Single-phase multifunctional protector with low power consumption
A protection device and multi-function technology, applied in the field of low-power single-phase multi-function protection devices, can solve the problems of uneconomical, high failure rate, complicated circuits, etc., and achieve a simple structure, low failure rate, and easy marketization. Effect
Inactive Publication Date: 2016-02-03
钟兴明
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Problems solved by technology
There is an automatic reset device for overvoltage protection on the market. After the overvoltage disappears, the product will automatically turn on when it returns to normal voltage. Although it can play the role of overvoltage protection, this product has a built-in complicated circuit and requires A group of power supply, the failure rate is high, the power consumption is relatively large, generally about 10W, the annual waiting power consumption is 86000 watts per hour = 86 kWh, and the electricity price is 1 yuan / kWh, the annual payment At 86 yuan, it is not a cost-effective device
In addition, when this kind of device encounters grid voltage overvoltage fluctuations, this kind of intermittent connection is also harmful to electrical appliances. In addition, this kind of device has never left the overvoltage. Infringement of the device itself is also possible
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[0036] Please refer to figure 1 As shown, it shows the specific structure of the preferred embodiment of the present invention. It is a low-power single-phase multi-function protection device that integrates overcurrent, leakage, overvoltage, and control protection. Its structure includes relays (1 ), overvoltage leads to connect the circuit (2), leakage test button (3), leakage induction coil (4), overcurrent tripping coil (5), amplifier (6), leakage tripping coil (7), trip Switch (8), control signal input voltage (9), load circuit (electrical appliance) (10).
[0037] The two ends of the input of the relay (1) are connected to the input voltage (9), and the two ends of the output of the relay are connected to the two ends of the overvoltage lead-in circuit (2) circuit; the over-voltage lead-in circuit (2) circuit The two ends are connected in parallel to the two ends of the leakage test button (3); one end of the leakage button (3) is connected to the output terminal of the...
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The invention discloses a single-phase multifunctional protector with low power consumption. A overvoltage protection unit, a control input protection unit, an electric leakage testing unit, an over-current protection unit, and an electric leakage protection unit are integrated into the single-phase multifunctional protector so that the single-phase over-current, electric leakage, overvoltage and control protector is formed. The single-phase multifunctional protector may better protect circuit electric appliances, enables a switch to trip out, and is easy to marketize. In addition, the single-phase multifunctional protector is simple in structure, low in failure rate, high in power efficiency, and satisfies an energy-saving environment-friendly purpose without standby power consumption.
Description
technical field [0001] The invention relates to the technology in the field of electrical protection, in particular to a low-power single-phase multifunctional protection device integrating overcurrent, leakage, overvoltage and control protection. Background technique [0002] At present, the civil voltage of our country is 220V ± 20%, which is normal. If it exceeds the value of 220V + 20% = 264V, it is called overvoltage in this paper. Due to the increasing variety of electrical appliances, people's electricity consumption rate has also increased, and the load on the transmission network line has continued to increase. In order to adapt to the new power consumption situation, the power sector has also continuously updated lines to meet people's new demand for electricity consumption, but power failures are inevitable. It also often happens, sometimes higher than 220V+20% voltage transmission; there are also private connections on the construction site, and many 380V voltage...
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IPC IPC(8): H02H3/32H02H7/26
Inventor 钟兴明胡海洋钟金丞
Owner 钟兴明