Application: | Electronic, Instrument, Position Sensor, Audio, Lighting |
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Type: | Current Transformer |
Phase: | Three |
Samples: |
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Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: | |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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summarize
The specific application of zero-sequence current protection can install a current transformer (CT) on each three-phase line, or let the three-phase wire pass through zero-sequence CT together, or install a zero-sequence CT on the neutral line N, and use these C.T to detect the sum of three-phase current vectors, that is, zero-sequence current Io, IA+IB+IC=Io. When the three-phase load connected to the line is completely balanced (no grounding fault, and do not consider the leakage current of the line and electrical equipment), Io=0; When the three-phase load connected to the line is unbalanced, then Io=IN, and the zero sequence current at this time is unbalanced current IN; When a ground fault occurs IN a phase, a single-phase ground fault current Id is generated. In this case, the detected zero-sequence current IO=IN+Id is the vector sum of the three-phase unbalanced current and the single-phase ground current.
service environment
Ambient temperature: -10ºC~40ºC · Atmospheric pressure: 80~110KPa
Air relative humidity: 90%(25ºC), 50%(40ºC)
Production picture
1. who are we? | We are based in Zhejiang, China, start from 2012,sell to Domestic Market(00.00%). There are total about 101-200 people in our office. |
2. how can we guarantee quality? | Always a pre-production sample before mass production; Always final Inspection before shipment; |
3.what can you buy from us? | Substation; Transformer, Switchgear, PV Combiner Box, PV Inverter |
4. why should you buy from us not from other suppliers? | 1. 12 year's Professional manufacturer of medium & high voltage power distribution equipment . 2. Excellent Supplier of The State Grid Cooperation of China 3. ODM OEM services 4. Strong research and development team , 5. Authoritative certificate |
5. what services can we provide? | Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU,Express Delivery; Accepted Payment Currency:USD,EUR,CNY; Accepted Payment Type: T/T,L/C,PayPal,Western Union,Cash; Language Spoken:English,Chinese,Russian |
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