JDZ10 Voltage Transformer
Request a Quote
Enter the quantity you need and add to your quote list for pricing inquiries.
Product Details
JDZ10 Voltage Transforme
1. Product Overview
JDZ10 voltage transformer is a high-voltage primary component widely used in medium voltage switchgear, ring main units, metering panels and transformer cabinets. It is designed to step down high primary voltage to a standard low secondary voltage signal for voltage measurement, energy metering, protection and system monitoring.
This potential transformer adopts epoxy resin cast insulation structure, which provides high mechanical strength, reliable insulation performance and good resistance to moisture, dust and arc. It is suitable for 10kV medium voltage distribution systems and can be used together with voltmeters, energy meters, protection relays and control devices.
2. Main Features
- High voltage potential transformer for 10kV medium voltage systems
- Epoxy resin cast insulation body
- Compact vertical structure for switchgear installation
- Low partial discharge and reliable electric field distribution
- Used for voltage measurement, metering and protection
- Secondary voltage output complies with international standard requirements
- Compatible with voltmeters, energy meters, relays and monitoring systems
- Suitable for indoor medium voltage switchgear and metering cubicles
3. Technical Specifications
| Item | Typical Specification |
| Product Type | Voltage Transformer / Potential Transformer |
| Model | JDZ10 |
| Rated Voltage | 10kV |
| Rated Frequency | 50Hz / 60Hz |
| Secondary Voltage | Customized as per project & IEC standard |
| Accuracy Class | 0.2, 0.2S, 0.5, 0.5S, 3P, 6P |
| Insulation Material | Epoxy Resin |
| Installation Mode | Fixed mounting inside switchgear |
| Core Function | Voltage measurement, energy metering, relay protection, grid monitoring |
| Applicable Environment | Indoor dry & ventilated power distribution room |
4. Structure Description
| Part Name | Function Introduction |
| Primary Terminal | Connect with high voltage busbar or primary conductor |
| Epoxy Insulation Body | Bear high voltage insulation and mechanical anti-collision protection |
| Silicon Steel Iron Core | Form closed magnetic circuit for voltage conversion |
| Primary Winding | Bear 10kV high voltage input |
| Secondary Winding | Output reduced standard low voltage signal |
| Internal Shield Layer | Optimize electric field distribution, reduce partial discharge value |
| Secondary Terminal Block | External wiring port for meters, protection relays and monitoring equipment |
| Metal Mounting Base | Fix the whole PT on cabinet mounting plate, reserved grounding point |
5. Working Principle
The JDZ10 voltage transformer operates based on electromagnetic induction law. When rated high voltage is applied to the primary winding, alternating magnetic flux will be generated inside the iron core. The magnetic flux cuts the secondary winding and induces proportional low secondary voltage.
The standardized secondary voltage signal can be transmitted to voltmeters, energy meters, protection relays and intelligent monitoring devices. It realizes electrical isolation between high-voltage primary grid and low-voltage secondary control equipment, and converts dangerous high voltage into safe measurable signal for metering and protection control.
6. Application Scope
JDZ10 voltage transformer is widely matched with the following power equipment:
10kV medium voltage withdrawable switchgear
Ring main unit (RMU)
High voltage metering cabinet
Transformer inlet & outlet cabinet
Busbar protection cubicle
Power distribution automation panel
Industrial factory central power station
Commercial complex medium voltage power supply system
Photovoltaic & energy storage medium voltage station
Municipal power grid transformation projects
7. Installation Instructions
- Check product appearance before installation, confirm no cracks, scratches or damage on epoxy shell. Verify model, rated voltage, accuracy class and secondary voltage match construction drawings.
- Reserve enough safety clearance inside the cabinet, keep isolation distance between PT and other live components to avoid insulation breakdown risk.
- Avoid strong extrusion, impact or bending force on the transformer body during busbar assembly.
- Fasten primary and secondary wiring terminals tightly, mark wire numbers clearly in accordance with factory wiring diagram.
- The metal mounting base of JDZ10 must be connected to cabinet PE grounding wire reliably.
- Complete insulation resistance test, polarity test and voltage transformation ratio test before system power transmission.
8. Safety Warnings
- All installation, commissioning and maintenance work must be completed by certified professional electrical technicians.
- Strictly prohibit disconnection of secondary circuit while primary side is energized, open-circuit secondary will produce dangerous overvoltage, leading to equipment breakdown and personal electric shock injury.
- Cut off all upstream power supply, implement power cut, test and ground locking operation before overhauling the voltage transformer.
- Do not place conductive metal scraps near secondary terminals during normal operation.
- Stop operation immediately if abnormal noise, burnt odor or surface discharge appears, cut off power supply and carry out full inspection.
- Keep product nameplate and original factory wiring diagram properly for later maintenance reference.
9. Ordering Information
Please provide the below technical parameters when placing orders:
- Complete model: JDZ10
- Rated primary voltage (10kV standard)
- Required secondary voltage specification
- Target accuracy class (metering type / protection type)
- Cabinet installation space limit (if customized size required)
- Total order quantity
- Applicable standard (default IEC standard for overseas market)
10. Packing & Export Note
Each JDZ10 voltage transformer is wrapped with shockproof foam independently, then loaded into thick export cartons. All cartons are reinforced with binding tape to prevent collision, vibration and damp damage during sea, land and air transportation. Neutral English labels without brand/logo are available to meet overseas customs clearance and warehouse storage requirements.
