CN211955711U - Auxiliary device for insulation measurement of star-delta starting motor - Google Patents
Auxiliary device for insulation measurement of star-delta starting motor Download PDFInfo
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- CN211955711U CN211955711U CN202020343590.9U CN202020343590U CN211955711U CN 211955711 U CN211955711 U CN 211955711U CN 202020343590 U CN202020343590 U CN 202020343590U CN 211955711 U CN211955711 U CN 211955711U
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- module
- air switch
- star
- auxiliary device
- measurement
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- 238000005259 measurement Methods 0.000 title claims abstract description 35
- 238000009413 insulation Methods 0.000 title claims abstract description 19
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 20
- 230000006698 induction Effects 0.000 claims abstract description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 7
- 238000004804 winding Methods 0.000 abstract description 10
- 230000002265 prevention Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000007935 neutral effect Effects 0.000 description 6
- 241000270722 Crocodylidae Species 0.000 description 5
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000011326 mechanical measurement Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model provides an auxiliary device for insulation measurement of a star-delta starting motor, which comprises a shell, wherein an air switch is arranged in the shell, a three-phase measuring lead is connected on the air switch, a winding roll is arranged between the three-phase measuring lead and the air switch, the other end of the air switch is connected with a discharge resistor, one end of the discharge resistor is connected with an earth wire plug, a multifunctional module is also arranged in the shell, the multifunctional module comprises a lithium battery pack, a near-electricity alarm is connected on the lithium battery pack, a spiral spring induction antenna is arranged on the near-electricity alarm, a GPS positioning module, a Bluetooth type forgetting prevention module, a voice module and the like are also connected on the lithium battery pack, the utility model is a novel measuring tool which is free of wire disassembly, has no spark discharge, near-electricity early warning and positioning, and has auxiliary functions of anti-forgetting and the like, the structure is novel, the, and the personal safety of measuring personnel can be effectively ensured, and the safety production is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of the electric power safety inspection, concretely relates to an auxiliary device for star triangle starter motor insulation measurement.
Background
When the star-delta starting motor stops running, the star-shaped neutral point contactor is normally in an open state, when the insulation of the motor is measured, the ground insulation of three-phase windings (W1-W2, V1-V2 and U1-U2) can be measured only in a junction box or a control box, and the insulation of the three-phase windings is disconnected due to the neutral point contactor, so that the direct measurement cannot be carried out. If the insulation of each phase to the ground needs to be measured, the neutral point contactor needs to be pressed by hands, the contact of the neutral point contactor is closed, the three phases on the other side of the neutral point contactor are in short circuit, a finished star-shaped circuit is formed, and measurement can be performed. The disadvantages of this are:
1. if the mechanical force required by the neutral point contactor is large, the contact may be in poor contact, so that the measured data is inaccurate;
2. when the motor is operated by two hands, one end of the measuring lead needs to be fixed on the motor wiring terminal for multiple times, so that the measuring time is wasted due to the repeated disassembly, and the working efficiency is reduced;
3. before and after the insulation of the equipment measurement, electric sparks are generated when discharging. If the tested equipment is positioned in flammable and explosive areas such as hydrogen, ammonia and the like, fire and explosion can be caused, and great potential safety hazards exist. In addition, if the operation of a worker is illegal, the electricity of the measured equipment is not tested, and the electric shock can cause casualties;
4. after the measurement is finished, if the short-circuit line is forgotten to be taken down on the equipment, the equipment is started to cause the occurrence of short-circuit accidents.
Disclosure of Invention
The utility model aims at overcoming the not enough of above-mentioned prior art, provide an auxiliary device that is used for star triangle starter motor insulation measurement with new-type structure.
The utility model discloses a following technical scheme realizes: the utility model provides an auxiliary device for star triangle starter motor insulation measurement, which comprises a housin, characteristics are, be equipped with air switch in the casing, connect the three-phase and measure the lead wire on the air switch, be equipped with the take-up reel between three-phase measurement lead wire and the air switch, air switch's the other end is connected with discharge resistance, discharge resistance one end is connected with the plug that can be connected with the earth connection, still be equipped with multifunctional module in the casing, multifunctional module includes lithium cell group, be connected with nearly electric alarm on lithium cell group, be equipped with spiral spring induction antenna on nearly electric alarm, still be connected with GPS orientation module on lithium cell group, utilize GPS orientation module can realize remote control.
Furthermore, a shunt release is arranged on the air switch, and the GPS positioning module is correspondingly connected with the shunt release through a remote signal contact.
Further, still including the bluetooth formula in the multifunctional module and prevent forgetting the module, the bluetooth formula is prevented forgetting the module and is passed through the wire and be connected with lithium cell group.
Furthermore, the multifunctional module further comprises a voice module, and the voice module is connected with the lithium battery pack through a wire.
The design idea of the utility model is to develop a novel measuring tool which is free from wire disconnection, has no spark discharge, has near-electricity early warning and positioning and has other auxiliary functions of anti-missing and the like, and according to the invention, the technical scheme adopts a novel structure that a mechanical measuring circuit part is provided with a multifunctional module part. In the mechanical measurement circuit part, adopt the structure of connecting the three-phase and measuring the lead wire, the discharge resistance is connected to the other end on air switch in one end, air switch divides the deciliter simple, takes arc control device certainly, can frequently operate and exempt from the tear open line, and impulse-resistant voltage > 8kV can install the shunt release additional moreover, is convenient for carry out remote control. The multifunctional module is provided with a near-electricity alarm, so that before measurement, if the equipment is not powered off and a lead is close to the equipment to sense or detect voltage, early warning can be given in advance to remind workers of safety, and a plurality of protective barriers can be provided for measurement; utilize GPS orientation module can realize remote monitoring, measuring device position, in time master the operation process, managers can set up the function through GPS fence, check measuring device activity range and fix a position, operating personnel carrying devices business turn over fence scope all can report to the police to the administrator in the distant place, when finding operating personnel is violating the rules, managers accessible GPS orientation module implements the distant place outage function, cut off air switch, simultaneously audio alert, and remind operating personnel to pull down measuring device, prevent that the device from being forgotten the scene, prevent the emergence of maloperation. The Bluetooth forgetting prevention module also has an alarm function, and an operator can send alarm information far away from a 15-50m mobile phone of the device on a working site to remind the operator, so that accidents caused by forgetting the device on measuring equipment are prevented.
Compared with the prior art, the utility model discloses novel structure, easy operation, insulation measurement time reduces by a wide margin, has saved a large amount of time, has improved work efficiency to can be tangible effectual assurance survey crew's personal safety, guarantee safety in production greatly improves economic benefits.
The present invention will be explained in detail with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2-schematic of the circuit of the present invention (partial circuit).
The drawings illustrate:
the utility model provides a closed crocodile presss from both sides, 2 three-phase measurement lead wires, 3 air switch, 4 discharge resistance, 5 plugs, 6 earth connection, 7 nearly electric alarms, 8 lithium cell group, 9 voice module, 10 bluetooth formula forgetting prevention module, 11 auxiliary relay, 12 GPS orientation module, 13 spiral spring induction antenna, 14 take-up reels, 15 casings, 16 shunt release, 17 teletransmission signal contact.
