CN205229387U - Insulating detection device of safety tool - Google Patents
Insulating detection device of safety tool Download PDFInfo
- Publication number
- CN205229387U CN205229387U CN201520877090.2U CN201520877090U CN205229387U CN 205229387 U CN205229387 U CN 205229387U CN 201520877090 U CN201520877090 U CN 201520877090U CN 205229387 U CN205229387 U CN 205229387U
- Authority
- CN
- China
- Prior art keywords
- branch road
- warning
- current
- signal
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
The utility model provides an insulating detection device of safety tool, each utensil branch road in the test circuit is treated detection safety tool and is carried out the insulating detection of high -frequency voltage, and wherein the little current relay in the utensil branch road carries out current detection to the utensil branch road at place, if the measuring current value is greater than little current relay's the current value of predetermineeing, then is somebody's turn to do current relay closure a little for the signal transmission branch road that corresponds with this current relay that declines switches on, the signal relay who corresponds the signal transmission branch road among the signal circuit is closed, and the warning branch road that corresponds with this signal relay switches on, and the pilot lamp in the branch road of should reporting to the police lights. Consequently, a plurality of safety tool s' the insulating detection condition, can be judged from the state of each pilot lamp simultaneously to improve detection efficiency.
Description
Technical field
The utility model relates to field of power, particularly a kind of managing security tools and instruments insulation detection device.
Background technology
Auxiliary security Work tool is carried out in the conventional equipment of Insulation monitoring, as shown in Figure 1, comprise knife switch K1, knife switch K2, fuse FU1, fuse FU2, current foldback circuit, pressure regulator T, testing transformer T1, voltage table V, the managing security tools and instruments RL that milliammeter mA and two ends are connected with described testing transformer T1 two output terminals respectively, 220V alternating voltage is respectively by knife switch K1 and fuse FU1, and knife switch K2 and fuse FU2 inputs to two input ends of current foldback circuit, alternating voltage transfers to pressure regulator T by current foldback circuit, the Secondary Winding of 0 to 220V voltage to testing transformer T1 is exported by pressure regulator T, according to electromagnetic induction principle, testing transformer produces 0 to 50KV power-frequency voltage, managing security tools and instruments RL two ends are made to obtain the trial voltage preset, voltage table V monitors the voltage that managing security tools and instruments RL applies, milliammeter mA monitors the leakage current of managing security tools and instruments RL, judge that whether managing security tools and instruments RL is qualified according to the detected value of milliammeter mA.
But current insulation detection device, milliammeter can only measure the leakage current of single managing security tools and instruments, only carries out the detection of single managing security tools and instruments, inefficiency at every turn.If at high-pressure side many branch roads in parallel, but this milliammeter can only measure the summation of many managing security tools and instruments leakage currents, which managing security tools and instruments existing defects concrete accurately can not be judged.If think the detection once carrying out many managing security tools and instruments, the leakage current of many managing security tools and instruments can be measured again exactly simultaneously, the leakage current that every bar branch road test product measured respectively by a milliammeter need be connected in series at every bar branch road, this just needs operating personnel within the time of pressurization, observe the change of many milliammeters simultaneously, record the leakage current values of every branch road, to differentiate that whether test product is qualified, therefore, labour intensity is very large, and detection efficiency is not ideal enough.
Utility model content
For the problem detecting many managing security tools and instruments inefficiencies while existing in above-mentioned prior art, the utility model provides a kind of managing security tools and instruments insulation detection device, can improve the efficiency simultaneously detecting many managing security tools and instruments.
Scheme of the present utility model is as follows:
Managing security tools and instruments insulation detection device, comprise the hookup for producing HF voltage at managing security tools and instruments two ends to be detected, described hookup comprises the utensil branch road of some parallel connections, and each utensil branch road comprises a micro-current relay and a managing security tools and instruments to be detected of series connection;
Also comprise the signal circuit be connected with described hookup, described signal circuit comprises the Signal transmissions branch road of some parallel connections, each Signal transmissions branch road comprises a signal relay, and each Signal transmissions branch road accesses described signal circuit respectively by micro-current relay of a utensil branch road;
Also comprise the warning circuit be connected with described signal circuit, described warning circuit comprises the warning branch road of some parallel connections, and each warning branch road comprises a pilot lamp, and each warning branch road accesses described warning circuit respectively by the signal relay of a Signal transmissions branch road;
Described utensil branch road, Signal transmissions branch road and warning branch road three quantity are equal;
If the electric current of the utensil branch road at certain micro-current relay place is greater than the current value that this micro-current relay is preset, then this micro-current relay closes, make the Signal transmissions branch road conducting that current relay micro-with this is corresponding, signal relay in this Signal transmissions branch road closes, the warning branch road conducting corresponding with this signal relay, the pilot lamp in this warning branch road lights.
Managing security tools and instruments insulation detection device of the present utility model, each utensil branch road in described hookup carries out HF voltage Insulation monitoring to managing security tools and instruments to be detected, the utensil branch road of micro-current relay wherein in utensil branch road to place carries out current detecting, if detect the pre-set current value that current value is greater than micro-current relay, then this micro-current relay closes, and makes the Signal transmissions branch road conducting that current relay micro-with this is corresponding; In described signal circuit, the signal relay of respective signal transmission branch closes, and the warning branch road conducting corresponding with this signal relay, the pilot lamp in this warning branch road lights.Therefore, the Insulation monitoring situation of multiple managing security tools and instruments can be judged from the state of each pilot lamp simultaneously, thus improve detection efficiency.
Wherein in an embodiment, described hookup also comprises:
Current foldback circuit, pressure regulator and transformer, the output terminal of described current foldback circuit is connected with the input end of pressure regulator, the output terminal of described pressure regulator is connected with the voltage input end of transformer, and the voltage output end of described transformer is connected with the voltage input end of each utensil branch road respectively;
Alternating voltage inputs to pressure regulator through current foldback circuit, and pressure regulator exports described AC power to transformer, and control transformer output high voltage is to each utensil branch road.
In the present embodiment, described current foldback circuit provides the input of stable alternating voltage for hookup, thus ensures the security of managing security tools and instruments Insulation monitoring to be detected; Described pressure regulator control transformer output voltage is to each utensil branch road, thus make the voltage that described hookup can provide different, with the voltage requirements of satisfied difference managing security tools and instruments to be detected, improve the dirigibility of described managing security tools and instruments insulation detection device application to be detected.
Wherein in an embodiment, described current foldback circuit comprises:
Gate branch road and output controlling brancher, described gate branch road comprises A.C. contactor and the gate controlled switch of series connection, and described output controlling brancher comprises two protection switches be connected with pressure regulator two input ends respectively;
During work, described gate controlled switch closes, A.C. contactor conducting, and two protection switches close, and described current foldback circuit output AC voltage is to pressure regulator; During enabling, described gate controlled switch disconnects, and A.C. contactor disconnects, and two protection switches disconnect, and described current foldback circuit stops output AC voltage to pressure regulator.
By the present embodiment, further increase the security of managing security tools and instruments Insulation monitoring.
Wherein in an embodiment, also comprise in described signal circuit:
Signal circuit power supply and reset switch, described signal circuit power supply one end is connected with one end of described reset switch, and the other end is connected with one end of each Signal transmissions branch road, and the other end of described reset switch is connected with the other end of each Signal transmissions branch road;
Described each Signal transmissions branch road also comprises:
Auxiliary switch, the two ends of described auxiliary switch connect with the two ends of corresponding micro-current relay respectively, when described micro-current relay disconnects, make corresponding Signal transmissions branch road keep conducting by closed described auxiliary switch.
In the present embodiment, described reset switch improves the convenience of Insulation monitoring operation; Described auxiliary switch is closed when the conducting of Signal transmissions branch road, when the micro-current relay be connected with Signal transmissions branch road disconnects, auxiliary switch remains closed, thus make the signal relay of original conducting continue when described signal circuit Power supply to keep conducting state, improve Insulation monitoring judging efficiency further.
