CN108832622A - A kind of three power transfer device of industrial light - Google Patents

Abstract

The present invention discloses a kind of three power transfer device of industrial light, it includes the on-off of intermediate relay KA, A.C. contactor 1KM, 2KM, 3KM and D.C. contactor 4KM, 2KM wire loop and spare AC power source by the normally closed point KA2 control of KA；The on-off of 1KM wire loop and common AC power source is controlled by the opened point KA1 of KA；Common AC power source is the power supply of second level lighting loop by the closure of 1KM main contacts；Spare AC power source is the power supply of second level lighting loop by the closure of 2KM main contacts；While second level lighting loop obtains electric, the closure that common or spare AC power source passes through 3KM main contacts is the power supply of level-one lighting loop；The on-off of 4KM wire loop and DC power supply is controlled by the normally closed auxiliary contact in A.C. contactor 1KM, 2KM, 3KM.The present invention realizes three electric power loops of the exchange of 2 tunnels plus 1 road direct current, it is ensured that the reliability of emergency lighting.

Description

A kind of three power transfer device of industrial light

Technical field

The present invention relates to a kind of three power transfer devices of industrial light.

Background technique

Illumination is earliest use field of the mankind to electric energy, and existing lighting system is mostly single supply power supply, and power supply can It is poor by property.Especially 24 hours quantity-produced enterprises suddenly encounter illumination and interrupt, it is difficult to ensure scene illumination, can generate very Big security risk.

Summary of the invention

In order to solve the above technical problems, the present invention provides a kind of three power transfer device of industrial light.

To achieve the above object, the present invention adopts the following technical solutions：

A kind of three power transfer device of industrial light, it includes intermediate relay KA, A.C. contactor 1KM, ac contactor Device 2KM, A.C. contactor 3KM and D.C. contactor 4KM, the on-off of A.C. contactor 2KM wire loop and spare AC power source It is controlled by the normally closed point KA2 of intermediate relay KA；The on-off of A.C. contactor 1KM wire loop and common AC power source is by centre The opened point KA1 of relay KA is controlled；The closure that common AC power source passes through A.C. contactor 1KM main contacts is that second level illuminates back Road power supply；Spare AC power source is the power supply of second level lighting loop by the closure of A.C. contactor 2KM main contacts；Second level illuminates back While rood electricity, commonly using AC power source or spare AC power source by the closure of A.C. contactor 3KM main contacts is level-one photograph Bright loop power supply；The on-off of D.C. contactor 4KM wire loop and DC power supply is by normally closed auxiliary in contactor 1KM, 2KM, 3KM Help contact control.

Further, when common AC power source or spare AC power source are powered, pass through D.C. contactor 4KM wire loop The opening of middle contactor 1KM or 2KM normally closed auxiliary contact disconnect to control D.C. contactor 4KM main contacts.

Further, DC power supply is the power supply of level-one lighting loop by the closure of D.C. contactor 4KM main contacts；Pass through The connection of contactor 1KM, 2KM, 3KM normally closed auxiliary contact in D.C. contactor 4KM wire loop, to control D.C. contactor 4KM main contacts closure.

Beneficial effect：

The device of the invention power supply is the exchange of 2 tunnels and 1 road direct current, it is contemplated that the DC power supply of enterprise's regular distribution room configuration Capacity, only illumination (master control room, switchgear house and key post etc.) important to enterprise's level-one realizes the three of the exchange of 2 tunnels plus 1 road direct current Electric power loop, it is ensured that the reliability of emergency lighting.

Detailed description of the invention

Fig. 1 is the electrical schematic diagram of one embodiment of the invention.

Specific embodiment

Present invention will be further explained below with reference to the attached drawings and examples.

Three power transfer device of a kind of industrial light of the present embodiment, as shown in Figure 1, it includes intermediate relay KA, hands over Flow coil one end of contactor 1KM, A.C. contactor 2KM, A.C. contactor 3KM and D.C. contactor 4KM, intermediate relay KA The B1 phase of AC power source is commonly used by fuse 2FU connection.The coil other end of intermediate relay KA passes through exchange switching push button 1SA connects the C1 phase of common AC power source with fuse 3FU, and the A1 phase of common AC power source passes through fuse 1FU and cuts with exchanging The normally-closed contact of button 1SA connection A.C. contactor 2KM is changed, the other end of the normally-closed contact of A.C. contactor 2KM connects intermediate The normally opened contact KA1 of the normally opened contact KA1 of relay KA, intermediate relay KA the other end connection A.C. contactor 1KM and often With power supply indicator 1HD；The A2 phase of spare AC power source passes through the normally-closed contact KA2 of fuse 4FU connection intermediate relay KA, The normally-closed contact of the other end connection A.C. contactor 1KM of the normally-closed contact KA2 of relay KA, A.C. contactor 1KM's is normally closed The other end of contact connects A.C. contactor 2KM and backup power source indicator light 2HD, and the C2 phase of spare AC power source passes through fuse The other end of 5FU connection backup power source indicator light 2HD and the other end of A.C. contactor 2KM；The A2 phase of spare AC power source is also Alternating current-direct current switching tests button 2SA is connected by the main contacts of A.C. contactor 2KM, alternating current-direct current switching tests button 2SA's is another One end connects the normally-closed contact of A.C. contactor 4KM, and the other end of the normally-closed contact of A.C. contactor 4KM connects A.C. contactor 3KM and Alternating Current Power Supply indicator light 3HD；The anode of DC power supply by fuse 8FU connection alternating current-direct current switching tests button 2SA with The normally-closed contact of A.C. contactor 1KM, the normally-closed contact of A.C. contactor 1KM, A.C. contactor 2KM normally-closed contact with exchange The normally-closed contact of contactor 3KM is connected, the coil of the other end connection A.C. contactor 4KM of alternating current-direct current switching tests button 2SA With direct current supply indicator light 4HD.

