CN2529420Y

CN2529420Y - Power-supply automatic controller

Info

Publication number: CN2529420Y
Application number: CN 02212815
Authority: CN
Inventors: 范学勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-07
Filing date: 2002-02-07
Publication date: 2003-01-01
Anticipated expiration: 2012-02-07

Abstract

The utility model relates to a power-supply automatic controller. The utility model mainly comprises a machine shell, a front panel and a rear panel and connecting ends D of the rear panel. The utility model is characterized in that: the top of the front panel is provided with an operating switch QH, the connecting ends D totally have 12 from the D 1, D2 to D 20 and D 21, relays 1 YJ, 2 YJ, 3 YJ, ZJ and each relay contacting point and the operating switch QH form a controlling circuit which has the functions of signal sampling, logic and estimating and output controlling in the machine shell, and the controlling circuit is connected with the controlled power supply network by each connecting ends D. The utility model has the function of power supply cutting off, automatically resuming, open-phase protection, local control and remote control; when the two electricity supplying districts are mutually as the spare power supplies, the utility model has the function that the spare power supply automatically plunge with single direction or double directions and the utility model is provided with circuit protecting connectors.

Description

A kind of power supply automatic controller

Affiliated technical field:

The utility model relates to a kind of controller of communication power supply, especially a kind of power supply automatic controller that improves the ac power supply situation.

Background technology:

At present, the low-voltage distribution system in samll cities and towns and rural area also mostly is single power supply, and the fuse switch protection is adopted in the distribution transforming high-pressure side.This supply power mode, after the single-phase fusing of high-pressure side fuse occurring, phase-deficient operation then appears in low pressure, very easily burn out power consumption equipment, after the electric power system dead electricity was recovered, low pressure can not be recovered again automatically, also need manual reversion to send electricity, prolonged the low pressure interruption duration, have again, the reserve capacity of distribution transforming is not used, when high pressure branch line or distribution transforming maintenance, also need the user is had a power failure, reduced the reliability of power supply, in addition, the automatic closing of low pressure is gone into also very difficulty.

Summary of the invention:

The utility model is at the existing in prior technology deficiency, and a kind of technical scheme of power supply automatic controller is provided.

This programme is realized by following technical measures: mainly include casing, front panel and rear board, and the binding post D on the plate in the back, the characteristics of this programme are that console switch QH is arranged on described front panel, described binding post D has 21, from D1, D2 to D20, D21, in described casing, by relay 1YJ, 2YJ, 3YJ, ZJ and each relay contact and console switch QH composition have signal sampling, logic determines, the control circuit of control output function, described control circuit is connected with the charged power network by each binding post D.The physical circuit of the described control circuit of this scheme is, the normally opened contact 1YJ-1 of binding post D1 serial connection relay 1YJ, be connected in series behind the normally-closed contact 1YJ-2 of the normally opened contact 2YJ-1 of relay 2YJ and relay 1YJ in parallel with binding post D9, meet D19 after being connected in series the normally opened contact 3YJ-1 of relay 3YJ again, meet D20 behind the normally opened contact 1YJ-3 of binding post D3 serial connection relay 1YJ, meet D20 behind the normally opened contact 2YJ-2 of binding post D11 serial connection relay 2YJ and the normally-closed contact 1YJ-4 of relay 1YJ, binding post D20 meets D19 after being connected in series relay 3YJ and its normally opened contact 3YJ-1 again, binding post D5 is connected with D2, D4 serial connection relay 1YJ meets D7, D7 meets D17 after being connected in series the normally opened contact 1YJ-5 of relay 1YJ again, binding post D13 is connected with D6, meet D15 behind the D8 serial connection relay 2YJ, D15 meets D17 behind the normally-closed contact 1YJ-6 of the normally opened contact 2YJ-3 of series relay 2YJ and relay 1YJ again, meet D19 behind the normally opened contact ZJ-1 of binding post D10 serial connection relay ZJ, meet D19 behind the normally-closed contact ZJ-3 of D21 serial connection relay ZJ, the contact 1 of console switch QH, 5,11 connect D19, contact 2 connects binding post D16 and D18, contact 6 meets D18 after connecting the normally-closed contact ZJ-2 that D14 are connected in series relay ZJ simultaneously, and contact 12 connects and meets D17 after D12 is connected in series relay ZJ simultaneously.Between described binding post D2 and D4, also has the short-circuit piece LP that can connect or disconnect.Between described binding post D12 and D19, can also connect protective circuit BH.Described relay 1YJ, 2YJ and ZJ are the miniature relays of model HH53P, 220V, 5A.Described relay 3YJ is that model is the miniature relay of HH52P, 380V, 5A.Described console switch QH is that model is the universal seclector of LW12-16.

The beneficial effect of this programme can be obtained by such scheme, and this scheme is when using, and binding post D1, D3, D5, D7 meet A phase 1Ua, B phase 1Ub, C phase 1Uc and the zero line 1Un of input 380V electrical network respectively as a class input sample voltage.Binding post D9, D11, D13, D15 meet output control terminal A phase 2Ua, B phase 2Ub, C phase 2Uc and the zero line 2Un of controlled switch respectively, as another kind of input sample voltage.Binding post D18 connects the closing coil of controlled switch, binding post D21 connects the hold-in winding of controlled switch, binding post D2, D4 and D6, D8 connect two auxiliary normally-closed contacts of controlled switch respectively, connect the auxiliary normally-closed contact of controlled switch between binding post D10 and the D12.The working power of this programme controller is taken from sampled voltage, and when electric power system did not have electricity, controller was not worked, and output voltage disappears, and controlled switch separating brake is isolated load and electric power system.When electric power system restores electricity, 1Ua, 1Ub, 1Uc and 1Un sampled voltage recover, relay 1YJ has electronic work, and 1YJ-5 connects, and D17 and zero line are connected provides zero potential Vn, 1YJ-1 and 1YJ-3 closure, relay 3YJ has electronic work, and 3YJ-1 closed D19 provide A phase voltage Va, and control loop obtains operating voltage, 1YJ-2,1YJ-4 and 1YJ-6 disconnect simultaneously, and another sampled voltage 2Ua, 2Ub, 2Uc and 2Un are isolated.Console switch QH is at automated location,

contact

5,6 is logical, 1,2 and 11,12 is obstructed, relay ZJ does not have electricity and is failure to actuate, ZJ-2 and ZJ-3 closure for D18 and D21 provide Va voltage, provide the power supply that closes a floodgate and keep for controlled switch, make controlled switch automatic closing, realized the outage function of electric automatic closing afterwards.Utilize the operating principle of sampled voltage 2Ua, 2Ub, 2Uc and 2Un same as described above.

The controller of this programme also has defencive function to electrical network input phase shortage, when electrical network A phase phase shortage, and no Va voltage, controlled switch loses the maintenance power supply, and controlled switch is with the dropout separating brake; When electrical network B phase phase shortage, relay 3YJ does not have electricity, and 3YJ-1 disconnects, and will not have Va voltage, and controlled switch loses the maintenance power supply, and controlled switch is with the dropout separating brake; When electrical network C phase phase shortage, relay 1YJ does not have electricity, and 1YJ-1,1YJ-3 and 1YJ-5 disconnect, and will not have Va voltage, and controlled switch loses the maintenance power supply, and controlled switch is with the dropout separating brake.During equally to sampled voltage 2Ua, 2Ub, 2Uc and 2Un phase shortage, operating principle is identical.As seen, when any phase phase shortage of three-phase electricity, controlled switch has been realized open-phase protection with separating brake.

The console switch QH of this programme also can realize automatic control, control and far remote control on the spot.Automatically during control, it is 1,2 and 11,12 obstructed that the

contact

5,6 of console switch QH communicates, and it moves as hereinbefore.When controlling on the spot, the

contact

1,2 and 5,6 and 1,12 of console switch QH is all obstructed, and when closing a floodgate on the spot, with

contact

1,2 moments connection, D18 gets Va voltage, and controlled switch closing coil gets electric combined floodgate; When separating brake on the spot, 11,12 moments of contact are connected, relay ZJ gets, ZJ-2, ZJ-3 disconnect, and controlled switch loses combined floodgate and keeps power supply and separating brake, simultaneously the ZJ-1 closure, the normally closed auxiliary contact and the D12 that make D10 pass through controlled switch again connect, and make relay ZJ self-sustaining.During remote control in distant, the

contact

5,6 of console switch QH communicates, and 1,2 and 11,12 disconnect, binding post D12, D14 are connected with the power distribution automation interface with D16, when remote control is closed a floodgate, D14 and D16 are connected, during the remote control separating brake, D12 and D14 are connected, its action with control on the spot identical.

Between binding post D12 and D19, can also be connected to protective circuit BH, when protective circuit BH work plays a protective role; D12 gets Va voltage, and relay ZJ has electricity, and ZJ2 and ZJ3 are disconnected; controlled switch loses and closes a floodgate and keep power supply and separating brake makes electric power system separate with load.

When two independently-powered districts of first, second are arranged, available this programme is realized stand-by power supply each other, when the Dang Jia district cuts off the power supply, can the power supply in second district be put into the first district automatically by this controller, can make the first district continue power supply, improved the power supply quality in first district, vice versa, so can realize two-way stand-by power supply each other.If master and slave power supply is distinguished in two power supplies, when when power supply area cut off the power supply, also can power supply unidirectional automatic input in main power source district be given from power supply area by this controller, make from power supply area and continue to obtain to power.

By to the statement of this programme above-mentioned functions as seen, the utility model compared with prior art has substantive distinguishing features and progress, and the beneficial effect of its enforcement also is conspicuous.

Description of drawings:

Fig. 1 is the structural representation of the utility model embodiment.

The circuit diagram that Fig. 2 uses for the utility model embodiment.

Embodiment:

For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by an embodiment.