Wherein in an embodiment, described warning circuit also comprises:
Warning circuit power supply, described warning circuit power supply one end is connected with one end of each warning branch road, and the warning circuit power supply other end is connected with the other end of each warning branch road;
Each warning branch road also comprises:
Current-limiting resistance, described current-limiting resistance is connected with pilot lamp.
In the present embodiment, even if described warning circuit power supply can ensure when signal relay On current is less, still can there is the bright degree of lamp of enough intensifying current pilot lamp, make it possible to obviously judge the bright state of the lamp of pilot lamp, improve the judging efficiency of Insulation monitoring further; Described current-limiting resistance can the electric current of restricted passage pilot lamp, prevents pilot lamp electric current excessive and burns.
Wherein in an embodiment, described warning circuit also comprises:
Hummer, each warning branch road all accesses described warning circuit by described hummer; During arbitrary warning branch road conducting, hummer rings;
Each warning branch road also comprises:
Diode, the positive pole of described diode is connected with the positive pole of described warning circuit power supply by corresponding signal relay, and the negative pole of described diode is connected with described hummer.
In the present embodiment, due to the characteristic of diode unilateal conduction, the warning branch road of conducting state can not affect the warning branch road of off-state, thus makes buzzer and the same alarm of pilot lamp, improves Insulation monitoring accuracy further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the managing security tools and instruments Insulation monitoring conventional equipment of prior art;
Fig. 2 is the structural representation of the managing security tools and instruments insulation detection device of an embodiment;
Fig. 3 is the structural representation of the hookup of an embodiment;
Fig. 4 is the structural representation of the hookup of a better embodiment;
Fig. 5 is the structural representation of the current foldback circuit of an embodiment;
Fig. 6 is the structural representation of the signal circuit of an embodiment;
Fig. 7 is the structural representation of the signal circuit of a better embodiment;
Fig. 8 is the structural representation of the warning circuit of an embodiment;
Fig. 9 is the structural representation of the warning circuit of a better embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to the structural representation of the managing security tools and instruments insulation detection device of an embodiment in Fig. 2.
Managing security tools and instruments insulation detection device, comprise the hookup 200 for producing HF voltage at managing security tools and instruments 203 two ends to be detected, described hookup comprises the utensil branch road of some parallel connections, and each utensil branch road comprises micro-current relay 204 and a managing security tools and instruments 203 to be detected of series connection;
Also comprise the signal circuit 201 be connected with described hookup 200, described signal circuit 201 comprises the Signal transmissions branch road of some parallel connections, each Signal transmissions branch road comprises a signal relay 205, and each Signal transmissions branch road accesses described signal circuit 201 respectively by micro-current relay 204 of a utensil branch road;
Also comprise the warning circuit 202 be connected with described signal circuit 201, described warning circuit 202 comprises the warning branch road of some parallel connections, each warning branch road comprises a pilot lamp 206, and each warning branch road accesses described warning circuit 202 respectively by the signal relay 205 of a Signal transmissions branch road;
Described utensil branch road, Signal transmissions branch road and warning branch road three quantity are equal;
If the electric current of the utensil branch road at certain micro-current relay 204 place is greater than the current value that this micro-current relay 204 is preset, then this micro-current relay 204 closes, make the Signal transmissions branch road conducting that current relay 204 micro-with this is corresponding, signal relay 205 in this Signal transmissions branch road closes, the warning branch road conducting corresponding with this signal relay 205, the pilot lamp 206 in this warning branch road lights.
Wherein, described managing security tools and instruments 203 comprises the Work tool of energy direct control charging equipment or contact electrification body, as condensing type electroscope, insulating bar, phasing tester, insulating boot, insulating barrier etc.; Comprising dielectric strength is not the operating voltage of bearing equipment or circuit, in order to prevent touch voltage, step voltage, leakage current electric arc from damaging operating personnel, strengthens the Work tool of security personnel's effect, as insulating glove, insulating boot, insulation rubber cushion etc. yet.
