Product Overview
The JLSZY(F)-6.10W combined transformer is an outdoor silicon rubber and epoxy cast-resin three-phase three-component measurement device 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 assembly with silicon rubber insulation, providing accurate current and voltage signals for energy metering and protection applications in outdoor substations and distribution networks.
As a 6kV 10kV combined transformer with multiple voltage class options (7.2/32/60kV and 12/40/75kV), the JLSZY(F)-6.10W is suitable for outdoor pole-mounted installations, compact substations, and industrial distribution systems requiring high-accuracy metering. The silicon rubber combined transformer design ensures excellent insulation performance, UV resistance, and long-term reliability in demanding outdoor environments.
This outdoor metering box 6kV 10kV features an oval base design with three-phase three-component configuration, supporting current range from 5A to 300A and complying with GB20840.4-2015 standards for precision metering applications.
Product Display
[Product images to be added]
Application Position
The JLSZY(F)-6.10W is installed outdoors on poles, in substations, or at distribution points. The silicon rubber and epoxy cast-resin construction provides superior protection against weather, UV radiation, and mechanical damage. 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 with UV exposure
- Projects requiring GB20840.4-2015 compliance
Application Case Studies
Application Scenario 1: Pole-Mounted Distribution Metering
Utilities deploy the JLSZY(F)-6.10W combined transformer on concrete poles for revenue billing and load monitoring in 6kV and 10kV distribution networks. The silicon rubber insulation provides superior UV resistance and weather protection in outdoor environments with intense sunlight and temperature variations. The three-phase three-component design ensures accurate measurement across all phases.
Application Scenario 2: Industrial Substation Metering
Industrial facilities with 6kV or 10kV incoming supply require accurate energy measurement for cost allocation and load monitoring. The 6kV 10kV combined transformer supports current range from 5A to 300A, accommodating various load conditions. The oval base design provides stable mounting and reduces installation footprint in space-constrained substations.
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 300A
- Projects requiring GB20840.4-2015 compliance
- Environments with high UV exposure requiring silicon rubber insulation
- Distribution networks requiring three-phase three-component metering
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 JLSZY-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)
- Insulation: Silicon rubber and epoxy cast-resin construction
- Grounding: Connect grounding terminal per local electrical codes and metering standards
- Maintenance: Silicon rubber construction requires minimal maintenance in outdoor environments
Technical Parameters
The JLSZY(F)-6.10W is an outdoor silicon rubber and epoxy cast-resin combined transformer for 6kV and 10kV systems with three-phase three-component design. Operating temperature -15°C to +55°C, altitude up to 4500m, compliant with GB20840.4-2015. Features silicon rubber insulation, oval base design, and current range from 5A to 300A.
Voltage Transformer Data
| Rated Voltage Ratio |
Accuracy Class |
Rated Output |
Rated Insulation Level (kV) |
|---|---|---|---|
| 6000/√3 : 100/√3 : 100/3 | 0.2 / 0.5 | 30 VA | 7.2/32/60 |
| 10000/√3 : 100/√3 : 100/3 | 0.2 / 0.5 | 40 VA | 12/40/75 |
| 11000/√3 : 110/√3 : 110/3 | 0.2 / 0.5 | 60 VA | 12/40/75 |
Current Transformer Data
| Rated Current Ratio |
Accuracy Class |
Rated Output |
1s Thermal Current |
Dynamic Current |
Rated Insulation Level (kV) |
|---|---|---|---|---|---|
| 5 – 300/5 | 0.2S | 15 VA | 60 × I1n | 150 × I1n | 12/42/75 |
| 5 – 300/5 | 0.2 | 15 VA | 60 × I1n | 150 × I1n | 12/42/75 |
| 5 – 300/5 | 0.5 | 20 VA | 60 × I1n | 150 × I1n | 12/42/75 |
Installation & Dimensions
Dimension Reference
| View | Key Dimensions |
Application Note |
|---|---|---|
| Front View | Width 684mm; Spacing 227mm | Three insulators with nameplate |
| Side View | Height 510±3mm / 590±3mm; Base 364mm | Profile with secondary terminal box |
| Top View | Length 440mm; Width 350/330mm | Oval base with mounting holes |
Wiring Diagram
[Wiring diagram to be added]
Installation Guidelines
- Confirm AP1/AP2, BP1/BP2 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
- Silicon rubber construction must be properly grounded for safety
Standards Compliance
The JLSZY(F)-6.10W combined transformer complies with GB20840.4-2015 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 JLSZY(F)-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 300A 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 6000/√3 : 100/√3 : 100/3, 10000/√3 : 100/√3 : 100/3, or 11000/√3 : 110/√3 : 110/3 according to network voltage and meter input requirement.
Ordering Information
When ordering the JLSZY(F)-6.10W combined transformer, please specify:
- Model: JLSZY(F)-6.10W
- System voltage: 6kV or 10kV
- PT ratio: 6000/√3 : 100/√3 : 100/3, 10000/√3 : 100/√3 : 100/3, or 11000/√3 : 110/√3 : 110/3
- CT primary current: 5A to 300A (specify exact value)
- CT secondary current: 5A
- CT accuracy class: 0.2S, 0.2, or 0.5
- PT accuracy class: 0.2 or 0.5
- Installation type: Outdoor pole-mounted
- Quantity
FAQs