China Wholesale Medium Voltage Sf6 Circuit Breaker Manufacturer – 40.5kV SF6 Circuit Breaker GPFN Series – Greenpower

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The key to our success is "Good Product Quality, Reasonable Value and Efficient Service" for High Voltage Dc Disconnect Switch, 12kv Motorized Trolley, 4000 Amp Air Circuit Breaker, Together with the everlasting target of "continuous top quality improvement, customer satisfaction", we have been sure that our products high quality is stable and trustworthy and our solutions are best-selling at your home and overseas.

China Wholesale Medium Voltage Sf6 Circuit Breaker Manufacturer – 40.5kV SF6 Circuit Breaker GPFN Series – Greenpower Detail:

Model and Meaning

Use Environmental Conditions

a. Altitude: no more than 1000m
b. Ambient temperature: -15℃～+40℃, the daily average temperature does not exceed +35℃
c. Environmental humidity: daily average relative humidity: ≤95% monthly average relative humidity: ≤90%
Daily average vapor pressure: ≤2.2×10-3 MPa Monthly average vapor pressure: ≤1.8×10-3MPa
d. Earthquake intensity: no more than 8 degrees
e. Location of use: Ambient air is not appreciably polluted by dust, smoke, corrosive and/or flammable gases, vapors or salt mist.
Note: When the actual use environment does not meet the above conditions, please consult with our company.

Technical Parameter

No.	Items			Unit	Data
1	Rated voltage			kV	40.5
2	Rated frequency			Hz	50
3	1min power frequency withstand voltage	Between poles, To earth		kV	95
		Fractures			118
	Lightning impulse withstand voltage (peak)	Between poles, To earth			185
		Fractures			215
4	Rated current			A	1250 1600 2000 2500
5	Rated short-time withstand current (RMS)			kA	25	31.5
6	Rated peak withstand current				63	80
7	Rated short-circuit breaking current (RMS)				25	31.5
8	Rated short-circuit making current (peak value)				63	80
9	Rated short circuit duration			s	4
10	Rated sequence of operations				O-0.3s-CO-180s-CO
11	Rated out-of-phase earth fault breaking current			kA	21.7	27.4
12	Rated cable charging current switching test			A	50
13	Rated single/back-to-back capacitor bank breaking current				800/800
14	Mechanical life			times	10000
15	Short circuit current breaking times			times	30
16	Secondary circuit 1 min power frequency withstand voltage				2000
17	Rated operating voltage		Closing coil	V	DC110/220, AC220
			Opening coil	V	DC110/220, AC220
18	Rated voltage of energy storage motor			W	DC110/220, AC220
19	Rated power of energy storage motor			s	250
20	Energy storage time (rated voltage)			s	≤10
21	Rated pressure of SF6 gas (gauge pressure at 20°C)			Mpa	0.35₀^+0.02
22	Alarm pressure			Mpa	0.29±0.01
23	Minimum functional pressure (blocking pressure)			Mpa	0.28±0.01
24	Annual leak rate			%	≤0.5
25	Gas moisture content			μL/L	≤150
26	Moving contact stroke			mm	≥78
27	Contact Spacing			mm	50±1.5
28	Opening time			ms	60~78
29	Closing time			ms	65~95
30	Three-phase closing and opening are not periodic				≤5
31	Average opening speed (within 10ms after halfway)			ms	2.2~2.8
32	Average closing speed (within 10ms after half-way)			ms	≥1.5
33	Main conductive loop resistance			μΩ	≤32(Handcart)	≤20(Fixed type）

Main Structure

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We thinks what customers think, the urgency of urgency to act during the interests of a purchaser position of theory, allowing for much better good quality, lower processing costs, prices are extra reasonable, won the new and old buyers the support and affirmation for China Wholesale Medium Voltage Sf6 Circuit Breaker Manufacturer – 40.5kV SF6 Circuit Breaker GPFN Series – Greenpower, The product will supply to all over the world, such as: Sierra Leone, azerbaijan, Niger, We warmly welcome domestic and overseas customers to visit our company and have business talk. Our company always insists on the principle of "good quality, reasonable price, the first-class service". We are willing to build long-term, friendly and mutually beneficial cooperation with you.

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