
Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
JDZ-3/6/10kV Voltage Transformer Indoor Single-Phase Epoxy Resin Casting PT: 3kV/6kV/10kV, 3000/6000/10000V/100V ratio, 0.2/0.5/1/3/6P accuracy class, dual secondary winding option, epoxy resin casting insulation, 3.6-12/25-42/40-75kV insulation level, 20-300VA burden, 200-500VA max output, 50-60Hz, GB1207 IEC60044-2.
Advanced JDZ Epoxy Resin Casting Transformer Series: Indoor single-phase epoxy resin casting voltage transformer conforming to GB1207 and IEC60044-2 standards, three voltage levels available (JDZ-3Q 3kV, JDZ-6Q 6kV, JDZ-10Q 10kV), rated insulation levels 3.6/25/40kV, 7.2/32/60kV, and 12/42/75kV respectively, rated frequency 50Hz or 60Hz, designed for voltage and electric energy measurement and relay protection in indoor switchgear and distribution systems, innovative epoxy resin casting insulation providing superior moisture resistance, environmental protection, and maintenance-free operation, dual secondary winding configurations available for simultaneous metering and protection (100V/√3 + 100V/3), voltage ratios 3000/100V, 6000/100V, 10000/100V for phase-to-phase measurement, and 3kV/√3, 6kV/√3, 10kV/√3 for phase-to-ground measurement, accuracy classes 0.2/0.5/1/3/6P with burden capacity 20-300VA, maximum output 200-500VA.
Superior Epoxy Resin Casting Technology and Multi-Voltage Flexibility: JDZ series features advanced epoxy resin casting insulation ensuring excellent moisture resistance, environmental protection, flame retardancy, and maintenance-free operation with no oil leakage concerns, compact design ideal for indoor switchgear installations, three voltage levels (3kV/6kV/10kV) offering flexibility for various distribution voltage applications, dual secondary winding option enabling simultaneous high-precision metering and relay protection functions, triple secondary winding configuration (JDZJ-10Q) providing 100V/√3 + 100V/√3 + 100V/3 for advanced metering and protection requirements, suitable for indoor switchgear, distribution substations, industrial facilities, commercial buildings, and applications requiring maintenance-free voltage measurement from 3kV to 10kV with epoxy resin casting reliability.

| Type | H | L | A1 | A2 | B1 | B2 |
|---|---|---|---|---|---|---|
| JDZ-10Q | 165 | 315 | 170 | 238 | 90 | 220 |
| JDZ-3,6Q | 160 | 285 | 168 | 216 | 90 | 188 |

| Type | H | L | A1 | A2 | B1 | B2 |
|---|---|---|---|---|---|---|
| JDZJ-10Q | 180 | 315 | 90 | 220 | 170 | 238 |
| JDZJ-3,6Q | 160 | 285 | 90 | 188 | 168 | 216 |

| JDZ-3/6/10kV Voltage Transformer Specifications | Parameter | Unit |
|---|---|---|
| Brand | Bepto Insulation Systems | – |
| Model Number | JDZ-3/6/10kV Series (JDZ-3Q/6Q/10Q, JDZJ-3Q/6Q/10Q) | – |
| Category | Switchgear & HV PT (High Voltage Potential Transformer) | – |
| Product Type | 3kV/6kV/10kV Indoor Single-Phase Epoxy Resin Casting Voltage Transformer with Dual/Triple Secondary Winding, 0.2/0.5/1/3/6P Accuracy Class, 3.6-12/25-42/40-75kV Insulation for Voltage & Energy Measurement and Relay Protection | – |
| Core Technology | Indoor Single-Phase Epoxy Resin Casting Design + Multi-Voltage Flexibility (3kV/6kV/10kV) + Dual/Triple Secondary Winding Configuration + GB1207 and IEC60044-2 Standards Compliant + Rated Insulation Levels (3.6/25/40kV, 7.2/32/60kV, 12/42/75kV) + Rated Frequency 50Hz or 60Hz + Voltage Ratios (3000/100V, 6000/100V, 10000/100V, Phase-to-Ground Options) + Accuracy Classes (0.2, 0.5, 1, 3, 6P) + Burden Capacity 20-300VA + Maximum Output 200-500VA + Superior Moisture Resistance + Environmental Protection + Flame Retardancy + Maintenance-Free Operation + No Oil Leakage + Compact Design + Proven Epoxy Resin Technology | – |
| Power (Voltage) | 3kV / 6kV / 10kV | – |
| Rated Voltage (JDZ-3Q) | 3 | kV |
| Rated Voltage (JDZ-6Q) | 6 | kV |
| Rated Voltage (JDZ-10Q) | 10 | kV |
| Voltage Ratio (JDZ-3Q) | 3000/100 | V |
| Voltage Ratio (JDZ-6Q) | 6000/100 | V |
| Voltage Ratio (JDZ-10Q) | 10000/100 | V |
| Voltage Ratio (JDZJ-3Q) | 3kV/√3/100V/√3 + 100V/3 | V |
| Voltage Ratio (JDZJ-6Q) | 6kV/√3/100V/√3 + 100V/3 | V |
| Voltage Ratio (JDZJ-10Q) | 10kV/√3/100V/√3 + 100V/3 | V |
| Voltage Ratio (JDZJ-10Q Triple) | 10kV/√3/100V/√3 + 100V/√3 + 100V/3 | V |
| Rated Frequency | 50Hz or 60Hz | Hz |
| Accuracy Classes | 0.2, 0.5, 1, 3, 6P | – |
| Insulation Level (JDZ-3Q) | 3.6/25/40 | kV |
| Insulation Level (JDZ-6Q) | 7.2/32/60 | kV |
| Insulation Level (JDZ-10Q) | 12/42/75 | kV |
| Max Output (JDZ-3Q) | 200 | VA |
| Max Output (JDZ-6Q) | 400 | VA |
| Max Output (JDZ-10Q) | 500 | VA |
| Max Output (JDZJ-3Q) | 200 | VA |
| Max Output (JDZJ-6Q) | 400 | VA |
| Max Output (JDZJ-10Q) | 400 | VA |
| Max Output (JDZJ-10Q Triple) | 200/200 | VA |
| Insulation Type | Epoxy Resin Casting | – |
| Structure Type | Indoor Single-Phase Epoxy Resin Casting | – |
| Voltage Level | Low-Medium Voltage (3kV/6kV/10kV) | – |
| Installation Type | Indoor | – |
| Phase | Single Phase | – |
| Standards Compliance | GB1207 and IEC60044-2 | – |
| FOB Port | Ningbo/Shanghai | – |
| Terms of Payment | Western Union, T/T, Paypal | – |
| Multi-Voltage 3kV/6kV/10kV | Yes (Three Voltage Levels Available) | – |
| Epoxy Resin Casting | Yes (Epoxy Resin Casting Insulation) | – |
| Single-Phase | Yes (Single-Phase Configuration) | – |
| Indoor Construction | Yes (Indoor Installation) | – |
| Dual Secondary Winding | Yes (Dual Secondary Available) | – |
| Triple Secondary Winding | Yes (Triple Secondary Available for JDZJ-10Q) | – |
| 50Hz or 60Hz | Yes (Rated Frequency 50Hz or 60Hz) | – |
| GB1207 Compliant | Yes (In Accordance with GB1207 Standard) | – |
| IEC60044-2 Compliant | Yes (In Accordance with IEC60044-2 Standard) | – |
| 3.6-12/25-42/40-75kV Insulation | Yes (Rated Insulation Levels) | – |
| 0.2 Accuracy Class | Yes (0.2 Metering Accuracy Class Available) | – |
| 0.5 Accuracy Class | Yes (0.5 Metering Accuracy Class Available) | – |
| 1 Accuracy Class | Yes (1 Monitoring Accuracy Class Available) | – |
| 3 Accuracy Class | Yes (3 Monitoring Accuracy Class Available) | – |
| 6P Protection Class | Yes (6P Protection Accuracy Class Available) | – |
| 200-500VA Max Output | Yes (Maximum Output 200-500VA) | – |
| Moisture Resistance | Yes (Superior Moisture Resistance) | – |
| Environmental Protection | Yes (Environmentally Friendly) | – |
| Flame Retardancy | Yes (Flame Retardant Properties) | – |
| Maintenance-Free | Yes (No Maintenance Required) | – |
| No Oil Leakage | Yes (Solid Insulation, No Oil) | – |
| Compact Design | Yes (Compact for Indoor Switchgear) | – |
| Model Type | Rated Voltage | Voltage Ratio | Insulation Level | Max Output | Application |
|---|---|---|---|---|---|
| JDZ-3Q | 3kV | 3000/100V | 3.6/25/40kV | 200VA | 3kV phase-to-phase measurement |
| JDZ-6Q | 6kV | 6000/100V | 7.2/32/60kV | 400VA | 6kV phase-to-phase measurement |
| JDZ-10Q | 10kV | 10000/100V | 12/42/75kV | 500VA | 10kV phase-to-phase measurement |
| JDZJ-3Q | 3kV/√3 | 3kV/√3/100V/√3 + 100V/3 | 3.6/25/40kV | 200VA | 3kV phase-to-ground + protection |
| JDZJ-6Q | 6kV/√3 | 6kV/√3/100V/√3 + 100V/3 | 7.2/32/60kV | 400VA | 6kV phase-to-ground + protection |
| JDZJ-10Q | 10kV/√3 | 10kV/√3/100V/√3 + 100V/3 | 12/42/75kV | 400VA | 10kV phase-to-ground + protection |
| JDZJ-10Q (Triple) | 10kV/√3 | 10kV/√3/100V/√3 + 100V/√3 + 100V/3 | 12/42/75kV | 200/200VA | 10kV dual metering + protection |
| Epoxy Resin Casting Feature | Description | Benefit |
|---|---|---|
| Solid Insulation | Epoxy resin casting provides solid insulation | No oil leakage, environmentally friendly |
| Superior Moisture Resistance | Epoxy resin is highly moisture resistant | Reliable operation in humid environments |
| Flame Retardancy | Self-extinguishing flame retardant properties | Enhanced fire safety |
| Maintenance-Free | Solid insulation requires no maintenance | Reduced operational costs and downtime |
| Environmental Protection | No oil, no pollution | Eco-friendly and safe for indoor use |
| Compact Design | Smaller footprint than oil-immersed types | Ideal for space-constrained indoor switchgear |
| Long Service Life | Epoxy resin does not age like oil | Extended operational life (30+ years) |
| High Mechanical Strength | Robust epoxy resin construction | Excellent vibration and shock resistance |
| Excellent Dielectric Properties | High dielectric strength | Reliable high voltage insulation |
| No Explosion Risk | Solid insulation eliminates explosion hazard | Enhanced safety for indoor installations |
| JDZ Series (Single-Phase Line-to-Line Voltage Measurement) | ||||||
| Model | Primary Voltage | Secondary Voltage | Accuracy Classes | Burden Capacity | Max Output | Application |
| JDZ-3Q | 3kV | 100V | 0.2, 0.5, 1, 3 | 20-80VA | 200VA | Phase-to-phase voltage measurement |
| JDZ-3Q (Dual) | 3kV | 100V + 100V | 0.2/0.2, 0.2/0.5, 0.5/0.5 | 15/15-30/30VA | 200VA | Dual metering applications |
| JDZ-6Q | 6kV | 100V | 0.2, 0.5, 1, 3 | 30-200VA | 400VA | Phase-to-phase voltage measurement |
| JDZ-6Q (Dual) | 6kV | 100V + 100V | 0.2/0.2, 0.2/0.5, 0.5/0.5 | 15/15-30/30VA | 400VA | Dual metering applications |
| JDZ-10Q | 10kV | 100V | 0.2, 0.5, 1, 3 | 30-300VA | 500VA | Phase-to-phase voltage measurement |
| JDZ-10Q (Dual) | 10kV | 100V + 100V | 0.2/0.2, 0.2/0.5, 0.5/0.5 | 15/20-50/50VA | 500VA | Dual metering applications |
| JDZJ Series (Single-Phase Phase-to-Earth Voltage Measurement and Protection) | ||||||
| Model | Primary Voltage | Secondary Voltage | Accuracy Classes | Burden Capacity | Max Output | Application |
| JDZJ-3Q | 3kV/√3 (1.73kV) | 100V/√3 (57.7V) + 100V/3 (33.3V) | 0.5, 1, 3, 6P | 30-80VA + 50VA | 200VA | Phase-to-ground metering + protection |
| JDZJ-6Q | 6kV/√3 (3.46kV) | 100V/√3 (57.7V) + 100V/3 (33.3V) | 0.2, 0.5, 1, 3, 6P | 20-200VA + 50VA | 400VA | Phase-to-ground metering + protection |
| JDZJ-10Q | 10kV/√3 (5.77kV) | 100V/√3 (57.7V) + 100V/3 (33.3V) | 0.2, 0.5, 1, 6P | 50-200VA + 100VA | 400VA | Phase-to-ground metering + protection |
| JDZJ-10Q (Triple) | 10kV/√3 (5.77kV) | 100V/√3 + 100V/√3 + 100V/3 | 0.2/0.2, 0.5/0.5, 6P | 15/15-25/25VA + 100VA | 200/200VA | Dual metering + protection |
| Triple Secondary Winding Feature | Description | Benefit |
|---|---|---|
| First Metering Winding | 100V/√3 (0.2 or 0.5 class) | High-precision revenue metering |
| Second Metering Winding | 100V/√3 (0.2 or 0.5 class) | Backup metering or separate monitoring |
| Protection Winding | 100V/3 (6P class) | Dedicated relay protection |
| Independent Operation | Three windings operate independently | No interference between functions |
| Maximum Flexibility | Supports dual metering + protection | Ideal for critical applications requiring redundancy |
| Cost-Effective | Single transformer for three functions | Reduces equipment and installation costs |
| JDZ-3Q(3kV) | |||
| Accuracy Class | Burden Capacity (VA) | Max Output (VA) | Application |
| 0.2 | 20 | 200 | High-precision revenue metering for 3kV systems |
| 0.5 | 30 | 200 | Standard metering and monitoring for 3kV systems |
| 1 | 50 | 200 | General voltage monitoring for 3kV systems |
| 3 | 80 | 200 | Monitoring applications for 3kV systems |
| 0.2/0.2 (Dual) | 15/15 | 200 | Dual high-precision metering |
| 0.5/0.5 (Dual) | 30/30 | 200 | Dual standard metering |
| JDZ-6Q(6kV) | |||
