Product Overview
The JDZC6-10Q outdoor epoxy cast-resin voltage transformer is a medium-voltage voltage transformer designed for 12kV outdoor distribution systems. It converts a 10000V primary voltage into standardized secondary voltage outputs for metering, monitoring and auxiliary power supply circuits.
This model adopts an outdoor epoxy cast-resin insulation structure. It provides a 100V secondary output for metering or monitoring circuits and a 220V secondary output for power supply applications. The product is suitable for outdoor metering equipment, distribution systems and medium-voltage installations requiring compact resin-insulated voltage transformation.
Application Position
The JDZC6-10Q voltage transformer is normally installed in outdoor medium-voltage distribution equipment, metering units or auxiliary power supply circuits. It provides secondary voltage signals to energy meters, monitoring devices and low-voltage auxiliary loads according to the approved wiring design.
Main Applications
- 12kV outdoor medium-voltage distribution systems
- Outdoor voltage metering and voltage monitoring circuits
- Auxiliary power supply from medium-voltage primary side
- Outdoor metering units and distribution equipment
- Voltage signal supply for meters or monitoring devices
- Applications requiring epoxy cast-resin outdoor voltage transformer construction
Key Specifications
| Item | Specification |
|---|---|
| Model | JDZC6-10Q |
| Product type | Outdoor voltage transformer / potential transformer |
| Insulation structure | Outdoor epoxy cast-resin insulation |
| Installation | Outdoor |
| Rated voltage class | 12kV |
| Rated primary voltage | 10000V |
| Secondary output | 100V for metering or monitoring; 220V for power supply |
| Rated insulation level | 12/40/75kV |
| Rated frequency | 50Hz or 60Hz |
| Ambient temperature | -5°C to +40°C |
| Main function | Voltage metering, monitoring and auxiliary power supply |
Product Display

Application Fit
Suitable For
- Outdoor 12kV medium-voltage distribution systems
- Outdoor metering applications requiring a 100V secondary voltage output
- Auxiliary power circuits requiring a 220V secondary output
- Outdoor installations requiring epoxy cast-resin insulation
- Projects requiring compact outdoor voltage transformer construction
Not Recommended For
- Indoor compact switchgear where indoor dry-type PTs are specified
- Systems above the rated insulation level of 12/40/75kV
- Applications requiring oil-immersed voltage transformer construction
- Special secondary voltages or accuracy classes without technical confirmation
Technical Structure
| Component | Description |
|---|---|
| Primary winding | Connected between A and B primary terminals for 10000V rated primary voltage |
| Metering / monitoring secondary winding | Provides 100V secondary output through 2a-2b terminals |
| Power secondary winding | Provides 220V secondary output through 1a-1b terminals |
| Insulation body | Outdoor epoxy cast-resin insulation structure |
| Primary terminals | Outdoor high-voltage terminals with creepage structure |
| Mounting base | Metal base with fixing holes for outdoor installation |
Model Designation
The JDZC6-10Q model code can be interpreted as follows:
| Code | Meaning |
|---|---|
| J | Voltage transformer |
| D | Single-phase voltage transformer structure |
| Z | Epoxy cast-resin insulation |
| C | Outdoor / structural design code according to manufacturer specification |
| 6 | Design series code |
| 10 | Model voltage code corresponding to 12kV equipment class |
| Q | Product variant code according to manufacturer specification |
Technical Data
The following technical data is based on the JDZC6-10Q product sample. The page uses international medium-voltage class expression for export applications. The voltage ratio values are retained according to the actual primary and secondary winding ratings.
| Type | Voltage
Class |
Rated
Primary Voltage |
Metering /
Monitoring Output |
Power
Output |
Accuracy
Class |
Rated
Capacity |
Max.
Output |
Rated
Insulation Level |
|---|---|---|---|---|---|---|---|---|
| JDZC6-10Q | 12kV | 10000V | 100V, terminals 2a-2b | 220V, terminals 1a-1b | 0.2 / 0.5 | 30/50VA for metering
or monitoring; 500VA for power output |
1000VA | 12/40/75kV |
Technical notes:
- Rated output and its corresponding accuracy class are supplied as one selected combination only.
