Product Overview
The JDZC1-10 / JDZ-10 indoor semi-enclosed epoxy cast-resin voltage transformer is a medium-voltage voltage transformer for 11kV networks and 12kV switchgear applications. In this product page, JDZC1-10 and JDZ-10 refer to the same product structure, with model naming depending on project documentation, supplier catalog or customer specification.
The product converts 10000V primary voltage into secondary voltage outputs for voltage metering, monitoring, control signal input and auxiliary power supply. It adopts an indoor semi-enclosed epoxy cast-resin structure, with high-voltage primary terminals on the upper side and low-voltage secondary terminals on the base side.
Application Position
The JDZC1-10 / JDZ-10 voltage transformer is normally installed inside an indoor medium-voltage switchgear cabinet or voltage transformer compartment. It provides secondary voltage signals to meters, monitoring devices, protection relays and control equipment.
Main Applications
- 11kV networks and 12kV indoor medium-voltage switchgear
- Voltage metering and voltage monitoring circuits
- Control voltage signal output circuits
- Auxiliary power supply circuits when a power secondary winding is specified
- Compact switchgear compartments requiring a semi-enclosed cast-resin VT
- Indoor distribution systems requiring dry-type voltage transformer insulation
Key Specifications
| Item | Specification |
|---|---|
| Model | JDZC1-10 / JDZ-10 |
| Product type | Indoor voltage transformer / potential transformer |
| Structure | Semi-enclosed type |
| Insulation structure | Indoor epoxy cast-resin insulation |
| Installation | Indoor switchgear installation |
| Application voltage class | 11kV network / 12kV switchgear class |
| Rated primary voltage | 10000V |
| Secondary output | 100V for metering/control; optional 220V auxiliary power output according to configuration |
| Accuracy class | 0.2 / 0.5 / 6P, or according to project specification |
| Rated insulation level | 12/40/75kV |
| Rated frequency | 50Hz or 60Hz |
| Ambient temperature | -5°C to +40°C |
| Typical weight | Approx. 25kg to 27kg according to configuration |
| Standards | GB20840.3-2013, IEC61869-3:2011, or project-specific requirements |
Product Display
Application Fit
Suitable For
- Indoor 11kV networks and 12kV medium-voltage switchgear
- Voltage metering circuits requiring 100V secondary output
- Control and monitoring circuits requiring a compact indoor VT
- Switchgear panels requiring semi-enclosed epoxy cast-resin construction
- Projects where JDZC1-10 or JDZ-10 model naming is specified for the same product structure
Not Recommended For
- Outdoor exposed installation without a suitable enclosure
- Systems above the specified insulation level
- Applications requiring oil-immersed voltage transformer construction
- Projects requiring special secondary outputs or burdens without technical confirmation
Model Notes
| Model Name | Meaning in This Page | Typical Configuration |
|---|---|---|
| JDZC1-10 | Catalog/model name for the semi-enclosed epoxy cast-resin VT | 10000V primary, 100V metering/control output; optional auxiliary power output |
| JDZ-10 | Equivalent product naming used for the same structure | Same product type and application, subject to final drawing and nameplate |
Technical Structure
| Component | Description |
|---|---|
| Core and winding system | Electromagnetic voltage transformation structure for 10000V primary voltage |
| Primary winding | Connected to the medium-voltage side through A and B primary terminals |
| Metering/control winding | Secondary winding providing 100V output for metering, monitoring or control circuits |
| Auxiliary secondary winding | Optional secondary winding for 220V auxiliary output according to configuration |
| Epoxy cast-resin body | Semi-enclosed indoor dry-type insulation structure |
| Primary terminals | Two upper primary terminals with ceramic/epoxy bushing structure |
| Mounting base | Metal base for cabinet installation |
Model Designation
The JDZC1-10 / JDZ-10 model code can be interpreted as follows:
| Code | Meaning |
|---|---|
| J | Voltage transformer |
| D | Single-phase voltage transformer structure |
| Z | Epoxy cast-resin insulation |
| C | Product structure / auxiliary output design code, used in JDZC naming |
| 1 | Design series code, used in JDZC1 naming |
| 10 | Model voltage code for 11kV network / 12kV switchgear class |
Technical Data
The following technical data is organized from the JDZC1-10 / JDZ-10 sample information. The page uses 11kV network / 12kV switchgear wording for export applications, while the actual primary voltage remains listed as 10000V according to the product technical data.
| Configuration | Primary
Voltage |
Secondary
Output |
Accuracy
Class |
Rated
Capacity |
Max.
Output |
Insulation
Level |
|---|---|---|---|---|---|---|
| Metering / protection configuration | 10000V | 100V | 0.2 / 6P | 300VA | 500VA | 12/40/75kV |
| Metering + auxiliary power configuration | 10000V | 100V / 220V | 0.5 / 6P | 80 / 300VA | According to configuration | 12/40/75kV |
Technical notes:
- Rated output and its corresponding accuracy class are supplied as one selected combination only.
- The 100V secondary output is used for metering, monitoring or control circuits.
- The 220V secondary output is available when an auxiliary power secondary winding is specified.
- Final secondary winding arrangement, burden, accuracy class and terminal marking should follow the approved drawing and nameplate.
- If project parameters exceed the listed range, they should be confirmed by agreement between manufacturer and purchaser.
Installation and Dimensions
The JDZC1-10 / JDZ-10 series should be installed according to the approved outline drawing, wiring diagram and switchgear layout. The product has two high-voltage primary terminals, low-voltage secondary terminal outlets and a base-mounted structure for indoor switchgear installation.
Dimension and Weight Reference
| Configuration | Typical Drawing Note | Approximate Weight |
|---|---|---|
| 10000/220V, 6P, 300VA configuration | Standard semi-enclosed JDZC1-10 / JDZ-10 structure | Approx. 25kg |
| 10000/100/220V, 0.5/6P, 80/300VA configuration | Dual secondary output configuration | Approx. 27kg |
Terminal and Wiring Notes
- Primary terminals A and B should be connected according to the approved wiring diagram.
- Secondary terminal markings may differ by configuration, such as 1a-1b for 100V output and 2a-2b for auxiliary output.
- Single-phase and three-phase wiring arrangements should follow the project design drawing.
- Terminal markings, grounding arrangement and insulation clearance must be checked before commissioning.
- The total connected burden must not exceed the rated capacity of each secondary winding.
Compliance and Testing
The JDZC1-10 / JDZ-10 series is designed for indoor medium-voltage voltage transformer applications. The provided sample refers to GB20840.3-2013 and IEC61869-3:2011, together with customer-specific requirements. Project compliance should be confirmed according to the 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 and auxiliary winding verification
Engineering Notes
- Use JDZC1-10 / JDZ-10 for compact 11kV network / 12kV switchgear applications requiring voltage measurement or auxiliary output.
- Confirm whether the project requires a single 100V secondary output or a 100V / 220V dual-output configuration.
- Do not exceed the rated output of each secondary winding.
- Check weight, terminal layout, base mounting dimensions and insulation clearance before installation.
- For higher auxiliary output capacity, compare with JDZC2-10 or JDZC3-10 according to project requirements.
Selection Guide
How to select JDZC1-10 / JDZ-10
Select JDZC1-10 / JDZ-10 when the project requires a compact semi-enclosed epoxy cast-resin voltage transformer for 11kV networks or 12kV switchgear. The model is suitable for metering, monitoring, control signal output and auxiliary secondary output depending on configuration.
How to confirm model naming
JDZC1-10 and JDZ-10 may refer to the same product structure on this page. Use the naming required by the project drawing, customer specification or nameplate documentation.
How to confirm secondary output configuration
Use the 100V secondary output for metering or monitoring circuits. Use the 220V secondary output only when the product is configured with an auxiliary power winding. Confirm terminal markings before installation.
How to compare with JDZC2-10 and JDZC3-10
JDZC1-10 / JDZ-10 is suitable for compact applications. If the project requires higher auxiliary power output or higher maximum output, compare it with JDZC2-10 or JDZC3-10 before selection.
Ordering Information
Please provide the following information when ordering or requesting a quotation:
- Product model: JDZC1-10 or JDZ-10
- Preferred model name on nameplate and documents
- Rated primary voltage and voltage class
- Required secondary output: 100V, 220V or 100V / 220V
- Required accuracy class and rated capacity
- Rated insulation level
- Rated frequency: 50Hz or 60Hz
- Installation dimensions or switchgear layout requirements
- Applicable standard or project specification
- Quantity
- Special requirements for drawings, test reports, certificates, nameplate language, packaging or shipping