CN2884220Y - Device for checking electric relay - Google Patents
Device for checking electric relay Download PDFInfo
- Publication number
- CN2884220Y CN2884220Y CN 200520047028 CN200520047028U CN2884220Y CN 2884220 Y CN2884220 Y CN 2884220Y CN 200520047028 CN200520047028 CN 200520047028 CN 200520047028 U CN200520047028 U CN 200520047028U CN 2884220 Y CN2884220 Y CN 2884220Y
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- relay
- wave band
- switch
- time
- power supply
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Abstract
The utility model relates to a relay loop calibration device, in particular to a calibration device which can simultaneously perform the calibration of single relay and a plurality of relays and accurately test the contact resistance, aimed at the technical problem that the prior relay cannot perform the calibration. To settle the hidden trouble, the utility model adopts the technical proposal that: the power supply of the relay circuit calibration device is connected with the main power switch and passes through fuse, the 220V alternating current power supply is outputted and then passes through a voltage regulation device and a voltage reduction isolation transformer, the 110V alternating current power supply is obtained and then is rectified by bridge pattern rectifier circuit, so the 110V direct current power supply is obtained. The output terminal of the bridge pattern rectifier circuit is connected with a preceding stage rotary wave band transfer switch which is connected with the wire wrap of the relay to be calibrated, if the relay to be calibrated is a time relay, the contact point of the time relay is connected into K4 rear stage rotary wave band transfer switch loop, and the rear stage rotary wave band transfer switch is connected with an electronic stopwatch so as to calibrate the counting time of the time relay. The utility model is mainly applied for the performance test of the relay.
Description
Technical field: the utility model relates to the relay circuit calibration equipment, especially can carry out the relay calibration equipment that verification and docking point resistance are tested exactly simultaneously at single relay and a plurality of relay.
Background technology: the unit interlock protection device and the field control loop of power plant all use various types of relays to realize the control and the protection in loop at present, and the specification kind differs, and quantity is also very huge.And these relays are not checked at ordinary times, also have no idea to detect and judge its performance in annual overhaul, only judge simply just whether relay moves when the unit protection loop is debugged, and the field control loop does not have method to go to detect especially.So in a single day important equipment break down, and relay is failure to actuate during with on-line operation, time relay actuation time is incorrect and contact resistance increases and causes that the loop action is undesired and the most see more.If relay is failure to actuate in the control loop at the scene, can cause the normally start and stop of pump, blower fan and motor, in interlock protection device, will directly cause shutdown or load down, so production and safe operation are had the greatest impact in case break down.If because a slight carelessness causes shutting down, user's unit-economy benefit will be taken a bath, and power plant is used in the big and small relay in each place, just as many time bombs, the time of usefulness is long more, and the probability that breaks down is big more.So, will how to solve this type of hidden danger? when relay is overhauled, we find all kinds of relays since frequent movement and service time permanent after, it is insensitive that coil motion will become, and the increase that contact resistance also can be at double.By market survey, find to be widely used at present all kinds of relays in fields such as oil, chemical industry, electric power, metallurgy, unexpectedly there is not a kind of equipment to carry out verification and inspection to it, it being carried out and judge, and there is not this type of device effectively to test and verification on the market to relay yet.
Summary of the invention: the purpose of this utility model provides a kind of relay calibration equipment that can judge relay performance, mainly solves the technical matters that present relay can't detection check.For there is hidden danger in solution, key be the performance to relay comprise coil the operation voltage during dead electricity is judged, the slower and bigger relay of contact resistance is changed for those actions.The technical solution of the utility model is: the relay calibration equipment, power supply connects total power switch, total power switch connects fuse and connects regulator and step-down isolation transformer again, the output terminal of step-down isolation transformer connects bridge rectifier circuit, the output termination prime rotation wave band change-over switch loop of bridge rectifier circuit, prime rotation wave band change-over switch connects by school relay line bag.The input end of bridge rectifier circuit connects the AC relay seat after connecting ganged switch, and the output terminal of bridge rectifier circuit connects the DC relay seat after connecting ganged switch.When being the time relay by the school relay, level was rotated wave band change-over switch loop after time relay contact was connected to K4, and a back level rotation wave band change-over switch connects electrical secondmeter, thus the numeration time of checking time relay.The beneficial effects of the utility model are: by effective verification and the inspection to relay, can judge in advance relay, do or be failure to actuate or loop fault that poor contact of contacts causes thereby reduce unnecessary because relay misoperation.To the safe operation of field apparatus, and the safe operation of unit has extremely important meaning.
Description of drawings:
Accompanying drawing is the key wiring diagram of this practical relay calibration equipment
Embodiment: with reference to accompanying drawing, K3 is a measured relay type selecting switch, wherein: 0-expression room, 1-expression direct current time relay, 2-expression direct current auxiliary reclay, 3-expression exchange time relay, 4-expression AC intermediate relay.K4 is tested time relay contact type selecting switch, wherein: 0-expression room, 1-expression excitation time closing normal opened contact, the time-delay of 2-expression excitation disconnects normally closed contact, the time-delay of 3-expression loss of excitation disconnects normal opened contact, 4-expression loss of excitation time closing normally closed contact.Rotation wave band change-over switch K3 is divided into three layers, a, and b, c, when switch switches to contact 1, K3-A, K3-B, K3-C switch to contact 1 simultaneously; When should switch switching to contact 2, K3-A, K3-B, K3-C switch to contact 2 simultaneously; When switch switches to contact 3, K3-A, K3-B, K3-C switch to contact 3 simultaneously; When switch switches to contact 4, K3-A, K3-B, K3-C switch to contact 4 simultaneously; In like manner the effect of K4 is with the K3 unanimity.QL2A is the bridge rectifier element, effect: alternating voltage is converted to DC voltage.Relay principle of work: input 220V AC power, total power switch closes, pass through switch-fuse, directly export one road 220V AC power, pass through regulator and step-down isolation transformer again, obtain the 110V AC power,, obtain the 110V direct supply by rectification, carry out the selection of relay types by rotation wave band change-over switch: coil motion: (1), when switching to 1, rotation wave band change-over switch K3 selects the direct current time relay, DC relay J action, contact J-1 closes, and K3-C makes contact 1 simultaneously, K3-b makes contact 1, if this moment, K switch 2 was closed, the 110V AC power affacts on the K5, if this moment, K5 got to actuation coil, measured relay is with regard to excitation, if by the school relay is twin coil, get to resetting coil by K5, carry out the switching of loss of excitation/excitation between two groups of coils.(2), when switching to 2, rotation wave band change-over switch K3 selects the direct current auxiliary reclay, K3-b makes contact 2, if this moment, K switch 2 was closed, the 110V AC power affacts on the K5, if this moment, K5 got to actuation coil, measured relay is with regard to excitation, if be twin coil by the school relay, get to resetting coil by K5, carry out the switching of loss of excitation/excitation between two groups of coils.(3), when switching to 3, rotation wave band change-over switch K3 selects the exchange time relay, DC relay J action, contact J-1 closes, and K3-C makes contact 3 simultaneously, K3-b makes contact 3, if this moment, K switch 2 was closed, the 110V AC power affacts on the K5, if this moment, K5 got to actuation coil, measured relay is with regard to excitation, if by the school relay is twin coil, get to resetting coil by K5, carry out the switching of loss of excitation/excitation between two groups of coils.(4), when switching to 4, rotation wave band change-over switch K3 selects AC intermediate relay, K3-b makes contact 4, if this moment, K switch 2 was closed, the 110V AC power affacts on the K5, if this moment, K5 got to actuation coil, measured relay is with regard to excitation, if be twin coil by the school relay, get to resetting coil by K5, carry out the switching of loss of excitation/excitation between two groups of coils.
If detected is the time relay, connect an electrical secondmeter again, rotation wave band change-over switch K4 selects the contact type of the tested time relay: (1), selection excitation time-delay when rotation wave band change-over switch K4 switches to 1, after the relay J action, relay tip J-3 closure, electrical secondmeter picks up counting, because the tested time relay belongs to excitation time closing normal opened contact, the timing of equal time relay finishes, the normal opened contact closure, this moment the electrical secondmeter dead electricity, thereby the actuation time of having write down the tested time relay simultaneously.(2), when rotation wave band change-over switch K4 switches to 2, electrical secondmeter is received time-delay 0N and COM end, select the excitation time-delay to disconnect the normally closed contact relay, after the measured relay excitation, electrical secondmeter picks up counting simultaneously, after the action of the tested time relay, disconnects normally closed contact, electrical secondmeter does not stop timing owing to coil has power supply, thereby has write down the actuation time of the tested time relay.(3), when rotation wave band change-over switch K4 switches to 3, electrical secondmeter is received time-delay ON and COM end, selects loss of excitation time-delay disconnection normally closed contact, K2 closes, electrical secondmeter picks up counting, and when the tested time relay was delayed time the disconnection normally closed contact owing to loss of excitation after, counting finished.(4), when rotation wave band change-over switch K4 switches to 4, select loss of excitation time closing normal opened contact, draw back K2, electrical secondmeter picks up counting, when the tested time relay because loss of excitation and behind the time closing normal opened contact, counting finishes.
Relay detects step: 1, now relay is correctly inserted base by dissimilar and socket pin.2, select voltage model (exchanging or DC voltage) correctly according to relay types, corresponding switch is closed.3, the close power supply of relay calibration equipment, slowly rotate handwheel (regulator 0～250VAC), up to the actuating of relay, voltage during the record excitation, voltage when in like manner measuring loss of excitation (rated operational voltage according to each relay regulation is as the criterion, and the relay that exceeds voltage range will be in operation and have serious hidden danger).4, often opening of measuring relay respectively, the contact resistance of normally closed contact (contact resistance just often is bold and unconstrained ohm level).This device also can carry out verification to increase work efficiency to several relays simultaneously, can also carry out verification to part control loop or field control loop.Because the utility model also has one group of voltage tap, so can the dissimilar relay of verification.
Claims (3)
1, relay calibration equipment, it is characterized in that: power supply connects total power switch, total power switch connects regulator and step-down isolation transformer through fuse, the output terminal of step-down isolation transformer connects bridge rectifier circuit, the output termination prime rotation wave band change-over switch loop of bridge rectifier circuit, prime rotation wave band change-over switch connects by school relay line bag.
2, relay calibration equipment according to claim 1 is characterized in that: when being the time relay by the school relay, level was rotated wave band change-over switch loop after time relay contact was connected to K4, and a back level rotation wave band change-over switch connects electrical secondmeter.
3, relay calibration equipment according to claim 1 is characterized in that: the input end of bridge rectifier circuit connects the AC relay seat after connecting ganged switch, and the output terminal of bridge rectifier circuit connects the DC relay seat after connecting ganged switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047028 CN2884220Y (en) | 2005-11-29 | 2005-11-29 | Device for checking electric relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047028 CN2884220Y (en) | 2005-11-29 | 2005-11-29 | Device for checking electric relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2884220Y true CN2884220Y (en) | 2007-03-28 |
