CN103762716A - Auto-putting-in and auto-recovering power supply system - Google Patents
Auto-putting-in and auto-recovering power supply system Download PDFInfo
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- CN103762716A CN103762716A CN201410036859.8A CN201410036859A CN103762716A CN 103762716 A CN103762716 A CN 103762716A CN 201410036859 A CN201410036859 A CN 201410036859A CN 103762716 A CN103762716 A CN 103762716A
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Abstract
The invention discloses an auto-putting-in and auto-recovering power supply system. The auto-putting-in and auto-recovering power supply system comprises a main branch with the electricity supplied by electric supply and an auxiliary branch with the electricity supplied by an engine. The wire outlet side of the main branch and the wire outlet side of the auxiliary branch are connected with the same lower end load, an A-phase wire, a B-phase wire and a C-phase wire of the main branch are provided with a first breaker, and an A-phase wire, a B-phase wire and a C-phase wire of the auxiliary branch are provided with a second breaker. The first breaker is provided with a first closing loop controlling the closing of the first breaker and a first opening loop controlling the opening of the first breaker. The second breaker is provided with a second closing loop controlling the closing of the second breaker and a second opening loop controlling the opening of the second breaker. The first closing loop and the second closing loop are electrically interlocked so that the second opening loop can be started when the first closing loop works, the first opening loop and the second opening loop are electrically interlocked so that the second closing loop can be started when the first opening loop works, and the auto-putting-in and auto-recovering purposes of the two paths of power supply of the electric supply and the electricity generating are achieved.
Description
Technical field
The present invention relates to electric power system, especially a kind of electric power system of hauling oneself willingly into runback.
Background technology
Under the 380V system of civil power and generating duplex feeding, end load is generally important load, and it is had relatively high expectations to power supply reliability, requires the system can uninterrupted power supply.Two lead-in circuit breakers of this type systematic one general configuration, one is civil power lead-in circuit breaker, its incoming power is taken from civil power; One is generating lead-in circuit breaker, and its incoming power is taken from generator.Under normal condition, adopt mains-supplied, once civil power power down, requiring system to switch at once contingency mode is generator powered pattern, because power distribution room is usually unattended, for guaranteeing the uninterrupted power supply to system loading, this just requires system in the situation that of civil power power down can automatically switch to generator powered pattern; And when civil power recovers to supply with, system can detect and automatically restore to mains-supplied pattern automatically, Here it is " haul oneself willingly into runback " mode of operation.So, how this type systematic is realized " haul oneself willingly into runback " supply power mode.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide the electric power system of hauling oneself willingly into runback between a kind of civil power and generating duplex feeding.
The technical solution used in the present invention is:
A kind of electric power system of hauling oneself willingly into runback, it is characterized in that: comprise the main branch road of mains-supplied, the secondary branch road of generator powered, the outgoing line side of described main branch road and secondary branch road is connected same lower end load, in the A of described main branch road, B, C triple line, be provided with the first circuit breaker, in the A of described secondary branch road, B, C triple line, be provided with the second circuit breaker; Described the first circuit breaker has the first closing circuit of controlling its combined floodgate and the first sub-gate circuit of controlling its separating brake; Described the second circuit breaker has the second closing circuit of controlling its combined floodgate and the second sub-gate circuit of controlling its separating brake; Electrical interlock between described the first closing circuit and the second sub-gate circuit is so that in first closing circuit when work, started the second sub-gate circuit, and electrical interlock between described the first sub-gate circuit and the second closing circuit is so that the first sub-gate circuit starts the second closing circuit while working.
