CN201726099U - Voltage deviation operated protector - Google Patents
Voltage deviation operated protector Download PDFInfo
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- CN201726099U CN201726099U CN2010201430714U CN201020143071U CN201726099U CN 201726099 U CN201726099 U CN 201726099U CN 2010201430714 U CN2010201430714 U CN 2010201430714U CN 201020143071 U CN201020143071 U CN 201020143071U CN 201726099 U CN201726099 U CN 201726099U
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Abstract
The utility model pertains to a low voltage electric appliance, mainly relates to an automatic shutdown and emergent protecting circuit device involving voltage deviation, and aims to solve the problem that a self-reset voltage deviation protector cannot coordinate with short circuit characteristics of breaker for protection function loss or open circuit caused by contact fusion welding or conglutination after long-term loading operation. The utility model consists of a rectifying circuit, a sampling circuit, a voltage regulator circuit, a controlling circuit, a misoperation preventing circuit, a switching circuit comprising a magnetic release coil TC, and a breaker, the rectifying circuit has two circuits, the utility model can solve the problem that a self-reset voltage deviation protector cannot coordinate with short circuit characteristics of breaker, the utility model is more reliable and with short circuit and overloading protecting function and also solve the unusual indication problem of supply voltage. Adopting a dipolar protector, the voltage deviation operated protector can break common wire under over voltage or under voltage, so the safety is further improved.
Description
Technical field
The utility model belongs to the low-voltage electrical apparatus class, mainly relates to the automatic disconnection emergency protective circuit device of voltage deviation.
Background technology
At present in low-voltage distribution system, the self-resetting type voltage deviation protector of installing and using in the uniline (or claimed, under voltage protection device), as Chinese patent CN1183664A, CN2497460Y etc., generally adopt voltage-type electromagnetic type relay or magnetic latching relay as actuator; But because the relay contact volume is little; contact pressure is less; make a little less than contact loaded current ability and the fault withstandability; in long-term run with load; because of circuit overload; fault current and various load be starting current repeatedly; make the contact of protector that melting welding takes place too early easily; adhesion phenomenon; especially apart from the protector of installing in the near more circuit of supply transformer load-side; even phenomenon " is blown " in the generation contact; thereby protector loses defencive function or line broken circuit can not be powered; so can not reach the short circuit characteristic requirement of cooperation mutually with circuit breaker; and self-resetting type voltage deviation protector is in mistake; only disconnect phase line during under voltage; and do not disconnect the neutral line, because of the circuit mistake; during under voltage often neutral line current potential also can raise, jeopardize personal safety.Simultaneously; self-resetting type voltage deviation protector automatically resets for guaranteeing; when design circuit; the stability of control circuit when essential default enough energy guarantee relay action message and action; thereby energy consumption is relatively large in long-time running, and its useful life is shortened in the circuit temperature rise; it cooperates installation with circuit breaker separately, and small product size, cost are also relatively large.
The application for a patent for invention that application number 200910113493.9, name are called " voltage deviation action protecting device " provides a kind of technical scheme that addresses the above problem.The utility model provides another kind of technical scheme.
Summary of the invention
In order to overcome above deficiency; the utility model provides another kind of voltage deviation action protecting device; can solve self-resetting type voltage deviation protector behind long-term run with load; because of contact melting welding, adhesion lose defencive function or open circuit; can not with the short circuit characteristic of the circuit breaker problem of cooperation mutually, and whether supply voltage normally indicates problem.
The technical scheme that its technical problem that solves the utility model adopts has five, all adopts the two-way rectification circuit, is respectively:
A kind of voltage deviation action protecting device, comprise rectification circuit 1, sample circuit 2, voltage stabilizing circuit 3, control circuit 4, faulty action preventing circuit 5 and comprise switching circuit 6, the circuit breaker of magnetictrip coil TC, the voltage sampling end of sample circuit 2 connects the input of control circuit 4, the output of voltage stabilizing circuit 3 connects the power input of control circuit 4, the output of control circuit 4 connects the input of faulty action preventing circuit 5, and the output of faulty action preventing circuit 5 connects the trigger end of switching circuit 6; Described sample circuit 2 is made of the end of an end series resistance R22 of resistance R 21, and intermediate node is the voltage sampling end, and the other end of resistance R 21 is the input of sample circuit 2; An end of resistance R 51 connects the output of control circuit 4 in the described faulty action preventing circuit 5, and the other end connects an end of capacitor C 51 and the trigger end of switching circuit 6; Described control circuit 4 comprised, under voltage control circuit 7 and being used to guarantees the reset control circuit 8 that circuit breaker normally resets and closes a floodgate, cross, under voltage control circuit 7 connects reset control circuits 8, it is characterized in that: rectification circuit 1 comprises first rectification circuit 10 and second rectification circuit 11; The full-wave rectifying circuit that described first rectification circuit 10 is made up of diode D11～D14, described second rectification circuit 11 is the half-wave rectifying circuits that are made of diode D15; The output of first rectification circuit 10 connects the input and the switching circuit 6 of voltage stabilizing circuit 3 simultaneously, the phase line input of first rectification circuit 10 connects the output of the two poles of the earth circuit breaker phase line utmost point L main contact, neutral line input connects the output or the input of the two poles of the earth circuit breaker neutral pole N main contact, the output of second rectification circuit 11 connects the input of sample circuit 2, and the input of second rectification circuit 11 connects the output or the input of the two poles of the earth circuit breaker phase line utmost point L main contact; The other end of resistance R 22 connects the ground end of first rectification circuit 10 in the described sample circuit 2; The other end of capacitor C 51 connects the ground end of first rectification circuit 10 in the described faulty action preventing circuit 5; Controllable silicon MCR or optocoupler silicon controlled anode are held with output and ground that negative electrode is connected first rectification circuit 10 respectively in the described switching circuit 6, magnetictrip coil TC is connected in the phase line incoming line of first rectification circuit 10, or is connected between the output and controllable silicon MCR or optocoupler silicon controlled anode of first rectification circuit 10.
