CN201298756Y

CN201298756Y - Intelligent current limiting protector

Info

Publication number: CN201298756Y
Application number: CNU2008201632723U
Authority: CN
Inventors: 吴四顺
Original assignee: Huzhou Power Supply Bureau
Current assignee: Huzhou Power Supply Bureau
Priority date: 2008-08-22
Filing date: 2008-08-22
Publication date: 2009-08-26
Anticipated expiration: 2018-08-22

Abstract

The utility model discloses an intelligent current limiting protector comprising a remote controller, a time relay and a current controller, which are mutually connected in parallel, and a remoter corresponding to the remote controller, wherein, the parallel circuit is connected in series with an AC (alternating current) contactor and a current transformer. Due to the adoption of the utility model, a current limiter immediately sends out trip signals to enable the time relay to prolong for a certain time when the current used by a user is larger than the rated current, and reminds a user of reducing the capacity through an alarm. When the capacity is not reduced within limiting time and continuously beyond the limit, the time relay enables a contactor to conduct power-cut operation; and after the power-cut, the user can restart the intelligent current limiting protector by starting the wireless remote control circuit, so that the current used by the user is effectively controlled, and the phenomenon that a user privately adds the capacity is eliminated.

Description

The intelligence limiting protector

[technical field]

The utility model relates to power supply control field, the particularly a kind of intelligent limiting protector that can control the user power utilization electric current.

[technical background]

Along with the rapid raising of living standards of the people, a lot of clients have bought large power-consuming equipment, cause supply power mode all advance to change.Except newly adding electrical equipment such as electric cooker, refrigerator, air-conditioning, individual enterprise industry (the low-voltage-powered client in rural area), the fast development of small processing factory in recent years, low moving client under can becoming by the dress farming is public below the local electricity department regulation 20KW at present, to control oneself more than the 20KM and set up the special-purpose client of change, but it is not high that client's fund, idea, security civilization electricity consumption at present come to understand, and causes low-voltage-powered client increase-volume privately (belonging to the promise breaking electricity consumption) serious consequence in full flourish.Be with many difficult points for the business census enumerator, the power capacity of many individual enterprise's industries is considerably beyond the application power capacity, the public change seriously of farming overloaded, even burn out, bring to power supply enterprise and to be difficult to have the situation under control and direct economic loss, electric equipment is existed bigger potential safety hazard, make the public residential electricity consumption quality that becomes of farming can not get effective guarantee.

[summary of the invention]

The purpose of this utility model is exactly in order to solve problems of the prior art, proposes a kind of intelligent limiting protector, can control the user power utilization electric current, stops the phenomenon of the private increase-volume amount of user.

For achieving the above object; the utility model patent has proposed a kind of intelligent limiting protector; comprise receiver of remote-control sytem parallel with one another, the time relay and current controller, above-mentioned parallel circuits is connected with the A.C. contactor summation current transformer, also comprises and the corresponding remote controller of receiver of remote-control sytem.

As preferably, described current transformer adopts the cut-off current instrument transformer.

As preferably, described remote controller adopts wireless crawl remote controller.

As preferably, the described time relay adopts electronical time relay.

The beneficial effect of the utility model patent: after adopting the utility model, when the user uses electric current greater than current limit, flow restricter sends trip signal immediately and makes time relay time-delay a period of time, and remind the user to reduce capacity by alarm, in limiting time, do not reduce capacity and continuously super the appearance, chien shih contactor power failure action during the time relay, the back client that has a power failure can start radio remote control circuit and open again, effectively control user's electricity consumption electric current, stopped the phenomenon of the private increase-volume amount of user.

Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.

[description of drawings]

Fig. 1 is the circuit theory diagrams of the utility model intelligence limiting protector.

