CN2416648Y - Anti-thunder and lightning overvoltage lower-voltage distribution box - Google Patents
Anti-thunder and lightning overvoltage lower-voltage distribution box Download PDFInfo
- Publication number
- CN2416648Y CN2416648Y CN 00222726 CN00222726U CN2416648Y CN 2416648 Y CN2416648 Y CN 2416648Y CN 00222726 CN00222726 CN 00222726 CN 00222726 U CN00222726 U CN 00222726U CN 2416648 Y CN2416648 Y CN 2416648Y
- Authority
- CN
- China
- Prior art keywords
- piezo
- resistance
- discharge tube
- overvoltage
- discharge
- 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
Links
Images
Abstract
The utility model relates to an anti-thunder and lightning overvoltage and lower-voltage distribution box, which comprises a box body, a divider, a quick switching circuit, an excess voltage absorbing and discharge circuit and a filter circuit, wherein, the input ends and the output ends of which are successively connected, wherein, a phase wire of the fast switching circuit is connected with one end of a normally closed contact of an electric leakage induction relay, the other end of the normally closed contact is connected with one end of a discharge tube, the discharge tube is successively connected in series with the electric leakage induction relay and a voltage dependent resistor and then connected with a zero line. The utility model has the advantages of high response speed, large flow rate, static electricity resistance, small leakage currents and long service life, and is capable of protecting electric equipment and preventing lightning protection devices from damages.
Description
The utility model relates to a kind of power distribution equipment of anti-overvoltage, particularly a kind of anti-thunder and lightning, superpotential low-tension distribution box.
Existing distribution box generally is made up of casing, breaker and safeties; this distribution box only has the function of overcurrent protection; lack overvoltage protection; when the overtension of electrical network; after for example the voltage high impulse that causes because of thunder and lightning enters electrical network; will damage power consumption equipment, the heavy losses that cause to the user.The relevant technologies personnel are provided with single piezo-resistance or discharge tube in distribution box for this reason; though it can play certain overvoltage protection effect; but to the powerful pulse surge in the electrical network; in the high arteries and veins of voltage that causes as the thunder and lightning of sensing in the electrical network; when piezo-resistance or discharge tube just are easy to breakdown burning out, damage protected power consumption equipment again.
The purpose of this utility model just provides a kind of simple in structure and anti-thunder and lightning overvoltage low-tension distribution box of service-strong, and it not only can protect power consumption equipment, can also prevent the damage of lightning protection components and parts reliably.
The purpose of this utility model is to realize by such technical scheme, it includes casing and breaker, it is characterized in that: it also includes quick minute deenergizing, overvoltage absorption discharge circuit and the LC filter circuit that input and output connect successively, the branch deenergizing is made of electric leakage induction relay, first discharge tube and first piezo-resistance fast, phase line is connected with normally-closed contact one end of electric leakage induction relay, the other end of normally-closed contact is connected with first discharge tube, one end, and first discharge tube is connected with zero line with electric leakage induction relay, first piezo-resistance series connection back successively.
Operation principle of the present utility model is such: electrical network powers for user's electric equipment after branch deenergizing, overvoltage absorb discharge circuit, LC filter circuit and breaker fast, when line voltage just often, branch deenergizing and overvoltage absorption discharge circuit is not all worked fast, the effect of LC filter circuit is that high-frequency signal is intercepted, influence user's electric equipment with the high-frequency signal on the control power line, simultaneously, also controlled user's the interior dried influence of scratching signal of electric equipment to electrical network; When line voltage surpassed normal value, overvoltage absorbs discharge circuit started working, and too high voltage was absorbed or discharge, to protect user's electric equipment; When each components and parts in overvoltage absorption discharge circuit of the voltage height on the electrical network can't bear; for example sense the powerful pulse voltage that thunder and lightning causes in the electrical network; the branch deenergizing is started working fast; first discharge tube and the energising of first piezo-resistance; the electric leakage induction relay makes the normally-closed contact action disconnect within 20 microseconds because of aliving; cut off getting in touch between electrical network and consumer electronics equipment and each lightning protection components and parts; thereby in the time of protection consumer electronics equipment, also prevented the damage of each lightning protection components and parts.
Owing to adopted technique scheme; the utlity model has simple in structure, response speed is fast, through-current capacity is big, antistatic, advantage such as leakage current is little, long service life and volume are little; it not only can protect power consumption equipment; can also prevent the damage of lightning protection components and parts reliably, be widely applicable for places such as household electrical appliance, electronic instruments, communication apparatus, microwave station, computer room and family expenses house lead in power supply.
Description of drawings of the present utility model is as follows:
Fig. 1 is the line map of the utility model phase structure;
Fig. 2 is the line map of the utility model three-phase structure;
Fig. 3 is the circuit diagram of 1,2,3 among Fig. 1 and Fig. 2.
The utility model is described in further detail below in conjunction with drawings and Examples:
As Fig. 1, shown in 2, the utility model includes casing and breaker 4, it is characterized in that: it also includes the quick minute deenergizing 1 that input and output connect successively, overvoltage absorbs discharge circuit 2 and LC filter circuit 3, as shown in Figure 3, fast branch deenergizing 1 is answered relay J by leakage inductance, the first discharge tube F1 and the first piezo-resistance VR1 constitute, phase line answers normally-closed contact J-1 one end of relay J to be connected with leakage inductance, the other end of normally-closed contact J-1 and first is imitated fulgurite F1 one end and is connected, and the first discharge tube F1 answers relay J with leakage inductance successively, first piezo-resistance VR1 series connection back is connected with zero line.
As shown in Figure 1, the utility model is applicable to single phase alternating current circuit, as shown in Figure 2, the utility model also is applicable to three-phase circuit, in conjunction with Fig. 3 as can be known, operation principle of the present utility model is such: electrical network is through quick branch deenergizing 1, overvoltage absorbs discharge circuit 2, C filter circuit 3 and breaker 4 backs power for user's electric equipment, when line voltage just often, branch deenergizing 1 and overvoltage absorption discharge circuit 2 is not all worked fast, the effect of LC filter circuit 3 is that high-frequency signal is intercepted, influence user's electric equipment with the high-frequency signal on the control power line, simultaneously, also controlled user's the interior dried influence of scratching signal of electric equipment to electrical network; When line voltage surpassed normal value, overvoltage absorbs discharge circuit 2 started working, and too high voltage was absorbed or discharge, to protect user's electric equipment; When each components and parts in overvoltage absorption discharge circuit 3 of the voltage height on the electrical network can't bear; for example sense the powerful pulse voltage that thunder and lightning causes in the electrical network; branch deenergizing 1 is started working fast; the first discharge tube F1 and first piezo-resistance VR1 energising; leakage inductance answers relay J that normally-closed contact J-1 action is disconnected; cut off getting in touch between electrical network and consumer electronics equipment and each lightning protection components and parts; thereby in the time of protection consumer electronics equipment, also prevented the damage of each lightning protection components and parts.
As shown in Figure 3, it is by the second piezo-resistance VR2 that overvoltage absorbs discharge circuit 2, the 3rd piezo-resistance VR3, the 4th piezo-resistance VR4, the second discharge tube F2 and the 3rd discharge tube F3 form, the second piezo-resistance VR2 is attempted by overvoltage and absorbs between the input and zero line of discharge circuit 2, the 3rd piezo-resistance VR3 be attempted by after the 4th piezo-resistance VR4 connects input that overvoltage absorbs discharge circuit 2 with zero between, the 3rd piezo-resistance VR3 is connected with ground with the end that the 4th piezo-resistance VR4 is connected, the second discharge tube F2 be attempted by overvoltage after the 3rd discharge tube F3 connects and absorb between the input and zero line of discharge circuit 2, the second discharge tube F2 is connected with ground with the end that the 3rd discharge tube F3 is connected.It is work like this that overvoltage absorbs discharge circuit 2: when line voltage just often, the resistance of each piezo-resistance and discharge tube be an infinity, is in off-state, does not all work; When line voltage exceeded the normal voltage certain value, for example, when the phase line-to-earth voltage exceeded certain value, the 3rd piezo-resistance VR3 was breakdown, forms superpotential absorption; When the zero line voltage to earth exceeded certain value, the 4th piezo-resistance VR4 was breakdown, forms superpotential absorption; When the voltage between phase line and the zero line exceeded certain value, the second piezo-resistance VR2 was breakdown, forms superpotential absorption; Thereby realized the first order protection of power consumption equipment.When line voltage high when each piezo-resistance can't be born; the second discharge tube F2 and the 3rd discharge tube F3 begin disruptive discharge; because the voltage at two ends is generally at the burning voltage of 130V during discharge tube discharge work; at this moment; each piezo-resistance does not quit work because of reaching puncture voltage, thereby has realized the second level protection of power consumption equipment.
As shown in Figure 3, LC filter circuit 3 is made up of the first inductance coil L1, the second inductance coil L2, first capacitor C 1 and second capacitor C 2, the first inductance coil L1 that one end is connected LC filter circuit 3 inputs is connected with first capacitor C, 1 series connection heel ground, the second inductance coil L2 that one end is connected zero line is connected with second capacitor C, 2 series connection heel ground, and the tie point of the tie point of the first inductance coil L1 and first capacitor C 1 and the second inductance coil L2 and second capacitor C 2 is as the output of LC filter circuit 3.
In sum; the utility model can be realized three-level protective to user's electric equipment; the effect that overvoltage absorbs each piezo-resistance in the discharge circuit 2 is to realize first order protection; the effect that overvoltage absorbs each discharge tube in the discharge circuit 2 is to realize second level protection, and the first discharge tube F1, the leakage inductance in the branch deenergizing 1 answers the relay J and the first piezo-resistance VR1 that the cut-out of major loop is protected to realize the third level fast.
Claims (3)
1. anti-thunder and lightning overvoltage low-tension distribution box, include casing and breaker (4), it is characterized in that: it also includes the quick minute deenergizing (1) that input and output connect successively, overvoltage absorbs discharge circuit (2) and LC filter circuit (3), divide deenergizing (1) by electric leakage induction relay (J) fast, first discharge tube (F1) and first piezo-resistance (VR1) constitute, phase line is connected with normally-closed contact (J-1) end of electric leakage induction relay (J), the other end of normally-closed contact (J-1) is connected with first discharge tube (F1) end, first discharge tube (F1) successively with the electric leakage induction relay (J), first piezo-resistance (VR1) series connection back is connected with zero line.
2. anti-thunder and lightning overvoltage low-tension distribution box as claimed in claim 1, it is characterized in that: it is by second piezo-resistance (VR2) that overvoltage absorbs discharge circuit (2), the 3rd piezo-resistance (VR3), the 4th piezo-resistance (VR4), second discharge tube (F2) and the 3rd discharge tube (F3) are formed, second piezo-resistance (VR2) is attempted by overvoltage and absorbs between the input and zero line of discharge circuit (2), the 3rd piezo-resistance (VR3) be attempted by after the 4th piezo-resistance (VR4) is connected input that overvoltage absorbs discharge circuit (2) with zero between, the 3rd piezo-resistance (VR3) is connected with ground with the end that the 4th piezo-resistance (VR4) is connected, second discharge tube (F2) be attempted by overvoltage after the 3rd discharge tube (F3) is connected and absorb between the input and zero line of discharge circuit (2), second discharge tube (F2) is connected with ground with the end that the 3rd discharge tube (F3) is connected.
3. as claim 1,2 described anti-thunder and lightning overvoltage low-tension distribution boxes, it is characterized in that: LC filter circuit (3) is by first inductance coil (L1), second inductance coil (L2), first electric capacity (C1) and second electric capacity (C2) are formed, first inductance coil (L1) that one end is connected LC filter circuit (3) input is connected with first electric capacity (C1) series connection heel ground, second inductance coil (L2) that one end is connected zero line is connected with second electric capacity (C2) series connection heel ground, and the tie point of the tie point of first inductance coil (L1) and first electric capacity (C1) and second inductance coil (L2) and second electric capacity (C2) is as the output of LC filter circuit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222726 CN2416648Y (en) | 2000-04-04 | 2000-04-04 | Anti-thunder and lightning overvoltage lower-voltage distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222726 CN2416648Y (en) | 2000-04-04 | 2000-04-04 | Anti-thunder and lightning overvoltage lower-voltage distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2416648Y true CN2416648Y (en) | 2001-01-24 |
Family
ID=33587402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00222726 Expired - Fee Related CN2416648Y (en) | 2000-04-04 | 2000-04-04 | Anti-thunder and lightning overvoltage lower-voltage distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2416648Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438254C (en) * | 2006-04-12 | 2008-11-26 | 叶林 | Thunderstroke protection circuit capable of avoiding being reliably protecting electric net power supply thander struck by directly |
| CN101599639B (en) * | 2008-06-06 | 2011-08-24 | 珠海市金宏辰新科技有限公司 | Single-phase power supply low-pass lightning arrester |
-
2000
- 2000-04-04 CN CN 00222726 patent/CN2416648Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438254C (en) * | 2006-04-12 | 2008-11-26 | 叶林 | Thunderstroke protection circuit capable of avoiding being reliably protecting electric net power supply thander struck by directly |
| CN101599639B (en) * | 2008-06-06 | 2011-08-24 | 珠海市金宏辰新科技有限公司 | Single-phase power supply low-pass lightning arrester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4584622A (en) | Transient voltage surge suppressor | |
| US4628394A (en) | Voltage surge suppressor | |
| CN2416648Y (en) | Anti-thunder and lightning overvoltage lower-voltage distribution box | |
| US20070222299A1 (en) | Waveform correction filters | |
| CN104377647A (en) | Electric leakage protection circuit | |
| CN204205560U (en) | leakage protection circuit | |
| CN115940081A (en) | Overvoltage protection device based on combination of multi-characteristic nonlinear resistance cards | |
| US5398150A (en) | Coordinated electric surge suppressor with means for suppressing oscillatory transient overvoltages | |
| CN207200270U (en) | A kind of transformer neutral point DC magnetic biasing earthing or grounding means | |
| CN2338898Y (en) | Comprehensive protection arrangement for safety use of electricity | |
| CN207910443U (en) | A kind of household protection against electric shock stacked switch | |
| CN206759044U (en) | A kind of D.C. magnetic biasing isolation earthed system based on capacitor | |
| CN2492932Y (en) | Power cord with anti-jamming protector | |
| Mokryani et al. | Analysis of ferroresonance in a 20kV distribution network | |
| CN2261102Y (en) | Thunder-proof ultra-voltage protector | |
| CN2311838Y (en) | Source lightning device | |
| CN211959079U (en) | Boost circuit with surge protection group, switching power supply and protection system | |
| CN2430829Y (en) | Static protector | |
| CN220401426U (en) | Nuclear electromagnetic pulse protection circuit | |
| CN2629309Y (en) | Antiinterference protector for electric appliance | |
| Hernanda et al. | Study of Petersen Coil Grounding System Inductance Variation on Ferroresonance in 150 kV Transformer | |
| CN2279027Y (en) | Automatic power supply lighting shock and leakage protector | |
| CN219592112U (en) | Wide-range DC magnetic bias suppression device | |
| CN2316757Y (en) | Lightning protection converter | |
| CN214255714U (en) | Reverse connection prevention and miniaturization extremely simplified surge protection circuit and surge protector |
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 |