Product Overview
The JSZJK(F)R2 series tri-phase anti-ferroresonance voltage transformer is an outdoor dry-type measurement device designed for 3kV, 6kV, 10kV, 11kV and 12kV medium-voltage distribution systems. This specialized voltage transformer features advanced anti-ferroresonance technology to prevent dangerous overvoltages and harmonic distortions in power networks, ensuring stable and reliable voltage measurement for protection and metering applications.
Available in three voltage specifications: JSZJK(F)R2-3W (3kV class), JSZJK(F)R2-6W (6kV class), and JSZJK(F)R2-10W (10kV class, also suitable for 11kV and 12kV international standards). The dry-type epoxy resin insulation provides excellent weather resistance and maintenance-free operation. Multiple accuracy classes (0.2, 0.5, 1, 3) and rated outputs (60-600VA) accommodate various measurement requirements. Compliant with GB1207-2006 and IEC60044-2:2003 standards.
Product Display
Application Position
The JSZJK(F)R2 series is installed in outdoor switchgear, substations, and distribution networks where ferroresonance phenomena may occur. The anti-ferroresonance design prevents dangerous overvoltages caused by nonlinear interactions between transformer inductance and system capacitance. The dry-type construction eliminates oil maintenance requirements, making it ideal for remote installations and harsh environmental conditions.
Main Applications
- 3kV, 6kV, 10kV, 11kV and 12kV outdoor distribution networks
- Substations prone to ferroresonance phenomena
- Industrial facilities with medium-voltage incoming supply
- Protection relay voltage measurement
- Power quality monitoring and metering applications
- Projects requiring anti-ferroresonance protection
- Environments requiring maintenance-free operation
Application Case Studies
Application Scenario 1: Substation Ferroresonance Protection
Utilities deploy the JSZJK(F)R2 series anti-ferroresonance voltage transformer in substations where switching operations or single-phase faults may trigger ferroresonance. The specialized core design and damping circuits prevent sustained overvoltages that could damage equipment and disrupt power supply. The dry-type construction ensures reliable operation without oil maintenance in remote substations.
Application Scenario 2: Industrial Medium-Voltage Metering
Industrial facilities with 6kV or 10kV incoming supply require accurate voltage measurement for power quality monitoring and protection coordination. The JSZJK(F)R2 series provides precise voltage signals with multiple accuracy classes (0.2, 0.5, 1, 3) to meet different measurement requirements. The anti-ferroresonance design protects sensitive metering equipment from voltage transients.
Application Fit
Suitable For
- Outdoor 3kV, 6kV, 10kV, 11kV and 12kV voltage measurement
- Substations with ferroresonance risk
- Industrial facilities with medium-voltage supply
- Protection relay voltage input
- Power quality monitoring applications
- Environments requiring maintenance-free operation
- Projects requiring GB1207-2006 and IEC60044-2:2003 compliance
Not Recommended For
- Indoor-only compact switchgear applications
- Current measurement applications (use CT instead)
- High-voltage systems above 12kV (use higher voltage class models)
- Applications requiring oil-immersed design for specific insulation requirements
Installation Conditions
- Installation position: Outdoor switchgear, substations, or distribution points
- Ambient temperature: -5°C to +40°C
- Altitude: ≤ 1000m (standard), higher altitude available on request
- Insulation: Dry-type epoxy resin
- Frequency: 50Hz or 60Hz
- Grounding: Connect neutral terminal per local electrical codes
- Maintenance: Minimal maintenance required (dry-type design)
Technical Parameters
The JSZJK(F)R2 series is an outdoor dry-type tri-phase anti-ferroresonance voltage transformer for 3kV, 6kV, 10kV, 11kV and 12kV systems. Operating temperature -5°C to +40°C, compliant with GB1207-2006 and IEC60044-2:2003. Features anti-ferroresonance design, dry-type epoxy resin insulation, and multiple accuracy classes.