Further, it also comprises the first auxiliary relay and the second auxiliary relay, very first time relay and second time relay; The coil of described the first auxiliary relay is connected between the A, B phase line of civil power inlet wire side, and the coil of described the second auxiliary relay is connected between the B, C phase line of civil power inlet wire side;
Described the first closing circuit is by the A of civil power inlet wire side, the power supply of N phase line, comprise and being connected successively by A to N phase line: the normally closed auxiliary contact II of the second circuit breaker, the first combined floodgate parallel circuits, this first combined floodgate parallel circuits You Liangtiaochuan road is formed in parallel, wherein, article one, the normally opened contact of string route the first auxiliary relay, the normally opened contact of the second auxiliary relay, the coil of very first time relay, the normally closed auxiliary contact I of the first circuit breaker is in series, the normally opened contact of second string route very first time relay and the closing coil of the first circuit breaker are in series,
Described the first sub-gate circuit is powered by A, the N phase line of generator inlet wire side, comprises the normally-closed contact of the first auxiliary relay being connected successively by A to N phase line, the switching winding of the normally-closed contact of the second auxiliary relay, the first circuit breaker;
Described the second closing circuit is by the A of generator inlet wire side, the power supply of N phase line, comprise and being connected successively by A to N phase line: the normally closed auxiliary contact II of the first circuit breaker, the second combined floodgate parallel circuits, this second combined floodgate parallel circuits You Liangtiaochuan road is formed in parallel, wherein, article one, the normally-closed contact of string route the first auxiliary relay, the normally-closed contact of the second auxiliary relay, the coil of second time relay, the normally closed auxiliary contact I of the first circuit breaker is in series, the normally opened contact of second string route second time relay and the closing coil of the second circuit breaker are in series,
Described the second sub-gate circuit is powered by A, the N phase line of civil power inlet wire side, comprises the normally opened contact of the first auxiliary relay being connected successively by A to N phase line, the switching winding of the normally opened contact of the second auxiliary relay, the second circuit breaker.
Wherein, the model of described the first circuit breaker and the second circuit breaker is Schneider MT type circuit breaker.
Further, between described civil power inlet wire side A phase line and the coil of the first auxiliary relay, between described civil power inlet wire side B phase line and the coil of the first auxiliary relay, between described civil power inlet wire side C phase line and the coil of the second auxiliary relay, be provided with fuse.
Further, between described civil power inlet wire side A phase line and the first closing circuit, the second sub-gate circuit, be equipped with fuse, between described generator inlet wire side A phase line and the first sub-gate circuit, the second closing circuit, be equipped with fuse.
Beneficial effect of the present invention:
Electric power system of the present invention is passed through the inlet wire frame circuit breaker of two electrical interlocks of configuration to the main branch road of mains-supplied and the secondary branch road of generator powered, has realized the runback of hauling oneself willingly between civil power and generating duplex feeding.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
Fig. 1 is the schematic diagram of electric power system of the present invention;
Fig. 2 is the winding wiring figure of auxiliary relay;
Fig. 3 is combined floodgate and the separating brake control drawing of the first circuit breaker;
Fig. 4 is combined floodgate and the separating brake control drawing of the second circuit breaker.
In figure, each element and symbol are described below:
K1-civil power side lead-in circuit breaker (conventional side lead-in circuit breaker)
K2-generating inlet wire side circuit breaker (emergent side lead-in circuit breaker)
XF-K1(or K2) closing coil-its loop, place connect breaker closing
MX--K1(or K2) switching winding-its loop, place connect breaker open operation
OF1, OF2--K1(or K2) normally closed auxiliary contact
1FU1 ~ 5,2FU1 ~ 2-fuse-control loop is shielded, can fuse while control loop fault being detected and cutting-off controlling loop and isolated fault
Normal or the power down of 1ZJ, 2ZJ-auxiliary relay-detection civil power inlet wire side power supply
Whether KT1, KT2-time relay-detection reach the condition of Switching power.
Embodiment
Shown in figure 1, for a kind of electric power system of hauling oneself willingly into runback of the present invention, comprise the main branch road of mains-supplied, the secondary branch road of generator powered, the outgoing line side of described main branch road and secondary branch road is connected same lower end load, in the A of described main branch road, B, C triple line (corresponding X11, X12, X13 respectively), be provided with the first circuit breaker K1, in the A of described secondary branch road, B, C triple line (corresponding X21, X22, X23 respectively), be provided with the second circuit breaker K2; Described the first circuit breaker K1 has the first closing circuit 100 of controlling its combined floodgate and the first sub-gate circuit 200 of controlling its separating brake; Described the second circuit breaker K2 has the second closing circuit 300 of controlling its combined floodgate and the second sub-gate circuit 400 of controlling its separating brake; Electrical interlock between described the first closing circuit 100 and the second sub-gate circuit 400 is so that start the second sub-gate circuit 400 during the first closing circuit 100 work, and electrical interlock between described the first sub-gate circuit 200 and the second closing circuit 300 is so that the first sub-gate circuit 200 starts the second closing circuit 300 while working.In figure, solid line represents to be electrically connected, and dotted line represents control relation.
