JDZ-10 Single Phase Voltage Transformer Series
Voltage transformer (also called PT): the transformer that converts the primary high voltage into the secondary low voltage (generally 100V or 100/V, 100/3V) to supply power to instruments and meters.
Voltage transformers can be divided into measuring transformers, measuring transformers and protection transformers according to their purposes. It can be divided into indoor and outdoor according to the use scenario.
description
Product introduction
Voltage transformer for metering: used for voltage metering, with the conventional accuracy class of 0.2.
Voltage transformer for measurement: used for voltage monitoring, with the conventional accuracy class of 0.5;
Protection voltage transformer: a voltage transformer that transmits information signals to relay protection or control devices, with protection multiples of 3P and 6P.
This product is a conventional transformer developed by our company, which is applicable to 10kV voltage lines, and is widely used for metering voltage transformers of power customers and power package customers.
Application scenario
The transformer is mainly installed and used in the electric complete equipment, ring network cabinet, switching station, substation and other scenes;
The ambient temperature is between – 5 ℃ and 50 ℃, and the daily average temperature does not exceed 30 ℃;
The altitude shall not exceed 1000m;
The voltage transformer is allowed to operate for a long time under 1.2 times of the rated voltage, and the secondary winding of the voltage transformer shall not be short circuited, otherwise the voltage transformer will be burnt.
Technical parameter
Product standardsGB/T20840.1 General Technical Requirements for Transformer
GB/T20840.3 Supplementary Technical Requirements for Voltage Transformers
GB/T311.1 Insulation Coordination of High Voltage Transmission and Transformation Equipment
GB/T 16927.1 High Voltage Test Technology Part I General Test Requirements
| Type | Rated transformation ratio (kV) | Accuracy class combination | rated output (VA) | Limited output (VA) | Rated insulation level (kV) | Weight (kg) |
| JDZ-10 | 3/0.1 6/0.1 10/0.1 | 0.2 0.5 1 3 | 15 20 30 60 | 300 | 3.6/25/40 (3kVsystem） 7.2/30/60 (6kVsystem) 12/42/75 (10kVsystem) | 20 |
| 3/0.22 6/0.22 10/0.22 | 5 | 500 | 500 | |||
| 3/0.1/0.1 6/0.1/0.1 10/0.1/0.1 | 0.2/0.2 0.2/0.5 0.5/0.5 | 15/15 | 2×150 | |||
| 3/0.1/0.22 6/0.1/0.22 10/0.1/0.22 | 0.2/5 0.5/5 | 15/500 | 500 |
GB/T 16927.1 High Voltage Test Technology Part I General Test Requirements
Outline and installation dimension drawing
