CN201069463Y - Quick diagnosis instrument for power loss of low-voltage control line - Google Patents
Quick diagnosis instrument for power loss of low-voltage control line Download PDFInfo
- Publication number
- CN201069463Y CN201069463Y CNU2007200716854U CN200720071685U CN201069463Y CN 201069463 Y CN201069463 Y CN 201069463Y CN U2007200716854 U CNU2007200716854 U CN U2007200716854U CN 200720071685 U CN200720071685 U CN 200720071685U CN 201069463 Y CN201069463 Y CN 201069463Y
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- time relay
- coil
- relay
- voltage control
- contact switch
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 20
- 230000005611 electricity Effects 0.000 claims description 28
- 238000005259 measurement Methods 0.000 claims description 9
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
The utility model discloses a device for the rapid diagnosis of power failure of a low-voltage control circuit, which comprises a time relay, an intermediate relay, a button and an alarm. The time relay (SJ) has a coil with three terminal wires (21,22,23), wherein, one terminal wire (21) serves as a positive pole of a measuring-point connection terminal, another terminal wire (22) serves as a negative pole of the measuring-point connection terminal, the third terminal wire (23) is connected with one end of the button, the other end of the button is connected with the terminal wire (21) of the coil of the time relay (SJ). The time relay (SJ) also has an assistant contact switch which is connected with one end of the coil of the intermediate relay (IC), wherein, the other end of the intermediate relay (IC) is connected with the terminal wire (22) of the coil of the time relay (SJ). The intermediate relay (IC) has an assistant contact switch which is connected with the alarm. The intermediate relay (IC) is also provided thereon with an indicator lamp by means of parallel connection. The utility model can rapidly detect the fault point during the power failure, and helps to increase the efficiency of electrical maintenance and reduce the equipment breakdown time.
Description
Technical field
The utility model relates to a kind of low voltage control circuit dead electricity quick diagnosis instrument.
Background technology
Existing power equipment system is in service, and its low voltage control circuit dead electricity accident happens occasionally.Operation circuit dead electricity reason mainly be electric components damage or the loose contact of components and parts contact or terminal loosening, existing motor control center (MMC) has many electric components, as the switchgear building low-voltage power distributing cabinet automatic air-break switch QL1, circuit breaker Q L, electrothermal relay KT, contactor KM, relay SJ is arranged; Hand automatic change over HK, key switch SSE, start button SSB, stop button SS are arranged in the execute-in-place case; The scene protection device has pull switch SE, sideslip switch 1PK, 2PK; There are input relay KSA, PJ1, PJ2, KSE output relay KA, input/output module in the PLC unit, referring to Fig. 3.The equipment state that these components and parts are in operation can reflect at Central Control Room or scene, but it is loosening to run into above-mentioned these components and parts contact loose contacts or terminal, operation circuit like electric again must electric situation under, this be unavoidable also be unpredictable, Central Control Room or scene just can not be reflected, and be bad during equipment operation meeting this moment fashion.Find reason if can in time find the trouble spot, just can resume production at once.And existing monitoring means can not all be diagnosed the trouble spot, and are especially loosening to loose contact of components and parts contact or terminal, and fault phenomenon such as cut in and out can't be diagnosed, and does not also have a kind of cheap dead electricity quick diagnosis instrument simple in structure.
The utility model content
The purpose of this utility model is to provide a kind of low voltage control circuit dead electricity quick diagnosis instrument, and this quick diagnosis instrument can be found the trouble spot rapidly when the circuit dead electricity, thereby improves electrical repair efficient, reduces equipment downtime.
The utility model is achieved in that a kind of low voltage control circuit dead electricity quick diagnosis instrument, it is characterized in that: comprise the time relay, auxiliary reclay, button, alarm, the time relay sj coil has three ends lead-in wire 21,22,23, one end lead-in wire 21 is as measurement point connection terminal positive terminal, other end lead-in wire 22 is as measurement point connection terminal negative pole, the 3rd end lead-in wire 23 connects button one end, another termination time relay sj coil one end lead-in wire 21 of button; The time relay sj auxiliary contact switch connects intermediate relay I C coil one end, another termination time relay sj coil lead 22 of intermediate relay I C coil; Intermediate relay I C auxiliary contact switch device taking alarm.
Described on intermediate relay I C pilot lamp in parallel.
