CN202906428U - Reclosing circuit for control and protective switch controller - Google Patents
Reclosing circuit for control and protective switch controller Download PDFInfo
- Publication number
- CN202906428U CN202906428U CN 201220614857 CN201220614857U CN202906428U CN 202906428 U CN202906428 U CN 202906428U CN 201220614857 CN201220614857 CN 201220614857 CN 201220614857 U CN201220614857 U CN 201220614857U CN 202906428 U CN202906428 U CN 202906428U
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- Prior art keywords
- control
- bipolar transistor
- switch controller
- relay
- protective switch
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Abstract
The utility model discloses a reclosing circuit for a control and protective switch controller. The reclosing circuit comprises a singlechip, a bipolar transistor, a diode, a relay and a pickup coil of the control and protective switch controller. The singlechip is connected with a base electrode of the bipolar transistor. A grounded emitter of the bipolar transistor is grounded. A node where a collector of the bipolar transistor and one end of the diode are connected is connected with one end of the relay. A node where the other end of the diode and the other end of the relay are connected is connected to an internal power supply. One end of the pickup coil is connected with a zero line of an alternating current power supply through a contact of the relay, and the other end of the pickup coil is connected with a live wire of the alternating current power supply. According to the utility model, the singlechip controls disconnection and connection of the relay through the bipolar transistor, so as to control electricity of the pickup coil by the alternating current power supply, realize switching and breaking of the control and protective switch controller and reduce personnel operations.
Description
Technical field
The utility model relates to control and protective switch controller field, relates in particular to a kind of reclosing circuit for the control and protective switch controller.
Background technology
The control and protective switch controller has the function that mode that far distance automatic controlling and the control of manpower on the spot has concurrently is carried out control operation; time meta-current protection characteristic with cooperation; have control and protection from movingly, after the short circuit the continuous function of operation, can realize the control and protection to motor load, distribution load.But; traditional control and protective switch controller only has the overload long delay; short circuit short time-delay, short circuit is instantaneous, undercurrent; three-phase imbalance; the basic control functions such as overvoltage/undervoltage protection, these protection and control functions have certain limitation, after electric leakage and voltage failure open circuit are arranged; personnel are on-the-spot could to close a floodgate even also need behind the Failure elimination, can not in time recover to use.
The utility model content
For above-mentioned technical problem; the purpose of this utility model is to provide a kind of reclosing circuit for the control and protective switch controller; it passes through the power supply control to the pull-in winding of control and protective switch controller, the reclosing function of realization control and protective switch controller.
For reaching this purpose, the utility model by the following technical solutions:
A kind of reclosing circuit for the control and protective switch controller, it comprises the pull-in winding of single-chip microcomputer, bipolar transistor, diode, relay and control and protective switch controller; Described single-chip microcomputer is finished AC power to the energising control of pull-in winding by disconnection and the closure of bipolar transistor control relay, realizes combined floodgate and the separating brake of control and protective switch controller;
Wherein, described single-chip microcomputer is connected with the base stage of bipolar transistor, the grounded emitter of bipolar transistor, the collector electrode of bipolar transistor and the node after an end of diode is connected connect an end of relay, the other end of diode connects internal electric source with node after the other end of relay is connected, one end of pull-in winding is by the zero line of the contact connection AC power of relay, and the other end of pull-in winding connects the live wire of described AC power.
Especially, between the base stage of single-chip microcomputer and bipolar transistor, be serially connected with the first resistance.
Especially, described reclosing circuit for the control and protective switch controller also comprises the first electric capacity, the node ground connection of the emitter of one end and bipolar transistor, and the other end is connected an end of the first resistance with the node of the base stage of bipolar transistor.
Single-chip microcomputer is finished AC power to the energising control of pull-in winding by disconnection and the closure of bipolar transistor control relay in the utility model, realizes combined floodgate and the separating brake of control and protective switch controller, has reduced personnel's execute-in-place, saves cost.
Description of drawings
Fig. 1 is the reclosing circuit structure diagram that is used for the control and protective switch controller that the utility model embodiment provides.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model is described in further detail below in conjunction with drawings and Examples.
Please refer to shown in Figure 1ly, Fig. 1 is the reclosing circuit structure diagram that is used for the control and protective switch controller that the utility model embodiment provides.
The reclosing circuit that is used for the control and protective switch controller in the present embodiment comprises: the pull-in winding T of single-chip microprocessor MCU, the first resistance R 1, the first capacitor C 1, bipolar transistor Q1, diode D1, relay R L and control and protective switch controller.
Wherein, described the first resistance R 1 is connected in series between the base stage of single-chip microprocessor MCU and bipolar transistor Q1, the node ground connection GND of one end of described the first capacitor C 1 and the emitter of bipolar transistor Q1, the other end is connected an end of the first resistance R 1 with the node of the base stage of bipolar transistor Q1, the collector electrode of bipolar transistor Q1 and the node after the end of diode D1 is connected connect the end of relay R L, the other end of diode D1 connects internal electric source VCC with node after the other end of relay R L is connected, the end of pull-in winding T is by the zero line of the contact connection AC power of relay R L, and the other end of pull-in winding T connects the live wire of described AC power.
Described single-chip microprocessor MCU is finished AC power to the energising control of pull-in winding T by disconnection and the closure of bipolar transistor Q1 control relay RL, realizes combined floodgate and the separating brake of control and protective switch controller.When power consumption equipment works; single-chip microprocessor MCU is by the level of control bipolar transistor Q1 base stage; make bipolar transistor Q1 conducting; at this moment; relay R L adhesive armature; the closing of contact, the pull-in winding T of control and protective switch controller and AC power are connected, and the control and protective switch controller closes a floodgate.When leak current fault occurring, single-chip microprocessor MCU closes bipolar transistor Q1 by the level of control bipolar transistor Q1 base stage; at this moment, relay R L discharges armature, and the contact disconnects; pull-in winding T and AC power disconnect, control and protective switch controller separating brake.
The technical solution of the utility model is passed through the power supply control to the pull-in winding of control and protective switch controller, realizes the reclosing function of control and protective switch controller, has reduced personnel operation, saves cost.
Above-mentioned only is preferred embodiment of the present utility model and institute's application technology principle; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed in the protection range of the present utility model.
Claims (3)
1. a reclosing circuit that is used for the control and protective switch controller is characterized in that, comprises the pull-in winding of single-chip microcomputer, bipolar transistor, diode, relay and control and protective switch controller; Described single-chip microcomputer is finished AC power to the energising control of pull-in winding by disconnection and the closure of bipolar transistor control relay, realizes combined floodgate and the separating brake of control and protective switch controller;
Wherein, described single-chip microcomputer is connected with the base stage of bipolar transistor, the grounded emitter of bipolar transistor, the collector electrode of bipolar transistor and the node after an end of diode is connected connect an end of relay, the other end of diode connects internal electric source with node after the other end of relay is connected, one end of pull-in winding is by the zero line of the contact connection AC power of relay, and the other end of pull-in winding connects the live wire of described AC power.
2. the reclosing circuit device for the control and protective switch controller according to claim 1 is characterized in that, is serially connected with the first resistance between the base stage of single-chip microcomputer and bipolar transistor.
3. the reclosing circuit device for the control and protective switch controller according to claim 2; it is characterized in that; also comprise the first electric capacity, the node ground connection of the emitter of one end and bipolar transistor, the other end is connected an end of the first resistance with the node of the base stage of bipolar transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614857 CN202906428U (en) | 2012-11-19 | 2012-11-19 | Reclosing circuit for control and protective switch controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614857 CN202906428U (en) | 2012-11-19 | 2012-11-19 | Reclosing circuit for control and protective switch controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202906428U true CN202906428U (en) | 2013-04-24 |
Family
ID=48127053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220614857 Expired - Fee Related CN202906428U (en) | 2012-11-19 | 2012-11-19 | Reclosing circuit for control and protective switch controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202906428U (en) |
-
2012
- 2012-11-19 CN CN 201220614857 patent/CN202906428U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20151119 |
|
| EXPY | Termination of patent right or utility model |