Detailed Description
Referring to fig. 1, the utility model discloses an auxiliary device for star triangle starter motor insulation measurement, including a casing 15, dispose mechanical measurement circuit and multifunctional module in the casing 15. The mechanical measurement circuit part comprises an air switch 3, one end of the air switch 3 is connected with a three-phase measurement lead 2, the front end of the three-phase measurement lead 2 is a fully-closed crocodile clip 1, the fully-closed crocodile clip can almost adapt to all equipment, the wiring is firm, the fixation is easy, the falling is not easy, and the fully-closed crocodile clip 1 extends out of the shell 15; a winding roll 14 is arranged between the three-phase measuring lead 2 and the air switch 3, the winding roll 14 is arranged for lengthening the length of the measuring lead, during measurement, the measuring wire with corresponding length is drawn out from the winding roll 14 according to the measuring distance, the winding roll also has a positioning function, when the drawing is stopped, the measuring lead can be clamped automatically, after the measurement is finished, the lead is slightly drawn outwards, and the lead is automatically contracted into the winding roll, so that the carrying is convenient; the other end of the air switch 3 is connected with a discharge resistor 4, the discharge resistor 4 can adopt a resistance value of 1k omega, the discharge resistor 4 is connected with a plug 5, and the front end of the plug 5 can also adopt a multifunctional totally-closed crocodile clip 1 so as to be conveniently connected with a grounding wire 6.
The multifunctional module in the shell 15 comprises a lithium battery pack 8, and according to the conventional principle, a voltage reduction module is attached to the lithium battery pack 8, generally, a 24V to 3V voltage reduction module is selected, the current output is 3A, the power consumption is low, the heating value is low, the use is safe, and the requirements of a plurality of module power supplies can be met; the lithium battery pack 8 is connected with the near-electricity alarm 7, the near-electricity alarm 7 is provided with a spiral spring induction antenna 13, and the near-electricity alarm 7 can emit light and buzz to alarm when voltage is induced or detected; the lithium battery pack 8 is also connected with a GPS positioning module 12 which is mainly used for remotely monitoring the position of the measuring device, mastering the operation process in time and reminding in time so as to prevent misoperation; can also set up bluetooth formula and prevent forgetting module 10 and voice module 9 in multifunctional module, bluetooth formula prevents forgetting module 10 and voice module 9 and is connected with lithium cell group 8 through the wire respectively, sets up bluetooth formula and prevents forgetting module 10 and can be after work finishes, monitors and prevents that the measuring wire from forgetting on field device to prevent that the short circuit fault takes place after equipment opens, sets up voice module 9 and is used for the supplementary warning and reminding. The GPS positioning module 12 can be connected with a remote control end, such as a mobile phone of a manager, so as to realize remote control, and the GPS positioning module is used for monitoring and controlling the manager at a remote end, so as to ensure the safety of the manager and equipment.
In order to facilitate operation and control, a shunt release 16 can be further arranged on the air switch 3, as shown in fig. 2, the shunt release 16 is connected with the lithium battery pack 8 through a lead, the GPS positioning module 12 is correspondingly connected with the shunt release 16 through a remote signal contact 17, and an intermediate relay 11 with a buzzer and a flashing signal lamp is arranged for alarming.
Nearly electric alarm and bluetooth formula in this device prevent forgetting the module and all can utilize to have the commodity preparation, for example, nearly electric alarm can adopt repacking preparation such as nearly electric precaution device in having the safety helmet, bluetooth formula prevents forgetting the module and can adopt preparation such as intelligent anti-lost device.
The working principle is briefly described.
And (3) near-electricity early warning: when the insulation measurement of the planetary triangular starting motor is carried out, if the equipment is not powered off before measurement, the spiral spring induction antenna 13 on the electricity-approaching alarm 7 can give an early warning when approaching the distance of 40-50 cm of the electrified equipment, a buzzing alarm sends continuous long-time sound, and a warning lamp flickers to indicate that the tested equipment is electrified, so that the operation is warned to an operator, the operation is stopped, and the reason is found.
Measurement and discharge: and (3) extracting the three-phase measuring lead 2 from the winding roll 14, connecting the three-phase measuring lead to the lower part of the star-shaped contactor of the motor, closing the air switch 3 to short-circuit the three phases of the three-phase measuring lead, and measuring the insulation of the motor through a megohmmeter.
