Product Application
JDZ9-20Q electromagnetic voltage transformer is an indoor epoxy resin cast pillar-type full-duty product. It is suitable for relay protection and voltage and energy measurement in power systems with rated frequency of 50Hz and rated voltage of 20kV and below for indoor installations. When the transformer is excited at rated voltage, it can withstand an external short circuit for 1 second without damage and can be installed in various highvoltage switch cabinets.
Implementation Standards
GB20840.3-2013
Conditions of Use
● Ambient temperature between -40℃ and 70℃, with a daily average temperature not exceeding 35℃.
● No significant dust, smoke, corrosive gases, steam, or salt contamination.
● 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) |
| JDZ9-15Q | 15/0.1 | 0.2 0.5 1 3 | 80 200 350 500 | 1000 | 18/55/105 |
| JDZ9-20Q | 20/0.1 | 24/65/125 | |||
| JDZ9-15Q | 15/0.1/0.1 | 0.2/0.2 0.2/0.5 0.2/3 0.5/3 | 30/30 30/50 60/400 120/400 | 600 | 18/55/105 |
| JDZ9-20Q | 20/0.1/0.22 | 24/65/125 | |||
| 24/65/125 | |||||
| JDZX9-15QG | 15/√3/0.1/√3/0.1 | 0.2/6P(3P) 0.5/6P(3P) 1/6P(3P) 0.2/6P(3P) | 80/150 200/150 350/150 500/150 | 600 | 18/55/105 |
| JDZX9-20QG | 20/√3/0.1/√3/0.1 | 24/65/125 |
External Dimensions Diagram
Keywords
Electromagnetic voltage transformer
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Category
Product Application
JDZ9-20Q electromagnetic voltage transformer is an indoor epoxy resin cast pillar-type full-duty product. It is suitable for relay protection and voltage and energy measurement in power systems with rated frequency of 50Hz and rated voltage of 20kV and below for indoor installations. When the transformer is excited at rated voltage, it can withstand an external short circuit for 1 second without damage and can be installed in various highvoltage switch cabinets.
Implementation Standards
GB20840.3-2013
Conditions of Use
● Ambient temperature between -40℃ and 70℃, with a daily average temperature not exceeding 35℃.
● No significant dust, smoke, corrosive gases, steam, or salt contamination.
● 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) |
| JDZ9-15Q | 15/0.1 | 0.2 0.5 1 3 | 80 200 350 500 | 1000 | 18/55/105 |
| JDZ9-20Q | 20/0.1 | 24/65/125 | |||
| JDZ9-15Q | 15/0.1/0.1 | 0.2/0.2 0.2/0.5 0.2/3 0.5/3 | 30/30 30/50 60/400 120/400 | 600 | 18/55/105 |
| JDZ9-20Q | 20/0.1/0.22 | 24/65/125 | |||
| 24/65/125 | |||||
| JDZX9-15QG | 15/√3/0.1/√3/0.1 | 0.2/6P(3P) 0.5/6P(3P) 1/6P(3P) 0.2/6P(3P) | 80/150 200/150 350/150 500/150 | 600 | 18/55/105 |
| JDZX9-20QG | 20/√3/0.1/√3/0.1 | 24/65/125 |
External Dimensions Diagram
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