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Indoor AC High-Voltage Isolation-Grounding Integrated Vacuum Circuit Breaker

Name: Indoor AC High-Voltage Isolation-Grounding Integrated Vacuum Circuit Breaker
Brand: Zhejiang Tenrony Electricity Co., Ltd.
Availability: InStock

The indoor AC high-voltage isolation-grounding integrated vacuum circuit breaker, referred to as the circuit breaker, is a new type of switch that combines the functions of an isolating switch, vacuum circuit breaker, grounding switch, and operating mechanism. Indoor circuit breaker is a new product independently developed by the circuit breaker company with independent intellectual property rights and patents, in response to the shortcomings of the existing large number of switch cabinets on the market, such as large volume, complex interlocking, excessive copper busbar usage, and a large amount of later construction work. An indoor circuit breaker features a distinct isolation gap, a grounding switch with a closing function, capable of breaking short-circuit currents, and can be operated frequently.A high voltage circuit breaker has the advantages of small size, reliability, and simple "five-prevention" interlocking when installed in cabinets, complete functions, and long service life.

Products

Features of Indoor AC High-Voltage Isolation-Grounding Integrated Vacuum Circuit Breaker

The main indoor circuit breaker circuit is arranged in a three-phase longitudinal layout, with a compact and elegant appearance. The switchgear can be reduced to 500mm in width, saving floor space.

The main circuit reduces contact points, shortens the conductive path, and reduces the copper busbars inside the cabinet, conserving resources.

The pole column is designed with APG technology, preventing the influence of contaminated environments on vacuum arc extinguishing, enhancing external insulation, improving the insulation level of the arc extinguishing chamber, and reducing the size of the switch.

The grounding knife switch can close short-circuit currents.

The isolation knife switch has a clear disconnection point, ensuring safety and facilitating maintenance.

The opening and closing operations have both manual and electric functions, and the operating power supply can be AC or DC.

The vacuum circuit breaker, isolation switch, and grounding switch are interlocked according to the five-prevention operation sequence, providing reliable and convenient five-prevention interlocking.

High voltage circuit breaker offers upper isolation, lower isolation, and both upper and lower isolation schemes, meeting the needs of different power usage scenarios.

The operating mechanism is modular and integrated. All connections are completed at the factory, eliminating the need for secondary assembly, facilitating installation, maintenance, and replacement.

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High voltage circuit breaker is oil-free, non-toxic, and free of SF6 gas, making it environmentally friendly and energy-efficient.

Parameters

Main technical parameter
No.	Items	Unit	Numerical
1	Rated voltage	KV	12
2	Rated short-duration Power frequency withstand voltage(1min)	KV	42
3	Rated lightning impulse withstand voltage	KV	75
4	Rated frequency	Hz	50
5	Rated current	A	630		1250
6	Rated short-circuit breaking current	KA	20	25	20	25	31.5
7	Rated short-circuit closing current(peak)		50	63	50	63	80
8	Rated peak withstand current		50	63	50	63	80
9	Rated short-circuit withstand current		20	25	20	25	31.5
10	Rated short-circuit breaking times	times	30
11	Rated duration of short-circuit	S	4
12	Rated operation sequence	A	divide-0.3S-close divide-180S-close divide
13	Rated single capacitor bank breaking current		400 400
14	Rated back-to-back capacitor bank breaking current		400 400
15	Main circuit resistance	μΩ	≤90(630)≤60(1250)
16	Grounding short circuit withstand current	KA	31.5
17	Grounding short circuit peak withstand current	KA	80
18	Grounding short circuit duration	S	4
19	disconnecting the contact structure	mm	>125

Benefits

Operating environmental conditions

Ambient air temperature: Maximum +40℃, minimum -15℃ (microcomputer protection is -10℃);
Environmental humidity: Daily average relative humidity: ≤95%, monthly average relative humidity: ≤90%;
Altitude: Not exceeding 1000m;
Earthquake magnitude: Not exceeding 8 degrees.
Surrounding environment: No fire, no dripping water, no flammable materials, no explosive substances, no corrosive or severely vibrating places.

Use

The TV1 circuit breaker is suitable for indoor switchgear in three-phase AC 50Hz power systems with a rated voltage of 12KV. indoor circuit breaker can be used in substations and industrial and mining enterprises for the control and protection of power equipment, and is also suitable for places with frequent operations at rated current or multiple short-circuit current interruptions.

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Tel:

+8617357837309
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E-mail:

li@tenrony.com
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Address:

No.788 Wenyi Road, Bihu Town, Lishui City, Zhejiang Province, China

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