A kind of voltage deviation action protecting device, comprise rectification circuit 1, sample circuit 2, voltage stabilizing circuit 3, control circuit 4, faulty action preventing circuit 5 and comprise switching circuit 6, the circuit breaker of magnetictrip coil TC, the voltage sampling end of sample circuit 2 connects the input of control circuit 4, the output of voltage stabilizing circuit 3 connects the power input of control circuit 4, the output of control circuit 4 connects the input of faulty action preventing circuit 5, and the output of faulty action preventing circuit 5 connects the trigger end of switching circuit 6; Described sample circuit 2 is made of the end of an end series resistance R22 of resistance R 21, and intermediate node is the voltage sampling end, and the other end of resistance R 21 is the input of sample circuit 2; An end of resistance R 51 connects the output of control circuit 4 in the described faulty action preventing circuit 5, and the other end connects an end of capacitor C 51 and the trigger end of switching circuit 6; Described control circuit 4 comprised, under voltage control circuit 7 and being used to guarantees the reset control circuit 8 that circuit breaker normally resets and closes a floodgate, cross, under voltage control circuit 7 connects reset control circuits 8, it is characterized in that: rectification circuit 1 comprises first rectification circuit 10 and second rectification circuit 11; The full-wave rectifying circuit that described first rectification circuit 10 is made up of diode D11～D14, described second rectification circuit 11 is the half-wave rectifying circuits that are made of diode D15; The output of first rectification circuit 10 connects the input of sample circuit 2 and the input of voltage stabilizing circuit 3 simultaneously, and second rectification circuit 11 connects the output of input connection the two poles of the earth circuit breaker phase line utmost point L main contact of switching circuit 6, the second rectification circuits 11; The other end of resistance R 22 connects the ground end of first rectification circuit 10 in the described sample circuit 2; The other end of capacitor C 51 connects the ground end of first rectification circuit 10 in the described faulty action preventing circuit 5; Controllable silicon MCR or optocoupler silicon controlled negative electrode connect the ground end of first rectification circuit 10 in the described switching circuit 6, and anode connects the output of second rectification circuit 11, magnetictrip coil TC is connected on any end of diode D15, and the anodal sensing end of the diode D15 of the series circuit of magnetictrip coil TC and diode D15 is the input of second rectification circuit 11.
A kind of voltage deviation action protecting device, comprise rectification circuit 1, sample circuit 2, voltage stabilizing circuit 3, control circuit 4, faulty action preventing circuit 5 and comprise switching circuit 6, the circuit breaker of magnetictrip coil TC, the voltage sampling end of sample circuit 2 connects the input of control circuit 4, the output of voltage stabilizing circuit 3 connects the power input of control circuit 4, the output of control circuit 4 connects the input of faulty action preventing circuit 5, and the output of faulty action preventing circuit 5 connects the trigger end of switching circuit 6; Described sample circuit 2 is made of the end of an end series resistance R22 of resistance R 21, and intermediate node is the voltage sampling end, and the other end of resistance R 21 is the input of sample circuit 2; An end of resistance R 51 connects the output of control circuit 4 in the described faulty action preventing circuit 5, and the other end connects an end of capacitor C 51 and the trigger end of switching circuit 6; Described control circuit 4 comprised, under voltage control circuit 7 and being used to guarantees the reset control circuit 8 that circuit breaker normally resets and closes a floodgate, cross, under voltage control circuit 7 connects reset control circuits 8, it is characterized in that: rectification circuit 1 comprises first rectification circuit 10 and second rectification circuit 11; The full-wave rectifying circuit that described first rectification circuit 10 is made up of diode D11～D14, described second rectification circuit 11 is the half-wave rectifying circuits that are made of diode D15; The output of first rectification circuit 10 connects the input of voltage stabilizing circuit 3, the input that the output of second rectification circuit 11 connects the input of sample circuit 2 and switching circuit 6, the second rectification circuits 11 simultaneously connects the output of the two poles of the earth circuit breaker phase line utmost point L main contact; The other end of resistance R 22 connects the ground end of first rectification circuit 10 in the described sample circuit 2; The other end of capacitor C 51 connects the ground end of first rectification circuit 10 in the described faulty action preventing circuit 5; Controllable silicon MCR or optocoupler silicon controlled negative electrode connect the ground end of first rectification circuit 10 in the described switching circuit 6, and anode connects the output of second rectification circuit 11, magnetictrip coil TC is connected on any end of diode D15, and the anodal sensing end of the diode D15 of the series circuit of magnetictrip coil TC and diode D15 is the input of second rectification circuit 11.
