AB-3S-12 outdoor high voltage vacuum circuit breaker

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AB-3S-12 outdoor high voltage vacuum circuit breaker

◆ Overview
AB-3S-12 series of circuit breakers is the company's comprehensive domestic and foreign advanced technology, Bocaizhongzhijia long, using a new design concept, far from high-tech means, the latest development of a new generation of intelligent vacuum circuit breaker. The product can be used as 35kv substation main transformer 10kv side and 10kv outlet switch, can also be used as a distribution network on the column switch, and the company's production is a combination of various control units can be easily achieved control, protection, Measurement, communication, is to achieve the automation and miniaturization of the preferred equipment.

◆ Model meaning

◆ conditions of use
1. Working environment temperature: not more than 40 ℃; daily average temperature of not more than 35; minimum ambient air temperature of -25 ;.
2. Air relative humidity: daily average of not more than 95%, the monthly average of not more than 90; water vapor pressure daily average of not more than 2.2kPa;
3. Monthly average is not more than 1.8 kPa;
4. Altitude: no more than 2000m;
5. The surroundings are not significantly contaminated by dust, smoke, corrosive and / or flammable gases, steam or salt fog;
6. The vibration or ground from outside the switchgear and control equipment is negligible;
7. In the secondary system, the amplitude of the induced electromagnetic interference does not exceed 1.6kv.

◆ Main technical parameters

Serial number	name		unit	data
1	Rated voltage		KV	12
2	Rated insulation level	1min power frequency withstand voltage (RMS)	KV	42
2	Rated insulation level	Lightning impulse withstand voltage (peak)	KV	75
3	Rated frequency		KV	50
4	Rated current		A	630 1250
5	Rated short circuit breaking current		KA	20
6	Rated short-circuit closing current (peak)		KA	50
7	Rated operating sequence		Points t1 (0.3s) - points t2 (3s) - points t2 (3s) - joint points - lock
8	Thermal stability current (4S)		KA	20
9	Dynamic current (peak)		KA	50
10	Rated short circuit current breaking times		Times	30
11	CT ratio			30-1250/1（5）
12	Working power supply voltage		V	-220(-110)
13	Creepage distance			≥ 31
14	Number of machines		Times	10000
15	weight		kg	90+40

◆ main function
Protection: with or without time current quick current, timing overcurrent, reverse time overcurrent, directional overcurrent, over voltage, under voltage protection;
Control: can be in situ operation and remote control, can also be in accordance with the pre-set program action;
Automation: can automatically achieve the fault location of the line, fault isolation, restore power supply, parameter analysis;
Can be automatically required to achieve low-frequency load shedding, automatic switching capacitor, etc., and through GPRS or dedicated communication network to report fault information;
Communication: support TCP / IP protocol, support GPRS, provide CAN, RS232 / 485 communication port, support a variety of communication protocols (DNP3.0, IEC101, etc.)
Can record, store operation, operation and fault parameters, protection settings can be set on-site and remote programming;
Can monitor the mechanical parameters of the device, the arc chamber operation conditions;
Can be synchronized on the circuit breaker to effectively suppress the operation of over-voltage and inrush current, especially for the operation of the capacitor.