Shanghai Gaosuo Electrical Co., Ltd.
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High Voltage Instrument Transformer

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Product Title

JLSZV-10 Three-phase Three-wire Dry-type Metering Box Combined Voltage and Current Instrument Transformer

The JLSZV-10 three-phase three-wire dry-type metering box (outdoor resin cast type) is suitable for electric energy metering in outdoor power systems with a rated frequency of 50Hz and rated voltages of 10kV and 6kV. It is an ideal replacement for older oil-immersed products. This series of products consists of two parts: a combined voltage and current instrument transformer and a metering instrument box.
JLSZV-10 Three-phase Three-wire Dry-type Metering Box Combined Voltage and Current Instrument Transformer

Product Details

Product Details

JLSZV-10 Three-phase Three-wire Dry-type Metering Box Combined Voltage and Current Instrument Transformer

JLSZV-10 Three-phase Three-wire Dry-type Metering Box | Outdoor Combined Voltage and Current Instrument Transformer

Product Overview

The JLSZV-10 three-phase three-wire dry-type metering box (outdoor resin cast type) is an improvement based on similar products. It is suitable for electric energy metering in outdoor power systems with a rated frequency of 50Hz and rated voltages of 10kV and 6kV. It is an ideal replacement for older oil-immersed products. The JLSZV-10 three-phase three-wire dry-type metering box uses epoxy resin cast insulation and can simultaneously sample voltage and current. It is the preferred solution for gateway metering and load control terminals in 10kV distribution networks.

This series of products consists of two parts: a combined voltage and current instrument transformer and a metering instrument box. The instrument transformer contains two independent voltage transformers and two independent current transformers, installed in phase A and phase C respectively. The outer wall of the combined instrument transformer is equipped with active and reactive watt-hour meters, as well as a test terminal block for testing. During operation, the metering box covers the meters to prevent tampering.

The core of the JLSZV-10 product is cast with epoxy resin, and the housing uses a steel drum to avoid damage to the epoxy cast body from direct sunlight and UV rays.

Model Meaning

JLSZV-10 Three-phase Three-wire Dry-type Metering Box Model Meaning Diagram

Technical Parameters

Product complies with standard: GB17201-1997

Accuracy Class: 0.2S, 0.5S, 0.5

Rated Short-time Thermal Current Multiple: 80lln-1s

Rated Dynamic Stability Current Multiple: 200lln

Rated Voltage Ratio: 10000/100

Rated Primary Current: 5-400A

Rated Secondary Current: 5A or 1A

Rated Capacity: Voltage part Class 0.2, 2×15VA; Current part Class 0.2S, 0.2, 2×10VA

Voltage Part Technical Parameters

Model Rated Voltage Ratio Accuracy Class and Rated Secondary Output Limit Output(VA) Rated Insulation Level(kV) JLSZV-6W 6000/100 0.2-2×20
0.5-2×50
Class 1-2×80
Class 3-2×200 2×400 7.2/32/60 JLSZV-10W 10000/100 0.2-2×20
0.5-2×50
Class 1-2×80
Class 3-2×200 2×400 12/42/75

Current Part Technical Parameters

Rated Primary Current (A) Single Ratio Accuracy Class and Rated Secondary Output 1s Thermal Stability Current (kA) Rated Dynamic Stability Current (kA)
0.2S 0.5S 0.5
7.5-10-157.51010151.02.5
10-15-20101.53.75
15-20-30152.46.0
20-30-4020, 253.07.5
30-40-50304.511
40-50-7640820
50-75-10050922.5
75-100-150751230
100-150-2001001640
150-200-3001502460
200-300-400200, 2503280
300-400-5003004580
400-500-60040060100
500-600-800500-10080100
600-800-1000500-10080100

External and Installation Dimensions

JLSZV-10 Three-phase Three-wire Dry-type Metering Box External and Installation Dimensions Diagram

Ensure that the JLSZV-10 three-phase three-wire dry-type metering box is installed with the phase sequence A-C corresponding correctly. The secondary cable shielding layer should be grounded at a single point reliably to prevent interference. Combined error verification should be performed at least once a year, and the junction box and meter box lock should be intact to prevent tampering.

JLSZV-10 Three-phase Three-wire Dry-type Metering Box | Outdoor Combined Voltage and Current Instrument Transformer

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