A kind of voltage deviation action protecting device, comprise rectification circuit 1, sample circuit 2, voltage stabilizing circuit 3, control circuit 4, faulty action preventing circuit 5 and comprise switching circuit 6, the circuit breaker of magnetictrip coil TC, the voltage sampling end of sample circuit 2 connects the input of control circuit 4, the output of voltage stabilizing circuit 3 connects the power input of control circuit 4, the output of control circuit 4 connects the input of faulty action preventing circuit 5, and the output of faulty action preventing circuit 5 connects the trigger end of switching circuit 6; Described sample circuit 2 is made of the end of an end series resistance R22 of resistance R 21, and intermediate node is the voltage sampling end, and the other end of resistance R 21 is the input of sample circuit 2; An end of resistance R 51 connects the output of control circuit 4 in the described faulty action preventing circuit 5, and the other end connects an end of capacitor C 51 and the trigger end of switching circuit 6; Described control circuit 4 comprised, under voltage control circuit 7 and being used to guarantees the reset control circuit 8 that circuit breaker normally resets and closes a floodgate, cross, under voltage control circuit 7 connects reset control circuits 8, it is characterized in that: rectification circuit 1 comprises first rectification circuit 10 and second rectification circuit 11; Full-wave rectifying circuit that the full-wave rectifying circuit that described first rectification circuit 10 is made up of diode D11～D14, described second rectification circuit 11 are made up of diode D16～D19 or the half-wave rectifying circuit that constitutes by diode; The output of first rectification circuit 10 connects the input of sample circuit 2 and the input of voltage stabilizing circuit 3 simultaneously, second rectification circuit 11 connects switching circuit 6, the phase line input of second rectification circuit 11 connects the output of the two poles of the earth circuit breaker phase line utmost point L main contact, and neutral line input connects the output or the input of the two poles of the earth circuit breaker neutral pole N main contact; The other end of resistance R 22 connects the ground end of first rectification circuit 10 in the described sample circuit 2; The other end of capacitor C 51 connects the ground end of first rectification circuit 10 in the described faulty action preventing circuit 5; The anode of optocoupler controllable silicon OM is held with output and ground that negative electrode is connected second rectification circuit 11 respectively in the described switching circuit 6, magnetictrip coil TC is connected in the phase line incoming line of second rectification circuit 11, or is connected between the anode of the output of second rectification circuit 11 and optocoupler controllable silicon OM.
Any voltage deviation action protecting device in above-mentioned four kinds, it is characterized in that: described controllable silicon MCR or optocoupler controllable silicon OM can be substituted by optocoupler triode OC, and the collector and emitter of optocoupler triode OC substitutes anode and the negative electrode of controllable silicon MCR or optocoupler controllable silicon OM respectively; The positive pole of the light-emitting diode of optocoupler triode OC signal source end substitutes the control utmost point of controllable silicon MCR, and the negative pole of light-emitting diode connects the ground end of first rectification circuit 10, or optocoupler triode OC signal source end substitutes the signal source end of optocoupler controllable silicon OM.
Any voltage deviation action protecting device in above-mentioned preceding four kinds; it is characterized in that: described controllable silicon MCR or optocoupler controllable silicon OM can be substituted by relay J 61 and the circuit that triode T61 forms; coil one end of relay J 61 is connected on the collector electrode of triode T61; the coil other end of relay J 61 and the emitter of triode T61 are connected to the output of voltage stabilizing circuit 3 and the ground end of first rectification circuit 10; normally opened contact two exits of relay J 61 substitute anode and the negative electrode of controllable silicon MCR or optocoupler controllable silicon OM arbitrarily; the base stage of triode T61 substitutes the control utmost point of controllable silicon MCR; or the positive pole of the light-emitting diode of alternative optocoupler controllable silicon OM signal source end, the negative pole of light-emitting diode connects the ground end of first rectification circuit 10.
A kind of voltage deviation action protecting device, comprise rectification circuit 1, sample circuit 2, voltage stabilizing circuit 3, control circuit 4, faulty action preventing circuit 5 and comprise switching circuit 6, the circuit breaker of magnetictrip coil TC, the voltage sampling end of sample circuit 2 connects the input of control circuit 4, the output of voltage stabilizing circuit 3 connects the power input of control circuit 4, the output of control circuit 4 connects the input of faulty action preventing circuit 5, and the output of faulty action preventing circuit 5 connects the trigger end of switching circuit 6; Described sample circuit 2 is made of the end of an end series resistance R22 of resistance R 21, and intermediate node is the voltage sampling end, and the other end of resistance R 21 is the input of sample circuit 2; An end of resistance R 51 connects the output of control circuit 4 in the described faulty action preventing circuit 5, and the other end connects an end of capacitor C 51 and the trigger end of switching circuit 6; Described control circuit 4 comprised, under voltage control circuit 7 and being used to guarantees the reset control circuit 8 that circuit breaker normally resets and closes a floodgate, cross, under voltage control circuit 7 connects reset control circuits 8, it is characterized in that: rectification circuit 1 comprises first rectification circuit 10 and second rectification circuit 11; The full-wave rectifying circuit that described first rectification circuit 10 is made up of diode D11～D14, described second rectification circuit 11 is the half-wave rectifying circuits that are made of diode D15; The output of first rectification circuit 10 connects the input of voltage stabilizing circuit 3, and the output of second rectification circuit 11 connects the input of sample circuit 2, and the input of second rectification circuit 11 connects the output or the input of the two poles of the earth circuit breaker phase line utmost point L main contact; The other end of resistance R 22 connects the ground end of first rectification circuit 10 in the described sample circuit 2; The other end of capacitor C 51 connects the ground end of first rectification circuit 10 in the described faulty action preventing circuit 5; Described switching circuit 6 is by electromagnetic trip coil TC, relay J 61 is formed with triode T61, coil one end of relay J 61 is connected on the collector electrode of triode T61, the coil other end of relay J 61 and the emitter of triode T61 are connected to the output of voltage stabilizing circuit 3 and the ground end of first rectification circuit 10, the base stage of triode T61 is a trigger end, the end of electromagnetic trip coil TC connects arbitrary exit of the normally opened contact of relay J 61, the other end of electromagnetic trip coil TC connects the output of the two poles of the earth circuit breaker phase line utmost point L main contact, and another exit of the normally opened contact of relay J 61 connects the output or the input of the two poles of the earth circuit breaker neutral pole N main contact.