| Accuracy Class | Burden Capacity (VA) | Max Output (VA) | Application |
| 0.2 | 30 | 400 | High-precision revenue metering for 6kV systems |
| 0.5 | 50 | 400 | Standard metering and monitoring for 6kV systems |
| 1 | 80 | 400 | General voltage monitoring for 6kV systems |
| 3 | 200 | 400 | Monitoring applications for 6kV systems |
| 0.2/0.2 (Dual) | 15/15 | 400 | Dual high-precision metering |
| 0.5/0.5 (Dual) | 30/30 | 400 | Dual standard metering |
| JDZ-10Q(10kV) | |||
| Accuracy Class | Burden Capacity (VA) | Max Output (VA) | Application |
| 0.2 | 30 | 500 | High-precision revenue metering for 10kV systems |
| 0.5 | 80 | 500 | Standard metering and monitoring for 10kV systems |
| 1 | 150 | 500 | General voltage monitoring for 10kV systems |
| 3 | 300 | 500 | Monitoring applications for 10kV systems |
| 0.2/0.2 (Dual) | 15/20 | 500 | Dual high-precision metering |
| 0.5/0.5 (Dual) | 50/50 | 500 | Dual standard metering |
| JDZ-3Q(3kV)Insulation Level | |||
| Insulation Level | Lightning Impulse Withstand | Power Frequency Withstand | Application Environment |
| 3.6kV | Rated voltage level | Short-duration power frequency | Standard 3kV systems |
| 25kV | Lightning impulse | Medium-duration withstand | Lightning protection requirements |
| 40kV | Full lightning impulse | Full insulation withstand | Maximum insulation protection |
| JDZ-6Q(6kV)Insulation Level | |||
| Insulation Level | Lightning Impulse Withstand | Power Frequency Withstand | Application Environment |
| 7.2kV | Rated voltage level | Short-duration power frequency | Standard 6kV systems |
| 32kV | Lightning impulse | Medium-duration withstand | Lightning protection requirements |
| 60kV | Full lightning impulse | Full insulation withstand | Maximum insulation protection |
| JDZ-10Q(10kV)Insulation Level | |||
| Insulation Level | Lightning Impulse Withstand | Power Frequency Withstand | Application Environment |
| 12kV | Rated voltage level | Short-duration power frequency | Standard 10kV systems |
| 42kV | Lightning impulse | Medium-duration withstand | Lightning protection requirements |
| 75kV | Full lightning impulse | Full insulation withstand | Maximum insulation protection |
| Application Scenario | Recommended Model | Key Advantage | Typical Installation |
|---|---|---|---|
| 3kV Indoor Switchgear | JDZ-3Q | Compact epoxy resin design for 3kV applications | 3kV indoor switchgear, small substations |
| 6kV Indoor Switchgear | JDZ-6Q | Maintenance-free with 400VA output for 6kV applications | 6kV indoor switchgear, industrial facilities |
| 10kV Indoor Switchgear | JDZ-10Q | High capacity with 500VA output for 10kV applications | 10kV indoor switchgear, distribution substations |
| 3kV/6kV/10kV with Protection | JDZJ-3Q/6Q/10Q | Dual secondary for metering + protection | Systems requiring relay protection |
| 10kV Critical Applications | JDZJ-10Q (Triple) | Triple secondary for dual metering + protection | Critical systems requiring redundancy |
| Indoor Substations | JDZ/JDZJ Series | Epoxy resin casting eliminates oil leakage concerns | Indoor distribution substations |
| Commercial Buildings | JDZ-6Q/10Q | Compact, safe, maintenance-free for commercial use | Shopping malls, office buildings |
| Industrial Facilities | JDZJ-6Q/10Q | Dual secondary for metering and protection | Manufacturing plants, industrial parks |
Bepto is a leading Chinese company in electrical insulation, focused on developing advanced solutions for future power systems. We support transmission and distribution safety and growth, with long-term partners including State Grid, ABB, Schneider, Siemens, and GE. Our services reach clients in over 22 countries.

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Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.