KYN28-12, with a rated voltage of 12kV and rated frequency of 50Hz or 60Hz, is a type of Air Insulated Vacuum Circuit Breaker Switchgear. KYN28 can be installed with VSI or VD4 vacuum circuit breaker.
Product Details
Product description
KYN28-12 is suitable for 3.6 ~ 12KV three-phase AC 50Hz power grid, for accepting and distribution of electrical energy, and for purposes of the circuit controlling, monitoring and protection. It can be used for single busbar, single busbar section system or double busbar system, and handcart type of the circuit breaker is easy to maintain. Mainly used in power substations, industrial and mining enterprises, hotels, communities, municipal construction, and petrochemical sector as controlling protection and power distribution monitoring.
WORKING CONDITIONS • Ambient temperature: -25ºC~+40ºC • Altitude: ≤2000m (If it is more than 2000m, please specify when ordering) • Relative humidity: ≤95%(+25ºC) • Earthquake intensity: ≤8 degrees Installation Environment: In the place where there is no fire, no explosion hazards, no serious pollution, no chemical corrosion and violent vibration
TECHNICAL PARAMETERS
Item
UnitParameters
Rated voltage
KV
3.6, 7.2, 12
Rated frequency
Hz
50
CB Ratedcurrent
A
630, 1250, 1600, 2000, 2500, 3150
Cabinet Rated current
A
630, 1250, 1600, 2000, 2500, 3150
(4s) Ratedflexibleandstablecurrent(4s)
KA
16, 20, 25, 31.5, 40, 50
Ratedflexibleandstablecurrent(peak)
KA
40, 50, 63, 80, 100, 125
Rated short and open circuit current
KA
16, 20, 25, 31.5, 40, 50
Rated short circuitopenandclosecurrent(peak)
KA
40, 50, 63, 80, 100, 125
Rated insulation level
1min1min power frequency withstandvoltage
KV
24, 32, 42
Lightning impulse withstand voltage
KV
40, 60, 75
Protection level
/
IP4X /Shell
/
IP2X , when the compartment door and the breaker door are opened)
Features:
The product appearance is novel, concise and coordinate.
Frame structure, high strength, high precision.
Simple and reliable interlocking function to prevent misoperation.
Protected by all metal, makes the operation safer and more reliable.
More humanized man-machine interface is easy to operate.
Company introduction
Zhejiang Volcano Electrical Tehcnology Co., Ltd , as a technical-guided power transmission and distribution equipment factory, since its establishment, it has made constant efforts to make product quality reliable and technology innovative.
The factory has occupied square over 10000㎡, and brought in several international advanced production line. To offer the best quality with our best service to get a win-win solution is our main principal.