Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
JSZJK-3/6/10 Indoor Three-Phase Anti-Resonance Voltage Transformer: 3kV/6kV/10kV, indoor three-phase epoxy resin casting, anti-magnet ferroresonance suppression, 3kV-10kV/√3/100V/√3+100V/√3 ratio, triple secondary winding, 0.2/0.5/1/3/6P accuracy class, 3.6-12/25-42/40-75kV insulation, 3×400VA thermal limit output, 310mm creepage, 50-60Hz, GB1207 IEC60044-2.
Advanced JSZJK indoor three-phase anti-magnet anti-resonance voltage transformer featuring epoxy resin casting, conforming to GB1207 and IEC60044-2 standards, three voltage levels (3kV, 6kV, 10kV), rated insulation levels 3.6/25/40kV, 7.2/32/60kV, and 12/42/75kV, rated frequency 50Hz or 60Hz, designed for indoor ungrounded or resonant grounded systems with ferroresonance suppression capability, 100V/√3 dual secondary measuring windings plus 100V/√3 residual voltage winding for comprehensive voltage measurement and grounding protection.
Superior anti-magnet design eliminates ferroresonance overvoltage risks in indoor ungrounded systems, exceptional 3×400VA thermal limit output capacity supports extensive indoor multiple load connections, triple secondary winding configurations (JDZJK series) available for dual metering plus grounding protection, 310mm creepage distance ensures reliable insulation performance, compact three-phase integrated design reduces indoor installation space and costs, suitable for indoor substations, indoor switchgear, and metal-clad equipment requiring reliable ferroresonance suppression and grounding protection.
| JSZJK-3/6/10 Indoor Three-Phase Anti-Resonance Voltage Transformer Specifications | Parameter | Unit |
|---|---|---|
| Brand | Bepto Insulation Systems | – |
| Model Number | JSZJK-3/6/10 Series (JSZJK-3, JSZJK-6, JSZJK-10, JDZJK-3, JDZJK-6, JDZJK-10) | – |
| Category | Switchgear & HV PT (High Voltage Potential Transformer) | – |
| Product Type | 3kV/6kV/10kV Indoor Three-Phase Anti-Magnet Anti-Resonance Epoxy Resin Casting Voltage Transformer with Ferroresonance Suppression, Triple Secondary Winding, 0.2/0.5/1/3/6P Accuracy Class, 3.6-12/25-42/40-75kV Insulation, 3×400VA Thermal Limit Output for Indoor Ungrounded Systems Voltage & Energy Measurement and Grounding Protection | – |
| Core Technology | Indoor Three-Phase Anti-Magnet Anti-Resonance Epoxy Resin Casting Design + Ferroresonance Suppression Technology + Multi-Voltage Flexibility (3kV/6kV/10kV) + Integrated Three-Phase 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 + Phase-to-Ground Voltage Ratio (3kV-10kV/√3/100V/√3+100V/√3) + Triple Secondary Winding Configuration + Accuracy Classes (0.2, 0.5, 1, 3, 6P/3P) + Rated Secondary Load 3×10-3×150VA + Thermal Limit Output 3×200-3×400VA + 310mm Creepage Distance + Compact Three-Phase Integrated Design + Proven Anti-Magnet Anti-Resonance Technology | – |
| Power (Voltage) | 3kV / 6kV / 10kV | – |
| Installation Type | Indoor | – |
| Phase | Three Phase (Integrated) | – |
| Structure Type | Single-Phase Units (Three Required for Three-Phase System) | – |
| Rated Voltage (JSZJK-3) | 3kV/√3 (1.73kV) | per phase |
| Rated Voltage (JSZJK-6) | 6kV/√3 (3.46kV) | per phase |
| Rated Voltage (JSZJK-10) | 10kV/√3 (5.77kV) | per phase |
| Voltage Ratio (JSZJK Dual) | 3kV-10kV/√3/0.1/√3/0.1 | kV |
| Voltage Ratio (JDZJK Triple) | 3kV-10kV/√3/0.1/√3/0.1/√3/0.1 | kV |
| Secondary Measuring Winding 1 | 100V/√3 (57.7V) | V |
| Secondary Measuring Winding 2 | 100V/√3 (57.7V) | V |
| Residual Voltage Winding | 100V/√3 (57.7V) | V |
| Rated Frequency | 50Hz or 60Hz | Hz |
| Accuracy Classes | 0.2, 0.5, 1, 3, 6P (3P) | – |
| Insulation Level (JSZJK-3) | 3.6/25/40 | kV |
