JSZW2-10W is designed for 10kV systems with 7.2/32/60kV insulation level.
Select by accuracy class: Use 0.2 for high-precision metering, 0.5 for standard metering, or 1 for general measurement.
Select by rated output: Choose rated output (60-240VA) based on connected burden requirements.
Ordering Information
When ordering the JSZW2-10W epoxy resin voltage transformer, please specify:
- Model: JSZW2-10W
- System voltage: 10kV
- Accuracy class: 0.2, 0.5, or 1
- Rated output: 60, 150, or 240 VA
- Frequency: 50Hz or 60Hz
- Installation type: Outdoor
- Quantity
FAQs