CN104638620A - Intelligentized low voltage power consumption system and fault judgment method thereof - Google Patents
Intelligentized low voltage power consumption system and fault judgment method thereof Download PDFInfo
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- CN104638620A CN104638620A CN201510064174.9A CN201510064174A CN104638620A CN 104638620 A CN104638620 A CN 104638620A CN 201510064174 A CN201510064174 A CN 201510064174A CN 104638620 A CN104638620 A CN 104638620A
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- mcb
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- intelligent switch
- power consumption
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses an intelligentized low voltage power consumption system and a fault judgment method thereof. The intelligentized low voltage power consumption system comprises an MCB (Miniature Circuit Breaker) connected with a power grid, and a plurality of intelligent switches which are connected to the output end of the MCB in parallel; the intelligent switches supply power to power consumption equipment; when a circuit where a certain intelligent switch is located is faulty, the MCB trips immediately to play a protecting role, and meanwhile, the corresponding intelligent switch also trips because of detecting that the circuit is faulty, and generates a tripping record which is then uploaded to a remote control end of the intelligent switch; when the MCB is switched on, the corresponding intelligent switch cannot be switched on until the remote control end cancels the record. According to the intelligent low voltage power consumption system and the fault judgment method thereof, the intelligent switches act as branch switches instead of branch MCBs, so that the intelligentized low voltage power consumption system can well protect and control all pieces of power consumption equipment without affecting the safety and the reliability of a power circuit, without causing protection failure of the MCB caused by the installation of the intelligent switches and without causing poor service to the power consumption equipment; in the meantime, the intelligentization function is increased, and the power consumption system can be used for automatically judging a faulty circuit.
Description
Technical field
The present invention relates to electrical domain, specifically a kind of intelligent low power used system and fault judgment method thereof.
Background technology
At present, existing low power used system is miniature circuit breaker (being called for short MCB) by being connected with electrical network for power consumption equipment is powered mostly; MCB comprises as total road MCB of total protection with as a point shunt MCB for protection, the output of total road MCB that all shunt MCB are connected in parallel on.MCB is most popular a kind of terminal protection electrical equipment in architectural electricity terminal, and it is a kind of existing hand switch effect, again can the electrical equipment of automatic short-circuit protection.It can be used to distribute electric energy, infrequently starts asynchronous motor, carries out protection to power circuit and motor etc., and the energy automatic shutdown circuit when circuit is short-circuited fault, its function is equivalent to
fuseformula switch and the combination of crossing underheat relay etc.And do not need to change parts after disjunction fault current, and then obtain a wide range of applications.But the normal running of MCB can only be manual, overload, overvoltage/undervoltage can not be provided to protect and automatically control, the requirement that the informationization of current using electricity system, networking, intellectuality and multifunction degree improve constantly can not be met.And intelligent switch has and cut-offs load current, leak current fault electric current, the functions such as the protection of overload, overvoltage/undervoltage and Long-distance Control ON/OFF, but thus can not, separately as the use of terminal protection electrical equipment, therefore need to coordinate with MCB owing to not having short-circuit protection.And association area also there are no by itself and MCB with the use of.
Summary of the invention
The object of the present invention is to provide a kind of intelligent low power used system and fault judgment method thereof, with ensure MCB can normal protection circuit and control power consumption equipment the prerequisite of on/off under, realize intelligent electricity consumption.
For achieving the above object, the invention provides following technical scheme:
A kind of intelligent low power used system, comprise the MCB be connected with electrical network, and be connected in parallel on multiple intelligent switchs of MCB output, be that power consumption equipment is powered by intelligent switch, when arbitrary road intelligent switch place line fault, MCB trips immediately and shields, simultaneously, this intelligent switch because line fault being detected, and also trips after dead electricity being detected simultaneously immediately; When close MCB time, only have and just to be closed this intelligent switch by remote control.
