CN209486232U - A kind of ac voltage withstanding test area safety device - Google Patents
A kind of ac voltage withstanding test area safety device Download PDFInfo
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- CN209486232U CN209486232U CN201822201704.1U CN201822201704U CN209486232U CN 209486232 U CN209486232 U CN 209486232U CN 201822201704 U CN201822201704 U CN 201822201704U CN 209486232 U CN209486232 U CN 209486232U
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- circuit
- door
- protective door
- contactor
- safety protective
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Abstract
The utility model relates to a kind of ac voltage withstanding test area safety devices, including safety protective door and electric control box, sensing device is wherein installed on safety protective door, sensing device is connected with alarm, travel switch is provided on safety protective door, travel switch is connected with testing transformer control cabinet, and electromagnetic lock is equipped on safety protective door, and electromagnetic lock is connected to be controlled by main contactor with main contactor and be opened and closed；Electric control box includes relay circuit, timer loop, inductor circuit, electromagnetic door lock circuit, partial pressure instruction circuit, voltage instruction circuit and electric current instruction circuit totally six circuits, parallel with one another between every circuit；Mechanically and electrically dual interlock function is realized using travel switch power-up magnetic padlock.
Description
Technical field
The utility model belongs to high-voltage electrical apparatus prevention technical field of electric equipment, is related to a kind of ac voltage withstanding test area peace
Full device.
Background technique
High-tension apparatus supplementary insulation safety appliance: the regular communication including insulating glove, insulating boot, insulating bar, electroscope
The electrical insulation strength of pressure test verifying work and transformer insulated oil sample test applied voltage class it is higher (8 ~
60kV), every year into test area test the frequency every year up to 1387 times (tables 1) and test area does not have reliable isolation
The safety devices such as fence, there are operating personnels to be just strayed into trial zone, non-operating personnel in operation or under the non-off-position of equipment
Or guardian is strayed into the security risk of trial zone when equipment test equipment is not powered off or tested for some reason, be easy to cause people
Body electric shock accidents.
1 2015-2017 test number (TN) of table
Utility model content
In order to overcome the disadvantages mentioned above of the prior art, the utility model provides a kind of ac voltage withstanding test area safety dress
Set, it can overcome existing ac voltage withstanding test in existing security risk under the non-power blackout situation of testing equipment, opened using stroke
It closes power-up magnetic padlock and realizes mechanically and electrically dual interlock function, realize when someone carries out the replacement of experimental test product in test area
When, safety door is not shut, can not start pressure-resistant equipment；When carrying out ac voltage withstanding test, which can effectively obstruct personnel's mistake
Enter test area；When non-test personnel can sound an alarm three Xiang Gongneng of sound equipment close to test area in time.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of ac voltage withstanding test area fills safely
It sets, including safety protective door and electric control box, wherein sensing device is installed on safety protective door, sensing device and alarm
Device is connected, and alarm is issued when sensing that someone is close, and travel switch, travel switch and examination are provided on safety protective door
It tests transformer control cabinet to be connected, when safety door is not turned off, travel switch can not be opened in open position, testing transformer control cabinet
It is dynamic, testing transformer Non voltage output；Electromagnetic lock is installed, electromagnetic lock is connected with main contactor and contacted by main on safety protective door
Device control folding, is also equipped with divide-shut brake flashing light on safety protective door；Electric control box includes relay circuit, timer time
Road, inductor circuit, electromagnetic door lock circuit, partial pressure instruction circuit, voltage instruction circuit and electric current indicate circuit totally six circuits,
It is parallel with one another between every circuit；
Wherein relay circuit: pressure regulator, limit switch, stop button, electric current relay respectively with starting contactor, expand
Open up the set series connection of contactor, indicator light three；From pressure regulator, outlet end connects upper indicator light, extends the normally opened touching of contactor
Point is connected between start button and stop button, starting contactor, extension contactor, parallel with one another between indicator light；
Timer loop: the upper timer of normally opened contact series connection series connection of switch, timer is in parallel with buzzer,
Inductor circuit: the upper inductor of normally opened contact series connection of switch, inductor are in parallel with warning device again；
Electromagnetic door lock circuit: it for the upper electromagnetic lock of normally-closed contact series connection of starting contactor, separating brake indicating section: is connect for starting
The upper indicator light of normally-closed contact series connection of tentaculum.
The beneficial effects of the utility model are: (1) realizes mechanically and electrically dual interlock using travel switch power-up magnetic padlock
Function.When pressure test equipment starts, electromagnetic lock locking, safety door can not be opened；When safety door is not turned off, control box cannot be opened
It is dynamic；When fully powered-off, electromagnetic lock unlock, safety door can just be opened equipment；
(2) induction alarm device and red green warning lamp are installed additional, there are personnel close to test area when test, sensing device opens
Dynamic, device beeps immediately and flashing lamp, reminds testing crew someone close to trial zone；Red green warning lamp red warning lamp
Flashing, warning operator's test area have charged, and green warning lamp flashing, test area has powered off, and operator can be into
Enter trial zone；
(3) when carrying out ac voltage withstanding test, all personnel when testing equipment can warn and testing equipment is forbidden to charge
It is strayed into, test area is fully powered-off just to can enter test area, provides reliable safety guarantee for test area.
