high accuracy 0.01 Standard current transformer price
Product description
The device is used as the current transformer calibration standard in the error test of the instrument transformer, also used to verify CT whose accuracy level is two levels lower or less then the standard current transformer.
Product feature
1.The instrument is composed of primary winding and secondary winding.
2.Self-calibration of current ratio of 5/5 or 1/1
3.With casters for easy handling
Product parameter
1. Temperature: -5- +40ºC
2. Humidity: <80%
3. Capacity: 5VA, 1VA COSφ=1
4. Primary current: 5-2000A
5. Secondary current: 5A, 1A
6. Accuracy level: 0.05S level
7. Rated voltage: 500V
8. Frequency: 50Hz
9. Long-term work under rated current is allowed, and the core is above 120A.
Notice
1. When verifying the current transformer, the current ratio of the precision current transformer and the current transformer under inspection must be the same.
2. Before verifying CT, must first test whether the current load box is accurate.
3. During the verification process, it is strictly forbidden to turn off the secondary winding.
4. Demagnetization is required before verifying the current transformer. It is recommended to use closed-circuit demagnetization. After demagnetization is completed, the secondary winding should be short-circuited before cutting off the power supply.
This standard current transformer can be used in combination with a current load box. The introduction and parameters of the current load box are as follows:
Overview of current load box
The current transformer load box is an ideal instrument for instrument transformer calibration and field instrument transformer error testing. It provides various effective loads.
Feature
Large output capacity and strong stability;
Wide current load range, up to 200%;
The rated current is 5A or 1A, and the two can also be integrated. Special load numbers can be customized.
Technical index
1. Environmental conditions
Temperature: 5-40ºC Humidity: 80(25ºC)
Altitude: 1500m Power frequency: 50Hz
2. Rated capacity: 2.5-80VA (O-3.2Ω)
3. Measuring range: 5%-120%
4. Secondary current: 5A, 1A
5. Power factor: 0.8, 1.0
6. Accuracy: ±3
7. Test voltage: 2kV
After-sales service
All users who purchase the instrument enjoy the following after-sales service:
1. All quality problems of the instrument will be repaired free of charge by our company within one year.
2. Our company is responsible for the long-term maintenance of the instrument used for more than one year, and appropriate material fees will be charged.
3. If the instrument breaks down, please ask a full-time maintenance person or send it back to our company for repair. Do not disassemble the instrument by yourself, otherwise our company will not be responsible for self-damage.
