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.
Current transformer field tester was developed with high-end testing technology, large-scale electronic circuit design and accord with national related protocol . It has solved the problem of big working intensity,trival operation while on-site test of current transformer, voltage transformer. Meanwhile the product has a reliable performance,and the function is strong.
• EC, EE.EI and PQ type high frequency switch transformer
• EP type magnet shielding switch transformer
• RM type communication filter, aux power transformer
• ET, FT type linearity filter
• T (ring) type filter and switch transformer
• G (jar shape) switch transformer
• DR (I) type transformer
• T (ring) iron power core, DC filter inductor
• Application: switching power supplies, chargers, alarm system, TV and CRT monitor displays, UPS, VCD/DVD players, audio and visual equipment, OA machines and inverter
• Used in high-density installation with nice shielding
• Also can supply:
Switching power transformer
Pulse transformer
Telecom transformer
Audio frequency transformer
Isolated and line matching transformer
Ignition transformer
EE5 current sensor transformer
ADSL transformer
EFD series transformer
ER series transformer
RM series transformer
EP series transformer
EPC series transformer
EE series transformer
• Available in various types of transformers (PQ,CI, UI, EFD, EP, ER, EPC, POT, RM and EE)
• Suitable for EL/CCFL inverter or DC/DC converter
• Customized designs are accepted.
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