The pre-set current value of described micro-current relay 204 is adjustable, by the precision regulating described pre-set current value can improve managing security tools and instruments 203 Insulation monitoring, or carries out the Insulation monitoring of different managing security tools and instruments 203 simultaneously.
The utensil branch road of described some parallel connections, each utensil branch road comprises micro-current relay 204 and a managing security tools and instruments 203 to be detected of series connection, under same high voltage, can detect the insulating property of different managing security tools and instruments 203 simultaneously, while improving Insulation monitoring, increase the dirigibility of its application.
In the present embodiment, each utensil branch road in described hookup 200 carries out HF voltage Insulation monitoring to each managing security tools and instruments 203 to be detected, the utensil branch road at the micro-current relay 204 pairs of places wherein in utensil branch road carries out current detecting, if detect, current value is greater than the pre-set current value of micro-current relay 204, then this micro-current relay 204 closes, and makes the Signal transmissions branch road conducting that current relay 204 micro-with this is corresponding; In described signal circuit 201, the signal relay 205 of respective signal transmission branch closes, and the warning branch road conducting corresponding with this signal relay 205, the pilot lamp 206 in this warning branch road lights.Therefore, the Insulation monitoring situation of multiple managing security tools and instruments 203 can be judged from the state of each pilot lamp 206 simultaneously, thus improve detection efficiency.
Refer to the structural representation of the hookup of an embodiment in Fig. 3.
Wherein in an embodiment, described hookup 200 also comprises:
Current foldback circuit 300, pressure regulator 301 and transformer 302, the output terminal of described current foldback circuit 300 is connected with the input end of pressure regulator 301, the output terminal of described pressure regulator 301 is connected with the voltage input end of transformer 302, and the voltage output end of described transformer 302 is connected with the two ends of each utensil branch road respectively;
Alternating voltage inputs to pressure regulator 301 through current foldback circuit 300, and pressure regulator 301 exports described AC power to transformer 302, and control transformer 302 output high voltage is to each utensil branch road.
In the present embodiment, described current foldback circuit 300 provides the input of stable alternating voltage for hookup, thus ensures the security of managing security tools and instruments 203 Insulation monitoring to be detected; Described pressure regulator 301 control transformer output high voltage is to each utensil branch road, thus make the HF voltage that described hookup can provide different, with the HF voltage demand of satisfied difference managing security tools and instruments to be detected, improve the dirigibility of described managing security tools and instruments insulation detection device application to be detected.
Wherein, if the managing security tools and instruments 203 detected is breakdown, as being short-circuited, flashover, when the excess current such as to puncture, described current foldback circuit 300 can protection circuit action, the power supply of open test circuit, proterctive equipment safety.
Further, described hookup 200 also comprises reometer, voltage table and milliammeter, described reometer is connected with the output terminal of pressure regulator 301, monitor the output current of pressure regulator 301, described voltage table is connected with the output terminal of transformer 302, monitor the high-frequency output voltage of transformer 302, described milliammeter is connected with the output terminal of transformer 302, monitors the electric current sum of each utensil branch road.
Refer to the structural representation of the hookup of a better embodiment in Fig. 4.
As shown in Figure 4; hookup comprises safety interlock system current foldback circuit (i.e. current foldback circuit), pressure regulator T, reometer, voltage table, transformer T1,20 utensil branch roads (for detecting 20 Work tools simultaneously) in parallel, each utensil branch road comprise a micro-current relay (L1, L2, L3 ..., L20 represent 20 micro-current relay) and managing security tools and instruments (RL1, RL2, RL3 ..., RL20 represents 20 managing security tools and instruments).Two output terminals of described safety interlock system current foldback circuit are connected with two input ends of pressure regulator T respectively; the output terminal of pressure regulator T is connected with transformer T1 input end through reometer; one output terminal of transformer T1 is connected with micro-current relay one end of 20 utensil branch roads respectively; another output terminal of transformer T1 is connected with managing security tools and instruments one end of 20 utensil branch roads respectively, and in each utensil branch road, micro-current relay other end is connected with the managing security tools and instruments other end.