- If the required parameters exceed the listed range, they should be confirmed by agreement between manufacturer and purchaser.
- Rated frequency: 50Hz or 60Hz.
- Ambient temperature: -5°C to +40°C.
Installation and Dimensions

The JDZC6-10Q should be installed according to the approved outline drawing, wiring diagram and outdoor installation layout. The product has two primary terminals, a cast-resin outdoor insulation body, a metal mounting base and separate secondary outputs for power and metering/monitoring circuits.
Overall Dimension Reference
| Item | Dimension / Specification |
|---|---|
| Front width | 285 mm |
| Upper terminal spacing | 165 mm |
| Body upper width | 283 mm |
| Body lower width | 200 mm |
| Base width | 168 mm |
| Base depth | 120 mm |
| Overall height | 371.1 mm |
| Side body height reference | 198.5 mm |
| Mounting holes | 4-M8 |
| Approximate weight | 32 kg |
Terminal and Wiring Notes
- Primary terminals A and B are connected to the 10000V primary circuit.
- Terminals 1a-1b provide the power output circuit, marked as 100V / 200V / 220V according to wiring requirement.
- Terminals 2a-2b provide the 100V metering or monitoring output circuit.
- Secondary wiring must follow the approved wiring diagram and terminal markings.
- Grounding and insulation clearance should be checked before energizing.
Compliance and Testing
The JDZC6-10Q series is designed for outdoor medium-voltage voltage transformer applications. The provided product sample refers to GB20840.2-2014 and IEC61869-2:2012 in the Chinese heading, while the English sample text also references GB1207-2006 and IEC60044-2:2003. Final applicable standards should be confirmed according to the project technical agreement.
Typical Routine Tests
- Visual inspection and nameplate verification
- Ratio verification
- Polarity and terminal marking check
- Accuracy test at specified rated burden
- Power-frequency withstand voltage test
- Insulation resistance test
- Secondary winding verification
- Outdoor insulation and creepage inspection
Engineering Notes
- Select JDZC6-10Q for 12kV outdoor systems requiring both 100V signal output and 220V auxiliary power output.
- Confirm whether the 220V power output is used for auxiliary supply and whether the 100V output is used for metering or monitoring.
- Do not exceed the rated capacity of each secondary circuit.
- Confirm outdoor installation clearance, creepage distance and grounding before commissioning.
- For special secondary voltages, special accuracy classes or special environmental conditions, technical confirmation is required.
Selection Guide
How to select JDZC6-10Q for 12kV systems
Select JDZC6-10Q when the project requires an outdoor epoxy cast-resin voltage transformer for a 12kV medium-voltage system with 10000V primary voltage and secondary outputs for both metering and power supply circuits.
How to confirm the secondary output requirement
Use the 100V secondary output for metering or monitoring circuits. Use the 220V secondary output for auxiliary power supply when the connected load and rated capacity match the transformer specification.
How to select accuracy class and capacity
Use accuracy class 0.2 or 0.5 for metering or monitoring circuits. Confirm the rated capacity of 30/50VA for the 100V output and 500VA for the power output according to the connected secondary burden.
How to confirm outdoor installation suitability
Check rated insulation level, creepage distance, mounting dimensions, grounding arrangement and environmental conditions before outdoor installation.
Ordering Information
Please provide the following information when ordering or requesting a quotation:
- Product model: JDZC6-10Q
- Rated primary voltage and secondary output requirements
- Metering or monitoring output requirement: 100V
- Power output requirement: 220V or specified voltage
- Required accuracy class and rated capacity
- Rated insulation level
- Rated frequency: 50Hz or 60Hz
- Outdoor installation conditions
- Applicable standard or project specification
- Quantity
- Special requirements for drawings, test reports, certificates, nameplate language, packaging or shipping