CN86107664A - The 100A multifunctional electric leakage circuit breaker - Google Patents
The 100A multifunctional electric leakage circuit breaker Download PDFInfo
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- CN86107664A CN86107664A CN 86107664 CN86107664A CN86107664A CN 86107664 A CN86107664 A CN 86107664A CN 86107664 CN86107664 CN 86107664 CN 86107664 A CN86107664 A CN 86107664A CN 86107664 A CN86107664 A CN 86107664A
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- circuit breaker
- tripping device
- leakage
- normally opened
- leakage tripping
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Abstract
The 100A multifunctional electric leakage circuit breaker is on the basis of pure electromagnetic-type leakage circuit breaker, arranges a normally opened contact switch and a shunt release is set separately on leakage tripping device.The coil activation voltage of this shunt release is directly powered by main circuit power, and its power supply is controlled by the normally opened contact switch of leakage tripping device, and enough big impulsive force is provided during electric leakage, realizes the circuit breaker of hundreds of amperes of levels is disconnected.Drop to 75% o'clock of rated voltage at three phase mains phase shortage or voltage, this residual current circuit breaker also can be worked reliably.
Description
The present invention relates to a kind of by overcurrent or other unusual electric operating modes and the disconnect that moves.
Existing pure electromagnetic-type leakage circuit breaker is made up of zero sequence current mutual inductor, leakage tripping device and mechanical transmission mechanism.Its leakage tripping device is made up of elements such as coil, permanent magnet, iron core, armature, reaction springs.When electric shock or electric leakage took place, electric shock or electric leakage signal were transported to the coil of leakage tripping device from the secondary winding of current transformer.The magnetic field that coil produces is opposite with the magnetic direction of permanent magnet, cancels out each other, and this moment is under the effect of reaction spring; armature discharges instantaneous impact; the action of promotion mechanical transmission mechanism disconnects the circuit breaker of original closure, gets an electric shock or earth leakage protective purpose thereby reached.
Above-mentioned electromagnetic-type leakage circuit breaker, the power of the secondary winding output signal of its zero sequence current mutual inductor is about the 100-150 microwatt.Can make the leakage tripping device action, the instantaneous impact when being discharged by leakage tripping device armature disconnects the circuit breaker of low capacity by mechanical transmission mechanism.For the circuit breaker rated current is large capcity breaker more than the 60A, and it is reliable inadequately that the impulsive force when using this pure electromagnetic leakage tripping device armature and discharging disconnects residual current circuit breaker by machine driving, and reason is the underpower of this release output.
Task of the present invention is to design a kind of without transistor amplifier circuit and circuit breaker rated current novel breaker irrelevant, that power output is enough big.Promptly by under the situation of electric current 〉=100A, when major loop in a single day the someone get an electric shock or electrical network when electric leakage occurring, can guarantee disconnection reliably.
The present invention is on the basis of existing electromagnetic-type leakage circuit breaker.On original leakage tripping device, arrange the switch of a normally open contact of forming by moving contact and fixed contact, add the new pattern creepage breaker that a shunt release that is used as power amplification is formed.
The drawing explanation:
Fig. 1 is a 100A residual current circuit breaker fundamental diagram, L-zero sequence current mutual inductor among the figure, J
1-1-be arranged in the normally opened contact switch on the leakage tripping device, J
2-shunt release, A
N-test button, R-test resistance, D
1～D
6Be rectifier diode, K-circuit breaker, J
1-leakage tripping device.
Fig. 2 is the leakage tripping device J that has the normally opened contact switch
1Structure principle chart, 21-tripping coil among the figure, 22-fixed contact, 23-moving contact, 24-armature back force bullet lid, 25-armature back force spring, 26-pedestal, 27-armature, 28-iron core, 29-permanent magnet, 210-lid, 211-sensitivity adjustment screw.
Fig. 3 is shunt release J
2Structure principle chart, 1-push rod among the figure, 2-armature, the 3-fixed core, the 4-coil, 5-is moving unshakable in one's determination, 6-reaction spring, 7-nut, 8-plectane, J
1-1-normally opened contact switch.
Be described in detail particular content of the present invention below in conjunction with accompanying drawing.
As everyone knows, existing electromagnetic leakage tripping device is made up of main elements such as permanent magnet, tripping coil, iron core, armature, reaction springs.When major loop had the people to get an electric shock or leaks electricity, the secondary of pure electromagnetic type zero sequence current mutual inductor (L) produced electric leakage signal, the same leakage tripping device (J of two terminated lines of this secondary
1) tripping coil (21) be connected, repeal by implication in the magnetic field that tripping coil (21) produces and the magnetic field of permanent magnet (29), in reaction spring (25) effect lower armature (27) action.As shown in Figure 2, the present invention is at leakage tripping device (J
1) armature (27) go up to arrange a moving contact (23), at 1.5-2.5mm place, moving contact (a 23) top layout fixed contact (22), both form one group of normally opened contact switch (J
1-1).During electric leakage, normally opened contact switch (J
1-1) closure.Or at leakage tripping device (J
1) go up and arrange that a sensitive switch replaces normally opened contact switch (J
1-1).
