220kV Power Transformer
Application: suitable for power plant, substation, large-scale industrial etc.
Standards: IEC 60076-1, IEC 60076-2, IEC 60076-3, IEC 60076-5; ANSI, IEEE, AS, etc.
Parameters: Voltage range: 50/60Hz 220kV.
Capacity range: 31500kVA-360000kVA.
Features: 1.High security and reliability in operation.
2.Economic and efficient to reduce network loss and operation cost.
3.High short circuit strength and insulating strength.
4.Compact design, Low-noise and light in weight.
5.Customized transformers are available on your requirement.
6.Competitive short delivery time.
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Rated voltage: 240V;
Frequency: 50Hz;
Electromagnetic release type: C, D;
Number of poles: 1P+N;
Mechanical life: 20000 cycles;
Electrical life: 10000 cycles;
Rated short-circuit breaking capacity(Icu): 4500A;
Short-circuit breaking capacity(Ics): 4500A;
Rated impulse withstand voltage(Uimp): 4kV;
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eB Miniature Circuit Breaker
1.1 Function
protection of circuits against short-circuit currents,protection of circuits against overload currents,switch,isolation.
1.2 Selection
Technical data of the network at the point considered:the earthing systems (TNS, TNC),short-circuit current at the circuit-breaker installation point, which must always be less than the breaking capacity of this device,network normal voltage.
Tripping curves:
B curve (3-5In)
protection for people and big length cables in TN and IT
systems.
C curve (5-10In)
protection for resistive and inductive loads with low inrushcurrent.
D curve(10-20In)
protection for circuits which supply loads with high inrush current at the circuit closing
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1.3 Approvals and certificates
Detailed information, please refer to Certificates Table on the last page.
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Overload protection, short circuit protection and isolation. It is widely used in building power distribution, industrial power distribution, as well as control and protection for a variety of equipment with operating current not exceeding 125A.
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NB1-63DC DC Miniature Circuit Breaker
1.1 Certificates: CCC,CE,CB,TUV;
1.2 Standard: IEC/EN 60947-2 ,RoHS;
1.3 Rated voltage up to 1000V, Rated current up to 63A;
1.4 Protection of circuits against overload currents;
1.5 Protection of circuits against short-circuit currents;
1.6 NB1-63 DC circuit-breakers are used incommunication systems and PV DC systems.