Hookup also comprises knife switch K1, knife switch K1, fuse FU1 and fuse FU2,220V alternating voltage transfer to safety interlock system current foldback circuit two input ends respectively through knife switch K1 and fuse FU1 and knife switch K1 and fuse FU2.
Safety interlock system current foldback circuit by 220V AC voltages transmission to pressure regulator T; described pressure regulator T exports the input end of 0 to 220V voltage to transformer T1; described transformer T1 is according to electromagnetic induction principle; export the voltage input end of HF voltage to a 20 utensil branch road of 0 to 50KV; Insulation monitoring is carried out to 20 managing security tools and instruments in 20 utensil branch roads simultaneously; 20 micro-current relay detect the Leakage Current of corresponding 20 managing security tools and instruments respectively, thus improve the dirigibility of described managing security tools and instruments insulation detection device application to be detected.
The wherein output current of reometer monitoring pressure regulator T, if output current is greater than setting value, then the output terminal of safety interlock system current foldback circuit disconnects, and prevents electric current in circuit excessive and damages electrical equipment; The output voltage of voltage table monitoring transformer T1, the voltage of monitoring 20 utensil branch roads in real time, handled easily personnel understand the voltage in hookup in real time, strengthen Consumer's Experience.
Refer to the structural representation of the current foldback circuit of an embodiment in Fig. 5.
Wherein in an embodiment, described current foldback circuit comprises:
Gate branch road and output controlling brancher, described gate branch road comprises A.C. contactor 500 and the gate controlled switch 501 of series connection, and described output controlling brancher comprises two protection switches 502 be connected with pressure regulator two input ends respectively;
During work, described gate controlled switch 501 closes, A.C. contactor 500 conducting, and two protection switches 502 close, and described current foldback circuit output AC voltage is to pressure regulator; During enabling, described gate controlled switch 501 disconnects, and A.C. contactor 500 disconnects, and two protection switches 502 disconnect, and described current foldback circuit stops output AC voltage to pressure regulator.
By the present embodiment, further increase the security of managing security tools and instruments Insulation monitoring.
Refer to the structural representation of the signal circuit of an embodiment in Fig. 6.
Wherein in an embodiment, also comprise in described signal circuit 201:
Signal circuit power supply 601 and reset switch 600, described signal circuit power supply 601 one end is connected with one end of described reset switch 600, the other end is connected with one end of each Signal transmissions branch road, and the other end of described reset switch 600 is connected with the other end of each Signal transmissions branch road;
Described each Signal transmissions branch road also comprises:
Auxiliary switch 602, the two ends of described auxiliary switch 602 connect with the two ends of corresponding micro-current relay 204 respectively, when described micro-current relay 204 disconnects, make corresponding Signal transmissions branch road keep conducting by closed described auxiliary switch 602.
In the present embodiment, described reset switch 600 improves the convenience of Insulation monitoring operation; Described auxiliary switch 602 is closed when the conducting of Signal transmissions branch road, when the micro-current relay 204 be connected with Signal transmissions branch road disconnects, auxiliary switch 602 remains closed, make corresponding Signal transmissions branch road keep conducting by closed described auxiliary switch 602, improve Insulation monitoring accuracy further.
Refer to the structural representation of the signal circuit of a better embodiment in Fig. 7.
As shown in Figure 7, signal circuit comprises the 12V direct supply (i.e. signal circuit power supply) of series connection and reset switch SB and 20 Signal transmissions branch road in parallel, each Signal transmissions branch road comprises L switch (i.e. micro-current relay) in parallel and auxiliary switch X, auxiliary switch X, connects with signal relay X, and wherein the action current of L switch is adjustable, time initial, auxiliary switch X, is off state.
