CN206323208U - A kind of redundant AC power automatic switching loop - Google Patents
A kind of redundant AC power automatic switching loop Download PDFInfo
- Publication number
- CN206323208U CN206323208U CN201621368366.5U CN201621368366U CN206323208U CN 206323208 U CN206323208 U CN 206323208U CN 201621368366 U CN201621368366 U CN 201621368366U CN 206323208 U CN206323208 U CN 206323208U
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- contactor
- normally opened
- breaker
- opened contact
- power source
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Abstract
The utility model is related to a kind of redundant AC power automatic switching loop, including the first main power source and the second main power source, the first breaker and the second breaker, first contactor, second contactor, the 3rd contactor, the 4th contactor；First main power source and the second main power source are connected through the first breaker and the second breaker with voltage device respectively, and first contactor is in parallel with the 3rd contactor, second contactor is in parallel with the 4th contactor；The primary side coil of two normally opened contacts and voltage device of two normally opened contacts of first contactor and the 3rd contact is connected and first contactor is connected with second contactor by mechanical interlock.The design of the utility model control loop, it is simple in construction, it is easy to connect, using electric interlock by the way of mechanical interlocked be combined, substantially increase the reliability that power supply switches moment.
Description
Technical field
The utility model belongs to technical field of electric control, and in particular to a kind of redundant AC power automatic switching loop.
Background technology
In the nucleus equipment of the operating modes such as ship, offshore platform, power plant, redundant AC power supplier of electricity is often used
Formula, during for preventing that wherein dead electricity occurs for power supply all the way, nucleus equipment, which is stopped, causes the system paralysis of whole ship or factory
Paralysis.But in practical situations both, some redundant AC powers do not account for abundant or do not pass through reliability test, cause
When dead electricity occurs for main power source, stand-by power supply is without switching in time so as to cause systemic breakdown or serious industrial accident.
Utility model content
The purpose of this utility model is to solve above-mentioned technical problem and provide a kind of redundant AC power and automatically switch
Loop.
To achieve the above object, the utility model is adopted the following technical scheme that：
A kind of redundant AC power automatic switching loop, including the first main power source 100 and the second main power source 101, first breaks
The breaker 103 of road device 102 and second, voltage device 117, first contactor 109, second contactor 114, the 3rd contactor 110,
Four contactors 115；
Wherein, the first main power source 100 is connected with the power input of the first breaker 102, the power supply of the first breaker 102
Output end passes through the first normally opened contact 104 of first contactor 109 and the second normally opened contact 105 of first contactor 109 and electricity
The primary side coil of depressor 117 is connected；
Second main power source 101 is connected with the power input of the second breaker 103, and the power supply of the second breaker 103 is defeated
Go out end with the first normally opened contact 106 of second contactor 114 and the second normally opened contact 107 of second contactor 114 to be connected, the
The primary of first normally opened contact 106 of two contactors 114 and the second normally opened contact 107 and voltage device 117 of second contactor 114
Lateral coil is connected；
3rd contactor 110 respectively with the first normally opened contact 104 of first contactor 109 and first contactor 109
Two normally opened contacts 105 are connected and realize that the 3rd contactor 110 is in parallel with first contactor 109；First contactor 109 passes through it
Normal contact 108 is connected with the first normally opened contact 104 of first contactor 109；
The contactor of normally-closed contact 112 and the 4th of the contactor 110 of normally-closed contact 111 and the 3rd of first contactor 109
115 normally opened contact 113 successively sequential concatenation second contactor 114 the first normally opened contact 106 and second contactor 114 it
Between；
First normally opened contact 106 of second contactor 114 and the second normally opened contact 107 of second contactor 114 are distinguished
It is connected with the 4th contactor 115 and realizes the 4th contactor 115 and be in parallel with second contactor 114；
Connected between first contactor 109 and second contactor 114 by mechanical interlock 116.
Wherein, the voltage device 117 has terminals X1, X3, X4, X2, terminals Ua, Va, Ub, Vb and earth terminal
GND, earth terminal GND connection ground wire PE, wherein terminals X3, X4 connection, terminals X1, X2 and the first breaker 102 and
2 ends of two breakers 103 and the connection of 5 ends.
Wherein, 1 end of first breaker 102 is distinguished the first main power source 100 with 2 ends and is connected, and 4 ends are connected with 6 ends；
1 end of the second breaker 103 is distinguished the second main power source 101 with 2 ends and is connected, and 4 ends are connected with 6 ends.
The design of the utility model control loop, it is simple in construction, it is easy to connect, using electric interlock and mechanical interlocked phase knot
The mode of conjunction, substantially increases the reliability that power supply switches moment.
Brief description of the drawings
Fig. 1 is the circuit diagram of redundant AC power automatic switching loop of the present utility model；
Fig. 2 is the wiring schematic diagram of the Inside coil of voltage device；
Fig. 3 is the line map of breaker.
Embodiment
Below, substantive distinguishing features of the present utility model and advantage are further described with reference to example, but this practicality is new
Type is not limited to listed embodiment.
Referring to shown in Fig. 1-3, a kind of redundant AC power automatic switching loop, including the first main power source 100 and second are led
Power supply 101, the first breaker 102 and the second breaker 103, the voltage device that 220 volts of alternating voltages are exported is realized by transformation
117, first contactor 109, second contactor 114, the 3rd contactor 110, the 4th contactor 115；
Wherein, the first main power source 100 is connected with the power input of the first breaker 102, the power supply of the first breaker 102
Output end passes through the first normally opened contact 104 of first contactor 109 and the second normally opened contact 105 of first contactor 109 and electricity
The primary side coil of depressor 117 is connected；
Second main power source 101 is connected with the power input of the second breaker 103, and the power supply of the second breaker 103 is defeated
Go out end with the first normally opened contact 106 of second contactor 114 with the second normally opened contact 107 of second contactor 114 to be connected, the
The primary of first normally opened contact 106 of two contactors 114 and the second normally opened contact 107 and voltage device 117 of second contactor 114
Lateral coil is connected；
3rd contactor 110 respectively with the first normally opened contact 104 of first contactor 109 and first contactor 109 the
Two normally opened contacts 105 are connected and realize that the 3rd contactor 110 is in parallel with first contactor 109；First contactor 109 passes through it
Normal contact 108 is connected with the first normally opened contact 104 of first contactor 109；
The contactor of normally-closed contact 112 and the 4th of the contactor 110 of normally-closed contact 111 and the 3rd of first contactor 109
115 normally opened contact 113 successively sequential concatenation second contactor 114 the first normally opened contact 106 and second contactor 114 it
Between；
First normally opened contact 106 of second contactor 114 and the second normally opened contact 107 of second contactor 114 are distinguished
It is connected with the 4th contactor 115 and realizes the 4th contactor 115 and be in parallel with second contactor 114；
Pass through the interlocking connection of mechanical interlock 116 between first contactor 109 and second contactor 114.
It should be noted that in the utility model, the connection between described each part is electric connection.The mechanical mutual
The mechanical interlock that locking device 116 carries for contactor, directly purchase existing product connect two contactors and connected on request
, it is prior art, this is no longer described in detail the utility model.
Specifically, in the utility model, the voltage device 117 has terminals X1, X3, X4, X2, terminals Ua, Va,
Ub, Vb and earth terminal GND, connect ground wire PE, wherein terminals X3, X4 connections, terminals X1, X2 and the first breaker 102
And second breaker 103 2 ends and 5 ends connection, 1 end and 2 ends of the first breaker 102 are distinguished the first main power source 100 and connected
Connect, 4 ends are connected with 6 ends, the connected mode of the second breaker 103 and the second main power source 102 and the first breaker 102 and the
The connected mode of one main power source 100 is identical, no longer describes in detail.
When the first main power source 100 and the second main power source 101 all normal power supplies, and the first breaker 102 and the second breaker
103 all normal ON when, the 3rd contactor 110 and the adhesive of the 4th contactor 115 so that the normally-closed contact of the 3rd contactor 110
112 actions are opened, and the dead electricity of second contactor 114, the normally-closed contact 108 of second contactor 114 is closed so that first contactor
109 obtain electric.
In this state, the first normally opened contact 104 of first contactor 109 and first contactor 109 in major loop
Second normally opened contact 105 is closed, and the first normally opened contact 106 of second contactor 114 normally opened is touched with the second of second contactor 114
Point 107 is disconnected so that main power source 100 is persistently powered to voltage device 117.
In order to prevent the two-way power supply for the moment appearance being just powered while the situation generation of powering load, the first contact
Interlocked between device 109 and second contactor 114 using mechanical interlock 116, that is, ensure interior first contactor at any time
109 act with the only one of which of second contactor 114.