As shown in Figure 1, set shunt release (J
2) the two ends connection～380V power supply of coil (4), seal in the normally opened contact switch (J of a particular design in its circuit
1-1), in case getting an electric shock or leak electricity, appearance makes leakage tripping device action, then normally opened contact switch (J when major loop
1-1) closure, shunt release (J
2) electric and move, promote circuit breaker (K) and cut off the electricity supply, realize opening circuit.After shunt opening push rod (1) action, reset by reaction spring (6).
100A residual current circuit breaker of the present invention with existing pure electromagnetic-type leakage circuit breaker relatively has following advantage:
1, shunt release (J
2) action sensitivity irrelevant with the rated current by circuit breaker (K).During the major loop electric leakage, as long as leakage tripping device (J
1) move and impel normally opened contact switch (J
1-1) closure, then shunt release (J
2) coil (4) connections～380V power supply just, produces enough big magnetic field, assurance push rod (1) has enough big impulsive force promotion circuit breaker (K) to cut off the electricity supply.As long as adjust shunt release (J
2) operating power, even the scheme that adopts the design also can be disconnected reliably for the large capcity breaker (K) of hundreds of amperes of levels.
2, simple in structure, reliable in action.
3, drop to 75% o'clock of rated voltage at major loop three phase mains phase shortage or voltage, also can work reliably.
4, firm and durable, long service life.
With the electronic type residual current circuit breaker relatively, though electronic type is highly sensitive, because its electronic component is in the not only power consumption of long-term work state, limited its useful life simultaneously, damaged easily, circuit is complicated, and cost is higher.Embodiment:
According to the layout of Fig. 1, selecting the former limit of electromagnetic type zero sequence current mutual inductor (L) winding for use is 3 circles, and the secondary winding is 3 circles, and test resistance R is 3.3 kilohms, at leakage tripping device (J
1) 1.5～2mm place, moving contact (23) top layout fixed contact (22), form one group of normally opened contact switch (J
1-1), D
1, D
2, D
3, D
4, D
5, D
6All adopt the ZCZ silicon diode.Shunt release (J
2) structure such as Fig. 3, the line of coil (4) directly is the 0.06mm3600 circle, fixed core (3) is made with the A3 round steel, its external diameter is 7mm, highly be 14.5mm, it is identical with fixed core (3) with the size of making to move (5) unshakable in one's determination used material, is fixed on the push rod (1) by screw thread and nut M2.5, the long 37mm of push rod (1), actuating length 4-7mm, main circuit power voltage～380V is when leakage current reaches 30-200mA, circuit breaker (K) can move reliably, cuts off the electricity supply.
Claims (3)
1, a kind of residual current circuit breaker that is made of zero sequence current mutual inductor and leakage tripping device is characterized in that at leakage tripping device [J
1] go up and arrange a normally opened contact switch [J
1-1] and a shunt release [J that can play the power amplification effect is set
2].
2,, it is characterized in that normally opened contact switch (J according to the described residual current circuit breaker of claim 1
1-1) by with leakage tripping device (J
1) armature bracket be moving contact (3) and be arranged in a fixed contact (2) of putting 1.5～2.5mm place on the armature and form, also can be at leakage tripping device (J
1) go up and arrange that relies on a leakage tripping device (J
1) armature promote and the sensitive switch of action, substitute normally opened contact switch (J
1-1).
3, according to the described residual current circuit breaker of claim 1, its (J
2) shunt release is made up of push rod (1), plectane (8), armature (2), fixed core (3), coil (4), the moving iron core (5), reaction spring (6) and the nut (7) that are fixed on the push rod (1), it is characterized in that the power supply of coil (4) is directly provided by major loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86107664 CN86107664A (en) | 1986-11-04 | 1986-11-04 | The 100A multifunctional electric leakage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86107664 CN86107664A (en) | 1986-11-04 | 1986-11-04 | The 100A multifunctional electric leakage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86107664A true CN86107664A (en) | 1987-12-02 |
Family
ID=4803636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86107664 Pending CN86107664A (en) | 1986-11-04 | 1986-11-04 | The 100A multifunctional electric leakage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86107664A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425434B (en) * | 2008-12-17 | 2011-05-18 | 王则旺 | Shunt opening trip coil |
| CN107796974A (en) * | 2016-08-31 | 2018-03-13 | 施耐德电器工业公司 | Coil type sensor including its measurement apparatus, breaker and its winding method |
-
1986
- 1986-11-04 CN CN 86107664 patent/CN86107664A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425434B (en) * | 2008-12-17 | 2011-05-18 | 王则旺 | Shunt opening trip coil |
| CN107796974A (en) * | 2016-08-31 | 2018-03-13 | 施耐德电器工业公司 | Coil type sensor including its measurement apparatus, breaker and its winding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |