CN214380033U - Fault indicator sensor circuit - Google Patents
Fault indicator sensor circuit Download PDFInfo
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- CN214380033U CN214380033U CN202023164036.3U CN202023164036U CN214380033U CN 214380033 U CN214380033 U CN 214380033U CN 202023164036 U CN202023164036 U CN 202023164036U CN 214380033 U CN214380033 U CN 214380033U
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Abstract
The utility model relates to a fault indicator technical field, in particular to fault indicator sensor circuit, including electric capacity C1, electric capacity C3, diode D4, diode D7, relay K1, pulse modulation circuit, rectifier bridge circuit and drive circuit, relay K1's first end is connected with pulse modulation circuit electricity, relay K1's second end is through electric capacity C3 ground connection, relay K1's third end is connected with diode D4's negative pole and drive circuit electricity respectively, relay K1's fourth end is connected with drive circuit, stabilivolt D7's positive pole, electric capacity C1's one end and rectifier bridge circuit electricity respectively, thereby enabling the pulse modulation circuit to output 3 kinds of pulse light with different frequencies, when the maximum overcurrent is different, the frequency that the host computer acquireed is also different, and the staff alright go out the load current of this section of circuit with rapid analysis, conveniently maintain upgrading transformation.
Description
Technical Field
The utility model relates to a fault indicator technical field, in particular to fault indicator sensor circuit.
Background
The cable line of the power distribution station room works under different load currents for a long time, and the increase of power users and the increase of aging internal resistance of the circuit lead the cable line to be in an overcurrent working state frequently, thus causing overcurrent faults of the cable line; in order to identify the operation condition of the cable line and quickly locate a line fault point, a fault indicator device is required to be equipped for providing a cable line fault indication for operators; because the traditional common fault indicator sensor adopts a fixed-point overcurrent alarm mode, namely, fault indication is carried out when the induced current exceeds a fixed current value, the intelligence is lacked, only fault position identification can be provided, and useful information cannot be provided for subsequent cable line upgrading and reconstruction and the like.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problems that: a fault indicator sensor circuit is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a fault indicator sensor circuit comprises a capacitor C1, a capacitor C3, a diode D4, a diode D7, a relay K1, a pulse modulation circuit, a rectifier bridge circuit and a drive circuit;
the first end of the relay K1 is electrically connected with the pulse modulation circuit, the second end of the relay K1 is grounded through a capacitor C3, the third end of the relay K1 is electrically connected with the cathode of a diode D4 and the driving circuit respectively, the fourth end of the relay K1 is electrically connected with the driving circuit, the anode of a voltage regulator tube D7, one end of a capacitor C1 and the rectifier bridge circuit respectively, and the anode of the diode D4 is electrically connected with the driving circuit, the cathode of a voltage regulator tube D7, one end of the capacitor C1 and the rectifier bridge circuit respectively.
Further, the pulse modulation circuit comprises a resistor R1, a resistor R3, a resistor R4, a capacitor C4, a light emitting diode D8 and a chip U1, wherein the model of the chip U1 is NE555, a first pin of the chip U1 is electrically connected with a fifth pin of the chip U1 through the capacitor C4, a second pin of the chip U1 is electrically connected with a sixth pin of the chip U1, one end of the resistor R4 and a first end of a relay K1 respectively, a third pin of the chip U1 is electrically connected with the resistor R3 and the light emitting diode D8 in sequence, a cathode of the light emitting diode D8 is grounded, a fourth pin of the chip U1 is electrically connected with an eighth pin of the chip U1 and one end of the resistor R1 respectively, and a seventh pin of the chip U1 is electrically connected with the other end of the resistor R1 and the other end of the resistor R4 respectively.
Further, the driving circuit comprises a resistor R2, a resistor R6, a potentiometer R5, a capacitor C2, a diode D5 and a voltage regulator tube D6, wherein one end of the resistor R2 is electrically connected with one end of the resistor R6 and the cathode of the diode D4 respectively, the other end of the resistor R2 is electrically connected with the anode of the voltage regulator tube D6, the cathode of the voltage regulator tube D6 is electrically connected with the cathode of the diode D5, the anode of the diode D5 is electrically connected with the sliding end of the potentiometer R5, the capacitors C1 and the voltage regulator tube D7 are connected in parallel with two fixed ends of the potentiometer R5 respectively, the other end of the resistor R6 is electrically connected with one end of the capacitor C2, and the other end of the capacitor C2 is electrically connected with the fourth end of the relay K1.
Further, the LED driving circuit further comprises a diode D1, wherein the cathode of the diode D1 is electrically connected with the anode of the diode D4, and the anode of the diode D1 is electrically connected with the driving circuit, one end of the capacitor C1 and the cathode of the voltage regulator tube D7 respectively.
Further, the rectifier bridge circuit comprises a diode D2, a diode D3, a diode D9 and a diode D10, wherein a cathode of the diode D2 is electrically connected with a cathode of the diode D3, one end of the capacitor C1, a cathode of the voltage regulator tube D7 and the driving circuit respectively, an anode of the diode D2 is electrically connected with a cathode of the diode D9, an anode of the diode D9 is electrically connected with an anode of the diode D10, the other end of the capacitor C1, an anode of the diode D7 and the driving circuit respectively, and an anode of the diode D3 is electrically connected with a cathode of the diode D10.
Further, the input end of the rectifier bridge circuit is connected with a coil X1.
The beneficial effects of the utility model reside in that:
when the value of VCC reaches a certain value, the diode D4 is driven to be conducted, so that the relay K1 is driven to suck; the relay K1 corresponds to different current intervals by adjusting the resistance value of the pulse modulation circuit, and the relay K1 controls the conduction of the capacitor C3 and the node VTR; the capacitance between VTR and ground determines the pulse frequency of its output; the fault indicator sensor circuit of this scheme design can make the pulse modulation circuit output the pulse light of 3 kinds of different frequencies, and is different when the biggest overcurrent, and the frequency that the host computer acquireed is also different, and the staff alright with the load current of rapid analysis this section circuit, conveniently maintains the upgrading transformation.
Drawings
Fig. 1 is a circuit schematic of a fault indicator sensor circuit according to the present invention;
fig. 2 is a circuit schematic of a drive control circuit for a fault indicator sensor circuit according to the present invention;
fig. 3 is a circuit schematic of a drive control circuit for a fault indicator sensor circuit according to the present invention;
description of reference numerals:
1. a pulse modulation circuit; 2. a rectifier bridge circuit; 3. a drive circuit.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, the technical solution provided by the present invention is:
a fault indicator sensor circuit comprises a capacitor C1, a capacitor C3, a diode D4, a diode D7, a relay K1, a pulse modulation circuit, a rectifier bridge circuit and a drive circuit;
the first end of the relay K1 is electrically connected with the pulse modulation circuit, the second end of the relay K1 is grounded through a capacitor C3, the third end of the relay K1 is electrically connected with the cathode of a diode D4 and the driving circuit respectively, the fourth end of the relay K1 is electrically connected with the driving circuit, the anode of a voltage regulator tube D7, one end of a capacitor C1 and the rectifier bridge circuit respectively, and the anode of the diode D4 is electrically connected with the driving circuit, the cathode of a voltage regulator tube D7, one end of the capacitor C1 and the rectifier bridge circuit respectively.
From the above description, the beneficial effects of the present invention are:
when the value of VCC reaches a certain value, the diode D4 is driven to be conducted, so that the relay K1 is driven to suck; the relay K1 corresponds to different current intervals by adjusting the resistance value of the pulse modulation circuit, and the relay K1 controls the conduction of the capacitor C3 and the node VTR; the capacitance between VTR and ground determines the pulse frequency of its output; the fault indicator sensor circuit of this scheme design can make the pulse modulation circuit output the pulse light of 3 kinds of different frequencies, and is different when the biggest overcurrent, and the frequency that the host computer acquireed is also different, and the staff alright with the load current of rapid analysis this section circuit, conveniently maintains the upgrading transformation.
Further, the pulse modulation circuit comprises a resistor R1, a resistor R3, a resistor R4, a capacitor C4, a light emitting diode D8 and a chip U1, wherein the model of the chip U1 is NE555, a first pin of the chip U1 is electrically connected with a fifth pin of the chip U1 through the capacitor C4, a second pin of the chip U1 is electrically connected with a sixth pin of the chip U1, one end of the resistor R4 and a first end of a relay K1 respectively, a third pin of the chip U1 is electrically connected with the resistor R3 and the light emitting diode D8 in sequence, a cathode of the light emitting diode D8 is grounded, a fourth pin of the chip U1 is electrically connected with an eighth pin of the chip U1 and one end of the resistor R1 respectively, and a seventh pin of the chip U1 is electrically connected with the other end of the resistor R1 and the other end of the resistor R4 respectively.
Further, the driving circuit comprises a resistor R2, a resistor R6, a potentiometer R5, a capacitor C2, a diode D5 and a voltage regulator tube D6, wherein one end of the resistor R2 is electrically connected with one end of the resistor R6 and the cathode of the diode D4 respectively, the other end of the resistor R2 is electrically connected with the anode of the voltage regulator tube D6, the cathode of the voltage regulator tube D6 is electrically connected with the cathode of the diode D5, the anode of the diode D5 is electrically connected with the sliding end of the potentiometer R5, the capacitors C1 and the voltage regulator tube D7 are connected in parallel with two fixed ends of the potentiometer R5 respectively, the other end of the resistor R6 is electrically connected with one end of the capacitor C2, and the other end of the capacitor C2 is electrically connected with the fourth end of the relay K1.
Further, the LED driving circuit further comprises a diode D1, wherein the cathode of the diode D1 is electrically connected with the anode of the diode D4, and the anode of the diode D1 is electrically connected with the driving circuit, one end of the capacitor C1 and the cathode of the voltage regulator tube D7 respectively.
Further, the rectifier bridge circuit comprises a diode D2, a diode D3, a diode D9 and a diode D10, wherein a cathode of the diode D2 is electrically connected with a cathode of the diode D3, one end of the capacitor C1, a cathode of the voltage regulator tube D7 and the driving circuit respectively, an anode of the diode D2 is electrically connected with a cathode of the diode D9, an anode of the diode D9 is electrically connected with an anode of the diode D10, the other end of the capacitor C1, an anode of the diode D7 and the driving circuit respectively, and an anode of the diode D3 is electrically connected with a cathode of the diode D10.
Further, the input end of the rectifier bridge circuit is connected with a coil X1.
Referring to fig. 1 to fig. 3, a first embodiment of the present invention is:
referring to fig. 1, a fault indicator sensor circuit includes a capacitor C1 (with a capacitance of 10 μ F), a capacitor C3 (with a capacitance of 10nF), a diode D4 (with a model of MCR100), a diode D7 (with a voltage of 5.1V), a relay K1 (with a model of JRC-200MA), a pulse modulation circuit 1, a rectifier bridge circuit 2, and a driving circuit 3;
the first end of the relay K1 is electrically connected with the pulse modulation circuit 1, the second end of the relay K1 is grounded through a capacitor C3, the third end of the relay K1 is electrically connected with the cathode of the diode D4 and the driving circuit 3 respectively, the fourth end of the relay K1 is electrically connected with the driving circuit 3, the anode of the voltage regulator tube D7, one end of the capacitor C1 and the rectifier bridge circuit 2 respectively, and the anode of the diode D4 is electrically connected with the driving circuit 3, the cathode of the voltage regulator tube D7, one end of the capacitor C1 and the rectifier bridge circuit 2 respectively.
Referring to fig. 1, the pulse modulation circuit 1 includes a resistor R1 (with a resistance of 10k Ω), a resistor R3 (with a resistance of 2k Ω), a resistor R4 (with a resistance of 10k Ω), a capacitor C4 (with a capacitance of 10 μ F), a light emitting diode D8, and a chip U1 (model NE555), the first pin of the chip U1 is electrically connected to the fifth pin of the chip U1 through a capacitor C4, the second pin of the chip U1 is electrically connected with the sixth pin of the chip U1, one end of the resistor R4 and the first end of the relay K1 respectively, the third pin of the chip U1 is electrically connected with the resistor R3 and the LED D8 in turn, the cathode of the LED D8 is grounded, the fourth pin of the chip U1 is electrically connected to the eighth pin of the chip U1 and one end of the resistor R1, the seventh pin of the chip U1 is electrically connected to the other end of the resistor R1 and the other end of the resistor R4, respectively.
Referring to fig. 1, the driving circuit 3 includes a resistor R2 (having a resistance value of 2.2K Ω), a resistor R6 (having a resistance value of 6.8K Ω), a potentiometer R5 (having a resistance value of 100K Ω), a capacitor C2 (having a capacitance value of 10 μ F), a diode D5 (having a model number of 1N4148), and a voltage regulator D6 (having a voltage value of 5.1V), one end of the resistor R2 is electrically connected to one end of the resistor R6 and a cathode of the diode D4, the other end of the resistor R2 is electrically connected to an anode of the voltage regulator D6, a cathode of the voltage regulator D6 is electrically connected to a cathode of the diode D5, an anode of the diode D5 is electrically connected to a sliding end of the potentiometer R5, the capacitors C1 and D7 are electrically connected to two stationary ends of the potentiometer R5 in parallel, the other end of the resistor R6 is electrically connected to one end of the capacitor C2, and the other end of the capacitor C2 is electrically connected to a fourth end of the relay K1.
The LED driving circuit further comprises a diode D1 (model number is 1N4148), the cathode of the diode D1 is electrically connected with the anode of the diode D4, and the anode of the diode D1 is electrically connected with the driving circuit 3, one end of the capacitor C1 and the cathode of the voltage regulator tube D7 respectively.
The rectifier bridge circuit 2 comprises a diode D2 (model number is 1N4148), a diode D3 (model number is 1N4148), a diode D9 (model number is 1N4148) and a diode D10 (model number is 1N4148), wherein the cathode of the diode D2 is electrically connected with the cathode of the diode D3, one end of a capacitor C1, the cathode of a voltage regulator tube D7 and the driving circuit 3 respectively, the anode of the diode D2 is electrically connected with the cathode of the diode D9, the anode of the diode D9 is electrically connected with the anode of the diode D10, the other end of the capacitor C1, the anode of the diode D7 and the driving circuit 3 respectively, and the anode of the diode D3 is electrically connected with the cathode of the diode D10.
And the input end of the rectifier bridge circuit 2 is connected with a coil X1 (the model is TJC 3-2A).
The fault indicator sensor circuit further comprises at least one driving control circuit, wherein the driving control circuit comprises a resistor R7 (with a resistance value of 2.2K Ω), a resistor R8 (with a resistance value of 100K Ω), a resistor R9 (with a resistance value of 6.8K Ω), a capacitor C5 (with a capacitance value of 10 μ F), a capacitor C6 (with a capacitance value of 100nF), a diode D11 (with a model of 1N4148), a diode D13 (with a model of 1N4148), a diode D14 (with a model of 1N4148) and a relay K2 (with a model of JRC-200MA), and specific connection relations among all components refer to FIG. 2; fig. 3 also shows a driving control circuit, and when the number of driving control circuits connected to the second pin of the chip U1 is increased, the accuracy of the obtained parameter value is increased.
The working principle of the fault indicator sensor circuit is as follows:
the X1 is a coil access point, current coupled with the coil is rectified by four diodes, a direct current voltage with stable voltage waveform is formed at the anode of the diode D1, and the direct current voltage is stabilized below 5V by the clamping action of the voltage regulator tube D7; the resistor R5, the diode D5, the voltage regulator tube D6, the resistor R2, the resistor R6 and the capacitor C2 form a driving circuit 3, and when the value of VCC reaches a certain value, the diode D4 is driven to be conducted, so that the relay K1 is driven to suck; the resistance values of the potentiometer R5, the potentiometer R8 and the potentiometer R11 are respectively adjusted, so that the relay K1, the relay K2 and the relay K3 respectively correspond to different current intervals, and the relay K1, the relay K2 and the relay K3 respectively control the conduction of the capacitor C3, the capacitor C6 and the capacitor C8 and the node VTR; the chip U1 is a pulse modulation circuit 1 composed of NE555, and the capacitance between VTR and ground determines the pulse frequency of its output, which is converted into an optical signal by a light emitting diode D8.
When the current end of the coil X1 is in the first-stage current interval, the relay K1 is switched on, and the capacitance value between the VTR and the ground is 10 nF; when the current end of the coil X1 is in a second-stage current interval, the relay K1 and the relay K2 are conducted, and the capacitance value between the VTR and the ground is 10nF and 100nF in parallel; when the current end of the coil X1 is in a third-stage current interval, the relay K1, the relay K2 and the relay K3 are conducted, and the capacitance value between the VTR and the ground is 10nF, 100nF and 1 uF; therefore, the pulse modulation circuit 1 outputs 3 pulse light rays with different frequencies, when the maximum overcurrent is different, the frequency acquired by the host is also different, a worker can quickly analyze the load current of the circuit, and the maintenance, upgrading and transformation are convenient.