Family
ID=37957280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520047028 Expired - Fee Related CN2884220Y (en) | 2005-11-29 | 2005-11-29 | Device for checking electric relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2884220Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998616A (en) * | 2012-10-23 | 2013-03-27 | 上海市电力公司 | Online calibrating method for transformer sudden-change pressure relay |
| CN103245872A (en) * | 2013-05-22 | 2013-08-14 | 湘潭电机股份有限公司 | State detection device for alternating current fuse |
| CN103339520A (en) * | 2011-01-28 | 2013-10-02 | 赞特雷克斯科技公司 | Fuse continuity detection |
| CN104483625A (en) * | 2014-12-16 | 2015-04-01 | 贵州天义汽车电器有限公司 | Relay detection device |
| CN104614671A (en) * | 2015-02-02 | 2015-05-13 | 苏州市计量测试研究所 | Calibration aiding device for time relay and calibration method |
| CN104865521A (en) * | 2015-06-12 | 2015-08-26 | 中国南方电网有限责任公司超高压输电公司南宁局 | Instrument and method for testing action time of hand-held time relay |
| CN106054071A (en) * | 2016-08-11 | 2016-10-26 | 国家电网公司 | Relay calibration instrument |
| CN106707158A (en) * | 2017-02-22 | 2017-05-24 | 江苏信息职业技术学院 | Time relay calibration device and calibration method thereof |
| CN107576906A (en) * | 2017-09-19 | 2018-01-12 | 国家电网公司 | A kind of portable relay checking platform and its application method |
| CN108152725A (en) * | 2017-12-14 | 2018-06-12 | 国网宁夏电力有限公司电力科学研究院 | A kind of electric switch Interruption experimental rig |
-
2005
- 2005-11-29 CN CN 200520047028 patent/CN2884220Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103339520A (en) * | 2011-01-28 | 2013-10-02 | 赞特雷克斯科技公司 | Fuse continuity detection |
| CN103339520B (en) * | 2011-01-28 | 2016-03-02 | 施耐德电气太阳能逆变器美国股份有限公司 | Fuse continuity detects |
| CN102998616B (en) * | 2012-10-23 | 2014-12-17 | 上海市电力公司 | Online calibrating method for transformer sudden-change pressure relay |
| CN102998616A (en) * | 2012-10-23 | 2013-03-27 | 上海市电力公司 | Online calibrating method for transformer sudden-change pressure relay |
| CN103245872A (en) * | 2013-05-22 | 2013-08-14 | 湘潭电机股份有限公司 | State detection device for alternating current fuse |
| CN103245872B (en) * | 2013-05-22 | 2015-09-30 | 湘潭电机股份有限公司 | AC fuse condition checkout gear |
| CN104483625B (en) * | 2014-12-16 | 2017-08-25 | 贵州天义技术有限公司 | A kind of electric relay detection device |
| CN104483625A (en) * | 2014-12-16 | 2015-04-01 | 贵州天义汽车电器有限公司 | Relay detection device |
| CN104614671A (en) * | 2015-02-02 | 2015-05-13 | 苏州市计量测试研究所 | Calibration aiding device for time relay and calibration method |
| CN104865521A (en) * | 2015-06-12 | 2015-08-26 | 中国南方电网有限责任公司超高压输电公司南宁局 | Instrument and method for testing action time of hand-held time relay |
| CN104865521B (en) * | 2015-06-12 | 2018-03-09 | 中国南方电网有限责任公司超高压输电公司南宁局 | A kind of hand-held time relay actuation time tester and method |
| CN106054071A (en) * | 2016-08-11 | 2016-10-26 | 国家电网公司 | Relay calibration instrument |
| CN106707158A (en) * | 2017-02-22 | 2017-05-24 | 江苏信息职业技术学院 | Time relay calibration device and calibration method thereof |
| CN107576906A (en) * | 2017-09-19 | 2018-01-12 | 国家电网公司 | A kind of portable relay checking platform and its application method |
| CN108152725A (en) * | 2017-12-14 | 2018-06-12 | 国网宁夏电力有限公司电力科学研究院 | A kind of electric switch Interruption experimental rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI YONGSHUN ELECTRIC ROUP CO.,LTD. Free format text: FORMER OWNER: SHANGHAI BAOSTEEL EQUIPMENT MAINTENANCE CO., LTD Effective date: 20100623 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201900 JIWU ROAD, BAOGANG FACTORY AREA, BAOSHAN DISTRICT, SHANGHAI CITY, WEI 1 ROAD TO: 201812 NO.338, BAOYUAN 7 ROAD, JINBAO INDUSTRIAL PARK, JIANGQIAO TOWN, JIADING DISTRICT, SHANGHAI CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100623 Address after: 201812, No. seven, No. 338, Bao garden, Jinbao Industrial Park, Jiading District Town, Shanghai Patentee after: Shanghai Yongshun Electric (Group) Co., Ltd. Address before: 201900 Shanghai city Baoshan District Baosteel five road, Weiyi machine Patentee before: Shanghai Baogang Equipment Overhaul Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070328 Termination date: 20121129 |