Described time relay sj auxiliary contact switch is a normal open switch, when the time relay sj coil get electric after by often open become normally closed.Intermediate relay I C auxiliary contact switch is a normally closed switch, is opened by normally closed often becoming after electric when middle relay IC coil gets.
The utility model is to utilize the interior time relay of diagnostic equipment that operation circuit is monitored, when the Access Control line diagnosis, press the button, the time relay is moved preceding triggering, time relay coil gets, its auxiliary contact switch by often open become normally closed, it is electric that the auxiliary reclay that is attached thereto is got, and the auxiliary reclay auxiliary contact switch is left by normally closed often becoming, and causes hummer one tunnel dead electricity.The normal pilot lamp of circuit is bright on the diagnostic equipment panel at this moment, and hummer is not named.When operation circuit breaks down the back dead electricity, the time relay will cut off the power supply, even the trouble spot resets at once, diagnostic equipment internal time relay auxiliary contact switch is opened by normally closed often becoming, auxiliary reclay dead electricity, auxiliary reclay auxiliary contact switch become the normally closed point of original state, and hummer gets, this moment, diagnostic equipment panel line signal was also dark simultaneously, and hummer is being named.Thereby make the electrical repair personnel can judge the scope of equipment failure point conveniently, intuitively, improve electrical repair efficient, reduce equipment downtime.
Description of drawings
Fig. 1 is the utility model low voltage control circuit dead electricity quick diagnosis instrument cut-away drawing;
Fig. 2 is the utility model low voltage control circuit dead electricity quick diagnosis instrument panel synoptic diagram;
Fig. 3 is that low voltage control circuit dead electricity quick diagnosis instrument detects motor control center one end road synoptic diagram.
Among the figure: 1 button, 2 time relays (SJ), 3 auxiliary reclays (IC), 4 pilot lamp, 5 alarms (hummer), 6 time relay auxiliary contact switch, 7 auxiliary reclay auxiliary contact switch, 8 measurement point connection terminal positive poles, 9 measurement point connection terminal negative poles (the N utmost point).
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2, a kind of low voltage control circuit dead electricity quick diagnosis instrument comprises the time relay, auxiliary reclay, button, alarm, and the time relay is Omron H3BA-N, and auxiliary reclay is the FRL230 of Fuji.The time relay 2 coils have three ends lead-in wire 21,22,23, one end lead-in wire 21 is as measurement point connection terminal positive pole 8, and other end lead-in wire 22 is as measurement point connection terminal negative pole 9, i.e. the N utmost point, the 3rd end lead-in wire 23 connects button 1 one ends, button 1 another termination time relay 2 coils one end lead-in wire 1.Time relay sj auxiliary contact switch 6 connects auxiliary reclay 3 coils one end, another termination time relay 2 coil leads 22 of auxiliary reclay 3 coils.Intermediate relay I C auxiliary contact switch 7 devices 5 taking alarm.Pilot lamp 4 in parallel at auxiliary reclay 3 two ends.
Described time relay sj auxiliary contact switch 6 is a normal open switch, when time relay 2 coils get electric after by often open become normally closed.
Described intermediate relay I C auxiliary contact switch 7 is a normally closed switch, is opened by normally closed often becoming after electric when middle relay 3 coils get.
The principle of work of the utility model low voltage control circuit dead electricity quick diagnosis instrument is to utilize the interior 2 pairs of operation circuits of the time relay of diagnostic equipment to monitor, because this time relay 2 triggers the characteristics of moving before having work, when the Access Control circuit, press the button 1, the time relay 1 is moved preceding triggering, this moment, the time relay 2 coils got, its auxiliary contact switch 6 by often open become normally closed, auxiliary reclay 3 is got, auxiliary reclay auxiliary contact switch 7 is left by normally closed often becoming, and causes hummer 5 one tunnel dead electricity.The normal pilot lamp of circuit 4 is bright on this moment diagnostic equipment panel, and hummer 5 is not named.When operation circuit breaks down the back dead electricity, the time relay 2 will cut off the power supply, even the trouble spot resets at once, the interior lamp of diagnostic equipment internal time relay 2 can not lighted yet, and this moment, time relay sj auxiliary contact switch 6 was opened auxiliary reclay 3 dead electricity by normally closed often becoming, auxiliary reclay auxiliary contact switch 7 becomes the normally closed point of original state, hummer 5 gets electric, and this moment, diagnostic equipment panel line signal 4 was also dark simultaneously, and hummer 5 is being named.Thereby make the electrical repair personnel can judge the scope of equipment failure point conveniently, intuitively.