Above-mentioned first, second, third and fourth, any voltage deviation action protecting device in seven kinds; it is characterized in that: described the two poles of the earth circuit breaker can be substituted by single-pole circuit breaker; single-pole circuit breaker substitutes the phase line utmost point L of the two poles of the earth circuit breaker, and all of rectification circuit 1 are connected in the neutral line input of the two poles of the earth circuit breaker neutral pole N main contact input or output and directly connect network neutral line PEN.
Above-mentioned second and third, four, any voltage deviation action protecting device in seven kind; it is characterized in that: the phase line input of first rectification circuit (10) connects the main contact input or the output of the phase line utmost point (L) of the two poles of the earth circuit breaker, and neutral line input connects the main contact input or the output of the neutral pole (N) of the two poles of the earth circuit breaker.A decompression capacitor C1 also can connect between the input of the phase line input of first rectification circuit (10) and the phase line utmost point (L) main contact of the two poles of the earth circuit breaker or output.
If the phase line input of first rectification circuit (10) connects the main contact input of the phase line utmost point (L) of the two poles of the earth circuit breaker, neutral line input connects the main contact input of the neutral pole (N) of the two poles of the earth circuit breaker, and the output of control circuit 4 also can connect the indicating circuit 9 that is used to indicate normal voltage and mistake, under voltage.
Described normal voltage indicating circuit is by resistance R 91, R92, triode T91, the series circuit of light-emitting diode D91 and resistance R 93 is formed, one end of resistance R 91 connects the power end of control circuit (4), the other end of resistance R 91 connects the collector electrode of triode T91, with the anodal end that points to of the diode D91 of the series circuit of diode D91 and resistance R 93, diode D91 points to the ground end that end is connected first rectification circuit 10 with the diode D91 negative pole of the series circuit of resistance R 93, resistance R 92 1 ends connect the output of control circuit (4), the other end of resistance R 92 connects the base stage of triode T91, and the emitter of triode T91 connects the ground end of first rectification circuit 10; Described mistake, under voltage indicating circuit are a light-emitting diode D92, diode D92 is connected on any end of the output below-center offset resistance R 77 of control circuit (4), and diode D92 points to the ground end that end is connected first rectification circuit 10 with the diode D92 negative pole of the series circuit of resistance R 77.
The beneficial effects of the utility model are, can solve self-resetting type voltage deviation protector can not with the short circuit characteristic of the circuit breaker problem of cooperation mutually, reliability is improved at all; Have that uniline generation power frequency is crossed, the function of protection circuit during under voltage; have short circuit, overload protection function concurrently; also solved supply voltage and whether indicated problem normally, and the two poles of the earth protector crossing, also can disconnect the neutral line during under voltage, security performance is further enhanced.
Description of drawings
Fig. 1 is the circuit block diagram of a kind of circuit arrangement of the present utility model
Fig. 2～Fig. 6 is a circuit embodiment of the present utility model
Fig. 7 is the embodiment that controllable silicon or optocoupler controllable silicon are substituted by the optocoupler triode
Fig. 8 is the embodiment that controllable silicon or optocoupler controllable silicon are substituted by relay, triode
Fig. 9 is the embodiment that single-pole circuit breaker substitutes the two poles of the earth circuit breaker
The 1-rectification circuit, the 2-sample circuit, the 3-voltage stabilizing circuit, the 4-control circuit, 5-faulty action preventing circuit, 6-switching circuit, 7-are crossed, the under voltage control circuit, 8-reset control circuit, 9-indicating circuit, 10-first rectification circuit, 11-second rectification circuit
TC-electromagnetic trip coil, MCR-controllable silicon, OM-optocoupler controllable silicon, OC-optocoupler triode, J61-relay
Embodiment
Below in conjunction with the description of drawings embodiment.
Among Fig. 2, first rectification circuit 10 is made up of diode D11, D12, D13, D14, and second rectification circuit 11 constitutes half-wave rectifying circuit by diode D15.The output of first rectification circuit 10 connects by resistance R 31, R32, voltage stabilizing didoe D31, D32, the voltage stabilizing circuit 3 that diode D33 forms, the output of first rectification circuit 10 also connects the switching circuit of being made up of controllable silicon MCR and electromagnetic trip coil TC 6, the phase line input of first rectification circuit 10 connects the output of the two poles of the earth circuit breaker phase line utmost point L main contact, neutral line input connects the output of the two poles of the earth circuit breaker neutral pole N main contact, second rectification circuit, 11 diode D15 outputs connect by resistance R 21, R22, the sample circuit 2 that capacitor C 21 is formed, resistance R 21 series resistance R22 in the sample circuit 2, one end of resistance R 22 is connected the ground end of first rectification circuit 10, the input of second rectification circuit 11 connects the output of the two poles of the earth circuit breaker phase line utmost point L main contact, also can be connected output.An end of capacitor C 51 is connected the ground end of first rectification circuit 10 in the faulty action preventing circuit 5.The anode of controllable silicon MCR and negative electrode are connected to the output and the ground end of first rectification circuit 10 in the switching circuit 6, and magnetictrip coil TC is connected in the phase line incoming line of first rectification circuit 10.