By accompanying drawing as can be seen, the power supply automatic controller of this programme, mainly include casing (2), front panel (1) and rear board (3), and the binding post D on the plate in the back, the characteristics of this programme are that model is arranged on described front panel (1) is the console switch QH of LW12-16 universal seclector, described binding post D has 21, from D1, D2 to D20, D21, in described casing (2), by model is HH53P, 220V, the miniature relay 1YJ of 5A, model is HH53P, 220V, the miniature relay 2YJ of 5A, model is HH52P, 380V, the miniature relay 3YJ of 5A, model is HH53P, 220V, the miniature relay ZJ of 5A and each relay contact and console switch QH composition have signal sampling, logic determines, the control circuit of control output function, described control circuit is connected with the charged power network by each binding post D.The physical circuit of described control circuit is, the normally opened contact 1YJ-1 of binding post D1 serial connection relay 1YJ, be connected in series behind the normally-closed contact 1YJ-2 of the normally opened contact 2YJ-1 of relay 2YJ and relay 1YJ in parallel with binding post D9, meet D19 after being connected in series the normally opened contact 3YJ-1 of relay 3YJ again, meet D20 behind the normally opened contact 1YJ-3 of binding post D3 serial connection relay 1YJ, meet D20 behind the normally opened contact 2YJ-2 of binding post D11 serial connection relay 2YJ and the normally-closed contact 1YJ-4 of relay 1YJ, binding post D20 meets D19 after being connected in series relay 3YJ and its normally opened contact 3YJ-1 again, binding post D5 is connected with D2, D4 serial connection relay 1YJ meets D7, D7 meets D17 after being connected in series the normally opened contact 1YJ-5 of relay 1YJ again, binding post D13 is connected with D6, meet D15 behind the D8 serial connection relay 2YJ, D15 meets D17 behind the normally-closed contact 1YJ-6 of the normally opened contact 2YJ-3 of series relay 2YJ and relay 1YJ again, meet D19 behind the normally opened contact ZJ-1 of binding post D10 serial connection relay ZJ, meet D19 behind the normally-closed contact ZJ-3 of D21 serial connection relay ZJ, the contact 1 of console switch QH, 5,11 connect D19, contact 2 connects binding post D16 and D18, contact 6 meets D18 after connecting the normally-closed contact ZJ-2 that D14 are connected in series relay ZJ simultaneously, and contact 12 connects and meets D17 after D12 is connected in series relay ZJ simultaneously.Between described binding post D2 and D4, also has the short-circuit piece LP that can connect or disconnect.Between described binding post D12 and D19, can also connect protective circuit BH.

Claims

1. power supply automatic controller, mainly include casing, front panel and rear board, and the binding post D on the plate in the back, it is characterized in that: console switch QH is arranged on described front panel, described binding post D has 21, from D1, D2 to D20, D21, in described casing, by relay 1YJ, 2YJ, 3YJ, ZJ and each relay contact and console switch QH form have signal sampling, the control circuit of logic determines, control output function, described control circuit is connected with the charged power network by each binding post D.

2. power supply automatic controller according to claim 1, its feature: be that described control circuit is the normally opened contact 1YJ-1 of binding post D1 serial connection relay 1YJ, be connected in series behind the normally-closed contact 1YJ-2 of the normally opened contact 2YJ-1 of relay 2YJ and relay 1YJ in parallel with binding post D9, meet D19 after being connected in series the normally opened contact 3YJ-1 of relay 3YJ again, meet D20 behind the normally opened contact 1YJ-3 of binding post D3 serial connection relay 1YJ, meet D20 behind the normally opened contact 2YJ-2 of binding post D11 serial connection relay 2YJ and the normally-closed contact 1YJ-4 of relay 1YJ, binding post D20 meets D19 after being connected in series relay 3YJ and its normally opened contact 3YJ-1 again, binding post D5 is connected with D2, D4 serial connection relay 1YJ meets D7, D7 meets D17 after being connected in series the normally opened contact 1YJ-5 of relay 1YJ again, binding post D13 is connected with D6, meet D15 behind the D8 serial connection relay 2YJ, D15 meets D17 behind the normally-closed contact 1YJ-6 of the normally opened contact 2YJ-3 of series relay 2YJ and relay 1YJ again, meet D19 behind the normally opened contact ZJ-1 of binding post D10 serial connection relay ZJ, meet D19 behind the normally-closed contact ZJ-3 of D21 serial connection relay ZJ, the contact 1 of console switch QH, 5,11 connect D19, contact 2 connects binding post D16 and D18, contact 6 meets D18 after connecting the normally-closed contact ZJ-2 that D14 are connected in series relay ZJ simultaneously, and contact 12 connects and meets D17 after D12 is connected in series relay ZJ simultaneously.

3. power supply automatic controller according to claim 1 and 2 is characterized in that: also have the short-circuit piece LP that can connect or disconnect between described binding post D2 and D4.

4. power supply automatic controller according to claim 1 and 2 is characterized in that: can also connect protective circuit BH between described binding post D12 and D19.

5. power supply automatic controller according to claim 2 is characterized in that: described relay 1YJ, 2YJ and ZJ are the miniature relays of model HH53P, 220V, 5A.

6. power supply automatic controller according to claim 2 is characterized in that: described relay 3YJ is that model is the miniature relay of HH52P, 380V, 5A.

7. power supply automatic controller according to claim 2 is characterized in that: described console switch QH is that model is the universal seclector of LW12-16.