JDZ10-3.6/10 Indoor Voltage Transformer | Epoxy Resin VT
๐ Compact Indoor Voltage Transformer for 3.6โ10kV MV Systems

The JDZ10-3.6/10A1(A2/B) indoor voltage transformer is a single-phase epoxy-resin cast VT designed for indoor medium-voltage power distribution systems ranging from 3.6kV to 10kV. With high accuracy and strong insulation performance, it is ideal for use in switchgear, control panels, metering cabinets, and substations requiring precise voltage monitoring and relay protection.
This model conforms to IEC 60044-2 and GB 1207, and is frequently adopted in urban MV grids and renewable energy projects due to its compact size and fire-resistant epoxy casting.
๐ Technical Parameters
| Item | Specification |
|---|---|
| Model | JDZ10-3.6/10A1 (or A2/B) |
| Rated Voltage | 3.6kV / 6kV / 10kV |
| Frequency | 50Hz |
| Accuracy Class | 0.2 / 0.5 / 1.0 (optional) |
| Rated Output | 10 VA ~ 100 VA |
| Insulation Material | Epoxy Resin, Flame-Retardant |
| Installation Position | Indoor, Fixed Mount |
| Cooling Method | Natural Air Cooled (AN) |
| Standard Compliance | IEC 60044-2, GB 1207 |
| Pollution Level | II |
โ๏ธ Key Features
High Dielectric Strength
Designed for long-term stability under high insulation stress.Flame-Retardant Epoxy Casting
Suitable for enclosed switchgear panels with limited ventilation.Flexible Secondary Configuration
Models available with 1 or 2 secondary windings (A1, A2, or B types).Compact & Lightweight
Saves panel space, ideal for compact RMU or switchboard integration.Wide Application Voltage Range
Supports multiple rated voltages from 3.6kV up to 10kV with the same frame.

๐ Where JDZ10-3.6/10A1(A2/B) is Commonly Used
Indoor metal-enclosed switchgear
Transformer substations in urban grids
Solar and wind renewable power cabinets
Factory MV distribution panels
Metering and control rooms of industrial plants
๐ Real Customer Feedback
๐น Juan M. โ Energy Projects Manager, Iberdrola (Spain)
"Stable accuracy even in high humidity environments. Reliable resin casing."
๐น Clara R. โ Procurement Engineer, Hydro One (Canada)
"The JDZ10 VT worked seamlessly with our medium-voltage switchgear upgrades."
๐น Paul S. โ Substation Installer, National Grid UK
"Compact, clean, and safe for confined cabinets. Easy wiring."
๐น Martin D. โ MV Switchgear Designer, Siemens Channel Partner (Germany)
"JDZ10 model fits well with our 6kV VCB panels. Consistent output under load."
๐น Emily K. โ QA Inspector, PowerCo NZ
"We use the A2/B version for dual metering and protectionโaccurate and stable."
โ FAQ โ JDZ10 Indoor Voltage Transformer
โข Whatโs the difference between A1, A2, and B type suffixes?
These denote different secondary wiring configurations and the number of windings. For example, B-type typically includes an additional protective winding.
โข Can this VT be used in metal-clad switchgear?
Yes. The compact epoxy body makes it suitable for enclosed applications.
โข Is it oil-free and maintenance-free?
Yes. Fully dry-type epoxy insulation requires no oil or maintenance.
โข What is the accuracy class available?
Available in 0.2, 0.5, and 1.0, depending on metering or protection requirements.
โข Can this VT support dual output (metering + relay)?
Yes. Dual secondary windings (e.g., A2/B types) enable combined applications.
๐ฉ Need Technical Drawings or Custom Output Ratios?
Thor โ Electrical Engineer, Wei Shoe Elec
๐ Tel: +86-0577-62788197
๐ฑ WhatsApp: +86 159 5777 0984
๐ง Email: [email protected]
We help OEMs and contractors choose the right indoor VT models for 3.6kVโ10kV systems.









