Appliance to all kinds of high precise instrument,like single-phase or three-phase electronic type electric
DC immune High Precision Current Transformer Main characteristics
1. Adopt high magnetic permeability magnetic core, with high precision and good linearity and can resist DC component.
2.The range of applicable electric current is wide(5A-400A)
3.Primary input and secondary output ensure flexible and diversified forms as well as easy installation.
4.With a complete range of specification, products can be made according customers special requirements
Application
1. Energy meter ,power transducer ,precision power meter and energy monitoring devices.
2. Over current protection circuit of moter and other electrical appliances.
3. Meet the standard of IEC62053 and ANSI12.20
4. High linearity with DC immunity characteristics
5. Outstanding stability ,separate the external magnetic field interference
6. Operation Frequency:50--60Hz
7. High potential voltage 4000V/min
8. Meet ROHS requirements.
DC Immune current transformer
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- Accurate DC measurement; - Suitable for a wide range of current(from 1.5 to 100A); - Linear output current, high precision; - Compact, delicate appearance; - Encapsulated with epoxy resin to ensure strong insulation ability. DC Tolerance - In normal condition,the power net is sinusoidal AC at loop, positive nd negative waves are symmetry. But in some special Conditions, the circuit have DC, then positive and negative waves will not be symmetry. Common current transformer would be saturation under this condition, and the meter used this CT have large error, even can not work, so just DC lmmunity CT can solve this problems. - As following figure to test the DC error, 0.1 accuracy CT will be controlled within ±3.0%,0.2 accuracy class CT will be controlled within ±6.0%. |
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