Detailed description of the invention
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model main circuit schematic diagram；
Fig. 3 is electric control box circuit diagram；
Fig. 4 is flash lamp circuit schematic diagram.
In figure: 1: sensing device GYQ 2: alarm BJQ 3: safety door AQM 4: travel switch SQ 5: electromagnetic lock DCS
6: divide-shut brake flashing light SD 7: voltmeter V 8: start button SB2
9: stop button SB1 10: time switch S 11: timer JSQ 12: pressure regulator TYQ
13: close a floodgate instruction HD1 14: separating brake indicates LD1 15: zero-bit instruction CD 16: power supply instruction HD2 17: ammeter
MA 18: transformer.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to Fig. 1, a kind of ac voltage withstanding test area safety device, including safety protective door and electric control box；
Sensing device GYQ 1 is installed on safety protective door AQM 3, when test there are personnel close to test area, induction dress
The starting of GYQ 1 is set, alarm BJQ 2 beeps immediately.
Travel switch SQ 4 is installed on safety protective door AQM 3, when pressure test to be carried out, if safety protective door
Not in off position, 4 opened point 4,5 of safety door travel switch SQ prevents transformer from starting, only to AQM 3 in normally open position
Safety door travel switch SQ 4 in off position be safety door close in place just can starting transformer, prevent test when personnel be strayed into examination
Test region.
Electromagnetic lock DCS 5 is installed on safety protective door AQM 3, is locked using main contactor auxiliary magnet cutting safe door electromagnetic
5 power supply of DCS, safety door can not be opened by realizing in test, the risk for preventing personnel to be strayed into.
Divide-shut brake flashing light SD 6 is installed to illustrate to try when separating brake flashing lamp SD6 gives a green light on safety protective door AQM 3
Test safe condition at region；When combined floodgate flashing lamp SD6 is bright, illustrate that test area has applied test voltage, all personnel is reminded to prohibit
Only enter test area.
Referring to fig. 2, ammeter mA 17 is installed on electric control box, when applying test voltage to subjects, observation
Testing leakage current, whether Pass Test requires.
It is equipped with start button SB2 8 and stop button SB19 each one on electric control box, play starting and disconnects master
The effect in circuit.
Timer JSQ 11 and time switch S 10 are installed on electric control box, when voltage rises to test voltage, pressed
Lower time switch starts timer, when timer reaches the test determination setting time, issues and reminds sound.
It is equipped with pressure regulator TYQ 12 1 on electric control box, according to subjects difference, rotates pressure regulator TYQ 12
Voltage needed for adjusting.
Combined floodgate indicator light HD1(13 is installed on electric control box) one, start button is pressed, main contactor KM1 is utilized
Auxiliary contact realize closing circuit self-locking function, major loop combined floodgate indicator light HD1(13) bright show circuit is in "on" position.
Separating brake indicator light LD1 14 1 is installed, for showing test control box circuit in separating brake shape on electric control box
State.
Zero-bit indicator light CD 15 1 is installed on electric control box, when CD 15 is lighted, illustrate pressure regulator in zero-bit state,
It can star experimental rig.
Power supply indicator HD2 16 1 are installed on electric control box, when general supply is connected, HD2 16, which is lighted, to be illustrated to control
Ring current is normal.
It is equipped with 7 one pieces of voltmeter V on electric control box, tests added voltage value for showing.
Referring to Fig. 3 and Fig. 4, in actual use, when connecting total power switch QS, power supply instruction HD2(16) lamp is bright, voltmeter
V 7, ammeter mA 17 have power supply instruction, and separating brake indicator light LD1 14 and separating brake flashing lamp SD 6 give a green light, and illustrate electric power loop
Normally；If pressure regulator TYQ 12, in zero-bit, the opened point 3,4 of TYQ 12 is in closed position, the orange lamp of zero-bit indicator light CD 15
It lights, conversely, not working then, coincidence circuit cannot start, and play the role of preventing starting transformer with pressure.
When pressure test to be carried out, if safety door is not in off position, 4 opened point 4,5 of safety door travel switch SQ
In normally open position, prevent transformer from starting, only safety door travel switch SQ 4 is that safety door closes in place just in off position
Can starting transformer, prevent test when personnel be strayed into test area.
