Low-power consumption non-electric quantity reactivation circuit with anti-jump

Abstract

The application relates to a low-power-consumption non-electricity heavy dynamic circuit with anti-jump, which comprises a tripping signal action circuit, a tripping signal reset circuit and an anti-jump circuit. The tripping signal action circuit comprises a voltage dividing resistor, a rectifier diode, a circuit breaker relay, an RC delay circuit, a triode, a tripping outlet relay and a tripping holding relay. The tripping signal reset circuit comprises a voltage dividing resistor, a rectifier diode, a circuit breaker relay, an RC delay circuit, a triode, a tripping outlet relay and a reset holding relay. The anti-jump circuit comprises a voltage dividing resistor, a rectifier diode and an anti-jump relay. The application avoids repeated action of the tripping outlet when the action signal and the reset signal exist simultaneously, and reduces the failure rate.

Description

TECHNICAL FIELD

[0001] The present application relates to electrical engineering measuring device, especially to a low-power non-electricity heavy dynamic circuit with anti-jump. BACKGROUND

[0002] The main transformer, electric reactance and the like running in industrial field generally require to be equipped with non-electricity protection such as gas protection, pressure release, over-temperature protection and the like. The non-electricity protection is mostly installed outdoors, and the cable is easily damped in rainy weather, the insulation is reduced, the cable grounding is caused, the loop input voltage reaches 50% of the rated DC power voltage, and the protection misoperation is caused. In addition, the AC line is misconnected into the loop due to the operation error of the construction personnel on site, and the misoperation is also caused. The protection misoperation can cause large-area power failure, and the state suffers unnecessary loss. According to the relay protection professional key implementation requirements of the State Grid Corporation of China No. 222 "Eighteen Major Anti-accident Measures of the State Grid" (trial implementation) organized and formulated by the National Power Dispatching and Communication Center, all important loops involving direct tripping should use intermediate relays with action voltage within 55% to 70% of the rated DC power voltage, and the action power is required to be not less than 5W. The North China Grid also requires that the rated action time of the loop is less than 20ms, and the 220V AC voltage is not acted.

[0003] The existing non-electricity heavy dynamic device in the market has the problems of high power consumption, serious heating, repeated tripping of the tripping outlet when the action signal and the reset signal exist at the same time, and the device is easy to fail under such working conditions. SUMMARY

[0004] The present application aims to overcome the above-mentioned deficiencies, and provides a low-power non-electricity heavy dynamic circuit with anti-jump, which avoids repeated tripping of the tripping outlet when the action signal and the reset signal exist at the same time, and reduces the failure rate.

[0005] The purpose of the present application is achieved as follows:

[0006] The application discloses a low-power trip signal action circuit with anti-jump function, which comprises a trip signal action circuit, a trip signal reset circuit and an anti-jump circuit, wherein the trip signal action circuit comprises a voltage dividing resistor, a rectifier diode, a circuit breaker relay, an RC delay circuit, a triode, a trip outlet relay and a trip holding relay, the trip signal reset circuit comprises a voltage dividing resistor, a rectifier diode, a circuit breaker relay, an RC delay circuit, a triode, a trip outlet relay and a reset holding relay, and the anti-jump circuit comprises a voltage dividing resistor, a rectifier diode and an anti-jump relay; the circuit breaker relay, the trip outlet relay and the trip holding relay in the trip signal action circuit are connected in parallel, the circuit breaker relay, the trip outlet relay and the reset holding relay in the trip signal reset circuit are connected in parallel, and the anti-jump relay, the rectifier diode and a filter capacitor in the anti-jump circuit are connected in parallel, and the voltage dividing resistor is connected in series with the coils of the relays.

[0007] Each of the circuit breaker relays is connected with a triode, a capacitor, a diode and a resistor to form an RC delay circuit, and the trip outlet relay, the trip holding relay and the reset holding relay are respectively connected with a freewheeling diode and a filter capacitor in parallel.

