CN202306343U - Automatic draining controller for cable trench - Google Patents
Automatic draining controller for cable trench Download PDFInfo
- Publication number
- CN202306343U CN202306343U CN2011203571514U CN201120357151U CN202306343U CN 202306343 U CN202306343 U CN 202306343U CN 2011203571514 U CN2011203571514 U CN 2011203571514U CN 201120357151 U CN201120357151 U CN 201120357151U CN 202306343 U CN202306343 U CN 202306343U
- Authority
- CN
- China
- Prior art keywords
- relay
- triode
- normally closed
- closed contact
- contactor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
一种电缆沟自动排水控制器，在电缆沟内设置低电极和高电极，且在低电极和高电极之间设置继电器第一常闭触点，继电器第一常闭触点的输出端连接第一三极管的基极，第一三极管的集电极连接第二三极管的基极，第二三极管的集电极连接继电器，继电器第二常闭触点和交流接触器串联连接，交流接触器第一常开触点设置在排水电机的工作电路中。采用本实用新型后，使电缆沟内积水及时排出；变电值班员不用再定期检查电缆沟有无积水，降低了劳动强度；消除了直流接地可能造成断路器跳闸引发的停电事故，提高了供电可靠性。
A cable ditch automatic drainage controller, in which a low electrode and a high electrode are set in the cable ditch, and a first normally closed contact of a relay is set between the low electrode and the high electrode, and the output end of the first normally closed contact of the relay is connected to the first The base of a triode, the collector of the first triode is connected to the base of the second triode, the collector of the second triode is connected to the relay, and the second normally closed contact of the relay is connected in series with the AC contactor , the first normally open contact of the AC contactor is set in the working circuit of the drainage motor. After the utility model is adopted, the accumulated water in the cable ditch can be discharged in time; the substation on duty does not need to regularly check whether there is any accumulated water in the cable ditch, which reduces the labor intensity; eliminates the power outage accident caused by the tripping of the circuit breaker caused by DC grounding, and improves power supply reliability.
Description
Technical field
The utility model relates to a kind of controller, relates in particular to a kind of controller that ponding is in time discharged in the ditch that makes.
Background technology
By designing requirement excavation and build by laying bricks or stones, the sidewall welding load slotted-angle shelving of ditch and ground connection on request, upper cover is exactly a cable duct with the underdrain of cover plate.Its purposes is exactly the underground designated lane of cabling.Cover plate can be opened, and cable laying is widely used in generating plant and transformer station in the electric system on sidewall welding load slotted-angle shelving.
The remote-controlled operation of the relay protection in the electric substation, aut.eq., telltale, emergency lighting and electrical equipment is to realize through the cable in the cable duct that is laid in, and generally adopts direct supply as operating power; When summer rainwater many seasons, because cable duct is underground, rainwater is easy to get into wherein, can cause dc system grounding, possibly cause circuit breaker trip or tripping, causes power outage.At present, transformer station is equipped with flood control to use submersible pump, arrives when rainy season, must regularly open ponding in the cable channel cover plate inspection ditch, puts into submersible pump when ponding is too much and draws water.At present, the power transformation person on duty need make regular check on cable duct and have or not ponding, has increased working strength of workers, and the ponding in the ditch can not in time be discharged.
Summary of the invention
The purpose of the utility model provides a kind of automatic water discharge controller of cable duct of saving manpower, avoiding electrical hazard.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
The utility model is provided with low electrode and high electrode in cable duct; And relay first normally closed contact is set between low electrode and high electrode; The output terminal of relay first normally closed contact connects the base stage of first triode, and the collector of first triode connects the base stage of second triode, the collector connection relay of second triode; Relay second normally closed contact and A.C. contactor are connected in series, and the A.C. contactor normally opened contact is arranged in the operating circuit of drain motor.
Said A.C. contactor second normally opened contact is arranged in the warning circuit.
Adopt the utility model of technique scheme, when upper limit immersion probe was soaked in water, the interior water pump draining of cable duct was opened in water discharge controller warnings of blowing a whistle immediately automatically, and output 220V voltage.After water level was lower than lower limit immersion probe, water discharge controller stopped to report to the police immediately automatically, and stops to export 220V voltage, and electric equipment such as can switch off the pump.After adopting the utility model, the interior ponding of cable duct is in time discharged; The power transformation person on duty need not make regular check on cable duct again and have or not ponding, has reduced labour intensity; Eliminate the power outage that DC earthing possibly cause circuit breaker trip to cause, improved power supply reliability.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model.
Embodiment
As shown in Figure 1; The utility model is provided with low electrode L and high electrode H in cable duct G, wherein low electrode L is in the bottom of cable duct G, and high electrode H is positioned at the top of cable duct G; And the relay first normally closed contact JK1 is set between low electrode L and high electrode H; The output terminal of the relay first normally closed contact JK1 connects the base stage of the first triode T1, and the collector of the first triode T1 connects the base stage of the second triode T2, the collector connection relay J1 of the second triode T2; Relay second normally closed contact JK2 and A.C. contactor CJ are connected in series, and the A.C. contactor first normally opened contact CJ1 is arranged in the operating circuit of drain motor.
The said A.C. contactor second normally opened contact CJ2 is arranged in the warning circuit.
The automatic draining control circuit of cable duct principle: the first normally closed contact JK1 in relay J 1 makes circuit that the return difference characteristic arranged, and avoids the frequent action of motor; When water level was lower than low electrode L, the first triode T1 did not have bias current and by, the second triode T2 conducting, relay J 1 adhesive, and the relay second normally closed contact JK2 opens, and A.C. contactor CJ is failure to actuate, and drain motor M does not work; When water level rises to high electrode H place; At this moment the first triode T1 obtains bias current and conducting through high electrode H, the second triode T2 by, relay J 1 discharges; The relay second normally closed contact JK2 is closed; A.C. contactor CJ action, the A.C. contactor first normally opened contact CJ1 is closed, connects drain motor M and begins draining.Simultaneously, the A.C. contactor second normally opened contact CJ2 is closed, and hummer FM reports to the police.
At this moment the relay first normally closed contact JK1 connects again, supposes that water level begins to descend and be lower than high electrode H, but because the relay first normally closed contact JK1 connects the bias current of having kept the first triode T1; The second triode T2 keep by, draining is proceeded, until water level is lower than low electrode L; Relay J 1 adhesive, the relay second normally closed contact JK2 opens, A.C. contactor CJ dead electricity; Drain motor M quits work, and hummer FM quits work simultaneously.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203571514U CN202306343U (en) | 2011-09-22 | 2011-09-22 | Automatic draining controller for cable trench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203571514U CN202306343U (en) | 2011-09-22 | 2011-09-22 | Automatic draining controller for cable trench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202306343U true CN202306343U (en) | 2012-07-04 |
Family
ID=46375201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203571514U Expired - Fee Related CN202306343U (en) | 2011-09-22 | 2011-09-22 | Automatic draining controller for cable trench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202306343U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820445A (en) * | 2015-04-07 | 2015-08-05 | 国家电网公司 | Cable trench water level monitoring alarm system |
| CN109343584A (en) * | 2018-10-12 | 2019-02-15 | 广东电网有限责任公司 | A cable well automatic flood alarm and drainage control device |
-
2011
- 2011-09-22 CN CN2011203571514U patent/CN202306343U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820445A (en) * | 2015-04-07 | 2015-08-05 | 国家电网公司 | Cable trench water level monitoring alarm system |
| CN109343584A (en) * | 2018-10-12 | 2019-02-15 | 广东电网有限责任公司 | A cable well automatic flood alarm and drainage control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20120922 |