Model Variants
| Model | System Voltage |
International Voltage |
Rated Insulation Level (kV) |
Application |
|---|---|---|---|---|
| JSZJK(F)R2-3W | 3kV | 3.3kV | 3.6/23/40 | Chinese standard 3kV systems |
| JSZJK(F)R2-6W | 6kV | 6.6kV | 7.2/32/60 | Chinese standard 6kV systems |
| JSZJK(F)R2-10W | 10kV | 11kV / 12kV | 12/42/75 | Chinese and international standards |
VT Data – Standard
| Rated Voltage Ratio (V) |
Accuracy Class |
Rated Output (VA) |
Limit Output (VA) |
Rated Insulation Level (kV) |
|---|---|---|---|---|
| 3000/√3 : 100/√3 : 100 | 0.2 | 60 | 1200 | 3.6/23/40 |
| 6000/√3 : 100/√3 : 100 | 0.5 | 120 | 7.2/32/60 | |
| 10000/√3 : 100/√3 : 100 | 1 | 240 | 12/42/75 | |
| 10000/√3 : 100/√3 : 100 | 3 | 600 | 12/42/75 |
VT Data – Extended
| Rated Voltage Ratio (V) |
Rated Output (VA) |
Limit Output (VA) |
Rated Insulation Level (kV) |
|---|---|---|---|
| 6000/√3 : 100/√3 : 220/√3 : 100 | 15/150 | 600/600 | 7.2/32/60 |
| 10000/√3 : 100/√3 : 220/√3 : 100 | 30/150 | 600/600 | 12/42/75 |
Installation & Dimensions
Dimension Reference
| View | Key Dimensions |
Application Note |
|---|---|---|
| Front View | Spacing 180-180-200mm; Height 385mm | Four units (A, B, C, N) with M12 bolts |
| Side View | Spacing 250mm | Primary bushing and secondary terminal box |
| Top View | Width 100-100mm; Length 560/533mm | Unit arrangement and mounting positions |
Wiring Diagram
Installation Guidelines
- Install in outdoor switchgear or substation with adequate ventilation
- Connect primary terminals A, B, C to three-phase system
- Connect neutral terminal N to system ground
- Secondary terminals a, b, c provide voltage output to meters and protection devices
- Ensure proper grounding of secondary circuit neutral point
- Verify voltage ratio matches system requirements before commissioning
- Check insulation resistance before energizing
Anti-Ferro Features
The JSZJK(F)R2 series incorporates advanced anti-ferroresonance technology including:
- Specialized core design to prevent magnetic saturation
- Integrated damping circuits to suppress oscillations
- Optimized winding configuration to reduce harmonic distortion
- Dry-type insulation to eliminate oil-related ferroresonance risks
Standards
The JSZJK(F)R2 series anti-ferroresonance voltage transformer complies with GB1207-2006 and IEC60044-2:2003 for voltage transformers, ensuring compatibility with both Chinese and international standards for medium-voltage measurement applications.
Selection Guide
Select by system voltage: Choose JSZJK(F)R2-3W for 3kV systems, JSZJK(F)R2-6W for 6kV systems, or JSZJK(F)R2-10W for 10kV, 11kV and 12kV systems.
Select by voltage ratio: Choose standard configuration (100/√3 : 100V) or extended configuration (100/√3 : 220/√3 : 100V) based on measurement requirements.
Select by accuracy class: Use 0.2 for high-precision metering, 0.5 for standard metering, 1 for general measurement, or 3 for indication purposes.
Select by rated output: Choose rated output (60-600VA) based on connected burden requirements.
Ordering Information
When ordering the JSZJK(F)R2 series anti-ferroresonance voltage transformer, please specify:
- Model: JSZJK(F)R2-3W, JSZJK(F)R2-6W, or JSZJK(F)R2-10W
- System voltage: 3kV, 6kV, 10kV, 11kV, or 12kV
- Voltage ratio: Standard or extended configuration
- Accuracy class: 0.2, 0.5, 1, or 3
- Rated output: 60, 120, 240, or 600 VA
- Frequency: 50Hz or 60Hz
- Installation type: Outdoor
- Quantity
FAQs