The utility model low voltage control circuit dead electricity quick diagnosis instrument is work like this:
Referring to Fig. 3, measurement point connection terminal of this quick diagnosis instrument anodal 8 and negative pole 9 are connected on No. 123 terminals of motor control center (MCC) circuit and N number (zero line) terminal, just can monitor No. 123 preceding circuits of terminal and be subjected to electricity condition.No. 123 terminals have electricity when circuit is normal, the interior lamp Chang Liang that diagnostic equipment internal time relay 2 carries, and normal pilot lamp 4 is bright on the diagnostic equipment panel, and hummer 5 is not reported to the police.In case No. 123 terminal dead electricity illustrate that No. 123 preceding a certain components and parts of terminal have fault, the interior lamp that diagnostic equipment internal time relay 2 carries is by bright deepening; Normal pilot lamp 4 is also by bright deepening on the diagnostic equipment panel, and hummer 5 is reported to the police.Even the trouble spot instantaneous recovery, No. 123 terminal recovers to have electricity again, and the interior lamp that this moment, diagnostic equipment internal time relay 2 carried can not lighted yet, and normal pilot lamp 4 is still dark on the diagnostic equipment panel, and hummer 5 is still reported to the police.Have or not cry by normal pilot lamp 4 of monitoring diagnostic instrument panel or hummer 5, electric maintainer just can judge No. 123 preceding components and parts of terminal rapidly and be subjected to electric situation.
In like manner this diagnostic equipment can be contained in No. 121 terminals and N number (zero line), just can monitor No. 121 preceding components and parts of terminal and be subjected to electric situation.
Claims (4)
1. low voltage control circuit dead electricity quick diagnosis instrument, it is characterized in that: comprise the time relay, auxiliary reclay, button, alarm, the time relay (SJ) coil has three ends lead-in wires (21,22,23), one end lead-in wire (21) is as measurement point connection terminal positive terminal, other end lead-in wire (22) is as measurement point connection terminal negative pole, the 3rd end lead-in wire (23) connects button one end, another termination time relay (SJ) coil one end lead-in wire (21) of button; The time relay (SJ) auxiliary contact switch connects auxiliary reclay (IC) coil one end, another termination time relay (SJ) coil lead (22) of auxiliary reclay (IC) coil; Auxiliary reclay (IC) auxiliary contact switch device taking alarm.
2. a kind of low voltage control circuit dead electricity quick diagnosis instrument according to claim 1 is characterized in that: go up pilot lamp in parallel at auxiliary reclay (IC).
3. a kind of low voltage control circuit dead electricity quick diagnosis instrument according to claim 1 and 2, it is characterized in that: the time relay (SJ) auxiliary contact switch is a normal open switch, when time relay (SJ) coil get electric after by often open become normally closed.
4. a kind of low voltage control circuit dead electricity quick diagnosis instrument according to claim 1 and 2, it is characterized in that: auxiliary reclay (IC) auxiliary contact switch is a normally closed switch, is opened by normally closed often becoming after electric when middle relay (IC) coil gets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200716854U CN201069463Y (en) | 2007-06-27 | 2007-06-27 | Quick diagnosis instrument for power loss of low-voltage control line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200716854U CN201069463Y (en) | 2007-06-27 | 2007-06-27 | Quick diagnosis instrument for power loss of low-voltage control line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201069463Y true CN201069463Y (en) | 2008-06-04 |
Family
ID=39490852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200716854U Expired - Fee Related CN201069463Y (en) | 2007-06-27 | 2007-06-27 | Quick diagnosis instrument for power loss of low-voltage control line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201069463Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813942B (en) * | 2009-02-20 | 2012-03-07 | 上海梅山钢铁股份有限公司 | Diagnostic equipment for fault points of control circuit |
| CN104849607A (en) * | 2015-05-15 | 2015-08-19 | 深圳市华星光电技术有限公司 | Circuit for automatically detecting power supply interface and method of detecting safety grating power supply interface |
-
2007
- 2007-06-27 CN CNU2007200716854U patent/CN201069463Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813942B (en) * | 2009-02-20 | 2012-03-07 | 上海梅山钢铁股份有限公司 | Diagnostic equipment for fault points of control circuit |
| CN104849607A (en) * | 2015-05-15 | 2015-08-19 | 深圳市华星光电技术有限公司 | Circuit for automatically detecting power supply interface and method of detecting safety grating power supply interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20080604 Termination date: 20160627 |