[0008] Further, in the trip signal action circuit, the circuit breaker relay DLJ1A, the triode Q1, the capacitor C4 and the resistor R2 form a circuit breaker relay delay action circuit, the emitter of the triode Q1 is connected with the circuit breaker relay DLJ1A, the base of the triode Q1 is connected with the negative electrode of the freewheeling diode D39, the positive electrode of the freewheeling diode D39 is connected with the circuit breaker relay DLJ1A, the collector of the triode Q1 is connected with the resistor R2 and the capacitor C4, and the freewheeling diode D3 is connected with the circuit breaker relay DLJ1A in parallel.

[0009] Further, in the trip signal action circuit, the rectifier diode D1 and the rectifier diode D2 are connected in series and are respectively connected with the circuit breaker relay DLJ1A, the trip outlet relay K1A, the trip outlet relay K2A, the trip outlet relay K3A and the trip holding relay TBJ1A in parallel, the TVS tube D6 is connected with the circuit breaker relay DLJ1A, the trip outlet relay K1A, the trip outlet relay K2A, the trip outlet relay K3A and the trip holding relay TBJ1A in parallel, the rectifier diode D8 and the rectifier diode D37 are connected in series and are respectively connected with the circuit breaker relay DLJ1A, the trip outlet relay K1A, the trip outlet relay K2A, the trip outlet relay K3A and the trip holding relay TBJ1A in parallel.

[0010] Further, in the trip signal reset circuit, the circuit breaker relay DLJ1B, the transistor Q2, the capacitor C10 and the resistor R4 form a circuit breaker relay delay action circuit, the emitter of the transistor Q2 is connected to the circuit breaker relay DLJ1B, the base of the transistor Q2 is connected to the negative electrode of the freewheeling diode D17, the positive electrode of the freewheeling diode D17 is connected to the circuit breaker relay DLJ1B, the collector of the transistor Q2 is connected to the resistor R4 and the capacitor C10, and the freewheeling diode D12 is connected in parallel with the circuit breaker relay DLJ1B.

[0011] Further, in the trip signal reset circuit, the rectifier diode D29 and the rectifier diode D31 are connected in series and then connected in parallel with the circuit breaker relay DLJ1B, the trip outlet relay K1B, the trip outlet relay K2B, the trip outlet relay K3B and the reset holding relay FBJ1A respectively, the TVS tube D11 is connected in parallel with the circuit breaker relay DLJ1B, the trip outlet relay K1B, the trip outlet relay K2B, the trip outlet relay K3B and the reset holding relay FBJ1A, the rectifier diode D7 and the rectifier diode D19 are connected in series and then connected in parallel with the circuit breaker relay DLJ1B, the trip outlet relay K1B, the trip outlet relay K2B, the trip outlet relay K3B and the reset holding relay FBJ1A respectively.

[0012] Further, in the anti-trip circuit, the anti-trip relay FTJ1A is connected in parallel with the freewheeling diode D24 and the filter capacitor C11 respectively, the rectifier diode D21 and the rectifier diode D43 are connected in series and then connected in parallel with the anti-trip relay FTJ1A, and the rectifier diode D34 and the rectifier diode D35 are connected in series and then connected in parallel with the anti-trip relay FTJ1A.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] The present application includes a trip signal action circuit, a trip signal reset circuit and an anti-trip circuit, the trip signal action circuit includes a voltage dividing resistor, a rectifier diode, a circuit breaker relay, an RC delay circuit, a transistor, a trip outlet relay and a trip holding relay, the trip signal reset circuit includes a voltage dividing resistor, a rectifier diode, a circuit breaker relay, an RC delay circuit, a transistor, a trip outlet relay and a reset holding relay, and the anti-trip circuit includes a voltage dividing resistor, a rectifier diode and an anti-trip relay. The present application ensures that the starting time of the trip outlet relay in the circuit, the action voltage of the trip outlet circuit and the starting power of the trip outlet circuit all meet the relevant regulations of non-electric quantity driving devices, the present application has lower function, smaller heat generation, the trip outlet will not repeatedly act when the action signal and the reset signal exist at the same time, and thus has lower failure rate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The present application is a circuit general block diagram.

[0016] Figure 2 Circuit block diagram of the trip signal action circuit of the present application.

[0017] Figure 3 Circuit schematic diagram of the trip signal action circuit of the present application.

[0018] Figure 4 Circuit block diagram of the trip signal reset circuit of the present application.