Fig. 2,3,4, all circuit of 5, controllable silicon MCR or optocoupler controllable silicon OM can be substituted by optocoupler triode OC, are example with Fig. 2, see Fig. 7 after substituting, and the collector and emitter of optocoupler triode OC substitutes anode and the negative electrode of controllable silicon MCR respectively; The positive pole of the light-emitting diode of optocoupler triode OC signal source end substitutes the control utmost point of controllable silicon MCR, and the negative pole of light-emitting diode connects the negative pole of first rectification circuit 10.
Fig. 2,3,4, all circuit of 5, controllable silicon MCR or optocoupler controllable silicon OM also can be substituted by relay J 61 and the circuit that triode T61 forms, with Fig. 3 is example, see Fig. 8 after substituting, coil one end of relay J 61 is connected on the collector electrode of triode T61, the coil other end of relay J 61 and the emitter of triode T61 are connected to the output of voltage stabilizing circuit 3 and the ground end of first rectification circuit 10, the fixed contact exit of the normally opened contact of relay J 61 substitutes the anode of controllable silicon MCR, the moving contact exit substitutes the negative electrode of controllable silicon MCR, and the base stage of triode T61 substitutes the control utmost point of controllable silicon MCR.
Fig. 2,3,4, all circuit of 5, the two poles of the earth circuit breaker can be substituted by single-pole circuit breaker, with Fig. 5 is example, see Fig. 9 after substituting, single-pole circuit breaker substitutes the phase line utmost point L of the two poles of the earth circuit breaker, and all of rectification circuit 1 are connected in the neutral line input of the two poles of the earth circuit breaker neutral pole N main contact input or output and directly connect network neutral line PEN.
Fig. 3,4,5, all circuit of 6, the phase line input of first rectification circuit 10 connects main contact input or the output of the phase line utmost point L of the two poles of the earth circuit breaker, and neutral line input connects main contact input or the output of the neutral pole N of the two poles of the earth circuit breaker.A decompression capacitor C1 also can connect between the input of the phase line input of first rectification circuit 10 and the phase line utmost point L main contact of the two poles of the earth circuit breaker or output.
Fig. 3,4,5,6,8, all circuit of 9, the phase line input of first rectification circuit 10 connects the main contact input of the phase line utmost point L of the two poles of the earth circuit breaker, neutral line input connects the main contact input of the neutral pole N of the two poles of the earth circuit breaker, and the output of control circuit 4 also can connect normal voltage and cross, the indicating circuit 9 of under voltage.The normal voltage indicating circuit is by resistance R 91, R92, triode T91, the series circuit of light-emitting diode D91 and resistance R 93 is formed, one end of resistance R 91 connects the power end of control circuit 4, the other end of resistance R 91 connects the collector electrode of triode T91, with the anodal end that points to of the diode D91 of the series circuit of diode D91 and resistance R 93, diode D91 points to the ground end that end is connected first rectification circuit 10 with the diode D91 negative pole of the series circuit of resistance R 93, resistance R 92 1 ends connect the output of control circuit 4, the other end of resistance R 92 connects the base stage of triode T91, and the emitter of triode T91 connects the ground end of first rectification circuit 10; Described mistake, under voltage indicating circuit are a light-emitting diode D92, diode D92 is connected on any end of the output below-center offset resistance R 77 of control circuit (4), and diode D92 points to the ground end that end is connected first rectification circuit 10 with the diode D92 negative pole of the series circuit of resistance R 77.
More than in all circuit arrangements, the phase line input of every circuit that is connected with the switching circuit 6 that comprises electromagnetic trip coil TC all is connected the output of circuit breaker phase line utmost point L main contact, mainly is because electromagnetic trip coil TC onlinely passes by, big current work in the time of can not growing during under voltage.And the input of first rectification circuit 10 can be connected the input of circuit breaker main contact or the circuit of output, when the input of first rectification circuit 10 is connected the input of circuit breaker main contact, as long as voltage stabilizing circuit 3 is online to be passed by, enough reliabilities are arranged during under voltage (as, current-limiting resistor voltage divider R31 selects suitable withstand voltage and resistance, or at the phase line input of first rectification circuit 10 series connection decompression capacitor C1), can in control circuit 4, increase indicating circuit.
Connection combination by such scheme; the circuit of each scheme can both control that circuit breaker is crossed in circuit generation power frequency, action protection during under voltage; because of the reliable contact performance of circuit breaker; thereby solved self-resetting type voltage deviation protector can not with the short circuit characteristic of the circuit breaker problem of cooperation mutually; behind long-term run with load; the phenomenon of defencive function or outage also can not take place to lose because of contact melting welding, adhesion, and reliability is improved at all.In addition, this product is installed in distribution line and also can be saved the circuit breaker that install separately at the house lead in place.