When pressure regulator TYQ 12 is in zero-bit, safe door closure state, start button SB2 8 is pressed, main contactor KM1,
Extension contactor KM2 obtains electric actuation, and KM1 auxiliary magnet 3,6 becomes to close by opening, and realizes that closing circuit is self-locking, and major loop, which closes a floodgate, to be indicated
Lamp HD1(13) it is bright, KM1 auxiliary magnet 3,15 is closed by opening change, the starting of test area sensing device, the sense when someone enters test area
It answers alarm to beep, reminds testing crew and other staff that no admittance；KM1 auxiliary magnet 3,18 is become out by closing, and is cut
Disconnected safe door electromagnetic locks 5 power supply of DCS, and safety door can not be opened by realizing in test, the risk for preventing personnel to be strayed into；Extend relay
The contact 24,26 of device KM2 is closed by opening to become, and combined floodgate flashing lamp SD 6 is bright.When voltage rises to test voltage, according to test determination
Time opens timer JSQ 10 and prompting function is arranged, and presses the switch starting timer JSQ 11 of S 10, sets when timer reaches
When setting the time, issues and remind sound.
Major loop be equipped with overcurrent protection, if insulating tool dielectric strength not enough, aging or test in breakdown insulation work
Tool, there is current break in testing transformer 18 at this time, and electric current relay LJ detection current strength reaches setting electric current value, electric current after
Electric appliance LJ closure, the auxiliary magnet 6,7 of closing circuit electric current relay LJ are opened by closing change, and rapid cut-off loop protects pressure test
Instrument.
The utility model is not limited to above embodiment, if various changes or modifications to the utility model do not take off
From the spirit and scope of the present invention, if these changes or modifications belong to the claims and equivalents of the utility model range
Within, then the utility model is also intended to encompass these modification and variations.
Claims (1)
1. a kind of ac voltage withstanding test area safety device, it is characterised in that: including safety protective door and electric control box, wherein
Sensing device is installed on safety protective door, sensing device is connected with alarm, and alarm is issued when sensing that someone is close
Sound is provided with travel switch on safety protective door, and travel switch is connected with testing transformer control cabinet, when safety door is not turned off
When, travel switch can not start in open position, testing transformer control cabinet, testing transformer Non voltage output；Security protection
Electromagnetic lock is installed, electromagnetic lock is connected to be controlled by main contactor with main contactor and be opened and closed, also installs on safety protective door on door
There is divide-shut brake flashing light；Electric control box includes relay circuit, timer loop, inductor circuit, electromagnetic door lock circuit, partial pressure
Indicate circuit, voltage instruction circuit and electric current instruction circuit totally six circuits, it is parallel with one another between every circuit；
Wherein relay circuit: pressure regulator, limit switch, stop button, electric current relay connect with starting contactor, extension respectively
The set series connection of tentaculum, indicator light three；From pressure regulator, outlet end connects upper indicator light, and the normally opened contact for extending contactor connects
It is connected between start button and stop button, it is starting contactor, extension contactor, parallel with one another between indicator light；
Timer loop: the upper timer of normally opened contact series connection series connection of switch, timer is in parallel with buzzer,
Inductor circuit: the upper inductor of normally opened contact series connection of switch, inductor are in parallel with warning device again；
Electromagnetic door lock circuit: for the upper electromagnetic lock of normally-closed contact series connection of starting contactor, separating brake indicating section: for starting contactor
Normally-closed contact connect upper indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822201704.1U CN209486232U (en) | 2018-12-26 | 2018-12-26 | A kind of ac voltage withstanding test area safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822201704.1U CN209486232U (en) | 2018-12-26 | 2018-12-26 | A kind of ac voltage withstanding test area safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209486232U true CN209486232U (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822201704.1U Active CN209486232U (en) | 2018-12-26 | 2018-12-26 | A kind of ac voltage withstanding test area safety device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751606A (en) * | 2020-05-21 | 2020-10-09 | 国家电网有限公司技术学院分公司 | Intelligent power regulation and control box and regulation and control method |
| CN111983396A (en) * | 2020-07-16 | 2020-11-24 | 中广核核电运营有限公司 | Electric high-voltage test area safety protection system |
| CN113470286A (en) * | 2021-06-21 | 2021-10-01 | 广东韶钢松山股份有限公司 | Safety warning device and safety warning method |
| CN114639195A (en) * | 2022-03-23 | 2022-06-17 | 山东省产品质量检验研究院 | Large capacity detects uses access control system |
-
2018
- 2018-12-26 CN CN201822201704.1U patent/CN209486232U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751606A (en) * | 2020-05-21 | 2020-10-09 | 国家电网有限公司技术学院分公司 | Intelligent power regulation and control box and regulation and control method |
| CN111751606B (en) * | 2020-05-21 | 2023-10-24 | 国家电网有限公司技术学院分公司 | Intelligent power supply regulation and control box and regulation and control method |
| CN111983396A (en) * | 2020-07-16 | 2020-11-24 | 中广核核电运营有限公司 | Electric high-voltage test area safety protection system |
| CN111983396B (en) * | 2020-07-16 | 2023-06-13 | 中广核核电运营有限公司 | Safety protection system for electric high-voltage test area |
| CN113470286A (en) * | 2021-06-21 | 2021-10-01 | 广东韶钢松山股份有限公司 | Safety warning device and safety warning method |
| CN114639195A (en) * | 2022-03-23 | 2022-06-17 | 山东省产品质量检验研究院 | Large capacity detects uses access control system |
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