[0019] Figure 5 Circuit schematic diagram of the trip signal reset circuit of the present application.

[0020] Figure 6 Circuit schematic diagram of the anti-trip circuit of the present application. Figure 5 Partial enlarged view of the anti-trip circuit of the present application.

[0021] Figure 7 Circuit schematic diagram of the anti-trip circuit of the present application. DETAILED DESCRIPTION

[0022] In order to better understand the technical solutions of the present application, the following will be described in detail in combination with relevant drawings. It should be understood that the following specific examples are not intended to limit the specific implementation manners of the technical solutions of the present application, and are only implementation manners that can be adopted by the technical solutions of the present application. It should be noted that the expressions about the positional relationship of components in this article, such as that the A component is located above the B component, are based on the expressions about the relative positions of components in the drawings, and are not intended to limit the actual positional relationship of the components.

[0023] Example 1:

[0024] Referring to Figures 1-7 , Figure 1 An exploded schematic view of the present application is drawn. As shown in the figure, the low-power anti-trip non-electric quantity reactivation circuit of the present application includes a trip signal action circuit, a trip signal reset circuit and an anti-trip circuit. The trip signal action circuit includes a voltage dividing resistor, a rectifier diode, a circuit breaking relay, an RC delay circuit, a triode, a trip outlet relay and a trip holding relay. The trip signal reset circuit includes a voltage dividing resistor, a rectifier diode, a circuit breaking relay, an RC delay circuit, a triode, a trip outlet relay and a reset holding relay. The anti-trip circuit includes a voltage dividing resistor, a rectifier diode and an anti-trip relay.

[0025] The trip signal action circuit, the circuit breaker relay DLJ1A, the trip outlet relay K1A, the trip outlet relay K2A, the trip outlet relay K3A and the trip holding relay TBJ1A are connected in parallel, the circuit breaker relay DLJ1A and the triode Q1, the capacitor C4 and the resistor R2 form a circuit breaker relay delay action circuit, the emitter of the triode Q1 is connected with the circuit breaker relay DLJ1A, the base of the triode Q1 is connected with the negative pole of the freewheeling diode D39, the positive pole of the freewheeling diode D39 is connected with the circuit breaker relay DLJ1A, the collector of the triode Q1 is connected with the resistor R2 and the capacitor C4, the freewheeling diode D3 is connected in parallel with the circuit breaker relay DLJ1A;

[0026] The trip outlet relay K1A is connected in parallel with the freewheeling diode D38 and the filter capacitor C3 respectively, the trip outlet relay K2A is connected in parallel with the freewheeling diode D4 and the filter capacitor C2 respectively, the trip outlet relay K3A is connected in parallel with the freewheeling diode D5 and the filter capacitor C1 respectively, the trip holding relay TBJ1A is connected in parallel with the freewheeling diode D18 and the filter capacitor C9 respectively; the coils of the circuit breaker relay DLJ1A, the trip outlet relay K1A, the trip outlet relay K2A, the trip outlet relay K3A and the trip holding relay TBJ1A are connected in series with the resistors R1, R3, R5-R10 for voltage division;

[0027] The rectifier diode D1 and the rectifier diode D2 are connected in series and connected in parallel with the circuit breaker relay DLJ1A, the trip outlet relay K1A, the trip outlet relay K2A, the trip outlet relay K3A and the trip holding relay TBJ1A respectively, the TVS tube D6 is connected in parallel with the circuit breaker relay DLJ1A, the trip outlet relay K1A, the trip outlet relay K2A, the trip outlet relay K3A and the trip holding relay TBJ1A, the rectifier diode D8 and the rectifier diode D37 are connected in series and connected in parallel with the circuit breaker relay DLJ1A, the trip outlet relay K1A, the trip outlet relay K2A, the trip outlet relay K3A and the trip holding relay TBJ1A respectively.

[0028] The trip signal reset circuit, the circuit breaker relay DLJ1B, the trip outlet relay K1B, the trip outlet relay K2B, the trip outlet relay K3B and the reset holding relay FBJ1A are connected in parallel, the circuit breaker relay DLJ1B and the triode Q2, the capacitor C10 and the resistor R4 form a circuit breaker relay delay action circuit, the emitter of the triode Q2 is connected with the circuit breaker relay DLJ1B, the base of the triode Q2 is connected with the negative pole of the freewheeling diode D17, the positive pole of the freewheeling diode D17 is connected with the circuit breaker relay DLJ1B, the collector of the triode Q2 is connected with the resistor R4 and the capacitor C10, the freewheeling diode D12 is connected in parallel with the circuit breaker relay DLJ1B;

[0029] The tripping outlet relay K1B is connected in parallel with the freewheeling diode D13 and the filter capacitor C5, the tripping outlet relay K2B is connected in parallel with the freewheeling diode D14 and the filter capacitor C6, the tripping outlet relay K3B is connected in parallel with the freewheeling diode D15 and the filter capacitor C7, and the reset holding relay FBJ1A is connected in parallel with the freewheeling diode D16 and the filter capacitor C8; the coils of the disconnecting relay DLJ1B, the tripping outlet relay K1B, the tripping outlet relay K2B, the tripping outlet relay K3B and the reset holding relay FBJ1A are connected in series with the resistors R50-R57 for voltage division.

[0030] The rectifier diode D29 and the rectifier diode D31 are connected in series and connected in parallel with the disconnecting relay DLJ1B, the tripping outlet relay K1B, the tripping outlet relay K2B, the tripping outlet relay K3B and the reset holding relay FBJ1A, the TVS tube D11 is connected in parallel with the disconnecting relay DLJ1B, the tripping outlet relay K1B, the tripping outlet relay K2B, the tripping outlet relay K3B and the reset holding relay FBJ1A, and the rectifier diode D7 and the rectifier diode D19 are connected in series and connected in parallel with the disconnecting relay DLJ1B, the tripping outlet relay K1B, the tripping outlet relay K2B, the tripping outlet relay K3B and the reset holding relay FBJ1A.

[0031] In the anti-tripping circuit, the anti-tripping relay FTJ1A is connected in parallel with the freewheeling diode D24 and the filter capacitor C11, the rectifier diode D21 and the rectifier diode D43 are connected in series and connected in parallel with the anti-tripping relay FTJ1A, and the rectifier diode D34 and the rectifier diode D35 are connected in series and connected in parallel with the anti-tripping relay FTJ1A; the coil of the anti-tripping relay FTJ1A is connected in series with the resistor R25 and the resistor R26 for voltage division.

[0032] Working principle:

[0033] (1) In the tripping signal action circuit, R1, R3, R5-R10 are precision resistors, D1, D2, D8, D37 are rectifier diodes, D6 is a TVS tube, D39, D3, D38, D4, D5, D18 are freewheeling diodes, C1, C2, C3, C9 are filter capacitors, R2 and C4 form a disconnecting relay delay action circuit with Q1, DLJ1 is a set of normally open and a set of normally closed contact magnetic latching relay, K1, K2, K3 are two sets of normally open contact magnetic latching relays, and TBJ is a set of normally open and a set of normally closed power relays.

[0034] The resistors R1, R3, R5-R10 and the coils in parallel with DLJ1, K1, K2, K3, TBJ1 are connected in series for voltage division, and D1, D2, D18, D37 rectify the tripping input signal, so that the relays of DLJ1, K1, K2, K3, TBJ1 can work normally and continuously in the power supply circuit of 80%-120%.

[0035] When there is a tripping input signal in DI1, the resistors R1, R3, R5-R10 and the coils in parallel with DLJ1, K1, K2, K3, TBJ1 are connected in series for voltage division, and capacitor C4 is charged, and the transistor Q1 is turned off, so that the action coil of the relay DLJ1 has no driving voltage and cannot act. The action coils of K1, K2, K3, TBJ1 are powered, the relays act, and K1, K2, K3 output corresponding tripping signals. The normally open contact TBJ1C of the TBJ1 relay is closed, DI1 is short-circuited with the power supply KM+, and DI1 is kept powered to prevent the tripping signal action circuit from working abnormally due to the too short power-on time of DI1. After the capacitor C4 is fully charged, the transistor Q1 is turned on, the action coil of the circuit-breaking relay DLJ1 is powered, the relay acts, the normally closed contact DLJ1C is opened, the normally open contact DLJ1D is closed, and the subsequent load is cut off. At this time, the circuit is in a circuit-breaking state to prevent excessive power consumption and serious heating problems. Since the circuit-breaking relay DLJ1 and the tripping outlet relays K1, K2, K3 are all magnetic latching relays, they will maintain the previous state even if the coil loses power, and the output contacts of the tripping outlet relays will maintain the previous action state.

[0036] (2) In the tripping signal reset circuit, R50-R57 are precision resistors, D7, D19, D29, D31 are rectifier diodes, D11 is a TVS tube, D12-D17 are freewheeling diodes, C5-C8 are filter capacitors, R4, C10 and Q2 form a circuit-breaking relay delay action circuit, DLJ1 is a set of normally open and normally closed contact magnetic latching relays, K1, K2, K3 are two sets of normally open contact magnetic latching relays, and FBJ1 is a set of normally open and normally closed power relays.

[0037] The resistors R50-R57 and the coils in parallel with DLJ1, K1, K2, K3, FBJ1 are connected in series for voltage division, and D7, D19, D29, D31 rectify the tripping input signal, so that the relays of DLJ1, K1, K2, K3, FBJ1 can work normally and continuously in the power supply circuit of 80%-120%.

[0038] When the FG has a reset input signal, through the anti-jump relay FTJ1 normally closed contact FTJ1B, resistance R50~R57 and DLJ1, K1, K2, K3, FBJ1 parallel coil voltage division. Capacitor C10 charging, triode Q2 off, DLJ1 relay reset coil has no driving voltage, can not reset, DLJ1D normally open contact after the relay action remains closed state. K1, K2, K3, FBJ1 reset coil power, relay reset, K1, K2, K3 output corresponding trip signal. FBJ1 relay normally open contact FBJ1C, FBJ1C closed, FG and power supply KM+ short, FG remains powered, to prevent the FG power time too short resulting in trip signal action loop abnormal work. Capacitor C10 charging is completed, triode Q2 on, circuit breaker relay DLJ1 reset coil power, relay action, normally closed contact DLJ1C closed, normally open contact DLJ1D is disconnected, cut off the load. At this time the circuit is in the off state, in order to avoid the problem of high power consumption and serious heating. Because of the circuit breaker relay DLJ1, trip outlet relay K1, K2, K3 are magnetic latching relays, even if the coil power will remain the previous state, trip outlet relay output contacts will remain the previous action state.

[0039] (3) the main role of the anti-jump circuit is to prevent the trip outlet relay repeated action, resulting in abnormal device work, when the trip action signal and trip reset signal is applied at the same time.

[0040] The resistance R25, R26 in the anti-jump circuit is a precision resistor, D21, D43, D34, D35 is a rectifier diode, D24 is a freewheeling diode, C11 is a filter capacitor. Resistance R25, R26 and FTJ1 coil voltage division, D21, D43, D34, D35 on the trip input signal rectification, so that the anti-jump relay FTJ1 in 80%~120% power supply circuit can work continuously.

[0041] After DI1 applies the trip action signal, the trip hold relay TBJ1 is energized before the circuit breaker DLJ1 works, the relay operates, the normally open contact TBJ1B is closed, the anti-trip relay FTJ1 coil is energized after being divided by R25 and R26, the relay operates, the normally open contact FTJ1C is closed, and the normally closed contact FTJ1B is opened. At the same time, the trip reset signal is applied by FG, the reset signal passes through the closed normally open contact FTJ1C of the anti-trip relay FTJ1, the anti-trip relay FTJ1 coil is energized after being divided by R25 and R26, and the anti-trip relay FTJ1 can also keep the operating state after the circuit breaker TBJ1 operates and the normally open contact TBJ1B is opened. Since the normally closed contact FTJ1B of the anti-trip relay FTJ1 is opened, the rear circuit is cut off, and the trip outlet relay cannot be reset. Thus, the anti-trip function of preventing the trip outlet relay from repeatedly operating is realized when the trip action signal and the trip reset signal are applied at the same time.

[0042] The above is only a specific application example of the present application, and does not constitute any limitation on the protection scope of the present application. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the present application.

Claims

1. A low-power non-electrical quantity re-start circuit with anti-bounce feature, characterized in that: It includes tripping signal action circuit, tripping signal reset circuit and anti-tripping circuit, the tripping signal action circuit includes voltage dividing resistor, rectifier diode, circuit breaker relay, RC delay circuit, triode, tripping outlet relay and tripping holding relay, the tripping signal reset circuit includes voltage dividing resistor, rectifier diode, circuit breaker relay, RC delay circuit, triode, tripping outlet relay and reset holding relay, the anti-tripping circuit includes voltage dividing resistor, rectifier diode and anti-tripping relay;The circuit breaker relay, tripping outlet relay and tripping holding relay in the tripping signal action circuit are connected in parallel, the circuit breaker relay, tripping outlet relay and reset holding relay in the tripping signal reset circuit are connected in parallel, the anti-tripping relay, rectifier diode and filter capacitor in the anti-tripping circuit are connected in parallel, and the voltage dividing resistor is connected in series with the coil of each relay; Each circuit breaker relay is connected with triode, capacitor, diode and resistor to form RC delay circuit, and the two ends of tripping outlet relay, tripping holding relay and reset holding relay are respectively connected with freewheeling diode and filter capacitor in parallel; In the tripping signal action circuit, the circuit breaker relay DLJ1A is connected with triode Q1, capacitor C4 and resistor R2 to form a circuit breaker relay delay action circuit, the emitter of triode Q1 is connected with circuit breaker relay DLJ1A, the base of triode Q1 is connected with the negative electrode of freewheeling diode D39, the positive electrode of freewheeling diode D39 is connected with circuit breaker relay DLJ1A, the collector of triode Q1 is connected with resistor R2 and capacitor C4, and freewheeling diode D3 is connected with circuit breaker relay DLJ1A in parallel; In the tripping signal action circuit, rectifier diode D1 and rectifier diode D2 are connected in series and connected with circuit breaker relay DLJ1A, tripping outlet relay K1A, tripping outlet relay K2A, tripping outlet relay K3A and tripping holding relay TBJ1A in parallel, TVS tube D6 is connected with circuit breaker relay DLJ1A, tripping outlet relay K1A, tripping outlet relay K2A, tripping outlet relay K3A and tripping holding relay TBJ1A in parallel, rectifier diode D8 and rectifier diode D37 are connected in series and connected with circuit breaker relay DLJ1A, tripping outlet relay K1A, tripping outlet relay K2A, tripping outlet relay K3A and tripping holding relay TBJ1A in parallel; In the tripping signal reset circuit, the circuit breaker relay DLJ1B is connected with triode Q2, capacitor C10 and resistor R4 to form a circuit breaker relay delay action circuit, the emitter of triode Q2 is connected with circuit breaker relay DLJ1B, the base of triode Q2 is connected with the negative electrode of freewheeling diode D17, the positive electrode of freewheeling diode D17 is connected with circuit breaker relay DLJ1B, the collector of triode Q2 is connected with resistor R4 and capacitor C10, and freewheeling diode D12 is connected with circuit breaker relay DLJ1B in parallel. In the trip signal reset circuit, rectifier diode D29 and rectifier diode D31 are connected in series and are connected in parallel with circuit breaking relay DLJ1B, trip outlet relay K1B, trip outlet relay K2B, trip outlet relay K3B and reset holding relay FBJ1A respectively, TVS tube D11 is connected in parallel with circuit breaking relay DLJ1B, trip outlet relay K1B, trip outlet relay K2B, trip outlet relay K3B and reset holding relay FBJ1A, rectifier diode D7 and rectifier diode D19 are connected in series and are connected in parallel with circuit breaking relay DLJ1B, trip outlet relay K1B, trip outlet relay K2B, trip outlet relay K3B and reset holding relay FBJ1A respectively.

2. A low power consumption non-electric quantity re-coil circuit with anti-bounce according to claim 1, characterized in that: In the anti-trip circuit, anti-trip relay FTJ1A is connected in parallel with freewheeling diode D24 and filter capacitor C11 respectively, rectifier diode D21 and rectifier diode D43 are connected in series and are connected in parallel with anti-trip relay FTJ1A, rectifier diode D34 and rectifier diode D35 are connected in series and are connected in parallel with anti-trip relay FTJ1A.

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