[embodiment]

Consult Fig. 1; the intelligence limiting protector; comprise receiver of remote-control sytem YKJSQ parallel with one another, time relay KT and current controller A, above-mentioned parallel circuits is connected with A.C. contactor KM summation current transformer TA, also comprises the corresponding remote controller with receiver of remote-control sytem YKJSQ.Described current transformer TA adopts the cut-off current instrument transformer.Remote controller adopts wireless crawl remote controller, and release-push disconnects immediately.Time relay KT adopts electronical time relay.

Declaring 10kw capacity reduced current as a client is 18.8A, and we are transferred to 19A (scalable size of current) to cut-off current instrument transformer TA, and electronical time relay KT is adjusted into 30 minutes.The client is that 19A is safe with interior use at normal current so, if current limliting current transformer TA can respond to action when surpassing 19A, make time relay KT action, can adopt simultaneously alarm signal (as sound, light, voice suggestion etc.) to start and remind client's rational utilization of electricity, because we harmonize time relay KT in advance is 30 minutes, the delay switch of time relay KT can not move, so the A.C. contactor KM on control bus road can not move, the client can continue normal electricity consumption; Use if the client continues supercurrent again, time relay K T delay switch action during so by 30 minutes is moved and the disconnection general supply A.C. contactor KM on control bus road.When electricity is sent in recovery,, make the A.C. contactor KM action power turn-on (delay switch of time relay KT restores because of dead electricity position) on control bus road, make the client recover normal electricity consumption by the RPB on the common Digiplex.The supervision of power consumption personnel also can carry out wireless remote control as required, drop into or withdraw from intelligent limiting protector.

This intelligent limiting protector can Control current 0.1A to 600A low-voltage-powered client; the intelligence limiting protector adopts the power failure device of reporting to the police in advance; mode by the restriction electric current is controlled client's electricity consumption electric current; reach user's normally electricity consumption after the increase-volume privately; the normal electricity consumption of ability after must adjusting the flow restricter electric current or install special use by power supply enterprise's increase-volume makes power department can reach the controlled purpose that is.Alleviated business census enumerator labour intensity and difficult point, improved the public residential electricity consumption quality that becomes of farming, reduced the unnecessary economic loss of power supply enterprise, improved economic benefit, accomplished that science power supply, security civilization electricity consumption are target.Alleviated the low moving unnecessary economic loss of client.Make the client accomplish saving, science, safety utilization of electric power.

Whenever the client applies for capacity (kw) reduced current (A), being reacted to the electronic current table by the current transformer current signal reacts electronical time relay and alarm (general alarm 30 minutes) again and reacts A.C. contactor (stopping sending electro ultrafiltration) and radio remote control circuit (client send electricity and effect out of service again) again, using method safety is simple again, and (table meter) leading-out terminal in this device dress table can be sealed up in the scope.

9 peak times of power consumption in month of August 7 month June have been spent every year; these farming public affairs can make the client decontrol electricity consumption when becoming the power consumption equipment that bears the client fully; (adopt ordered electric, keep away the peak allow electricity or the like principle) this wants the supervision of power consumption personnel to go the client to go once; start radio remote control circuit; intelligent limiting protector is withdrawed from remote control, feels less or reduction unnecessary waste of electric power enterprise and loss.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; the technical staff who is familiar with wooden field works as and can do various corresponding changes in mountain and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of wooden utility model.

Claims

1. intelligent limiting protector; it is characterized in that: comprise receiver of remote-control sytem parallel with one another (YKJSQ), the time relay (KT) and current controller (A); above-mentioned parallel circuits is connected with A.C. contactor (KM) summation current transformer (TA), also comprises and the corresponding remote controller of receiver of remote-control sytem (YKJSQ).

2. intelligent limiting protector as claimed in claim 1 is characterized in that: described current transformer (TA) adopts the cut-off current instrument transformer.

3. intelligent limiting protector as claimed in claim 1 is characterized in that: described remote controller adopts wireless crawl remote controller.

4. as claim 1 or 2 or 3 described intelligent limiting protectors, it is characterized in that: the described time relay (KT) adopts electronical time relay.