Wireless remote soft start electrical cabinet
A wireless remote control and soft start technology, which is applied in the direction of electrical components, motor generators/starters, motors/generators/inverter limiters, etc., can solve the problem that the soft start electrical box cannot be operated remotely The probability of misoperation, the effect of saving equipment cost and labor cost
Inactive Publication Date: 2012-07-18
SHANGHAI TUNNEL ENG CO LTD
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Problems solved by technology
[0008] The purpose of the present invention is to provide a wireless remote control soft-start electric box to solve the problem that the existing soft-start electric box cannot be operated remotely
Method used
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Embodiment Construction
[0023] The main idea of the present invention is to combine the wireless remote control switch with the traditional switch to transform the soft start electric box, so as to realize the remote control of the soft start electric box.
[0024] The present invention will be described in detail below in conjunction with the accompanying drawings. See figure 1 , which is a schematic circuit diagram of an embodiment of the wireless remote control soft-start electrical box of the present invention. The wireless remote control soft start electrical box 10 includes a soft starter 11 , a bypass contactor 12 , a switch control unit 13 , a decoding unit 14 and a receiving unit 15 . The three-phase AC input terminals U, V, and W are the incoming terminals of the soft starter 11, the output terminals U', V', and W' of the soft starter 11 are connected to the motor M, and the soft starter 11 is connected in series to the three-phase AC Between the input terminal and the motor M, it is us...
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The invention discloses a wireless remote soft start electrical cabinet, comprising a soft starter and a switch control unit, wherein the soft starter is arranged between a power input end and a motor; the switch control unit is connected with the soft starter for controlling the startup and halt of the soft starter; the switch control unit further comprises a normally open starting switch, a normally closed halt switch, a wireless remote normally open contact and a wireless remote normally closed contact; the normally open start switch connected with the soft starter is used for triggering the soft starter to be connected with tri-phase alternating current; the normally closed halt switch connected with the soft starter is used for triggering the soft starter to be disconnected with the tri-phase alternating current; the wireless remote normally open contact connected with the normally open start switch in parallel is used for controlling the motor to start by a wireless remote mode;and the wireless remote normally closed contact connected with the normally closed halt switch in series is used for controlling the motor to halt by a wireless remote mode. The invention has the advantages of convenient operation and low cost.
Description
technical field [0001] The invention relates to the field of high-power electric control, in particular to a wireless remote control soft-start electric box. Background technique [0002] With the rapid development of the national economy, modern large-scale and super-large enterprises have continuously enhanced their production capacity. The capacity of motors used in large-scale equipment is also increasing, and motors with thousands of KW and tens of thousands of KW have been used in many enterprises. However, the problem of safe start-up of large-scale electric motors followed, and at the same time, whether its operation is good or bad is also a reality faced by enterprises. [0003] For electric motors of household appliances, direct start is the simplest, most convenient and feasible way. However, as the capacity of the motor increases, the direct start can no longer meet the needs of the development of productivity, and its disadvantages seriously restrict the appli...
Claims
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IPC IPC(8): H02P1/28H02P3/18
Inventor 戴兵王峰祝强
Owner SHANGHAI TUNNEL ENG CO LTD