| Insulation Level (JSZJK-6) | 7.2/32/60 | kV |
| Insulation Level (JSZJK-10) | 12/42/75 | kV |
| Thermal Limit Output (JSZJK Dual) | 3×400 | VA |
| Thermal Limit Output (JDZJK Triple) | 3×200 | VA |
| Rated Secondary Load (0.2 Class) | 3×20 | VA |
| Rated Secondary Load (0.5 Class) | 3×50 | VA |
| Rated Secondary Load (1 Class) | 3×80 | VA |
| Rated Secondary Load (3 Class) | 3×150 | VA |
| Rated Secondary Load (6P/3P Class) | 100 | VA |
| Rated Secondary Load (0.2/0.2 Triple) | 3×10/3×10 | VA |
| Rated Secondary Load (0.2/0.5 Triple) | 3×10/3×15 | VA |
| Rated Secondary Load (0.5/0.5 Triple) | 3×20/3×20 | VA |
| Creepage Distance | 310 | mm |
| Weight | 82 | kg |
| Insulation Type | Indoor Epoxy Resin Casting | – |
| Anti-Resonance Technology | Anti-Magnet Ferroresonance Suppression Design | – |
| Voltage Level | Low-Medium Voltage (3kV/6kV/10kV) | – |
| 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) | – |
| Indoor Three-Phase | Yes (Indoor Three-Phase Application) | – |
| Anti-Resonance | Yes (Ferroresonance Suppression Technology) | – |
| Anti-Magnet | Yes (Anti-Magnet Design) | – |
| Indoor Epoxy Resin Casting | Yes (Indoor Epoxy Resin Casting Insulation) | – |
| 3×400VA Thermal Output | Yes (3×400VA Thermal Limit Output for Dual Secondary) | – |
| 100V/√3+100V/√3 Ratio | Yes (Dual Measuring Windings + Residual Voltage Winding) | – |
| Triple Secondary Winding | Yes (Triple Secondary Available in JDZJK Series) | – |
| Ferroresonance Suppression | Yes (Anti-Magnet Anti-Resonance Design) | – |
| Grounding Protection | Yes (100V/√3 Residual Voltage Winding) | – |
| 310mm Creepage Distance | Yes (310mm Surface Creepage Distance) | – |
| 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/3P Protection Class | Yes (6P/3P Protection Accuracy Class Available) | – |
| Compact Design | Yes (Three Single-Phase Units for Three-Phase System) | – |
| JSZJK Series (Indoor three-phase anti-ferromagnetic, anti-resonance with dual secondary windings) | |||||
| Model Type | Rated Voltage | Voltage Ratio | Insulation Level | Thermal Limit Output | Application |
| JSZJK-3 | 3kV/√3 (1.73kV) | 3kV/√3/0.1/√3/0.1 | 3.6/25/40kV | 3×400VA | 3kV indoor three-phase anti-resonance with grounding protection |
| JSZJK-6 | 6kV/√3 (3.46kV) | 6kV/√3/0.1/√3/0.1 | 7.2/32/60kV | 3×400VA | 6kV indoor three-phase anti-resonance with grounding protection |
| JSZJK-10 | 10kV/√3 (5.77kV) | 10kV/√3/0.1/√3/0.1 | 12/42/75kV | 3×400VA | 10kV indoor three-phase anti-resonance with grounding protection |
| JDZJK Series (Indoor three-phase anti-ferromagnetic, anti-resonance with three secondary windings) | |||||
| Model Type | Rated Voltage | Voltage Ratio | Insulation Level | Thermal Limit Output | Application |
| JDZJK-3 | 3kV/√3 (1.73kV) | 3kV/√3/0.1/√3/0.1/√3/0.1 | 3.6/25/40kV | 3×200VA | 3kV indoor dual metering + grounding protection with anti-resonance |
| JDZJK-6 | 6kV/√3 (3.46kV) | 6kV/√3/0.1/√3/0.1/√3/0.1 | 7.2/32/60kV | 3×200VA | 6kV indoor dual metering + grounding protection with anti-resonance |
| JDZJK-10 | 10kV/√3 (5.77kV) | 10kV/√3/0.1/√3/0.1/√3/0.1 | 12/42/75kV | 3×200VA | 10kV indoor dual metering + grounding protection with anti-resonance |
| Anti-Magnet Ferroresonance Suppression Feature | Description | Benefit |
|---|---|---|
| Anti-Magnet Design | Special core and winding design prevents ferroresonance (iron-core magnetic resonance) | Eliminates dangerous ferroresonance overvoltages in indoor systems |
| Ferroresonance Suppression Technology | Advanced anti-magnet technology suppresses ferroresonance phenomena | Protects equipment from ferroresonance-induced overvoltages |
