Transformers,Distribution and Power Transformer,Varivolt
Safety Transformers
Diesel Generators
Industrial Panels
Stabilizers
Energy Saver
Industrial Panels
DC immune Current transformer for Electricity meter
-Adopted high permeability core, high accuracy , good linearity;
-Anti-combustion plastic case ;
-Encapsulated with epoxy resin with strong insulation ability;
-DC immune function with good DC error , conform to IEC 62053-21;
- Customised shield to against the external magnetic field .
These Current Transformers are manufactured in Wound Primary type and Window type construction. It is manufactured using Automatic Pressure Gelation casting and Vacuum Casting Technique. It ranges from 3.3 kV to 33 kV.
We manufacture highly efficient and accurate resin cast potential transformers. These resin cast potential transformers are used in ac circuits, for the purpose of measuring large voltages. Their main function is to reduce the supply voltage to a small value so that it can be easily measured with standard low range ac instruments of moderate size and capacity. There are many advantages of using resin cast potential transformers for range extension of ac meters. We also offer resin cast potential transformers of dual purpose metering & protection that are also commonly used.
Transformer Standard current transformer are also called precision current transformers, current transformer standards, standard CT and current transformer standards. Transformer standards are divided into current transformer standards and voltage transformer standards. Standard current transformers are used in the error test of transformers. Used as a current transformer calibration standard
technical parameter
1. Temperature:
2. Relative humidity
3. Rated Primary Current:5-5000A 5A,1A
4.Rated secondary current:5 1A
5 Accuracy Class 0.05S
6. Allow long-term work under the rated current; More than120A across the core.
Precautions:
1. The current of standard CT and tested CT must be the same in CT calibration.
2. Follow the given wiring diagram strictly.
3. Test whether the load box is accurate or not before calibrating the transformer.
4. Forbid secondary winding opening during the calibration.
5. Select demagnetization before calibration.The wiring diagram is shown in figure 5.
Short out the secondary winding before cutting off the power when the demagnetization is finished.
6.Principle wiring diagram of CT with large current generator is similar to above diagram. They are the same except the output winding of large current generator and primary winding of transformer are the same one.
Transformer Standard current transformer are also called precision current transformers, current transformer standards, standard CT and current transformer standards. Transformer standards are divided into current transformer standards and voltage transformer standards. Standard current transformers are used in the error test of transformers. Used as a current transformer calibration standard
technical parameter
Temperature -5 40
Relative humidity 80%
Rated Primary Current 5-5000A 5A,1A
Rated secondary current 5A 1A
Accuracy Class 0.05S
Allow long-term work under the rated current; More than120A across the core.
Precautions
The current of standard CT and tested CT must be the same in CT calibration.
Follow the given wiring diagram strictly.
Test whether the load box is accurate or not before calibrating the transformer.
Forbid secondary winding opening during the calibration.
Select demagnetization before calibration.The wiring diagram is shown in figure 5.
Short out the secondary winding before cutting off the power when the demagnetization is finished.
Principle wiring diagram of CT with large current generator is similar to above diagram. They are the same except the output winding of large current generator and primary winding of transformer are the same one.
We are one of the leading manufacturer of all types cts of any ratio. We manufacture both outdoor and indoor types. We manufacture both resin cast & oil cooled cts
