CN2519285Y - Excess voltage protector action recording apparatus - Google Patents
Excess voltage protector action recording apparatus Download PDFInfo
- Publication number
- CN2519285Y CN2519285Y CN 01279212 CN01279212U CN2519285Y CN 2519285 Y CN2519285 Y CN 2519285Y CN 01279212 CN01279212 CN 01279212 CN 01279212 U CN01279212 U CN 01279212U CN 2519285 Y CN2519285 Y CN 2519285Y
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- CN
- China
- Prior art keywords
- circuit
- registering instrument
- overvoltage protection
- instrument
- transformer
- 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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Abstract
The utility model discloses a recorder for overvoltage protective actions and comprises a recorder box (1), wherein, the recorder box (2) is internally provided with a sample circuit, a shaping circuit and a control display circuit which consist of electric elements; the circuits in the recorder box are electrically connected, forming a recorder for overvoltage protective actions.
Description
Described field
The utility model relates to a kind of improved overvoltage protection device action record instrument, belongs to electronic product resist technology field.
Background technology
Overvoltage protection device action record instrument is one of power industry electronic product commonly used, is used to monitor the production of power network overvoltage, and the power network overvoltage production is in time shown.Note.Existing overvoltage protection device action record instrument, the electronic component of its sample circuit are the conventional, electric-resistance of series connection, and its controlling recording instrument is a single card microcomputer.Resistance directly is serially connected with between high-tension circuit and the registering instrument,, adopts high voltage isolation techniques, voltage is delivered to its registering instrument by single card microcomputer control that links to each other in ohmically voltage division signal carry out record in order to allow overvoltage signal arrive single card microcomputer.The shortcoming of this existing overvoltage protection device action record instrument is that safety coefficient is low, the cost height.When the high pressure buffer circuit breaks down, operating personnel and equipment are constituted high pressure harm.
Summary of the invention
The utility model purpose is the defective that exists at existing overvoltage protection device action record instrument; a kind of improved overvoltage protection device action record instrument is provided; it is the sample circuit signal that this improved overvoltage protection device action record instrument adopts the electric signal of solenoid induction; sample circuit passes through the shaping circuit shaping after getting electric signal, delivers to display demonstration, record by Sheffer stroke gate control then.This improved overvoltage protection device action record instrument directly is not concatenated in the high-tension circuit, but adopts the inductive coil sampling, thereby can not go out at high-tension electricity operating personnel and facility to be constituted harm, assurance instrument trouble free service.Adopt NAND gate circuit control electronic console record simultaneously, make that this display cost is low.
Description of drawings
Accompanying drawing is the electric principle schematic of the utility model embodiment
Specific embodiments
As shown in drawings, the utility model is made of sample circuit, shaping circuit and control, display circuit.Sample circuit is the transformer B1-B4 that is enclosed within discharge loop, and wherein B1-B3 is enclosed within on the discharge loop of phase line, and B4 is enclosed within on the ground wire.B1-B4 transformer structure is identical, is elementary with discharge loop all, and secondary is step-up coil.As seen from the figure, one end of the primary coil of transformer B1-B3 joins through resistance R 1, R2 and R3 and three-phase electricity respectively, its other end links to each other with an end of the primary coil of transformer B4 jointly, and the other end of transformer B4 primary coil is connected in resistance R 4, and the other end of resistance R 4 joins with ground.In the secondary coil of transformer B1-B4, be connected with bridge rectifier circuit ZL1-ZL4, transformer B1-B4 and the ZL1-ZL4 that is connected in the bridge rectifier in their secondary coils have constituted sample circuit of the present utility model.Constituted shaping circuit of the present utility model with voltage stabilizing, filter element W1-W4 and C1-C4 that bridge rectifier ZL1-ZL4 links to each other respectively.Shaping circuit output terminal separately is electrically connected with the input end of six Sheffer stroke gate YF1-YF6 as shown in the figure, and the output terminal of Sheffer stroke gate YF1-YF6 is electrically connected with digital indicator SZ1-SZ6.Above each element, device are contained in the box (1) of registering instrument, make the overvoltage protection registering instrument.As shown in drawings, each is taken a sample, shaping circuit is by the elementary of transformer B and be connected in bridge rectifier ZL, the stabilivolt W of B level of transformer and sampling, the shaping circuit that filter capacitor C forms; Control, display circuit are made up of the digital indicator SZ that the Sheffer stroke gate YF that is connected with sampling, shaping circuit reaches and Sheffer stroke gate YF is electrically connected.The used unit of this registering instrument, device all are existing components and parts on the market.
If electrical network is ground or alternate when superpotential occurring and making the overvoltage protection device action mutually; on transformer B1-B4, produce induced current; this electric current makes in the transformer B1-B4 secondary coil and also produces induced current; secondary induced current after bridge rectifier ZL1 and ZL4 rectification again through voltage stabilizer W1-W4 voltage stabilizing, filter capacitor C1-C4 filtering, shaping; then the electric signal after the shaping is delivered to Sheffer stroke gate YF1-YF6; carry out and non-comparison, the electric signal after will comparing at last exports display SZ1-SZ to and goes up demonstration, writes down.
Claims (4)
1, a kind of overvoltage protection registering instrument, it contains the box (1) of registering instrument, it is characterized in that: described overvoltage protection registering instrument is that sample circuit, shaping circuit, control display circuit are installed in box (1), and they are electrically connected, and makes overvoltage protection action record instrument;
2, by the described registering instrument of claim 1, it is characterized in that: the sample circuit that the rectifier ZL1-ZL2 secondary, that be used for rectification that described sample circuit contains the transformer B1-B4 that is useful on electromagnetic conversion, be connected in transformer B1-B4 forms;
3, by the described registering instrument of claim 1, it is characterized in that: the shaping circuit that the capacitor C 1-C4 that described shaping circuit is used by voltage stabilizer W1-W4 that is electrically connected on bridge rectifier ZL1-ZL4 output terminal and filtering forms;
4, by the described registering instrument of claim 1, it is characterized in that: described control display circuit is the Sheffer stroke gate YF1-YF6 that is electrically connected on shaping circuit, is connected in the control display circuit of the digital indicator SZ1-SZ6 composition of Sheffer stroke gate YF1-YF6 output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01279212 CN2519285Y (en) | 2001-12-18 | 2001-12-18 | Excess voltage protector action recording apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01279212 CN2519285Y (en) | 2001-12-18 | 2001-12-18 | Excess voltage protector action recording apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2519285Y true CN2519285Y (en) | 2002-10-30 |
Family
ID=33682509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01279212 Expired - Fee Related CN2519285Y (en) | 2001-12-18 | 2001-12-18 | Excess voltage protector action recording apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2519285Y (en) |
-
2001
- 2001-12-18 CN CN 01279212 patent/CN2519285Y/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 | ||
| 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 |