Overview
The JDZW32-10R is a single-phase outdoor voltage transformer rated for 10kV medium-voltage distribution systems. It features epoxy resin cast insulation, providing robust dielectric strength and environmental resistance for reliable outdoor operation.
With dual secondary windings and accuracy classes of 0.2 (metering) and 0.5 (protection), the JDZW32-10R supports both precision metering and protection relay applications. It complies with standard insulation levels of 12/40/75kV and delivers outputs of 100V for metering and 100/200/220V for auxiliary power supply, making it suitable for substations, industrial facilities, and outdoor distribution networks requiring maintenance-free performance.
Key Ratings Snapshot
| Parameter | Rating |
|---|---|
| Primary Voltage | 10 kV |
| Secondary Voltages | 100 V (1a-1b), 100/200/220 V (2a-2b) |
| Accuracy Class | 0.2 / 0.5 |
| Rated Output (Total) | 750 VA max |
| Rated Power (Winding 2) | 500 VA |
| Insulation Level | 12/40/75 kV |
| System Frequency | 50 Hz |
| Phase Configuration | Single-phase |
| Installation Type | Outdoor |
| Insulation Material | Epoxy resin cast |
| Weight | 27.2 kg |
| Application Standard | IEC 61869-3 |
Construction
The JDZW32-10R features a fully cast-resin construction, where the core and windings are encapsulated in high-grade epoxy resin under vacuum conditions. This process eliminates air voids and ensures uniform insulation, providing excellent resistance to moisture, pollution, and ultraviolet radiation. The solid, monolithic structure requires no maintenance and offers high mechanical strength and thermal stability. The outdoor-rated housing includes integrated mounting brackets and terminal boxes with IP54 protection, ensuring long-term reliability in harsh environmental conditions.
Technical Parameters
Service 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
- Connection: Single-phase with dual secondary windings
- Maintenance: Minimal maintenance required (epoxy resin design)
Technical Parameters
The JDZW32-10R is an outdoor epoxy resin cast voltage transformer designed for 10kV systems. It features a rated primary voltage of 10kV, epoxy resin insulation, and operates within an ambient temperature range of -5°C to +40°C at altitudes up to 1000m. The unit complies with GB20840.2-2014 and IEC61869-2:2012 standards.
Voltage Transformer Data
| Rated
Voltage |
Accuracy class and Rated output (VA) | Max.
output |
||||
|---|---|---|---|---|---|---|
| 1a-1b (Metering or Monitoring) | 2a-2b (Power supply) | |||||
| Output
voltage |
Accuracy
class |
Rated
output (VA) |
Output
voltage (V) |
Rated
output (VA) |
||
| 10kV | 100V | 0.2/0.5 | 10/60 | 100/200/220 | 500 | 750 |
Installation & Wiring
Installation Diagram
The JDZW32-10R is designed for outdoor installation on a flat, stable surface with the base footprint measuring 180 x 230 x 50mm. Mount using the provided holes (2-M10 and 2-M6) in a V-shaped insulator arrangement. Ensure adequate clearance and ventilation around the unit when installed in switchgear or substations.
Wiring Diagram
Primary terminals A and B connect directly to the system voltage. The transformer features dual secondary windings: terminals 1a-1b provide a dedicated 100V output for metering and monitoring circuits, while terminals 2a-2b deliver 100/200/220V for auxiliary power supply applications. Each secondary circuit operates independently to enhance system reliability. Always ensure the secondary circuits are properly grounded and verify the voltage ratio matches system requirements before commissioning.
Selection & FAQs
Selection Guide
- Select for 10kV system voltage with 12/40/75kV insulation level.
- Choose accuracy class 0.2 for high-precision metering or 0.5 for standard metering applications.
- Specify secondary output: 100V for metering and monitoring, or 100/200/220V for auxiliary power supply.
- Select rated output based on burden: 10VA or 60VA for metering circuits, 500VA for power supply loads.
- Confirm system frequency (50Hz or 60Hz) and outdoor installation environment during specification.
Frequently Asked Questions
Q1: What is the secondary output voltage for metering?
The metering secondary winding outputs 100V. It supports 0.2 or 0.5 accuracy classes for monitoring. Contact us to confirm specific rated output VA requirements.
Q2: Can this voltage transformer operate at high altitudes?
Standard models are rated for altitudes up to 1000m. For installations above 1000m, custom design adjustments are required. Please provide your exact site altitude for factory evaluation.
Q3: Which international standards does this 10kV VT comply with?
The JDZW32-10R complies with IEC61869-2:2012 and GB20840.2-2014 standards. It features epoxy resin insulation suitable for outdoor 10kV systems. Request the full type test report for project submission.
Q4: How do I order a unit for a 60Hz power system?
This transformer supports both 50Hz and 60Hz frequencies. Specify your required system frequency and ambient temperature during the inquiry phase. Our engineering team will verify the final design parameters.
Q5: What is the configuration of the secondary windings?
It features a single-phase design with dual secondary windings. Winding 1a-1b is for metering, while 2a-2b provides power supply. Confirm your exact VA burden requirements with our sales team.
Q6: Is the JDZW32-10R suitable for outdoor switchgear applications?
Yes, it is specifically designed for outdoor switchgear, substations, and distribution points. The epoxy resin cast insulation provides reliable performance in ambient temperatures from -5°C to +40°C.
Q7: Why choose epoxy resin cast insulation for outdoor voltage transformers?
Epoxy resin offers excellent weather resistance and requires minimal maintenance. It ensures long-term dielectric strength for outdoor 10kV installations. Contact us for detailed material specification sheets.