In hypothesis test circuit, the electric current of Article 1 utensil branch road is greater than the current value that micro-current relay is preset, then L1 (i.e. micro-current relay of Article 1 utensil branch road) closes, signal relay X1 (i.e. the signal relay of Article 1 Signal transmissions branch road) conducting, auxiliary switch X
,1 (i.e. the auxiliary switch of Article 1 Signal transmissions branch road) closes; If L1 surprisingly disconnects, or the electric current of the utensil branch road at this micro-current relay place no longer reaches default current value, and namely L1 disconnects, and now, signal relay X1 is by auxiliary switch X
,1 continues when described 12V DC power supply to keep conducting state; After security tool device has detected in Article 1 utensil branch road, press reset switch SB release signal relay X1, auxiliary switch X
,1 disconnects.This improves the Insulation monitoring accuracy of security tool device in Article 1 utensil branch road.
Refer to the structural representation of the warning circuit of an embodiment in Fig. 8.
Wherein in an embodiment, described warning circuit 202 also comprises:
Warning circuit power supply 800, described warning circuit power supply 800 one end is connected with one end of each warning branch road, and warning circuit power supply 800 other end is connected with the other end of each warning branch road;
Each warning branch road also comprises:
Current-limiting resistance 801, described current-limiting resistance 801 is connected with pilot lamp 205.
In the present embodiment, even if described warning circuit power supply 800 can ensure when signal relay 205 On current is less, still can there is the bright degree of lamp of enough intensifying current pilot lamp 206, make it possible to obviously judge the bright state of the lamp of pilot lamp 206, improve the judging efficiency of Insulation monitoring further; Described current-limiting resistance 801 can the electric current of restricted passage pilot lamp 206, prevents pilot lamp 206 electric current excessive and burns.
Wherein in an embodiment, described warning circuit also comprises:
Hummer, each warning branch road all accesses described warning circuit by described hummer; During arbitrary warning branch road conducting, hummer rings;
Each warning branch road also comprises:
Diode, the positive pole of described diode is connected with the positive pole of described warning circuit power supply by corresponding signal relay, and the negative pole of described diode is connected with described hummer.
In the present embodiment, due to the characteristic of diode unilateal conduction, the warning branch road of conducting state can not affect the warning branch road of off-state, thus does not affect the state of other branch road pilot lamp, improves Insulation monitoring accuracy further.
Fig. 9 is the structural representation of the warning circuit of a better embodiment.
As shown in Figure 9, warning circuit comprises 20 warning branch roads in parallel, for warning branch road provides the 12V direct supply (i.e. warning circuit power supply) of power supply, and hummer, each warning branch road comprises current-limiting resistance R and the pilot lamp XD of series connection, each warning branch road also comprises the diode D in parallel with current-limiting resistance R and pilot lamp XD, each warning branch road one end connects the positive pole of direct supply by signal relay X, the positive pole of described diode is also connected with the positive pole of described direct supply by this signal relay, the negative pole of described diode is connected with described hummer one end, the described hummer other end connects the negative pole of direct supply, during arbitrary warning branch road conducting, hummer rings.
In hypothesis test circuit, the electric current of Article 1 utensil branch road is greater than the current value that micro-current relay is preset, then X
1(i.e. the signal relay of Article 1 Signal transmissions branch road) switch closes, pilot lamp XD1 (i.e. the pilot lamp of Article 1 warning branch road) lights, diode D1 (i.e. the diode of Article 1 warning branch road) conducting, hummer sends alarm sound, therefore, the object of sound and light alarm while of hummer and pilot lamp XD1 is reached.
Wherein, even if described 12V direct supply can ensure at X
1when the On current of switch is less, still can there is the bright degree of lamp of enough intensifying current pilot lamp XD1, make it possible to obviously judge the bright state of the lamp of pilot lamp XD1, improve the judging efficiency of Insulation monitoring further.