Claims (12)
1. voltage deviation action protecting device, comprise rectification circuit (1), sample circuit (2), voltage stabilizing circuit (3), control circuit (4), faulty action preventing circuit (5) and comprise switching circuit (6), the circuit breaker of magnetictrip coil TC, the voltage sampling end of sample circuit (2) connects the input of control circuit (4), the output of voltage stabilizing circuit (3) connects the power input of control circuit (4), the output of control circuit (4) connects the input of faulty action preventing circuit (5), and the output of faulty action preventing circuit (5) connects the trigger end of switching circuit (6); Described sample circuit (2) is made of the end of an end series resistance R22 of resistance R 21, and intermediate node is the voltage sampling end, and the other end of resistance R 21 is the input of sample circuit (2); An end of resistance R 51 connects the output of control circuit (4) in the described faulty action preventing circuit (5), and the other end connects an end of capacitor C 51 and the trigger end of switching circuit (6); Described control circuit (4) comprised, under voltage control circuit (7) and being used to guarantees the reset control circuit (8) that circuit breaker normally resets and closes a floodgate, cross, under voltage control circuit (7) connects reset control circuit (8), it is characterized in that: rectification circuit (1) comprises first rectification circuit (10) and second rectification circuit (11); The full-wave rectifying circuit that described first rectification circuit (10) is made up of diode D11～D14, described second rectification circuit (11) is the half-wave rectifying circuit that is made of diode D15; The output of first rectification circuit (10) connects the input and the switching circuit (6) of voltage stabilizing circuit (3) simultaneously, the phase line input of first rectification circuit (10) connects the output of the two poles of the earth circuit breaker phase line utmost points (L) main contact, neutral line input connects the output or the input of the two poles of the earth circuit breaker neutral poles (N) main contact, the output of second rectification circuit (11) connects the input of sample circuit (2), and the input of second rectification circuit (11) connects the output or the input of the two poles of the earth circuit breaker phase line utmost points (L) main contact; The other end of resistance R 22 connects the ground end of first rectification circuit (10) in the described sample circuit (2); The other end of capacitor C 51 connects the ground end of first rectification circuit (10) in the described faulty action preventing circuit (5); Controllable silicon MCR or optocoupler silicon controlled anode are held with output and ground that negative electrode is connected first rectification circuit (10) respectively in the described switching circuit (6), magnetictrip coil TC is connected in the phase line incoming line of first rectification circuit (10), or is connected between the output and controllable silicon MCR or optocoupler silicon controlled anode of first rectification circuit (10).
2. voltage deviation action protecting device, comprise rectification circuit (1), sample circuit (2), voltage stabilizing circuit (3), control circuit (4), faulty action preventing circuit (5) and comprise switching circuit (6), the circuit breaker of magnetictrip coil TC, the voltage sampling end of sample circuit (2) connects the input of control circuit (4), the output of voltage stabilizing circuit (3) connects the power input of control circuit (4), the output of control circuit (4) connects the input of faulty action preventing circuit (5), and the output of faulty action preventing circuit (5) connects the trigger end of switching circuit (6); Described sample circuit (2) is made of the end of an end series resistance R22 of resistance R 21, and intermediate node is the voltage sampling end, and the other end of resistance R 21 is the input of sample circuit (2); An end of resistance R 51 connects the output of control circuit (4) in the described faulty action preventing circuit (5), and the other end connects an end of capacitor C 51 and the trigger end of switching circuit (6); Described control circuit (4) comprised, under voltage control circuit (7) and being used to guarantees the reset control circuit (8) that circuit breaker normally resets and closes a floodgate, cross, under voltage control circuit (7) connects reset control circuit (8), it is characterized in that: rectification circuit (1) comprises first rectification circuit (10) and second rectification circuit (11); The full-wave rectifying circuit that described first rectification circuit (10) is made up of diode D11～D14, described second rectification circuit (11) is the half-wave rectifying circuit that is made of diode D15; The output of first rectification circuit (10) connects the input of sample circuit (2) and the input of voltage stabilizing circuit (3) simultaneously, second rectification circuit (11) connects switching circuit (6), and the input of second rectification circuit (11) connects the output of the two poles of the earth circuit breaker phase line utmost points (L) main contact; The other end of resistance R 22 connects the ground end of first rectification circuit (10) in the described sample circuit (2); The other end of capacitor C 51 connects the ground end of first rectification circuit (10) in the described faulty action preventing circuit (5); Controllable silicon MCR or optocoupler silicon controlled negative electrode connect the ground end of first rectification circuit (10) in the described switching circuit (6), and anode connects the output of second rectification circuit (11), magnetictrip coil TC is connected on any end of diode D15, and the anodal sensing end of the diode D15 of the series circuit of magnetictrip coil TC and diode D15 is the input of second rectification circuit (11).
3. voltage deviation action protecting device, comprise rectification circuit (1), sample circuit (2), voltage stabilizing circuit (3), control circuit (4), faulty action preventing circuit (5) and comprise switching circuit (6), the circuit breaker of magnetictrip coil TC, the voltage sampling end of sample circuit (2) connects the input of control circuit (4), the output of voltage stabilizing circuit (3) connects the power input of control circuit (4), the output of control circuit (4) connects the input of faulty action preventing circuit (5), and the output of faulty action preventing circuit (5) connects the trigger end of switching circuit (6); Described sample circuit (2) is made of the end of an end series resistance R22 of resistance R 21, and intermediate node is the voltage sampling end, and the other end of resistance R 21 is the input of sample circuit (2); An end of resistance R 51 connects the output of control circuit (4) in the described faulty action preventing circuit (5), and the other end connects an end of capacitor C 51 and the trigger end of switching circuit (6); Described control circuit (4) comprised, under voltage control circuit (7) and being used to guarantees the reset control circuit (8) that circuit breaker normally resets and closes a floodgate, cross, under voltage control circuit (7) connects reset control circuit (8), it is characterized in that: rectification circuit (1) comprises first rectification circuit (10) and second rectification circuit (11); The full-wave rectifying circuit that described first rectification circuit (10) is made up of diode D11～D14, described second rectification circuit (11) is the half-wave rectifying circuit that is made of diode D15; The output of first rectification circuit (10) connects the input of voltage stabilizing circuit (3), the output of second rectification circuit (11) connects the input and the switching circuit (6) of sample circuit (2) simultaneously, and the input of second rectification circuit (11) connects the output of the two poles of the earth circuit breaker phase line utmost points (L) main contact; The other end of resistance R 22 connects the ground end of first rectification circuit (10) in the described sample circuit (2); The other end of capacitor C 51 connects the ground end of first rectification circuit (10) in the described faulty action preventing circuit (5); Controllable silicon MCR or optocoupler silicon controlled negative electrode connect the ground end of first rectification circuit (10) in the described switching circuit (6), and anode connects the output of second rectification circuit (11), magnetictrip coil TC is connected on any end of diode D15, and the anodal sensing end of the diode D15 of the series circuit of magnetictrip coil TC and diode D15 is the input of second rectification circuit (11).