| Ungrounded System Protection | Prevents ferroresonance in ungrounded neutral systems | Essential for indoor systems without solid grounding |
| Resonant Grounded System Protection | Prevents ferroresonance in resonant (arc suppression coil) grounded systems | Critical for indoor Petersen coil grounded networks |
| Overvoltage Prevention | Eliminates ferroresonance-induced overvoltages (up to 3-5 times rated voltage) | Protects indoor equipment from destructive overvoltages |
| Equipment Protection | Prevents damage to transformers, cables, and switchgear from ferroresonance | Extends indoor equipment life and reduces failures |
| System Stability | Maintains stable voltage during switching operations | Prevents voltage instability and oscillations in indoor systems |
| Switching Surge Immunity | Resistant to ferroresonance triggered by switching operations | Reliable operation during indoor circuit breaker operations |
| Ground Fault Immunity | Prevents ferroresonance during single-phase ground faults | Maintains indoor system stability during fault conditions |
| Capacitive Coupling Immunity | Resistant to ferroresonance from capacitive coupling | Prevents resonance from indoor cable capacitance |
| Proven Anti-Magnet Technology | Established anti-magnet design with field-proven performance | Reliable ferroresonance suppression in real-world indoor applications |
| 3×400VA Thermal Limit Output Capacity Feature | Description | Benefit |
|---|---|---|
| 3×400VA Thermal Limit Output (JSZJK Dual) | 3×400VA (1200VA total) thermal limit output capacity for dual secondary configuration | High capacity for indoor three-phase multiple load connections |
| 3×200VA Thermal Limit Output (JDZJK Triple) | 3×200VA (600VA total) thermal limit output capacity for triple secondary configuration | Adequate capacity for dual indoor three-phase metering + grounding protection |
| Indoor Three-Phase High Capacity | High thermal limit output capacity for indoor three-phase systems | Supports extensive indoor distribution loads |
| Multiple Load Support | Can drive numerous indoor metering devices and relays | Eliminates need for multiple indoor three-phase transformers |
| Indoor SCADA Systems | Sufficient capacity for indoor three-phase data acquisition | Enables advanced indoor monitoring and control |
| Thermal Withstand Capability | Thermal limit output ensures reliable operation under overload conditions | Protects transformer during temporary overload situations |
| 310mm Creepage Distance Feature | Description | Benefit |
|---|---|---|
| 310mm Surface Creepage Distance | 310mm creepage distance for enhanced insulation | Reliable insulation performance in indoor environments |
| Enhanced Insulation | Extended creepage distance improves insulation reliability | Prevents surface flashover and tracking |
| Pollution Resistance | Adequate creepage distance for polluted indoor environments | Reliable operation in dusty or contaminated indoor locations |
| Safety Margin | Generous creepage distance provides safety margin | Enhanced protection against insulation breakdown |
| Long-Term Reliability | Extended creepage distance ensures long-term insulation performance | Reduces maintenance and extends service life |
| Model | Voltage Level | Installation | Function | Winding Configuration | Accuracy Class / Combination | Rated Secondary Load (VA) | Thermal Limit Output (VA) | Application |
|---|---|---|---|---|---|---|---|---|
| JSZJK-3 | 3kV | Indoor | Anti-ferromagnetic resonance | Dual secondary | 0.2 / 6P(3P) | 3×20 / 100 | 3×400 | High-precision three-phase anti-resonance metering + grounding protection |
