YD4-24 high voltage vacuum circuit breakers,load break switches,cable branch boxes with SF6 switchge
FZN25-12 Indoor AC HV vacuum Load break switch and FZRN25-12D Indoor AC HV vacuum load break switch with assembly fuse is the controlling and protecting equipment of three-phase 50Hz, 12kv distribution system, which is widely used in the situations of industrial and mining establishiments and power distribution station of urban buildings. Combined electrical apparatus can protec transformer and other electric equipments. it is used more reliable than circuit breaker. esbecially, it can be perfectly used in terminal substation and box-type substation of urban net and rural net in order to control and protect ring net birabdial electric unit.
a. GB38041.1-90 <<3-63KV AC H.V load switch>>.
b. GB16926-97 <<AC H.V load switch with fuse box>> C. IEC265-1 HV Load Switch No.1 : Rated voltage between 1kv and 52kv high voltage load switch
d. IEC420(1990). <<AC H.V load switch with fuse box>>
less than 200
Rated insulating level
1min power frequency withstand voltage
Lightning impulse resisting voltage
Rated 4S heat - stability current
Rated duration of short circuit
Rated dynamic current
Rated active load breaking current
Rated closed loop breaking current
Rated cable charging current
Breaking no-load transformer capacity Max. breaking current
Rated short circuit breaking current
Rated transfer current
Impactor output energy
Rated short circuit closing current
Earth switch heat-stability current
Earth switch rated duration of short circuit
Auxiliary loop rated pressure
Daya Electrical Group Co., Ltd. (former Zhejiang DAYA electrical equipment factory) was established in 1988. We had technical cooperation with Shanghai Electrical and Scientific Research Institute in 1989. We are nominated as the enterprise which produces complete sets of equipment of low and high voltages by the Machinery Industry Department, Ministry of Power Industry.
We have made investment pool with Yongjia Power Administration, and have business association with Wenzhou City Power Administration. Our group company has passed the ISO9000 international quality system certification, and we are pioneer enterprise of national town with scientific and technological advancement.
Our main products are high and low voltage switchgears under 35KV, 3-35KV box type substations, American type outdoor vacuum circuit breakers, indoor air pressure load switchgears, indoor vacuum circuit breakers, SF6 load switches, high-voltage ring network switchgears and other high-low-voltage electrical appliances, such as wires and cables, instrumentation and explosion-proof electrical products.
Our company has 18 member enterprises, with total assets of 260 million and 1,963 employees, including engineers and technicians accounted for 28%. With a modern machining center, various product lines and implementation of CAD-aided design, scientific quality assurance management system, and MIS computer management system, our group company is always market-oriented with self-development. And we also produce SF6 load switches, high voltage ring network of switchgears, many different kinds of switchgears, high pressure loop counters and 35KV substation boxes.
Our company has formed an effective marketing network around China, and has established a stable and good partnership with many municipality power companies in many provinces. The DAYA brand has gained a high reputation in the Asian market and the quality is also acclaimed by our customers.