4. voltage deviation action protecting device, comprise rectification circuit (1), sample circuit (2), voltage stabilizing circuit (3), control circuit (4), faulty action preventing circuit (5) and comprise switching circuit (6), the circuit breaker of magnetictrip coil TC, the voltage sampling end of sample circuit (2) connects the input of control circuit (4), the output of voltage stabilizing circuit (3) connects the power input of control circuit (4), the output of control circuit (4) connects the input of faulty action preventing circuit (5), and the output of faulty action preventing circuit (5) connects the trigger end of switching circuit (6); Described sample circuit (2) is made of the end of an end series resistance R22 of resistance R 21, and intermediate node is the voltage sampling end, and the other end of resistance R 21 is the input of sample circuit (2); An end of resistance R 51 connects the output of control circuit (4) in the described faulty action preventing circuit (5), and the other end connects an end of capacitor C 51 and the trigger end of switching circuit (6); Described control circuit (4) comprised, under voltage control circuit (7) and being used to guarantees the reset control circuit (8) that circuit breaker normally resets and closes a floodgate, cross, under voltage control circuit (7) connects reset control circuit (8), it is characterized in that: rectification circuit (1) comprises first rectification circuit (10) and second rectification circuit (11); Full-wave rectifying circuit that the full-wave rectifying circuit that described first rectification circuit (10) is made up of diode D11～D14, described second rectification circuit (11) are made up of diode D16～D19 or the half-wave rectifying circuit that constitutes by diode; The output of first rectification circuit (10) connects the input of sample circuit (2) and the input of voltage stabilizing circuit (3) simultaneously, second rectification circuit (11) connects switching circuit (6), the phase line input of second rectification circuit (11) connects the output of the two poles of the earth circuit breaker phase line utmost points (L) main contact, and neutral line input connects the output or the input of the two poles of the earth circuit breaker neutral poles (N) main contact; The other end of resistance R 22 connects the ground end of first rectification circuit (10) in the described sample circuit (2); The other end of capacitor C 51 connects the ground end of first rectification circuit (10) in the described faulty action preventing circuit (5); The anode of optocoupler controllable silicon OM is held with output and ground that negative electrode is connected second rectification circuit (11) respectively in the described switching circuit (6), magnetictrip coil TC is connected in the phase line incoming line of second rectification circuit (11), or is connected between the anode of the output of second rectification circuit (11) and optocoupler controllable silicon OM.
5. according to claim 1,2,3,4 described any voltage deviation action protecting devices, it is characterized in that: described controllable silicon MCR or optocoupler controllable silicon OM can be substituted by optocoupler triode OC, and the collector and emitter of optocoupler triode OC substitutes anode and the negative electrode of controllable silicon MCR or optocoupler controllable silicon OM respectively; The positive pole of the light-emitting diode of optocoupler triode OC signal source end substitutes the control utmost point of controllable silicon MCR, and the negative pole of light-emitting diode connects the ground end of first rectification circuit (10), or optocoupler triode OC signal source end substitutes the signal source end of optocoupler controllable silicon OM.
6. according to claim 1; 2; 3; 4 described any voltage deviation action protecting devices; it is characterized in that: described controllable silicon MCR or optocoupler controllable silicon OM can be substituted by relay J 61 and the circuit that triode T61 forms; coil one end of relay J 61 is connected on the collector electrode of triode T61; the coil other end of relay J 61 and the emitter of triode T61 are connected to the output of voltage stabilizing circuit (3) and the ground end of first rectification circuit (10); normally opened contact two exits of relay J 61 substitute anode and the negative electrode of controllable silicon MCR or optocoupler controllable silicon OM arbitrarily; the base stage of triode T61 substitutes the control utmost point of controllable silicon MCR; or the positive pole of the light-emitting diode of alternative optocoupler controllable silicon OM signal source end, the negative pole of light-emitting diode connects the ground end of first rectification circuit (10).
7. voltage deviation action protecting device, comprise rectification circuit (1), sample circuit (2), voltage stabilizing circuit (3), control circuit (4), faulty action preventing circuit (5) and comprise switching circuit (6), the circuit breaker of magnetictrip coil TC, the voltage sampling end of sample circuit (2) connects the input of control circuit (4), the output of voltage stabilizing circuit (3) connects the power input of control circuit (4), the output of control circuit (4) connects the input of faulty action preventing circuit (5), and the output of faulty action preventing circuit (5) connects the trigger end of switching circuit (6); Described sample circuit (2) is made of the end of an end series resistance R22 of resistance R 21, and intermediate node is the voltage sampling end, and the other end of resistance R 21 is the input of sample circuit (2); An end of resistance R 51 connects the output of control circuit (4) in the described faulty action preventing circuit (5), and the other end connects an end of capacitor C 51 and the trigger end of switching circuit (6); Described control circuit (4) comprised, under voltage control circuit (7) and being used to guarantees the reset control circuit (8) that circuit breaker normally resets and closes a floodgate, cross, under voltage control circuit (7) connects reset control circuit (8), it is characterized in that: rectification circuit (1) comprises first rectification circuit (10) and second rectification circuit (11); The full-wave rectifying circuit that described first rectification circuit (10) is made up of diode D11～D14, described second rectification circuit (11) is the half-wave rectifying circuit that is made of diode D15; The output of first rectification circuit (10) connects the input of voltage stabilizing circuit (3), the output of second rectification circuit (11) connects the input of sample circuit (2), and the input of second rectification circuit (11) connects the output or the input of the two poles of the earth circuit breaker phase line utmost points (L) main contact; The other end of resistance R 22 connects the ground end of first rectification circuit (10) in the described sample circuit (2); The other end of capacitor C 51 connects the ground end of first rectification circuit (10) in the described faulty action preventing circuit (5); Described switching circuit (6) is by electromagnetic trip coil TC, relay J 61 is formed with triode T61, coil one end of relay J 61 is connected on the collector electrode of triode T61, the coil other end of relay J 61 and the emitter of triode T61 are connected to the output of voltage stabilizing circuit (3) and the ground end of first rectification circuit (10), the base stage of triode T61 is a trigger end, the end of electromagnetic trip coil TC connects arbitrary exit of the normally opened contact of relay J 61, the other end of electromagnetic trip coil TC connects the output of the two poles of the earth circuit breaker phase line utmost points (L) main contact, and another exit of the normally opened contact of relay J 61 connects the output or the input of the two poles of the earth circuit breaker neutral poles (N) main contact.
8. according to claim 1,2,3,4,7 described any voltage deviation action protecting devices; it is characterized in that: described the two poles of the earth circuit breaker can be substituted by single-pole circuit breaker; single-pole circuit breaker substitutes the phase line utmost point (L) of the two poles of the earth circuit breaker, and all of rectification circuit (1) are connected in the neutral line input of the two poles of the earth circuit breaker neutral poles (N) main contact input or output and directly connect network neutral line (PEN).
9. according to claim 2,3,4,7 described any voltage deviation action protecting devices; it is characterized in that: the phase line input of described first rectification circuit (10) connects the main contact input or the output of the phase line utmost point (L) of the two poles of the earth circuit breaker, and neutral line input connects the main contact input or the output of the neutral pole (N) of the two poles of the earth circuit breaker.
10. any voltage deviation action protecting device according to claim 9 is characterized in that: a decompression capacitor C1 also can connect between the input of the phase line input of described first rectification circuit and the phase line utmost point (L) main contact of the two poles of the earth circuit breaker or output.
11. a kind of voltage deviation action protecting device according to claim 9; it is characterized in that: the phase line input of described first rectification circuit (10) connects the main contact input of the phase line utmost point (L) of the two poles of the earth circuit breaker; neutral line input connects the main contact input of the neutral pole (N) of the two poles of the earth circuit breaker, and the output of control circuit (4) also can connect normal voltage and cross, the indicating circuit (9) of under voltage.
12. a kind of voltage deviation action protecting device according to claim 11, it is characterized in that, described normal voltage indicating circuit is by resistance R 91, R92, triode T91, the series circuit of light-emitting diode D91 and resistance R 93 is formed, one end of resistance R 91 connects the power end of control circuit (4), the other end of resistance R 91 connects the collector electrode of triode T91, with the anodal end that points to of the diode D91 of the series circuit of diode D91 and resistance R 93, diode D91 points to the ground end that end is connected first rectification circuit (10) with the diode D91 negative pole of the series circuit of resistance R 93, resistance R 92 1 ends connect the output of control circuit (4), the other end of resistance R 92 connects the base stage of triode T91, and the emitter of triode T91 connects the ground end of first rectification circuit (10); Described mistake, under voltage indicating circuit are a light-emitting diode D92, diode D92 is connected on any end of the output below-center offset resistance R 77 of control circuit (4), and diode D92 points to the ground end that end is connected first rectification circuit (10) with the diode D92 negative pole of the series circuit of resistance R 77.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201430714U CN201726099U (en) | 2010-03-29 | 2010-03-29 | Voltage deviation operated protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201430714U CN201726099U (en) | 2010-03-29 | 2010-03-29 | Voltage deviation operated protector |
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| Publication Number | Publication Date |
|---|---|
| CN201726099U true CN201726099U (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201430714U Expired - Fee Related CN201726099U (en) | 2010-03-29 | 2010-03-29 | Voltage deviation operated protector |
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| CN (1) | CN201726099U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199392A (en) * | 2013-04-10 | 2013-07-10 | 卫斌鹏 | Alternating current socket with overvoltage protection |
| CN104505306A (en) * | 2014-12-19 | 2015-04-08 | 贵州振华群英电器有限公司（国营第八九一厂） | Hybrid relay with over-voltage and under-voltage protection functions |
-
2010
- 2010-03-29 CN CN2010201430714U patent/CN201726099U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199392A (en) * | 2013-04-10 | 2013-07-10 | 卫斌鹏 | Alternating current socket with overvoltage protection |
| CN103199392B (en) * | 2013-04-10 | 2015-08-26 | 卫斌鹏 | There is the AC socket of overvoltage protection |
| CN104505306A (en) * | 2014-12-19 | 2015-04-08 | 贵州振华群英电器有限公司（国营第八九一厂） | Hybrid relay with over-voltage and under-voltage protection functions |
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