CN2585465Y - Electric power capacity switching module - Google Patents
Electric power capacity switching module Download PDFInfo
- Publication number
- CN2585465Y CN2585465Y CN 02235396 CN02235396U CN2585465Y CN 2585465 Y CN2585465 Y CN 2585465Y CN 02235396 CN02235396 CN 02235396 CN 02235396 U CN02235396 U CN 02235396U CN 2585465 Y CN2585465 Y CN 2585465Y
- Authority
- CN
- China
- Prior art keywords
- permanent magnetic
- magnetic relay
- switching module
- electric capacitor
- capacitor switching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Electronic Switches (AREA)
- Relay Circuits (AREA)
Abstract
The utility model relates to an electric power capacity switching module, which organically combines a contact type permanent magnetic relay and a noncontact thyristor and utilizes a monolithic computer microprocessor to integrate a three-phase capacity switching control into a whole so as to carry out control. The utility model comprises the monolithic computer microprocessor, a watchdog circuit, a sequential connection driver, a permanent magnetic relay, an antiparallel one-way thyristor, an equipotential detecting circuit and a drive circuit, wherein, the monolithic computer microprocessor controls the switching sequence of the permanent magnetic relay and the thyristor through software programming, contactless control is ensured when the power capacitor is switched on and switched off, no inrush transient current switching is realized, the permanent magnetic relay is used for keeping the circuit on-state, and heat is not generated.
Description
The utility model relates to a kind of switch that the power capacitor switching is controlled, and relates to a kind of control module of power capacitor being carried out contactless throw-in and throw-off or rather.
Electric capacitor switching module is a kind of noncontacting switch that is used for capacitance compensation switching power capacitor, and switching capacitance is realized no-flashy-flow.Existing power capacitor switching mould is fast, extensively adopts high-power thyristor, and heating is high, bad adaptability, and useful life is short.Must to install large volume fin and cooling fan additional in order dispelling the heat, to make customer using cost improve, the compensator volume increases.
The purpose of this utility model is the electric capacitor switching module that a kind of permanent magnetic relay of design and controllable silicon combine, can overcome above-mentioned all shortcoming, need not to add heat abstractor, the advantage that have that volume is little, the life-span is long, easy for installation, and can adapt to various adverse circumstances.
The purpose of this utility model is achieved in that and includes singlechip microprocessor, watchdog circuit and the Control Driver that is linked in sequence, permanent magnetic relay, antiparallel one-way SCR, equipotential detection and drive circuit, it is characterized in that: described singlechip microprocessor is controlled permanent magnetic relay and silicon controlled break-make order by software programming, realize the no-flashy-flow switching, carry out contactless control, make mechanical contact and contactless combination.
Described driver is controlled the positive and negative of its output voltage by singlechip microprocessor, and then drives the break-make of permanent magnetic relay.
Described one-way SCR inverse parallel connects, and controls its forward and reverse conducting by equipotential detection and drive circuit, carries out the no-flashy-flow input, and no arcing disconnects.
Described electric capacitor switching module adopts permanent magnetic relay operation, does not generate heat.
Further specify technology of the present utility model below in conjunction with example and accompanying drawing.
Figure one is the structural principle block diagram of electric capacitor switching module of the present utility model.
Figure two is enforcement circuit diagrams of the module of electric capacitor switching shown in the figure one.
Referring to figure one, electric capacitor switching module of the present utility model mainly comprises singlechip microprocessor 1, WathDog2, driver 3, controllable silicon 4, permanent magnetic relay 5, equipotential detects 6 pairs of power capacitors 7 and carries out switching, and electric power condenser 7 can be Y-connection or dihedral connects.
Referring to figure two, the enforcement circuit of the switching of electric capacitor shown in figure module, with A is example mutually: behind power supply electrifying, + 5V operating voltage is connected, by optocoupler V1, V2 detection of grid voltage, when equipotential, drive controllable silicon SCR 1, the SCR2 conducting, after time-delay (program of being solidified by singlechip microprocessor is determined), singlechip microprocessor U1 sends control command, and Control Driver U3 sends the forward power supply signal, makes permanent magnetic relay K conducting, with the controllable silicon bypass, guarantee to realize contactless throw-in and throw-off when power capacitor 7 drops into, no-flashy-flow is kept by permanent magnetic relay during operation; When outage, when house dog U2 detection supply voltage drops to set-point, house dog U2 sends to energizing signal of singlechip microprocessor, and singlechip microprocessor is sent control command after receiving this signal, and Control Driver U3 sends the reverse electrical source signal, permanent magnetic relay K is disconnected, then, along with the capacitor discharge finishes, controllable silicon just cuts off the power supply, guarantee to realize when power capacitor 7 cuts off contactless disconnection, no arcing.
The electric capacitor switching module that the utility model relates to organically combines permanent magnetic relay of chattering type and non-contact type controllable silicon, utilizes singlechip microprocessor that three phase capacitance switching control sets is integral and controls.Singlechip microprocessor is controlled permanent magnetic relay and silicon controlled break-make order by software programming, guarantees power capacitor contactless control when energising and outage, realizes the no-flashy-flow switching, keeps "on" position with permanent magnetic relay, does not generate heat.
Claims (4)
1. this electric capacitor switching module, include singlechip microprocessor, watchdog circuit and the Control Driver that is linked in sequence, permanent magnetic relay, antiparallel one-way SCR, equipotential detection and drive circuit, it is characterized in that: described singlechip microprocessor is controlled permanent magnetic relay and silicon controlled break-make order by software programming, realize the no-flashy-flow switching, carry out contactless control, make mechanical contact and contactless combination.
2. electric capacitor switching module according to claim 1, it is characterized in that: described driver is controlled the positive and negative of its output voltage by singlechip microprocessor, and then drives the break-make of permanent magnetic relay.
3. electric capacitor switching module according to claim 1 is characterized in that: described one-way SCR inverse parallel connects, and controls its forward and reverse conducting by equipotential detection and drive circuit, carries out the no-flashy-flow input, and no arcing disconnects.
4. electric capacitor switching module according to claim 1 is characterized in that: described electric capacitor switching module adopts permanent magnetic relay operation, does not generate heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02235396 CN2585465Y (en) | 2002-06-03 | 2002-06-03 | Electric power capacity switching module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02235396 CN2585465Y (en) | 2002-06-03 | 2002-06-03 | Electric power capacity switching module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2585465Y true CN2585465Y (en) | 2003-11-05 |
Family
ID=33709919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02235396 Expired - Fee Related CN2585465Y (en) | 2002-06-03 | 2002-06-03 | Electric power capacity switching module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2585465Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237147B (en) * | 2007-11-30 | 2010-06-02 | 季小龙 | Integrated power capacitor |
-
2002
- 2002-06-03 CN CN 02235396 patent/CN2585465Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237147B (en) * | 2007-11-30 | 2010-06-02 | 季小龙 | Integrated power capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |