Dual power automatic switching switch refers to a type of installation controlled by a microprocessor, used for starting and switching between grid power and grid power or grid power and generator power in the power grid system, which can enable continuous power supply from the power source. The series dual power supply automatically switches to the backup power supply through the dual power switch in case of sudden malfunction or power outage of the commonly used power supply (the backup power supply can also be powered by the generator under small loads), ensuring that the equipment can still operate normally. The most common ones are elevators, firefighting, monitoring, lighting, etc. Simply connect the two sets of power supplies to the incoming side of the two air switches, and connect the load to the outgoing end of the AC contactor.

在裝置接線前，應(yīng)先對(duì)配電箱停止外觀檢查，核對(duì)接線正確性，檢查各部件絕緣、導(dǎo)通接地等狀況；檢查終了，用一個(gè)三相5安培開關(guān)作實(shí)驗(yàn)電源開關(guān)，并對(duì)配電箱施行帶電模仿實(shí)驗(yàn)，確保裝置后能根本到達(dá)請(qǐng)求。在銜接兩組電源時(shí)，應(yīng)肯定哪一個(gè)電源優(yōu)先，把優(yōu)先的電源接在沒有時(shí)間延時(shí)的一側(cè)，把備用電源接在延時(shí)后動(dòng)作的一側(cè)；當(dāng)交流接觸器下端沒有連線時(shí)，應(yīng)把兩組電源的同一相相連，確保任何一組電源送電時(shí)都能保證正常供電。

Before wiring the device, the appearance inspection of the distribution box should be carried out to verify the correctness of the wiring, and the insulation, grounding, and other conditions of each component should be checked; After the inspection is completed, use a three-phase 5-ampere switch as the experimental power switch and conduct live simulation experiments on the distribution box to ensure that the device can fundamentally meet the requirements. When connecting two sets of power sources, it is important to determine which power source has priority. Connect the priority power source to the side without time delay, and connect the backup power source to the side that operates after the delay; When there is no connection at the lower end of the AC contactor, the same phase of the two sets of power supplies should be connected to ensure normal power supply when either set of power supplies is powered on.

銜接終了，應(yīng)對(duì)電源切換狀況停止實(shí)驗(yàn)：分別對(duì)其中一組電源停止送電，同時(shí)轉(zhuǎn)動(dòng)開關(guān)到主電源、后備電源、自動(dòng)等位置，檢查兩個(gè)接觸器的切換狀況，以及各相同步合閘狀況、觸點(diǎn)銜接狀況等。若要檢查負(fù)荷狀況，還必需送上額定負(fù)荷停止檢查。對(duì)帶電設(shè)備的檢查，必需準(zhǔn)守平安操作規(guī)程，確保施行過程平安。

After the connection is completed, the experiment should be stopped in response to the power switching situation: one group of power supplies should be stopped from power supply, and the switch should be turned to the main power supply, backup power supply, automatic and other positions to check the switching status of the two contactors, as well as the synchronous closing status of each phase, contact connection status, etc. To check the load condition, it is also necessary to send the rated load to stop the inspection. For the inspection of live equipment, it is necessary to strictly follow safe operating procedures to ensure the safety of the implementation process.

需求兩套東西，一個(gè)是發(fā)電機(jī)的自啟動(dòng)控制器，其次是雙電源切換柜，首先從你的市電柜引一根220V的信號(hào)線到發(fā)電機(jī)的自啟動(dòng)控制柜內(nèi)，一旦這跟信號(hào)線斷電，發(fā)電機(jī)本人啟動(dòng)，20秒內(nèi)能夠把點(diǎn)保送到雙電源切換柜，這跟時(shí)分雙電源切換柜換自動(dòng)切換到發(fā)電機(jī)這一側(cè)，發(fā)電機(jī)自動(dòng)發(fā)電完成，打市電來了之后，首先有動(dòng)作的是雙電源切換柜，它會(huì)疾速切換到市電這一側(cè)，由于雙電源開關(guān)有市電優(yōu)先準(zhǔn)繩，發(fā)電機(jī)此時(shí)與負(fù)載斷開，而發(fā)電機(jī)也會(huì)承受信號(hào)線的信號(hào)，通知發(fā)電機(jī)電來了，普通發(fā)電時(shí)機(jī)設(shè)置成在承受來電信號(hào)后40秒左右自動(dòng)停機(jī)，這是為了避免假來電現(xiàn)象，防止發(fā)電機(jī)反復(fù)啟動(dòng)。

Two sets of equipment are required, one is the self starting controller of the generator, and the other is the dual power switch cabinet. Firstly, introduce a 220V signal line from your mains cabinet to the self starting control cabinet of the generator. Once this signal line is cut off, the generator will start itself and be able to deliver the point to the dual power switch cabinet within 20 seconds. This will automatically switch to the generator side when the dual power switch cabinet is switched, and the generator will automatically generate electricity, After the mains power comes, the first action is the dual power switch cabinet, which quickly switches to the side of the mains power. Due to the dual power switch having the mains power priority criterion, the generator is disconnected from the load at this time, and the generator also receives the signal from the signal line to notify the generator that it is coming. The normal power generation timing is set to automatically stop around 40 seconds after receiving the incoming signal, in order to avoid false power calls and prevent the generator from repeatedly starting.