JLSZV-6/10W Outdoor Epoxy Cast-Resin Combined Transformer with Iron Enclosure

Product Overview

The JLSZV-6/10W combined transformer is an outdoor epoxy cast-resin three-phase 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 epoxy cast-resin assembly with iron enclosure, 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 (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 iron enclosure metering transformer design ensures excellent mechanical protection and durability in standard outdoor environments.

This 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.

Product Display

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Application Position

The JLSZV-6/10W is installed outdoors on poles, in substations, or at distribution points. The iron enclosure provides robust mechanical protection against weather and physical 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 standard environments
• Projects requiring GB17201-2006 compliance

Application Case Studies

Application Scenario 1: Pole-Mounted Distribution Metering
Utilities deploy the JLSZV-6/10W combined transformer on concrete poles for revenue billing and load monitoring in 6kV and 10kV distribution networks. The compact iron enclosure design provides reliable mechanical protection in standard outdoor environments with temperature variations. The integrated CT PT design reduces installation space and wiring complexity.

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 200A, accommodating various load conditions. The iron enclosure ensures long-term mechanical stability in standard industrial 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
• Standard outdoor environments without extreme corrosion

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)
• Coastal or chemical environments requiring stainless steel enclosure

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: Iron enclosure with protective coating
• Insulation: Epoxy cast-resin internal insulation
• Grounding: Connect grounding terminal per local electrical codes and metering standards
• Maintenance: Iron enclosure requires periodic inspection for coating integrity

Technical Parameters

The JLSZV-6/10W is an outdoor epoxy cast-resin 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 iron enclosure for mechanical protection and epoxy cast-resin internal insulation.

Voltage Transformer Data

Current Transformer Data

Installation & Dimensions

Dimension Reference

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
• Iron enclosure 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

FAQs