As the further scheme of the present invention: when intelligent switch detects line fault, if there is not the time that dead electricity or dead electricity time of origin exceed setting, intelligent switch does not trip.
As the further scheme of the present invention: when intelligent switch dead electricity, if detect that time that fault occurs exceedes the time of setting, intelligent switch does not trip; Only have when fault and dead electricity occur simultaneously, intelligent switch just trips.
The fault judgment method of described intelligent low power used system, specifically comprises following process:
A. under normal circumstances, use remote pilot intelligent switch to open/stop power consumption equipment, MCB is as circuit master switch;
If b. during certain intelligent switch X place line fault, MCB trips immediately and shields, meanwhile, intelligent switch X because line fault being detected, and detects dead electricity simultaneously, also namely detects that MCB trips, and then also trips immediately; Now, other intelligent switchs are motionless, keep original state;
C. when close MCB time, non-fault line recovers normal immediately; Intelligent switch X is in failure locking state, and its place circuit can not recover normal, and therefore this circuit is faulty line;
D., to be closed intelligent switch X by remote control after handling failure when inspection;
If e. MCB trips again, illustrate that fault is not got rid of, repeat said process b, c and d, until intelligent switch X closes a floodgate, its place circuit rear restores electricity, and trouble shooting is described.
Therefore, in the present invention, intelligent switch can use as a line shunting switch completely; MCB plays short-circuit protection effect while using as master switch, and intelligent switch plays overload, overvoltage/undervoltage protection.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention adopts intelligent switch to replace MCB along separate routes; only need a MCB as total protection and master switch; intelligent switch is as branch switch; this system can be protected well and control all power consumption equipments; the safety and reliability of power circuit can not be affected, the shielding failure of MCB can not be caused because of the installation of intelligent switch, also can not impact the use of power consumption equipment is bad; add intelligent function simultaneously, and this using electricity system energy automatic decision isolated fault circuit.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of intelligent low power used system.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Refer to Fig. 1, a kind of intelligent low power used system, comprise the MCB be connected with electrical network, and be connected in parallel on multiple intelligent switchs of MCB output, be that power consumption equipment is powered by intelligent switch, when arbitrary road intelligent switch place line fault, MCB trips immediately and shields, meanwhile, this intelligent switch because line fault being detected, and also trips after dead electricity being detected simultaneously immediately; When close MCB time, only have and just to be closed this intelligent switch by remote control.
As the further scheme of the present invention: when intelligent switch detects line fault, if there is not the time that dead electricity or dead electricity time of origin exceed setting, intelligent switch does not trip.When intelligent switch dead electricity, if detect that time that fault occurs exceedes the time of setting, intelligent switch does not trip; Only have when fault and dead electricity occur simultaneously, intelligent switch just trips.
The fault judgment method of described intelligent low power used system, specifically comprises following process:
A. under normal circumstances, use remote pilot intelligent switch to open/stop power consumption equipment, MCB is as circuit master switch;
If b. during certain intelligent switch X place line fault, MCB trips immediately and shields, meanwhile, intelligent switch X because line fault being detected, and detects dead electricity simultaneously, also namely detects that MCB trips, and then also trips immediately; Now, other intelligent switchs are motionless, keep original state;
C. when close MCB time, non-fault line recovers normal immediately; Intelligent switch X is in failure locking state, and its place circuit can not recover normal, and therefore this circuit is faulty line;
D., to be closed intelligent switch X by remote control after handling failure when inspection;
If e. MCB trips again, illustrate that fault is not got rid of, repeat said process b, c and d, until intelligent switch X closes a floodgate, its place circuit rear restores electricity, and trouble shooting is described.
Therefore, in the present invention, intelligent switch can use as a line shunting switch completely; MCB plays short-circuit protection effect while using as master switch, and intelligent switch plays overload, overvoltage/undervoltage protection.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned execution mode, in the ken that one skilled in the relevant art possesses, can also makes a variety of changes under the prerequisite not departing from this patent aim.
Claims (4)
1. an intelligent low power used system, it is characterized in that, comprise the MCB be connected with electrical network, and be connected in parallel on multiple intelligent switchs of MCB output, be that power consumption equipment is powered by intelligent switch, when arbitrary road intelligent switch place line fault, MCB trips immediately and shields, meanwhile, this intelligent switch because line fault being detected, and also trips after dead electricity being detected simultaneously immediately; When close MCB time, only have and just to be closed this intelligent switch by remote control.
2. intelligent low power used system according to claim 1, is characterized in that, when intelligent switch detects line fault, if there is not the time that dead electricity or dead electricity time of origin exceed setting, intelligent switch does not trip.
3. the fault judgment method of intelligent low power used system according to claim 2, is characterized in that, when intelligent switch dead electricity, if detect that time that fault occurs exceedes the time of setting, intelligent switch does not trip; Only have when fault and dead electricity occur simultaneously, intelligent switch just trips.
4. a fault judgment method for the intelligent low power used system as described in claim 1-3, is characterized in that, specifically comprises following process:
A. under normal circumstances, use remote pilot intelligent switch to open/stop power consumption equipment, MCB is as circuit master switch;
If b. during certain intelligent switch X place line fault, MCB trips immediately and shields, meanwhile, intelligent switch X because line fault being detected, and detects dead electricity simultaneously, also namely detects that MCB trips, and then also trips immediately; Now, other intelligent switchs are motionless, keep original state;
C. when close MCB time, non-fault line recovers normal immediately; Intelligent switch X is in failure locking state, and its place circuit can not recover normal, and therefore this circuit is faulty line;
D., to be closed intelligent switch X by remote control after handling failure when inspection;
If e. MCB trips again, illustrate that fault is not got rid of, repeat said process b, c and d, until intelligent switch X closes a floodgate, its place circuit rear restores electricity, and trouble shooting is described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510064174.9A CN104638620A (en) | 2015-02-09 | 2015-02-09 | Intelligentized low voltage power consumption system and fault judgment method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510064174.9A CN104638620A (en) | 2015-02-09 | 2015-02-09 | Intelligentized low voltage power consumption system and fault judgment method thereof |
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| CN104638620A true CN104638620A (en) | 2015-05-20 |
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| CN201510064174.9A Pending CN104638620A (en) | 2015-02-09 | 2015-02-09 | Intelligentized low voltage power consumption system and fault judgment method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109384120A (en) * | 2017-08-08 | 2019-02-26 | 杭州沪宁电梯部件股份有限公司 | A kind of elevator non-faulting power loss trigger protection device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0787665A (en) * | 1993-09-14 | 1995-03-31 | Toshiba Corp | Isolating device for distribution-line fault section |
| CN103001193A (en) * | 2012-11-13 | 2013-03-27 | 山东电力集团公司济南供电公司 | Centralized feeder automation control method for demarcation fault processing |
-
2015
- 2015-02-09 CN CN201510064174.9A patent/CN104638620A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0787665A (en) * | 1993-09-14 | 1995-03-31 | Toshiba Corp | Isolating device for distribution-line fault section |
| CN103001193A (en) * | 2012-11-13 | 2013-03-27 | 山东电力集团公司济南供电公司 | Centralized feeder automation control method for demarcation fault processing |
Non-Patent Citations (2)
| Title |
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| 吕继伟等: "电缆分界负荷开关控制器故障判断算法", 《电力与能源》 * |
| 程志刚: "浅谈10kV分界开关在配电网架空线路上应用", 《电力学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109384120A (en) * | 2017-08-08 | 2019-02-26 | 杭州沪宁电梯部件股份有限公司 | A kind of elevator non-faulting power loss trigger protection device |
| CN109384120B (en) * | 2017-08-08 | 2024-04-02 | 杭州沪宁电梯部件股份有限公司 | Non-fault power-off trigger protection device for elevator |
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Application publication date: 20150520 |