| JSZJK-3 | 3kV | Indoor | Anti-ferromagnetic resonance | Dual secondary | 0.5 / 6P(3P) | 3×50 / 100 | 3×400 | Standard three-phase anti-resonance metering + grounding protection |
| JSZJK-3 | 3kV | Indoor | Anti-ferromagnetic resonance | Dual secondary | 1 / 6P(3P) | 3×80 / 100 | 3×400 | General three-phase anti-resonance monitoring + grounding protection |
| JSZJK-3 | 3kV | Indoor | Anti-ferromagnetic resonance | Dual secondary | 3 / 6P(3P) | 3×150 / 100 | 3×400 | Three-phase anti-resonance instrumentation + grounding protection |
| JSZJK-6 | 6kV | Indoor | Anti-ferromagnetic resonance | Dual secondary | 0.2 / 6P(3P) | 3×20 / 100 | 3×400 | High-precision three-phase anti-resonance metering + grounding protection |
| JSZJK-6 | 6kV | Indoor | Anti-ferromagnetic resonance | Dual secondary | 0.5 / 6P(3P) | 3×50 / 100 | 3×400 | Standard three-phase anti-resonance metering + grounding protection |
| JSZJK-6 | 6kV | Indoor | Anti-ferromagnetic resonance | Dual secondary | 1 / 6P(3P) | 3×80 / 100 | 3×400 | General three-phase anti-resonance monitoring + grounding protection |
| JSZJK-6 | 6kV | Indoor | Anti-ferromagnetic resonance | Dual secondary | 3 / 6P(3P) | 3×150 / 100 | 3×400 | Three-phase anti-resonance instrumentation + grounding protection |
| JSZJK-10 | 10kV | Indoor | Anti-ferromagnetic resonance | Dual secondary | 0.2 / 6P(3P) | 3×20 / 100 | 3×400 | High-precision three-phase anti-resonance metering + grounding protection |
| JSZJK-10 | 10kV | Indoor | Anti-ferromagnetic resonance | Dual secondary | 0.5 / 6P(3P) | 3×50 / 100 | 3×400 | Standard three-phase anti-resonance metering + grounding protection |
| JSZJK-10 | 10kV | Indoor | Anti-ferromagnetic resonance | Dual secondary | 1 / 6P(3P) | 3×80 / 100 | 3×400 | General three-phase anti-resonance monitoring + grounding protection |
| JSZJK-10 | 10kV | Indoor | Anti-ferromagnetic resonance | Dual secondary | 3 / 6P(3P) | 3×150 / 100 | 3×400 | Three-phase anti-resonance instrumentation + grounding protection |
| JDZJK-3 | 3kV | Indoor | Anti-ferromagnetic resonance | Triple secondary | 0.2 / 0.2 / 6P(3P) | 3×10 / 3×10 / 100 | 3×200 | Dual high-precision metering + grounding protection |
| JDZJK-3 | 3kV | Indoor | Anti-ferromagnetic resonance | Triple secondary | 0.2 / 0.5 / 6P(3P) | 3×10 / 3×15 / 100 | 3×200 | High-precision metering + standard monitoring + grounding protection |
| JDZJK-3 | 3kV | Indoor | Anti-ferromagnetic resonance | Triple secondary | 0.5 / 0.5 / 6P(3P) | 3×20 / 3×20 / 100 | 3×200 | Dual standard metering + grounding protection |
| JDZJK-6 | 6kV | Indoor | Anti-ferromagnetic resonance | Triple secondary | 0.2 / 0.2 / 6P(3P) | 3×10 / 3×10 / 100 | 3×200 | Dual high-precision metering + grounding protection |
| JDZJK-6 | 6kV | Indoor | Anti-ferromagnetic resonance | Triple secondary | 0.2 / 0.5 / 6P(3P) | 3×10 / 3×15 / 100 | 3×200 | High-precision metering + standard monitoring + grounding protection |
| JDZJK-6 | 6kV | Indoor | Anti-ferromagnetic resonance | Triple secondary | 0.5 / 0.5 / 6P(3P) | 3×20 / 3×20 / 100 | 3×200 | Dual standard metering + grounding protection |
| JDZJK-10 | 10kV | Indoor | Anti-ferromagnetic resonance | Triple secondary | 0.2 / 0.2 / 6P(3P) | 3×10 / 3×10 / 100 | 3×200 | Dual high-precision metering + grounding protection |
| JDZJK-10 | 10kV | Indoor | Anti-ferromagnetic resonance | Triple secondary | 0.2 / 0.5 / 6P(3P) | 3×10 / 3×15 / 100 | 3×200 | High-precision metering + standard monitoring + grounding protection |
| JDZJK-10 | 10kV | Indoor | Anti-ferromagnetic resonance | Triple secondary | 0.5 / 0.5 / 6P(3P) | 3×20 / 3×20 / 100 | 3×200 | Dual standard metering + grounding protection |
| Ferroresonance Hazard | Description | Anti-Magnet Solution |
|---|---|---|
