3000 Amps, Hyundai, HDTB 145 40 HDTB 145-40, 145 KV, 40 KAIC, SF6 Dead Tank Breaker ANSI/IEEE (new)

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NEW unit that meets ANSI/IEEE standards. Standard lead time is 14 months DDP jobsite. 5 year warranty!!!
We are the authorized rep for Hyundai dead tank breakers.

Gas Circuit Breaker (DTB)
(1) Type : HDTB 145-40
(2) Rated voltage : 145 kV rms
(3) Rated current : 3000 A rms
(4) Rated frequency : 60 Hz
(5) Rated breaking current : 40 kA rms, 3 s
(6) First pole to clear factor : 1.5
(7) Rated break time : 3 cycles
(8) Rated short circuit making current : 108 kA peak
(9) Rated no load closing time : ≤ 100ms
(10) Rated no load opening time : ≤ 30ms
(11) Rated operating sequence : O-0.3s-CO-15s-CO
(12) Operating mechanism
1) Type of operating mechanism : Motor spring
2) Motor for spring charging
a. Type : DC/AC motor
b. Rated voltage : 125 Vdc
3) Trip coils and closing coil
a. Rated voltage : 125 Vdc
(13) Rated SF6 gas pressure at 68°F : 87 psi
(14) Full wave lightning impulse withstand voltage : 650 kV
(15) Chopped wave impulse withstand voltage : 838 kV
(16) Power frequency withstand voltage (1min) : 310 kV rms

Current Transformer (CT)
(1) Type : Ring core bushing CT
(2) Ratio : According to requirement
(3) Continuous thermal rating factor : 2

Local Control Cubicle (LCC)
(1) LCC comprises the necessary control switches, gas alarm, indication for operating
circuit breaker switches and the terminal strips for connection of the remote.
(2) Rated control voltage : 125 Vdc
(3) Rated voltage for heating & lighting : 120/240 Vac (1Ø)

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