The working principle of the invention is：When 3 road power supplys are all normal, intermediate relay KA obtains electric, and the normally closed point KA2 of KA can break A.C. contactor 2KM wire loop is opened, prevents contactor 2KM main contacts from being attracted, it is ensured that the disconnection with spare AC power source.Together When KA opened point KA1 be closed, connect A.C. contactor 1KM wire loop, obtain second level lighting loop by A.C. contactor 1KM Electricity, while the 1KM normally closed auxiliary contact in D.C. contactor 4KM wire loop is opened, and 4KM main contacts is made to remain open shape State, it is ensured that AC and DC power supply will not be accessed in lighting loop simultaneously.While second level lighting loop obtains electric, A.C. contactor 3KM Coil obtain it is electric, pass through A.C. contactor 3KM main contacts connect level-one lighting loop.All illuminations are preferentially supplied by common alternating current Electricity.

When commonly using power cut-off in 3 road power supplys, intermediate relay KA power loss, KA opened point KA1 will disconnect 1KM contactor Wire loop disconnects 1KM contactor main contacts, it is ensured that the disconnection with spare AC power source.The normally closed point KA2 closure of KA simultaneously, A.C. contactor 2KM wire loop is connected, obtains second level lighting loop by A.C. contactor 2KM electric, while being contacted in direct current 2KM normally-closed contact in device 4KM wire loop is opened, and remains off 4KM main contacts, it is ensured that will not be same in lighting loop When access AC and DC power supply.While second level lighting loop obtains electric, A.C. contactor 3KM coil obtains electric, passes through A.C. contactor 3KM connects level-one lighting loop.All illuminations are by spare AC power supply.

Normal, spare AC power source powers off simultaneously in 3 road power supplys, and power loss, main contacts are disconnected simultaneously for 1KM, 2KM, 3KM contactor It opens, disconnects second level illumination with 3 road electric power loops completely, the zero-emission of level-one lighting loop and second level illumination zero-emission disconnect.Exist simultaneously 1KM, 2KM, 3KM contactor normally closed auxiliary contact in D.C. contactor 4KM wire loop is connected, D.C. contactor 4KM coil Must be electric, it is closed 4KM main contacts, directly connection level-one lighting loop, level-one lighting loop are powered by DC power supply.

Limiting the scope of the invention, those skilled in the art should understand that, in technical solution of the present invention On the basis of, the various modifications or variations that can be made by those skilled in the art with little creative work still of the invention Within protection scope.

Claims (3)

1. a kind of three power transfer device of industrial light, it includes intermediate relay KA, A.C. contactor 1KM, A.C. contactor 2KM, A.C. contactor 3KM and D.C. contactor 4KM, it is characterised in that：The A.C. contactor 2KM wire loop and spare friendship The on-off in galvanic electricity source is controlled by the normally closed point KA2 of intermediate relay KA；The A.C. contactor 1KM wire loop is exchanged with common The on-off of power supply is controlled by the opened point KA1 of intermediate relay KA；The common AC power source passes through the A.C. contactor 1KM The closure of main contacts is the power supply of second level lighting loop；The spare AC power source passes through the closure of A.C. contactor 2KM main contacts For the power supply of second level lighting loop；While the second level lighting loop obtains electric, the common AC power source or the spare exchange Power supply is the power supply of level-one lighting loop by the closure of the A.C. contactor 3KM main contacts；The D.C. contactor 4KM coil The on-off of circuit and DC power supply is controlled by the normally closed auxiliary contact in contactor 1KM, 2KM, 3KM.

2. three power transfer device of industrial light according to claim 1, it is characterised in that：In the common AC power source Or when the power supply of spare AC power source, pass through the normally closed auxiliary touching of contactor 1KM or 2KM in the D.C. contactor 4KM wire loop The opening of point disconnects to control D.C. contactor 4KM main contacts.

3. three power transfer device of industrial light according to claim 1 or 2, it is characterised in that：The DC power supply is logical The closure of the D.C. contactor 4KM main contacts is crossed as the power supply of level-one lighting loop；It is returned by the D.C. contactor 4KM coil The connection of contactor 1KM, 2KM, 3KM normally closed auxiliary contact in road, to control D.C. contactor 4KM main contacts closure.