| Overvoltage (3-5x Rated) | Ferroresonance can cause overvoltages 3-5 times rated voltage | Anti-magnet design eliminates overvoltage risk |
| Equipment Damage | Destroys transformers, cables, surge arresters, and switchgear | Protects expensive indoor equipment from ferroresonance damage |
| Insulation Breakdown | Overvoltages cause insulation breakdown and failures | Prevents insulation failures and indoor system outages |
| Fire Hazard | Ferroresonance can cause fires in transformers and cables | Eliminates fire risk from ferroresonance in indoor locations |
| System Instability | Causes voltage oscillations and system instability | Maintains stable voltage and indoor system operation |
| Switching Operation Risk | Triggered by circuit breaker switching operations | Safe switching operations without ferroresonance in indoor systems |
| Ground Fault Risk | Single-phase ground faults can trigger ferroresonance | Prevents ferroresonance during indoor ground fault conditions |
| Ungrounded System Vulnerability | Ungrounded systems highly susceptible to ferroresonance | Essential protection for indoor ungrounded neutral systems |
| Resonant Grounded System Vulnerability | Petersen coil systems prone to ferroresonance | Critical for indoor arc suppression coil grounded networks |
| Indoor Three-Phase Anti-Magnet Anti-Resonance Application Scenario | Recommended Model | Key Advantage | Typical Installation |
|---|---|---|---|
| Indoor Ungrounded Systems | JSZJK-3/6/10 | Anti-magnet ferroresonance suppression for ungrounded neutral systems | Indoor substations with ungrounded neutrals |
| Indoor Resonant Grounded Systems | JSZJK-3/6/10 | Anti-resonance for Petersen coil (arc suppression coil) systems | Indoor networks with arc suppression coils |
| Indoor Substations | JSZJK-3/6/10 | 3×400VA thermal output + anti-magnet anti-resonance | Indoor distribution substations |
| Indoor Switchgear | JSZJK-3/6/10 | Anti-magnet design for indoor metal-clad switchgear | Indoor GIS, AIS, metal-clad switchgear |
| Indoor Cable Networks | JSZJK-3/6/10 | Prevents ferroresonance from indoor cable capacitance | Indoor cable distribution systems |
| Indoor Dual Metering + Grounding Protection | JDZJK-3/6/10 | Triple secondary for dual metering + grounding protection + anti-resonance | Indoor billing + monitoring + protection applications |
| Indoor High-Capacity Applications | JSZJK-3/6/10 | 3×400VA thermal limit output for extensive indoor loads | Indoor applications with extensive load requirements |
| Indoor 310mm Creepage Applications | JSZJK-3/6/10 | 310mm creepage distance for polluted indoor environments | Indoor polluted or contaminated locations |
| Feature | JSZJK-3/6/10 (Indoor Anti-Magnet Anti-Resonance) | JSZWK-3/6/10 (Outdoor Anti-Resonance) | JSZW-3/6/10 (Indoor Three-Phase) |
|---|---|---|---|
| Installation Type | Indoor | Outdoor | Indoor |
| Anti-Resonance | Yes (anti-magnet ferroresonance suppression) | Yes (ferroresonance suppression) | No |
| Anti-Magnet Technology | Yes | No | No |
| Thermal Limit Output | 3×400VA (dual), 3×200VA (triple) | 1000-1500VA | 600VA (dual), 450/450VA (triple) |
| Creepage Distance | 310mm | Standard outdoor | Standard indoor |
| Key Advantage | Anti-magnet + anti-resonance + 3×400VA output + 310mm creepage | Outdoor + anti-resonance + 1500VA output | Indoor three-phase + grounding protection + 600VA output |
| Typical Application | Indoor ungrounded systems, indoor resonant grounded systems | Outdoor ungrounded systems, outdoor resonant grounded systems | Indoor substations, indoor switchgear |
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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