Product Application
This series of voltage transformers can be used for voltage and energy measurement and relay protection in AC 60Hz power systems. This product is cast with high-quality outdoor resin. The product design concept is novel and unique, the workmanship is fine, and it is cast with advanced process equipment. There are a full range of products to meet various customer needs. The product has the characteristics of small size, light weight, beautiful appearance, easy installation, excellent electrical performance, safe and reliable operation, etc.
Implementation Standards
GB/T20840.1、IEC 61869-1 "Instrument Transformers - Part 1: General requirements" GB/T20840.3、IEC 61869-3 "Instrument Transformers - Part 3: Supplementary requirements for electromagnetic voltage transformers"
Conditions of Use
● Ambient temperature between -40℃ and 70℃, daily average temperature not exceeding 35℃.
● No significant dust, smoke, corrosive gases, steam, or salt pollution.
● Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%.
● Altitude not exceeding 1000 meters.
Wiring Diagram
Technical Parameters Table
| Model | Rated Voltage Ratio (kV) | Accuracy Class and Accuracy Class Combination | Rated Secondary Output (VA) | Thermal Limit Output (VA) | Rated Insulation Level (kV) |
| JDZW-20 | 20/0.1 | 0.2 0.5 1 3 | 40 100 250 500 | 800 | 24/65/125 |
| 20/0.22 | |||||
| JDZW-20 | 20/0.1/0.1 | 0.2/0.2 0.2/0.5 0.5/0.5 | 20/20 20/30 50/50 | 400/400 | 24/65/125 |
| 20/0.1/0.22 | 0.2/3 0.5/3 | 40/300 80/300 | 500/800 | ||
| JDZW-20G | 20/√3/0.1/√3/0.1 | 0.2/6P 0.5/6P | 30/100 60/100 | 600 | 24/65/125 |
| 20/√3/0.1/1/√3/0.1/3 | 0.2/0.5/6P | 15/20/100 | 300/300 |
Dimensions
Keywords
Voltage transformer
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Product Application
This series of voltage transformers can be used for voltage and energy measurement and relay protection in AC 60Hz power systems. This product is cast with high-quality outdoor resin. The product design concept is novel and unique, the workmanship is fine, and it is cast with advanced process equipment. There are a full range of products to meet various customer needs. The product has the characteristics of small size, light weight, beautiful appearance, easy installation, excellent electrical performance, safe and reliable operation, etc.
Implementation Standards
GB/T20840.1、IEC 61869-1 "Instrument Transformers - Part 1: General requirements" GB/T20840.3、IEC 61869-3 "Instrument Transformers - Part 3: Supplementary requirements for electromagnetic voltage transformers"
Conditions of Use
● Ambient temperature between -40℃ and 70℃, daily average temperature not exceeding 35℃.
● No significant dust, smoke, corrosive gases, steam, or salt pollution.
● Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%.
● Altitude not exceeding 1000 meters.
Wiring Diagram
Technical Parameters Table
| Model | Rated Voltage Ratio (kV) | Accuracy Class and Accuracy Class Combination | Rated Secondary Output (VA) | Thermal Limit Output (VA) | Rated Insulation Level (kV) |
| JDZW-20 | 20/0.1 | 0.2 0.5 1 3 | 40 100 250 500 | 800 | 24/65/125 |
| 20/0.22 | |||||
| JDZW-20 | 20/0.1/0.1 | 0.2/0.2 0.2/0.5 0.5/0.5 | 20/20 20/30 50/50 | 400/400 | 24/65/125 |
| 20/0.1/0.22 | 0.2/3 0.5/3 | 40/300 80/300 | 500/800 | ||
| JDZW-20G | 20/√3/0.1/√3/0.1 | 0.2/6P 0.5/6P | 30/100 60/100 | 600 | 24/65/125 |
| 20/√3/0.1/1/√3/0.1/3 | 0.2/0.5/6P | 15/20/100 | 300/300 |
Dimensions
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No. 95, West Section, Century Road, Pulandian District, Dalian City, Liaoning Province
