72.5kV HV SF6 circuit breaker
Abubuwa gaba
| Muhimmiya | ROCKWILL |
| Model NO. | 72.5kV HV SF6 circuit breaker |
| Rated Voltage | 72.5kV |
| Raitidu kọ̀ọ̀kan | 4000A |
| Rated Frequency | 50/60Hz |
| Rated short-circuit breaking current | 40kA |
| Siri | LW36-72.5 |
Bayani na sayen daga mai wuyaci
Nà'yanarwa na Product:
LW36-72.5 self-energy outdoor HV AC sulfur hexafluoride circuit breaker shine na nà'yanarwa na outdoor three-phase porcelain column electrical equipment wanda yana amfani a cikin AC 50Hz ko 60Hz, 72.5kV electricity systems a wurare da yawa (don electric stations a wurare masu hagu da -42'℃). Wannan nà'yanarwa zai iya aiki da dama kuma zai amfani a matsayin connection circuit breaker.
Muhimmanci mutanen:
Kwamfuta -kwamfuta mai tsari ta aiki: kwamfuta mai tsari ta aiki tare da 5500A. 50kA.
Tsakiyar aiki mai tsauri -tsakiyar aiki mai tsauri: 50kAx21times; tsakiyar aiki mai hankali: 10000 times.
Aiki mai tsauri.
Aiki mai tsauri na tsakiya; Annual leakage of SF6 gas ≤0.5%.
Na son in tabbatar da mafi yawan aiki -yana da kyau a wurare Class IV polluted environments.
Muhimmanci forms-usually porcelain column type and handcart type.
Muhimmanci abubuwan aiki:
Bayanan don bayar :
Model and format of the circuit breaker.
Rated electrical parameters (voltage, current, breaking current, etc).
Working conditions for using (environment temperature, altitude, and environment pollution level).
Rated control circuit electrical parameters (Rated voltage of energy-store motor and Rated voltage of opening, closing coil).
Names and quantities of spare items needed, parts and special equipment and tools (to be otherwise ordered).
The wire connecting direction of the primary upper terminal.
Yadda a zaba irin daidai na circuit breaker?
System Voltage：
System Voltage: Determine the working voltage of the system and select a circuit breaker that can withstand the voltage level. High-voltage and ultra-high-voltage systems typically use SF6 gas or oil-immersed circuit breakers.
System Current：
System Current: Consider the maximum continuous current and short-circuit current of the system, and select a circuit breaker with sufficient rated current and short-circuit capacity.
Application Environment：
Outdoor Environment：
Outdoor Environment: If the circuit breaker will be installed outdoors, consider its performance in resisting pollution, moisture, and windblown sand. Tank-type circuit breakers (such as those using SF6 gas or oil) are generally more suitable for outdoor environments.
Indoor Environment：
Indoor Environment: For indoor installations, circuit breakers that are smaller in size and easier to maintain can be chosen, such as vacuum circuit breakers.
Insulating and Arc-Quenching Medium：
SF6 Gas:
SF6 Gas: Offers excellent insulating and arc-quenching performance, making it suitable for high-voltage and ultra-high-voltage systems. However, environmental concerns and leakage issues need to be addressed.
Insulating Oil:
Insulating Oil: Provides good insulating and heat dissipation properties, but poses fire risks and environmental pollution issues. It is suitable for applications where fire prevention requirements are not stringent.
Vacuum:
Vacuum: Suitable for medium and low-voltage systems, offering long life, high reliability, and ease of maintenance.
An samar da littattafai, abubuwa na LW10B \ lLW36 \ LW58 suna da aiki suka yi amfani da ABB'LTB series kuma suka yi ƙoƙari, tana da yawan kirkiro daga 72.5kV-800kV, tana amfani da Auto Buffer ™ Self powered arc extinguishing technology ko vacuum arc extinguishing technology, tana da integrated spring/motor driven operating mechanism, tana taimakawa masu aiki da rashin inganta, tana da ƙananan girman tsarin juna da kyau da iya gina, tana da kyau don abubuwan da ke buƙata da hanyoyi da za su iya haɗa da ƙananan hanyoyin grid. An yi shi a China, tana da yawan taimaka na duniya da kyau, tana da zarrafa na logisti, tana da dalilin da ya ba da yawan dogara da sadarwa.
Na'urar da karamin kofin karamin kofin ita ce yadda na duniya, wanda ake sani da amfani da karamin kofin zurfi don taimaka wa kayan abubuwa masu muhimmanci kamar ofishin kafar zabi da yanayi. Ofishin kafar zabi ana iya zaune a tsakiyar ko karamin kofin zurfi. Yana da ma'ana a cikin lalacewa da kungiyoyi masu kofin 72.5 kV zuwa 1100 kV. Na'urar da karamin kofin ita suna da muhimmanci a cikin abubuwan da suka yi bayanai da kula da kungiyoyin kofin 110 kV, 220 kV, 550 kV, da 800 kV.
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