Described current-limiting resistance R1 (i.e. the current-limiting resistance of Article 1 warning branch road) can at X
1when the On current of switch is larger, the electric current of restricted passage pilot lamp XD1, prevents the electric current of pilot lamp XD1 excessive and burns.
After described diode D1 conducting, due to the characteristic of diode unilateal conduction, the warning branch road of conducting state can not affect the warning branch road of off-state, thus does not affect the state of other branch road pilot lamp, improves Insulation monitoring accuracy further.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (6)
1. managing security tools and instruments insulation detection device, it is characterized in that, comprise the hookup for producing HF voltage at managing security tools and instruments two ends to be detected, described hookup comprises the utensil branch road of some parallel connections, and each utensil branch road comprises a micro-current relay and a managing security tools and instruments to be detected of series connection;
Also comprise the signal circuit be connected with described hookup, described signal circuit comprises the Signal transmissions branch road of some parallel connections, each Signal transmissions branch road comprises a signal relay, and each Signal transmissions branch road accesses described signal circuit respectively by micro-current relay of a utensil branch road;
Also comprise the warning circuit be connected with described signal circuit, described warning circuit comprises the warning branch road of some parallel connections, and each warning branch road comprises a pilot lamp, and each warning branch road accesses described warning circuit respectively by the signal relay of a Signal transmissions branch road;
Described utensil branch road, Signal transmissions branch road and warning branch road three quantity are equal;
If the electric current of the utensil branch road at certain micro-current relay place is greater than the current value that this micro-current relay is preset, then this micro-current relay closes, make the Signal transmissions branch road conducting that current relay micro-with this is corresponding, signal relay in this Signal transmissions branch road closes, the warning branch road conducting corresponding with this signal relay, the pilot lamp in this warning branch road lights.
2. managing security tools and instruments insulation detection device according to claim 1, is characterized in that, described hookup also comprises:
Current foldback circuit, pressure regulator and transformer, the output terminal of described current foldback circuit is connected with the input end of pressure regulator, the output terminal of described pressure regulator is connected with the voltage input end of transformer, and the voltage output end of described transformer is connected with the voltage input end of each utensil branch road respectively;
Alternating voltage inputs to pressure regulator through current foldback circuit, and pressure regulator exports described AC power to transformer, and transformer output high voltage is to each utensil branch road.
3. managing security tools and instruments insulation detection device according to claim 2, is characterized in that, described current foldback circuit comprises:
Gate branch road and output controlling brancher, described gate branch road comprises A.C. contactor and the gate controlled switch of series connection, and described output controlling brancher comprises two protection switches be connected with pressure regulator two input ends respectively;
During work, described gate controlled switch closes, A.C. contactor conducting, and two protection switches close, and described current foldback circuit output AC voltage is to pressure regulator; During enabling, described gate controlled switch disconnects, and A.C. contactor disconnects, and two protection switches disconnect, and described current foldback circuit stops output AC voltage to pressure regulator.
4. managing security tools and instruments insulation detection device according to claim 1, is characterized in that, also comprises in described signal circuit:
Signal circuit power supply and reset switch, described signal circuit power supply one end is connected with one end of described reset switch, the other end is connected with one end of each Signal transmissions branch road, and the other end of described reset switch is connected with the other end of each Signal transmissions branch road by corresponding micro-current relay;
Described each Signal transmissions branch road also comprises:
Auxiliary switch, the two ends of described auxiliary switch connect with the two ends of corresponding micro-current relay respectively, when micro-current relay disconnects, make corresponding Signal transmissions branch road keep conducting by closed described auxiliary switch.
5. managing security tools and instruments insulation detection device according to claim 1, is characterized in that, described warning circuit also comprises:
Warning circuit power supply, described warning circuit power supply one end is connected with one end of each warning branch road, and the warning circuit power supply other end is connected with the other end of each warning branch road;
Each warning branch road also comprises:
Current-limiting resistance, described current-limiting resistance is connected with pilot lamp.