Under above-mentioned this state, when the unexpected dead electricity of the second main power source 101, second contactor 114, the 4th contactor 115
Dead electricity, other control loop states are constant.
Under above-mentioned this state, when the unexpected dead electricity of the first main power source 100, the contactor 110 of first contactor 109 and the 3rd
Dead electricity, the normally-closed contact 112 of the contactor 110 of normally-closed contact 111 and the 3rd of first contactor 109 is changed into closure state, and second
Contactor 114 obtains electric, and the normally-closed contact 108 of second contactor 114 disconnects.Now transformer 117 switched in major loop by
The normally opened contact 106 of second contactor 114 is powered with normally opened contact 107.
In the process, the mechanical interlock 116 of first contactor 109 and second contactor 114 also prevent contact
The two-way power supply that device contact action moment occurs is while the situation of powering load occurs.
Particularly point out, the embodiment described by examples detailed above is the first main power source 100 and the second main power source 101 to be single-phase
220V is exchanged and load is the situation of AC transformer, and certainly, described the first main power source 100 and the second main power source 101 also may be used
Think that three-phase 380V to 690V is exchanged and loaded the situation for three phase alternating current motor.
The design of the utility model control loop, it is simple in construction, it is easy to connect, using electric interlock and mechanical interlocked phase knot
The mode of conjunction, substantially increases the reliability that power supply switches moment.
The above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (3)
1. a kind of redundant AC power automatic switching loop, it is characterised in that including the first main power source (100) and the second main power source
(101), the first breaker (102) and the second breaker (103), voltage device (117), first contactor (109), second contactor
(114), the contactor (115) of the 3rd contactor (110) the 4th；
Wherein, the first main power source (100) is connected with the power input of the first breaker (102), the electricity of the first breaker (102)
Source output terminal passes through the first normally opened contact (104) of first contactor (109) and the second normally opened contact of first contactor (109)
(105) primary side coil with voltage device (117) is connected；
Second main power source (101) is connected with the power input of the second breaker (103), the power supply of the second breaker (103)
The first normally opened contact (106) and the second normally opened contact of second contactor (114) of output end and second contactor (114)
(107) it is connected, the first normally opened contact (106) and the second normally opened contact (107) and the voltage device of second contactor (114)
(117) primary side coil is connected；
The first normally opened contact (104) and first contactor (109) of 3rd contactor (110) respectively with first contactor (109)
The second normally opened contact (105) be connected and realize that the 3rd contactor (110) is in parallel with first contactor (109)；First contact
Device (109) is connected by its normal contact (108) with the first normally opened contact (104) of first contactor (109)；
The normally-closed contact (111) of first contactor (109) connects with the normally-closed contact (112) of the 3rd contactor (110) and the 4th
The normally opened contact (113) of tentaculum (115) first normally opened contact (106) and the of the sequential concatenation in second contactor (114) successively
Between two contactors (114)；
The first normally opened contact (106) of second contactor (114) and the second normally opened contact (107) of second contactor (114)
It is connected respectively with the 4th contactor (115) and realizes the 4th contactor (115) and be in parallel with second contactor (114)；
It is connected between first contactor (109) and second contactor (114) by mechanical interlock (116).
2. redundant AC power automatic switching loop according to claim 1, it is characterised in that voltage device (117) tool
There are terminals X1, X3, X4, X2, terminals Ua, Va, Ub, Vb and earth terminal GND, earth terminal GND connection ground wire PE, wherein connecing
Line end X3, X4 are connected, terminals X1, X2 and the first breaker (102) and 2 ends of the second breaker (103) and 5 ends company
Connect.
3. redundant AC power automatic switching loop according to claim 1, it is characterised in that first breaker
(102) 1 end is distinguished the first main power source (100) with 2 ends and is connected, and 4 ends are connected with 6 ends；1 end and 2 of second breaker (103)
End the second main power source (101) connection respectively, 4 ends are connected with 6 ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621368366.5U CN206323208U (en) | 2016-12-14 | 2016-12-14 | A kind of redundant AC power automatic switching loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621368366.5U CN206323208U (en) | 2016-12-14 | 2016-12-14 | A kind of redundant AC power automatic switching loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206323208U true CN206323208U (en) | 2017-07-11 |
Family
ID=59266555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621368366.5U Active CN206323208U (en) | 2016-12-14 | 2016-12-14 | A kind of redundant AC power automatic switching loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206323208U (en) |
-
2016
- 2016-12-14 CN CN201621368366.5U patent/CN206323208U/en active Active
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