To sum up, the utility model provides a fault indicator sensor circuit, when the value of VCC reaches a certain value, drive diode D4 switches on to drive relay K1 actuation; the relay K1 corresponds to different current intervals by adjusting the resistance value of the pulse modulation circuit, and the relay K1 controls the conduction of the capacitor C3 and the node VTR; the capacitance between VTR and ground determines the pulse frequency of its output; the fault indicator sensor circuit of this scheme design can make the pulse modulation circuit output the pulse light of 3 kinds of different frequencies, and is different when the biggest overcurrent, and the frequency that the host computer acquireed is also different, and the staff alright with the load current of this section of circuit of rapid analysis play, conveniently maintains the upgrading transformation.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (6)
1. A fault indicator sensor circuit, comprising a capacitor C1, a capacitor C3, a diode D4, a diode D7, a relay K1, a pulse modulation circuit, a rectifier bridge circuit and a drive circuit;
the first end of the relay K1 is electrically connected with the pulse modulation circuit, the second end of the relay K1 is grounded through a capacitor C3, the third end of the relay K1 is electrically connected with the cathode of a diode D4 and the driving circuit respectively, the fourth end of the relay K1 is electrically connected with the driving circuit, the anode of a voltage regulator tube D7, one end of a capacitor C1 and the rectifier bridge circuit respectively, and the anode of the diode D4 is electrically connected with the driving circuit, the cathode of a voltage regulator tube D7, one end of the capacitor C1 and the rectifier bridge circuit respectively.
2. The fault indicator sensor circuit according to claim 1, wherein the pulse modulation circuit comprises a resistor R1, a resistor R3, a resistor R4, a capacitor C4, a light emitting diode D8 and a chip U1, the chip U1 is of type NE555, the first pin of the chip U1 is electrically connected with the fifth pin of the chip U1 through a capacitor C4, the second pin of the chip U1 is electrically connected with the sixth pin of the chip U1, one end of the resistor R4 and the first end of the relay K1, the third pin of the chip U1 is electrically connected with a resistor R3 and a light emitting diode D8 in turn, the cathode of the light emitting diode D8 is grounded, the fourth pin of the chip U1 is electrically connected with the eighth pin of the chip U1 and one end of the resistor R1, and the seventh pin of the chip U1 is electrically connected with the other end of the resistor R1 and the other end of the resistor R4.
3. The fault indicator sensor circuit according to claim 1, wherein the driving circuit comprises a resistor R2, a resistor R6, a potentiometer R5, a capacitor C2, a diode D5 and a voltage regulator tube D6, one end of the resistor R2 is electrically connected with one end of the resistor R6 and the cathode of the diode D4 respectively, the other end of the resistor R2 is electrically connected with the anode of the voltage regulator tube D6, the cathode of the voltage regulator tube D6 is electrically connected with the cathode of the diode D5, the anode of the diode D5 is electrically connected with the sliding end of the potentiometer R5, the capacitor C1 and the voltage regulator tube D7 are connected in parallel with the two fixed ends of the potentiometer R5 respectively, the other end of the resistor R6 is electrically connected with one end of a capacitor C2, and the other end of the capacitor C2 is electrically connected with the fourth end of the relay K1.
4. The fault indicator sensor circuit according to claim 1, further comprising a diode D1, wherein a cathode of the diode D1 is electrically connected to an anode of the diode D4, and an anode of the diode D1 is electrically connected to the driving circuit, one end of the capacitor C1, and a cathode of the zener D7, respectively.
5. The fault indicator sensor circuit according to claim 1, wherein the rectifier bridge circuit comprises a diode D2, a diode D3, a diode D9 and a diode D10, wherein a cathode of the diode D2 is electrically connected with a cathode of the diode D3, one end of a capacitor C1, a cathode of a stabilivolt D7 and the driving circuit respectively, an anode of the diode D2 is electrically connected with a cathode of the diode D9, an anode of the diode D9 is electrically connected with an anode of the diode D10, the other end of the capacitor C1, an anode of the diode D7 and the driving circuit respectively, and an anode of the diode D3 is electrically connected with a cathode of the diode D10.
6. The fault indicator sensor circuit of claim 1, wherein the input of the rectifier bridge circuit is connected to coil X1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023164036.3U CN214380033U (en) | 2020-12-24 | 2020-12-24 | Fault indicator sensor circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023164036.3U CN214380033U (en) | 2020-12-24 | 2020-12-24 | Fault indicator sensor circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214380033U true CN214380033U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023164036.3U Active CN214380033U (en) | 2020-12-24 | 2020-12-24 | Fault indicator sensor circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214380033U (en) |
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2020
- 2020-12-24 CN CN202023164036.3U patent/CN214380033U/en active Active
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