6. managing security tools and instruments insulation detection device according to claim 5, is characterized in that,
Described warning circuit also comprises:
Hummer, each warning branch road all accesses described warning circuit by described hummer; During arbitrary warning branch road conducting, hummer rings;
Each warning branch road also comprises:
Diode, the positive pole of described diode is connected with the positive pole of described warning circuit power supply by corresponding signal relay, and the negative pole of described diode is connected with described hummer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520877090.2U CN205229387U (en) | 2015-11-03 | 2015-11-03 | Insulating detection device of safety tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520877090.2U CN205229387U (en) | 2015-11-03 | 2015-11-03 | Insulating detection device of safety tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205229387U true CN205229387U (en) | 2016-05-11 |
Family
ID=55904444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520877090.2U Active CN205229387U (en) | 2015-11-03 | 2015-11-03 | Insulating detection device of safety tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205229387U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180169A (en) * | 2020-09-28 | 2021-01-05 | 广汽本田汽车有限公司 | Lifting appliance insulation detection device |
| CN112180170A (en) * | 2020-09-28 | 2021-01-05 | 广汽本田汽车有限公司 | Insulation detection method, system and device for lifting appliance and storage medium |
-
2015
- 2015-11-03 CN CN201520877090.2U patent/CN205229387U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180169A (en) * | 2020-09-28 | 2021-01-05 | 广汽本田汽车有限公司 | Lifting appliance insulation detection device |
| CN112180170A (en) * | 2020-09-28 | 2021-01-05 | 广汽本田汽车有限公司 | Insulation detection method, system and device for lifting appliance and storage medium |
| CN112180169B (en) * | 2020-09-28 | 2024-03-19 | 广汽本田汽车有限公司 | Lifting appliance insulation detection device |
| CN112180170B (en) * | 2020-09-28 | 2024-03-22 | 广汽本田汽车有限公司 | Insulation detection method, system and device for lifting appliance and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102608445B (en) | The test of transient voltage protection device | |
| CN102072997B (en) | Spare automatic switching logic test method for checking main transformer mutual switching mode | |
| CN205229387U (en) | Insulating detection device of safety tool | |
| CN203572909U (en) | Single-phase ground fault detection circuit and system | |
| CN104251978B (en) | Straight-flow system exchanges the test device that crosstalk and voltage pulsation influence on relay | |
| CN104330730A (en) | Contactor connecting and breaking test monitoring protection device and operation mode thereof | |
| CN202633675U (en) | Intelligent socket with detection control | |
| CN104111433A (en) | Device for detecting motion performances of earth fault indicator | |
| EP2778694B1 (en) | Apparatus and method for insulation testing of an electrical supply network | |
| CN104459237B (en) | A kind of signal generator for cable identification device | |
| CN204719205U (en) | Isolating switch time-parameters test simulator | |
| CN202956482U (en) | Small current system single-phase grounding fault detection verifying device | |
| CN205210232U (en) | Low pressure intelligence fault detector | |
| CN204649867U (en) | Switch cart detects commissioning device | |
| CN204348191U (en) | Intelligent teaching circuit contact performance tester | |
| CN203825089U (en) | Remote monitoring device of transformer insulating resistance | |
| CN206339637U (en) | A kind of power detecting system | |
| CN104730482B (en) | A kind of portable high-pressure electrification display experimental rig | |
| CN211627693U (en) | Portable automatic phase sequence detection device | |
| CN204269694U (en) | A kind of signal generator for cable identification device | |
| CN210514516U (en) | Self-adjusting device for DC insulation state bridge | |
| CN107681648B (en) | A kind of power of alterating and direct current partition method being shorted test for substation secondary | |
| CN205333704U (en) | Double -phase asymmetric current source of adjustable type of resistance | |
| CN205941814U (en) | Experimental auxiliary device of isolator short circuit making | |
| CN105044519A (en) | On-line identification method for DC interconnection and mixed use of transformer station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |