CN211453845U - Device for testing voltage-resistant and insulating properties of multi-path insulating gloves and insulating boots - Google Patents
Device for testing voltage-resistant and insulating properties of multi-path insulating gloves and insulating boots Download PDFInfo
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- CN211453845U CN211453845U CN201921968698.0U CN201921968698U CN211453845U CN 211453845 U CN211453845 U CN 211453845U CN 201921968698 U CN201921968698 U CN 201921968698U CN 211453845 U CN211453845 U CN 211453845U
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Abstract
The utility model relates to a device for testing the voltage-resistant and insulating properties of a plurality of paths of insulating gloves and insulating boots, which belongs to the technical field of insulating wearable equipment detection and comprises a water tank, steel balls, a plurality of testing branches and a voltage regulator; the water tank is filled with water or sponge full of water; each test branch comprises a step-up transformer; the input terminal of each test branch is connected with the primary side wiring terminal of the boosting transformer through a first relay and an overcurrent relay in sequence; one secondary side terminal of each step-up transformer is grounded through an alternating current-direct current digital ammeter; the other secondary side terminal of each step-up transformer is connected with an inner electrode of an insulating glove or an insulating boot; the 220V alternating current power supply terminal is connected with a primary side wiring terminal of the voltage regulator through the air switch and the contactor in sequence, and a secondary side wiring terminal of the voltage regulator is connected with the first relay; and a secondary side wiring terminal of the voltage regulator is connected with an alternating current-direct current digital voltmeter.
Description
Technical Field
The utility model belongs to the technical field of insulating wearing equipment detects, concretely relates to multichannel insulating gloves and insulating boot voltage insulation capability test device.
Background
As is well known, insulating gloves and insulating boots are the supplementary safety apparatus when electrician's operation in the aspect of the high voltage power equipment, at present, in order to guarantee operator's personal safety, need carry out performance detection to insulating gloves and insulating boots, live working articles for use manufacturing enterprise and live working user, insulating boots or insulating gloves's mass measurement adopts two kinds of modes more:
(1) when a certain tested object is punctured, other tested objects need to be repeatedly measured, and the punctured tested object is difficult to find, so that the efficiency is low and the labor intensity is high. The leakage current is the total current of a plurality of parallel-connected devices, and the leakage current of each device cannot be objectively displayed.
(2) A plurality of test devices can be tested simultaneously, and can be powered off singly, and the method of cutting off high voltage is adopted, so that interference is easy to occur when the voltage is more than 25KV, and the work is unreliable.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the technical problem who exists among the known art, provide a multichannel insulating gloves and insulating boot voltage insulation capability test device, can carry out the voltage insulation of safety simultaneously to a plurality of insulating gloves and insulating boot and detect, every detects independent each other between the branch road, mutual noninterference.
The utility model discloses can be to insulating boots, insulating gloves test interchange and direct current withstand voltage.
The utility model aims at providing an alternating current-direct current dual-purpose multichannel insulating gloves and insulating boot voltage insulation capability test device includes at least:
a water tank carrying insulating gloves and/or boots; the water tank is filled with water or sponge full of water;
a steel ball arranged in the water in the insulating glove or the insulating boot;
a plurality of independent test branches; each test branch comprises a step-up transformer; the input terminal of each test branch is connected with the primary side wiring terminal of the boosting transformer through a first relay and an overcurrent relay in sequence; one connecting terminal at the secondary side of each step-up transformer is grounded through an alternating current-direct current digital ammeter; the other connecting terminal of the secondary side of each step-up transformer is connected with an inner electrode of an insulating glove or an insulating boot;
the 220V alternating current commercial power is connected to the primary side of the boosting transformer after being converted into voltage by the voltage regulator; wherein:
the 220V alternating current power supply terminal is connected with a primary side wiring terminal of the voltage regulator sequentially through the air switch and the contactor, and a secondary side wiring terminal of the voltage regulator is connected with the normally open contact of the first relay; a secondary side wiring terminal of the voltage regulator is connected with an alternating current-direct current digital voltmeter;
and the first relay is respectively connected with the starting relay, the alternating current-direct current digital ammeter, the normally closed point of the second relay and the normally closed point of the current relay.
Further, the water tank is made of stainless steel materials, and the water tank is grounded.
Further, the first relay comprises a first indicator light for displaying the working state of the first relay.
Still further, the digital ammeter further comprises a second indicator light for displaying the working state of the digital ammeter.
Furthermore, the device also comprises a rack, wherein an insulating rod is arranged on the rack, and an insulating rope with an insulating clamp is lapped on the insulating rod.
Still further, the time relay that still includes with the contactor paralleling.
Furthermore, when a direct current test is carried out, a high-voltage silicon stack is connected between a secondary connecting terminal of the step-up transformer and an inner electrode of an insulating glove or an insulating boot in series.
The utility model has the advantages and positive effects that:
through adopting the technical scheme, the utility model discloses can the alternating current-direct current dual-purpose, to below the alternating current 50kV and during the below scope insulation test of direct current 90kV reliable operation, adopt many with parameter step up transformer for each way power supply, when the tested object surpasses the leakage current of setting for or punctures, can break off the step up transformer primary side power of its place branch road rapidly, other each way continue to measure when not arriving the time, guaranteed measuring reliability, saved workman's working time, improved work efficiency. During direct current testing, the high-voltage silicon stack is connected in series in the high-voltage branch, and parameters of the alternating current-direct current digital ammeter and the alternating current-direct current digital voltmeter are set, so that the direct current testing device is convenient and practical.
Drawings
FIG. 1 is a main circuit diagram of the preferred embodiment of the present invention;
FIG. 2 is a first portion of a control circuit diagram according to a preferred embodiment of the present invention;
FIG. 3 is a second portion of a control circuit diagram according to a preferred embodiment of the present invention;
FIG. 4 is a circuit diagram of a power supply portion of the preferred embodiment of the present invention;
FIG. 5 is a schematic view showing the appearance of the electrical control cabinet and the water tank when testing the high-voltage insulating boot according to the preferred embodiment of the present invention;
FIG. 6 is a schematic view showing the appearance of the electrical control cabinet and the water tank when testing the high-voltage insulating gloves according to the preferred embodiment of the present invention;
fig. 7 is a circuit operation area plane layout diagram according to the preferred embodiment of the present invention.
Detailed Description
For further understanding of the contents, features and functions of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings as follows:
referring to fig. 1 to 7, a device for testing the voltage resistance and insulation performance of a multi-path insulating glove and an insulating boot includes:
a water tank 8 carrying insulating gloves and/or insulating boots; the water tank is loaded with tap water 9 or sponge 13 full of water;
steel balls arranged in water and/or the insulating boot of the insulating glove;
a plurality of independent test branches; each test branch comprises a step-up transformer (T1-T6 in the figure); the input terminal of each test branch is connected with the primary side wiring terminal of the boosting transformer through a first relay and an overcurrent relay in sequence; one secondary side connection terminal of each step-up transformer is grounded through an alternating current-direct current digital ammeter 2 (PA 1-PA6 in the figure); the other connecting terminal of the secondary side of each second step-up transformer is connected with an inner electrode of an insulating glove 7 or an insulating boot 11;
the 220V alternating current commercial power is connected to the primary stage of the booster transformer through the voltage regulator; wherein:
the 220V alternating-current power supply terminal is connected with a primary side connection terminal of the voltage regulator sequentially through the air switch QF and the contactor KM, and a secondary side connection terminal of the voltage regulator is connected with the first relay; and a secondary side connection terminal of the voltage regulator T7 is connected with an AC/DC digital voltmeter PV 1.
Preferably, the method comprises the following steps: the water tank is made of stainless steel materials and is grounded.
The relay further includes a first indicator lamp 3 (H1 to H6 in the drawing) for displaying an operating state of the first relay.
And a second indicator lamp 4 (H7-H12 in the figure) for displaying the working state of the alternating current and direct current digital ammeter.
The device is characterized by further comprising a rack 1, wherein an insulating rod 5 is arranged on the rack, and an insulating rope 6 with an insulating clamp is lapped on the insulating rod.
And the device also comprises a time relay KT connected with the contactor in parallel.
In the preferred embodiment, a voltage regulator T7 is used to tune the primary voltage of each branch step-up transformer, and since the parameters of each step-up transformer are the same, the secondary of each step-up transformer obtains the same high voltage and supplies the same high voltage to each path of tested products; if the current of a certain path is larger than the set value of the current relay, the primary of the branch transformer is disconnected, and other paths continue to be measured.
Fig. 1 illustrates a 6-branch detection circuit with six insulation shoes.
In fig. 1, L, N is an ac 220V incoming line, QF is an air switch, KM is a contactor, and T7 is a voltage regulator. PV1 is a digital voltmeter, which can display the actual value of the high voltage of the step-up transformer by setting the proportionality coefficient, zero point and range in the ac/dc digital voltmeter, here, taking the first path as an example, KJ1 is the first relay, KA1 is the overcurrent relay, T1 is the step-up transformer, PA1 is the ac/dc digital ammeter, and E is the ground. The high-voltage electrode zero line is grounded and is communicated with the sponge which is filled with water in the water tank, the maximum allowable leakage current value is set by the digital ammeter PA1, when the current value exceeds the set current value in the test process, the relay in the digital ammeter PA1 acts, when the relay breaks down, the overcurrent relay KA1 acts, and the reaction speed of the overcurrent relay KA1 is higher than that of the digital ammeter PA 1. And the fast power-off can be ensured during breakdown.
The working process is shown in fig. 2 to 6: SB1 is stop button, SB2 is start button, SQ1 is micro switch, when the rotary handle of the voltage regulator T7 is turned to the end counterclockwise SQ1 moves. KM is a contactor, KT is a time relay.
The working principle is as follows:
1. before operation, it is checked whether proximity switch SQ2 is active and must be active to enter operating zone 1 for operation.
The method comprises the following steps: the safety gear lever is put down, the proximity switch SQ2 is switched on, and the right hand adjusts the voltage regulating knob to the minimum voltage position counterclockwise. The starting switch SB2 is pressed by the left hand, and the contactor KM is attracted. Lifting the safety lever contactor releases, indicating that the proximity switch is functioning.
2. Checking whether the air switch QF is pulled down, and confirming that the switch QF is pulled down.
3. And (3) entering an operation area 1, putting the electrode wire into the insulating boots, and pouring the steel balls into six insulating boots respectively.
4. And (3) withdrawing from the operation area 1, lowering the door rod to switch on the proximity switch SQ2, reaching the operation area 2, closing the air switch QF, rotating the pressure regulator handle to the minimum by the right hand in a counter-clockwise manner, touching the microswitch SQ1 by the pressure regulator handle movable rod at the moment, closing the SQ1, pressing the starting button SB2 by the left hand, and sucking and self-locking the coil of the contactor KM. Meanwhile, the contact points K7 and K8 are instantly closed by inching, the handle of the voltage regulator is adjusted clockwise to boost the voltage at the speed of 1000V per second, when the voltage reaches 75% of the required voltage, the voltage is boosted to the required voltage value at the speed of 100V, KJ1-KJ6 in the figure 3 is attracted and self-locked H1-H6 is turned on and off, the required voltage is kept for a certain time according to a test standard, if the breakdown of a certain path or the leakage current is greater than the set leakage current, the street lamp is on, for example, the first path, an overcurrent relay KA1 or a digital ammeter PA1-2 acts, the KJ1 releases H1 to light, a time relay KT lasts for the time, an audible and visual alarm is given, and the rotary handle is adjusted anticlockwise to enable the voltage to be minimum. Pressing stop button SB1 releases contactor KM.
The power supply of fig. 3 uses a 12V dc power supply, as shown in fig. 4: the device consists of a charger, a diode, a safety device and a storage battery, ensures that an indicator lamp can be continuously lightened when the power is cut off, and is convenient for an operator to find out unqualified tested products.
FIG. 5 is a schematic view of an insulating glove: wherein: the label 1 is a frame; 2 is PA1-PA6 digital ammeter; 3 is H1-H6 indicator light, 4 is H7-H12 indicator light; 5 is an insulating rod; 6 is an insulating rope with an insulating clamp for hanging insulating gloves; 7 is an insulating glove; 8 is a stainless steel water tank; the water is discharged and communicated with a high pressure ground; 9 is tap water; 10 is a high voltage electrode; 11 is an insulating boot; 12 steel balls and inner electrodes are put in the insulating boot; 13 is a sponge filled with water.
When insulators with different insulation voltage grades are measured, the requirements for leakage current are different, in the preferred embodiment, an alternating current and direct current digital ammeter with RS485 communication is adopted, the upper limit of a relay in the PA1-PA6 alternating current and direct current digital ammeter can be conveniently adjusted through a touch screen, and alternating current and direct current can be set.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a withstand voltage insulating properties testing arrangement of multichannel insulating gloves and insulating boot which characterized in that includes at least:
a water tank carrying insulating gloves and/or boots; the water tank is filled with water or sponge full of water;
a steel ball arranged in the water in the insulating glove or the insulating boot;
a plurality of independent test branches; each test branch comprises a step-up transformer; the input terminal of each test branch is connected with the primary side wiring terminal of the boosting transformer through a first relay and an overcurrent relay in sequence; one connecting terminal at the secondary side of each step-up transformer is grounded through an alternating current-direct current digital ammeter; the other connecting terminal of the secondary side of each step-up transformer is connected with an inner electrode of an insulating glove or an insulating boot;
the 220V alternating current commercial power is connected to the primary side of the boosting transformer after being converted into voltage by the voltage regulator; wherein:
the 220V alternating current power supply terminal is connected with a primary side wiring terminal of the voltage regulator sequentially through the air switch and the contactor, and a secondary side wiring terminal of the voltage regulator is connected with the normally open contact of the first relay; a secondary side wiring terminal of the voltage regulator is connected with an alternating current-direct current digital voltmeter;
and the first relay is respectively connected with the starting relay, the alternating current-direct current digital ammeter, the normally closed point of the second relay and the normally closed point of the current relay.
2. The multiple-insulation glove and insulation boot voltage withstand insulation performance testing device according to claim 1, wherein the water tank is made of stainless steel material, and the water tank is grounded.
3. The multiple insulating gloves and insulating boots voltage withstand insulation capability test device of claim 1 or 2, further comprising a first indicator light for indicating the operating status of the first relay.
4. The multiple insulation glove and insulation boot voltage withstand insulation performance testing device according to claim 3, further comprising a second indicator light for displaying the working state of the digital ammeter.
5. The device for testing the voltage-resistant and insulating properties of the multipath insulating gloves and insulating boots according to claim 4, further comprising a frame, wherein an insulating rod is arranged on the frame, and an insulating rope with an insulating clamp is lapped on the insulating rod.
6. The multiplexed insulating glove and insulating boot voltage withstand insulation performance test apparatus according to claim 5, further comprising a time relay connected in parallel with the contactor.
7. The device for testing the voltage-withstand insulation performance of the multi-path insulating gloves and the insulating shoes according to claim 6, wherein a high-voltage silicon stack is connected in series between the secondary terminal of the step-up transformer and the inner electrode of the insulating gloves or the insulating shoes during the DC test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921968698.0U CN211453845U (en) | 2019-11-14 | 2019-11-14 | Device for testing voltage-resistant and insulating properties of multi-path insulating gloves and insulating boots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921968698.0U CN211453845U (en) | 2019-11-14 | 2019-11-14 | Device for testing voltage-resistant and insulating properties of multi-path insulating gloves and insulating boots |
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| CN211453845U true CN211453845U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921968698.0U Active CN211453845U (en) | 2019-11-14 | 2019-11-14 | Device for testing voltage-resistant and insulating properties of multi-path insulating gloves and insulating boots |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110687418A (en) * | 2019-11-14 | 2020-01-14 | 天津双安劳保橡胶有限公司 | Device for testing voltage-resistant and insulating properties of multi-path insulating gloves and insulating boots |
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2019
- 2019-11-14 CN CN201921968698.0U patent/CN211453845U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110687418A (en) * | 2019-11-14 | 2020-01-14 | 天津双安劳保橡胶有限公司 | Device for testing voltage-resistant and insulating properties of multi-path insulating gloves and insulating boots |
| CN110687418B (en) * | 2019-11-14 | 2024-06-28 | 天津双安劳保橡胶有限公司 | Multi-path insulating glove and insulating boot pressure-resistant insulating performance testing device |
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