In addition, electric power system of the present invention also comprises the first auxiliary relay 1ZJ and the second auxiliary relay 2ZJ, very first time relay K T1 and the second time relay KT2; As Fig. 2, the coil of described the first auxiliary relay 1ZJ is connected between the A, B phase line (X11, X12) of civil power inlet wire side, and the coil of described the second auxiliary relay 2ZJ is connected between the B, C phase line (X12, X13) of civil power inlet wire side;
Concrete, as shown in Figure 3, described the first closing circuit 100 is by the A(X11 of civil power inlet wire side), the power supply of N phase line, comprise by A(X11) connect successively to N phase line: the normally closed auxiliary contact II OF2 of the second circuit breaker K2, the first combined floodgate parallel circuits, this first combined floodgate parallel circuits You Liangtiaochuan road is formed in parallel, wherein, article one, the normally opened contact of string route the first auxiliary relay 1ZJ, the normally opened contact of the second auxiliary relay 2ZJ, the coil of very first time relay K T1, the normally closed auxiliary contact I OF1 of the first circuit breaker K1 is in series, the normally opened contact of second string route very first time relay K T1 and the closing coil XF of the first circuit breaker K1 are in series,
Described the first sub-gate circuit 200 is by the A(X21 of generator inlet wire side), N phase line power supply, comprise by A(X21) normally-closed contact of the first auxiliary relay 1ZJ that connects successively to N phase line is, the switching winding MX of the normally-closed contact of the second auxiliary relay 2ZJ, the first circuit breaker K1;
As shown in Figure 4, described the second closing circuit 300 is by the A(X21 of generator inlet wire side), the power supply of N phase line, comprise by A(X21) connect successively to N phase line: the normally closed auxiliary contact II OF2 of the first circuit breaker K1, the second combined floodgate parallel circuits, this second combined floodgate parallel circuits You Liangtiaochuan road is formed in parallel, wherein, article one, the normally-closed contact of string route the first auxiliary relay 1ZJ, the normally-closed contact of the second auxiliary relay 2ZJ, the coil of the second time relay KT2, the normally closed auxiliary contact I of the first circuit breaker K1 is in series, the normally opened contact of second string route the second time relay KT2 and the closing coil XF of the second circuit breaker K2 are in series,
Described the second sub-gate circuit 400 is by the A(X11 of civil power inlet wire side), N phase line power supply, comprise by A(X11) normally opened contact of the first auxiliary relay 1ZJ that connects successively to N phase line is, the switching winding MX of the normally opened contact of the second auxiliary relay 2ZJ, the second circuit breaker K2.
Further perfect as the technical program, described civil power inlet wire side A(X11) between phase line and the coil of the first auxiliary relay 1ZJ, be provided with fuse 1FU1, described civil power inlet wire side B(X12) be provided with fuse 1FU2, described civil power inlet wire side C(X13 between phase line and the coil of the first auxiliary relay 1ZJ) be provided with fuse 1FU3 between phase line and the coil of the second auxiliary relay 2ZJ; Described civil power inlet wire side A(X11) between phase line and the first closing circuit 100, the second sub-gate circuit 400, be respectively arranged with fuse 1FU4,2FU2; described generator inlet wire side A(X21) between phase line and the first sub-gate circuit 200, the second closing circuit 300, be respectively arranged with fuse 1FU5,2FU1; these fuses shield to control loop, can fuse and cutting-off controlling loop and isolated fault while control loop fault being detected.
Electric power system of the present invention to haul oneself willingly into runback control model as follows:
1. initial condition is civil power normal power supply pattern (note X21 in native system, N is charged for a long time):
Assumed initial state K1, K2 be a moment in gate-dividing state all, X11 when civil power is normal, X12, X13, N normal supply, K1 control loop power supply is obtained, meanwhile, and 1ZJ, 2ZJ control coil obtains electric, 1ZJ, the action of 2ZJ contact, because of K1, K2, in gate-dividing state, K1 normally-closed contact OF1 is closed, and the OF2 normally-closed contact of K2 is closed, therefore time relay KT1 coil obtains electric, its normally opened contact timing closing closing coil XF of K1 obtains electric K1 automatic closing, if civil power keeps normally circuit breaker K1 to keep "on" position, system is in mains-supplied pattern;
2. by mains-supplied pattern, being switched to generating pusher side powers:
During civil power normal power supply K1 in "on" position and K2 in gate-dividing state, civil power power down is X11, X12, X13 dead electricity is 1ZJ, to return be that normally opened contact disconnects to 2ZJ coil losing electricity in its contact, normally-closed contact is closed, now, the switching winding MX of K1 obtains electric and causes the instantaneous automatic brake separating of K1, OF2 point because of K1 in K1 tripping operation event K2 control loop is closed simultaneously, 1ZJ, 2ZJ close point is also closed, K2 in gate-dividing state the OF1 of K2 be closure state, above condition meets KT2 coil and obtains and electricly cause its normally opened contact timing closing and therefore the closing coil of K2 obtains electric K2 automatic time delay and closes a floodgate, thereby after this civil power side keep in the process of power down K2 to keep closing a floodgate having realized civil power power down always after system from mains-supplied, automatically switch to the electrical source exchange of generating and power supply, also namely what is often called " haul oneself willingly into " process.
3. by generating electricity and powering mode returns to mains-supplied:
During generator normal power supply K2 in "on" position and K1 separating brake; Once city power recovery power supply is X11, X12, the X13 1ZJ that restores electricity, 2ZJ control coil obtains electric, 1ZJ, the action of 2ZJ contact, 1ZJ, 2ZJ normally opened contact is closed therefore the switching winding MX of K2 obtains the instantaneous separating brake of the electric K2 of causing; K2 separating brake and the OF2 normally-closed contact of K2 are closed, now because K1 is that K1 normally-closed contact OF1 is closed for gate-dividing state, therefore time relay KT1 coil obtains electric, its normally opened contact timing closing closing coil XF of K1 obtains electric K1 automatic time delay combined floodgate, if civil power keeps normally circuit breaker K1 to keep "on" position, system is in mains-supplied pattern.More than complete from the powering mode of generator and be switched to the electrical source exchange process of replying mains-supplied, also namely what is often called " runback " process.
More than complete " haul oneself willingly into runback " the detailed introduction of powering mode, realized the runback of hauling oneself willingly between civil power and generating duplex feeding.
It is to be noted; in electric power system of the present invention; the employing Schneider MT type circuit breaker of the first circuit breaker K1 and the second circuit breaker K2; under the same technical theme based on the present invention's design, solve the technical scheme that civil power and generating duplex feeding system " are hauled oneself willingly into runback "; all belong to protection scope of the present invention, as changed the conventional simple change of circuit breaker and control loop.
The foregoing is only preferential execution mode of the present invention, the present invention is not limited to above-mentioned execution mode, as long as within the technical scheme that realizes the object of the invention with basic identical means all belongs to protection scope of the present invention.
Claims (5)
1. an electric power system of hauling oneself willingly into runback, it is characterized in that: comprise the main branch road of mains-supplied, the secondary branch road of generator powered, the outgoing line side of described main branch road and secondary branch road is connected same lower end load, in the A of described main branch road, B, C triple line, be provided with the first circuit breaker, in the A of described secondary branch road, B, C triple line, be provided with the second circuit breaker; Described the first circuit breaker has the first closing circuit of controlling its combined floodgate and the first sub-gate circuit of controlling its separating brake; Described the second circuit breaker has the second closing circuit of controlling its combined floodgate and the second sub-gate circuit of controlling its separating brake; Electrical interlock between described the first closing circuit and the second sub-gate circuit is so that in first closing circuit when work, started the second sub-gate circuit, and electrical interlock between described the first sub-gate circuit and the second closing circuit is so that the first sub-gate circuit starts the second closing circuit while working.
2. a kind of electric power system of hauling oneself willingly into runback according to claim 1, is characterized in that: it also comprises the first auxiliary relay and the second auxiliary relay very first time relay and second time relay; The coil of described the first auxiliary relay is connected between the A, B phase line of civil power inlet wire side, and the coil of described the second auxiliary relay is connected between the B, C phase line of civil power inlet wire side;
Described the first closing circuit is by the A of civil power inlet wire side, the power supply of N phase line, comprise and being connected successively by A to N phase line: the normally closed auxiliary contact II of the second circuit breaker, the first combined floodgate parallel circuits, this first combined floodgate parallel circuits You Liangtiaochuan road is formed in parallel, wherein, article one, the normally opened contact of string route the first auxiliary relay, the normally opened contact of the second auxiliary relay, the coil of very first time relay, the normally closed auxiliary contact I of the first circuit breaker is in series, the normally opened contact of second string route very first time relay and the closing coil of the first circuit breaker are in series,
Described the first sub-gate circuit is powered by A, the N phase line of generator inlet wire side, comprises the normally-closed contact of the first auxiliary relay being connected successively by A to N phase line, the switching winding of the normally-closed contact of the second auxiliary relay, the first circuit breaker;
Described the second closing circuit is by the A of generator inlet wire side, the power supply of N phase line, comprise and being connected successively by A to N phase line: the normally closed auxiliary contact II of the first circuit breaker, the second combined floodgate parallel circuits, this second combined floodgate parallel circuits You Liangtiaochuan road is formed in parallel, wherein, article one, the normally-closed contact of string route the first auxiliary relay, the normally-closed contact of the second auxiliary relay, the coil of second time relay, the normally closed auxiliary contact I of the first circuit breaker is in series, the normally opened contact of second string route second time relay and the closing coil of the second circuit breaker are in series,
Described the second sub-gate circuit is powered by A, the N phase line of civil power inlet wire side, comprises the normally opened contact of the first auxiliary relay being connected successively by A to N phase line, the switching winding of the normally opened contact of the second auxiliary relay, the second circuit breaker.
3. a kind of electric power system of hauling oneself willingly into runback according to claim 2, is characterized in that: the model of described the first circuit breaker and the second circuit breaker is Schneider MT type circuit breaker.
4. a kind of electric power system of hauling oneself willingly into runback according to claim 2, is characterized in that: between described civil power inlet wire side A phase line and the coil of the first auxiliary relay, between described civil power inlet wire side B phase line and the coil of the first auxiliary relay, be provided with fuse between described civil power inlet wire side C phase line and the coil of the second auxiliary relay.
5. a kind of electric power system of hauling oneself willingly into runback according to claim 2, it is characterized in that: between described civil power inlet wire side A phase line and the first closing circuit, the second sub-gate circuit, be equipped with fuse, between described generator inlet wire side A phase line and the first sub-gate circuit, the second closing circuit, be equipped with fuse.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036859.8A CN103762716B (en) | 2014-01-24 | 2014-01-24 | A kind of electric power system hauling oneself willingly into runback |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410036859.8A CN103762716B (en) | 2014-01-24 | 2014-01-24 | A kind of electric power system hauling oneself willingly into runback |
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| CN103762716A true CN103762716A (en) | 2014-04-30 |
| CN103762716B CN103762716B (en) | 2016-06-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052148A (en) * | 2014-06-25 | 2014-09-17 | 南京南瑞继保电气有限公司 | Automatic switching and automatic recovery method and device suitable for diesel generator |
| CN104377561A (en) * | 2014-10-30 | 2015-02-25 | 张家港保税区天翔电气有限公司 | Energy-saving cabinet |
| CN104518566B (en) * | 2014-12-09 | 2016-08-31 | 山东潍坊烟草有限公司安丘分公司 | A kind of generating set and electrical network are powered automatic switchover program control device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2078026A (en) * | 1980-06-05 | 1981-12-23 | Nippon Electric Co | Engine generator power supply system |
| CN202840669U (en) * | 2012-09-11 | 2013-03-27 | 深圳市华诚电力设备有限公司 | Commercial power-generated power dual-power-supply automatic/hand-operated transition power supply circuit |
| CN203734375U (en) * | 2014-01-24 | 2014-07-23 | 中山市明阳电器有限公司 | Automatic charge and automatic recovery power supply system |
-
2014
- 2014-01-24 CN CN201410036859.8A patent/CN103762716B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2078026A (en) * | 1980-06-05 | 1981-12-23 | Nippon Electric Co | Engine generator power supply system |
| CN202840669U (en) * | 2012-09-11 | 2013-03-27 | 深圳市华诚电力设备有限公司 | Commercial power-generated power dual-power-supply automatic/hand-operated transition power supply circuit |
| CN203734375U (en) * | 2014-01-24 | 2014-07-23 | 中山市明阳电器有限公司 | Automatic charge and automatic recovery power supply system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052148A (en) * | 2014-06-25 | 2014-09-17 | 南京南瑞继保电气有限公司 | Automatic switching and automatic recovery method and device suitable for diesel generator |
| CN104377561A (en) * | 2014-10-30 | 2015-02-25 | 张家港保税区天翔电气有限公司 | Energy-saving cabinet |
| CN104518566B (en) * | 2014-12-09 | 2016-08-31 | 山东潍坊烟草有限公司安丘分公司 | A kind of generating set and electrical network are powered automatic switchover program control device |
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| CN103762716B (en) | 2016-06-15 |
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Effective date of registration: 20200416 Address after: 528400 No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province Patentee after: Guangdong Mingyang Electric Co., Ltd Address before: 528437 Jiangling West Road, Torch Development Zone, Guangdong, No. 25, No. Patentee before: ZHONGSHAN MINGYANG ELECTRIC Co.,Ltd. |
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Address after: No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province, 528400 Patentee after: Guangdong Mingyang Electric Co.,Ltd. Address before: No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province, 528400 Patentee before: Guangdong Mingyang Electric Co.,Ltd. |