Product Overview
The JLSZV-6/10W combined transformer is an outdoor stainless steel corrosion-resistant combined transformer designed for 6kV and 10kV medium-voltage distribution systems. This CT PT combined transformer integrates voltage transformer (PT) and current transformer (CT) functions in a single epoxy cast-resin assembly with stainless steel enclosure, providing accurate current and voltage signals for energy metering and protection applications in harsh outdoor environments.
As a 6kV 10kV combined transformer with multiple voltage class options (3.6/25/40kV, 7.2/32/60kV, 12/42/75kV), the JLSZV-6/10W is suitable for outdoor pole-mounted installations, compact substations, and industrial distribution systems requiring high-accuracy metering. The stainless steel metering box provides superior corrosion resistance, making it ideal for coastal areas, chemical plants, and environments with high humidity or salt spray exposure.
This corrosion-resistant outdoor metering box 6kV 10kV features a compact design with integrated meter box, supporting current range from 5A to 200A and complying with GB17201-2006 standards for precision metering applications in demanding environments.
Product Display
[Product images to be added]
Application Position
The JLSZV-6/10W is installed outdoors on poles, in substations, or at distribution points. The stainless steel enclosure provides superior protection against corrosion, weather, and mechanical damage, ensuring long-term reliability in harsh environments. The primary terminals connect to the three-phase 6kV or 10kV circuit, while the secondary terminal box supplies voltage and current signals to active energy meters, reactive energy meters, and monitoring instruments.
Main Applications
- 6kV and 10kV outdoor distribution networks requiring pole-mounted metering
- Compact substations with integrated CT PT measurement
- Industrial distribution systems with 6kV or 10kV incoming supply
- High-accuracy revenue metering for utility billing
- Protection relay applications requiring precise current signals
- Outdoor metering cabinets in harsh environments
- Projects requiring GB17201-2006 compliance
Application Case Studies
Application Scenario 1: Coastal Distribution Metering
Utilities deploy the JLSZV-6/10W stainless steel combined transformer in coastal areas for revenue billing and load monitoring in 6kV and 10kV distribution networks. The corrosion-resistant stainless steel enclosure provides reliable performance in environments with salt spray exposure and high humidity, where standard enclosures would degrade rapidly. The integrated CT PT design reduces installation space and wiring complexity.
Application Scenario 2: Chemical Plant Metering
Chemical plants and industrial facilities with 6kV or 10kV incoming supply require accurate energy measurement in corrosive atmospheres. The JLSZV-6/10W stainless steel combined transformer resists chemical vapors and corrosive gases that would damage standard enclosures. The corrosion-resistant design ensures long-term stability without maintenance in demanding chemical processing environments.
Application Fit
Suitable For
- Outdoor 6kV and 10kV metering points requiring pole-mounted installation
- Compact substations with integrated CT PT measurement
- Industrial facilities with 6kV or 10kV incoming supply
- Applications requiring current range from 5A to 200A
- Projects requiring GB17201-2006 compliance
- Distribution networks requiring high-accuracy metering
- Environments requiring epoxy cast-resin insulation
Not Recommended For
- Indoor-only compact switchgear applications
- Applications requiring separate CT and PT bodies
- Protection-only applications where metering accuracy is not required
- 35kV system applications (use JLSZV-35W model instead)
- Applications with space constraints requiring smaller footprint
Installation Conditions
- Installation position: Outdoor pole-mounted, substation, or distribution points
- Ambient temperature: -15°C to +55°C
- Maximum altitude: ≤ 4500m (no derating required)
- Enclosure: Stainless steel corrosion-resistant construction
- Insulation: Epoxy cast-resin internal insulation
- Grounding: Connect grounding terminal per local electrical codes and metering standards
- Maintenance: Stainless steel enclosure requires minimal maintenance, even in corrosive environments
Technical Parameters
The JLSZV-6/10W is an outdoor stainless steel corrosion-resistant combined transformer for 6kV and 10kV systems with three-phase design. Operating temperature -15°C to +55°C, altitude up to 4500m, compliant with GB17201-2006. Features stainless steel enclosure for superior corrosion resistance and epoxy cast-resin internal insulation.
Voltage Transformer Data
| Rated Voltage Ratio |
Accuracy Class |
Rated Output |
Limit Output |
Rated Insulation Level (kV) |
|---|---|---|---|---|
| 3000/100 | 0.2 | 15 VA | 300 VA | 3.6/25/40 |
| 6000/100 | 0.5 | 30 VA | 7.2/32/60 | |
| 10000/100 | 0.5 | 30 VA | 12/42/75 |
Current Transformer Data
| Rated Current Ratio |
Accuracy Class |
Rated Output |
1s Thermal Current |
Dynamic Current |
Rated Insulation Level (kV) |
|---|---|---|---|---|---|
| 5 – 200/5 | 0.2S / 0.2 | 7.5 / 10 VA | 80 × I1n | 200 × I1n | 12/42/75 |
Installation & Dimensions
Dimension Reference
| View | Key Dimensions |
Application Note |
|---|---|---|
| Front View | Width 436mm; Height 370mm; Spacing 218mm | Three bushings with terminal box |
| Side View | Height 675+2mm; Width 306/398mm | Profile with nameplate |
| Top View | Length 628mm; Width 310/360mm | Six connection points layout |
| Meter Box | Width 440mm; Base 480mm; Depth 198mm | Integrated watt-hour meter compartment |
Wiring Diagram
[Wiring diagram to be added]
Installation Guidelines
- Confirm AP1/AP2 and CP1/CP2 terminal sequence before commissioning
- CT secondary circuits must not be open-circuited during operation
- PT secondary terminals provide voltage input to meters and monitoring devices
- CT secondary terminals provide current input to active and reactive energy meters
- Grounding and meter box wiring should follow the approved project wiring diagram
- Epoxy cast-resin construction must be properly grounded for safety
Standards Compliance
The JLSZV-6/10W combined transformer complies with GB17201-2006 for combined instrument transformers. For international projects, compliance should be aligned with applicable IEC instrument transformer standards and local utility metering rules.
Selection Guide
Select by system voltage: Use JLSZV-6/10W for 6kV systems (7.2kV class insulation) or 10kV systems (12kV class insulation).
Select by current ratio: Determine CT primary current according to actual load current. Supports 5A to 200A primary current range.
Select by metering accuracy: Use 0.2S CT accuracy for high-accuracy energy metering. PT accuracy classes include 0.2 and 0.5.
Select by voltage ratio: Choose 3000/100, 6000/100, or 10000/100 according to network voltage and meter input requirement.
Ordering Information
When ordering the JLSZV-6/10W combined transformer, please specify:
- Model: JLSZV-6/10W
- System voltage: 6kV or 10kV
- PT ratio: 3000/100, 6000/100, or 10000/100
- CT primary current: 5A to 200A (specify exact value)
- CT secondary current: 5A
- CT accuracy class: 0.2S or 0.2
- PT accuracy class: 0.2 or 0.5
- Installation type: Outdoor pole-mounted
- Quantity