After the measurement is finished, the discharge resistor 4 is connected in series through the discharge switch, the elastic plug 5 is connected with the grounding wire 6, the air switch 3 is switched on, the direct earth discharge is realized, the working personnel do not need to frequently switch the wiring, the measurement time is saved, and the working efficiency is improved. The discharging mode realizes no spark generation in the discharging process, and can greatly improve equipment and personal safety and avoid serious accidents such as fire, explosion and the like in places where power generation enterprises have flammable and explosive (hydrogen, ammonia and the like).
After the measurement is finished, the lead is slightly pulled outwards, and the lead is automatically retracted into the winding roll of the device.
After the measurement is finished, if the device is forgotten on the measured equipment, when an operator is far away from the device by 15-50m, the Bluetooth type forgetting prevention module 10 can give an alarm to the mobile phone of the operator through Bluetooth, prompt the operator to check, detach the measuring device and prevent the measurement lead from being left on the site.
The manager can query the device location remotely using a GPS location module. The range (300 m at most) of the GPS electronic fence entering and exiting the measurement site is set, when an operator carries the device, the alarm can be given, the position of the equipment can be inquired in real time (the positioning error is less than 10 m), and the operation condition can be known in time. Referring to fig. 2, when the manager finds that the device is abnormal or the device is in the set fence range for a long time, it is determined that the operator does not detach the measuring device, the device air switch 3 can be turned off through the mobile phone remote control (GPS remote transmission signal contact 17) shunt release 16, and the intermediate relay 11 is started to emit buzzing and flashing signal light alarm at the same time until the manager releases the GPS remote transmission signal, the air switch 3 can be turned on, the operator can continue to operate, and the safety of the operator and the device is guaranteed.
The voice module 9 can preset multi-channel voice auxiliary functions, can play various operation steps and operation cautions, can enable an operator to master the operation method of the device skillfully, and can trigger voice alarm through the relay 11 and the GPS positioning module 12.
In addition, the shell of the device can be provided with a lighting lamp to ensure the use in dark places.
Claims (4)
1. The utility model provides an auxiliary device for star triangle start motor insulation measurement, which comprises a housin (15), characterized by, be equipped with air switch (3) in casing (15), connect three-phase measurement lead wire (2) on air switch (3), be equipped with take-up reel (14) between three-phase measurement lead wire (2) and air switch (3), the other end of air switch (3) is connected with discharge resistance (4), discharge resistance (4) one end is connected with plug (5) that can be connected with earth connection (6), still be equipped with multifunctional module in casing (15), multifunctional module includes lithium cell group (8), be connected with nearly electric alarm (7) on lithium cell group (8), be equipped with spiral spring induction antenna (13) on nearly electric alarm (7), still be connected with GPS orientation module (12) on lithium cell group (8).
2. The auxiliary device for insulation measurement of the star-delta starting motor according to claim 1, wherein a shunt release (16) is arranged on the air switch (3), and the GPS positioning module (12) is correspondingly connected with the shunt release (16) through a remote signal contact.
3. The auxiliary device for insulation measurement of the star-delta starting motor according to claim 1, wherein the multifunctional module further comprises a bluetooth anti-forgetting module (10), and the bluetooth anti-forgetting module (10) is connected with the lithium battery pack (8) through a wire.
4. The auxiliary device for insulation measurement of the star-delta starting motor according to claim 1, wherein the multifunctional module further comprises a voice module (9), and the voice module (9) is connected with the lithium battery pack (8) through a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020343590.9U CN211955711U (en) | 2020-03-18 | 2020-03-18 | Auxiliary device for insulation measurement of star-delta starting motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020343590.9U CN211955711U (en) | 2020-03-18 | 2020-03-18 | Auxiliary device for insulation measurement of star-delta starting motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211955711U true CN211955711U (en) | 2020-11-17 |
Family
ID=73180156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020343590.9U Expired - Fee Related CN211955711U (en) | 2020-03-18 | 2020-03-18 | Auxiliary device for insulation measurement of star-delta starting motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211955711U (en) |
-
2020
- 2020-03-18 CN CN202020343590.9U patent/CN211955711U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201117 |