CN201185340Y - Distribution transformer anti-theft alarm protection device - Google Patents

Abstract

The utility model relates to a distribution transform anti-theft alarm protector. In the protector, each low-voltage power distribution transformer comprises one to three sets of contactors, fuses and residual current action protectors; the device is characterized in that each low-voltage power distribution box is provided with a power distribution box little smart or mobile phone; the shortcut buttons of each power distribution box little smart or mobile phone are connected with the normally closed auxiliary contacts of the contactors in an outlet circuit; the charging power supply of the power distribution box little smart or mobile phone is parallelly connected with a distribution transform power supply; each power distribution box little smart or mobile phone has communication with the little smart or mobile phone in the duty room. The device can accurately and reliably report the distribution transform areas which suffer from power-off to the operator on duty upon distribution transform power-off, so that the operator quickly arrives at the site, so as to prevent the distribution transform from theft.

Description

Distribution transformer anti-theft alarm protection device

technical field

The utility model relates to a distribution transformer anti-theft alarm protection device.

Background technique

At present, the acquisition of power outage information for the vast rural distribution transformers only depends on the user's repair report, but the user's telephone penetration rate, familiarity with the repair call number and repair initiative determine the repair report rate and timeliness of the repair report. In particular, the theft of distribution transformers often occurs in the middle of the night, and the power supply department often cannot get instant information about the power failure in the low-voltage station area, so that the thieves have plenty of time to commit crimes.

Contents of the invention

The purpose of this utility model is to provide a distribution transformer anti-theft alarm protection device, which can report the distribution transformer station area where the power failure occurs to the personnel on duty in a timely, accurate and reliable manner when the distribution transformer is powered off, so that the personnel on duty can rush to the scene quickly. Thus, the distribution transformer can be prevented from being stolen.

The technical scheme that the utility model adopts is:

Distribution transformer anti-theft alarm protection device, in which each low-voltage distribution transformer includes 1 to 3 groups of contactors, fuses and residual current action protectors, and a distribution box PHS or mobile phone is installed in each low-voltage distribution box. The shortcut key button of the PHS or mobile phone in each distribution box is connected with the normally closed auxiliary contact of the contactor in the outlet circuit, the charging power supply of the PHS or mobile phone in the distribution box is connected in parallel with the distribution transformer power supply, and each distribution box The PHS or mobile phone communicates with the PHS or mobile phone in the duty room.

The PHS or mobile phone in the distribution box is provided with a specific number, which corresponds to the address in the phone book of the PHS or mobile phone in the duty room.

Each group of contactors of each low-voltage distribution transformer is connected in series or in parallel with the shortcut button of the PHS or mobile phone in the distribution box.

Each group of residual current-operated protectors of each low-voltage distribution transformer is equipped with a trip recovery circuit, and the ringing drive circuit of the PHS or mobile phone in the distribution box is connected in series with the micro-relay and then recovered from the tripping of each group of residual current-operated protectors. The circuits are connected in parallel, and each group of trip recovery circuits is connected in series with a diode.

The rural power supply distribution transformer area in China basically adopts the TT power supply mode, and installs residual current action protection devices and fuses. Basically, there are contactors in the outlet circuits. The contactors in the low-voltage outlet circuits of the distribution transformer in the utility model Connector: contactor KM1, contactor KM2, contactor KM3 normally closed auxiliary contacts are connected in series to the PHS or mobile phone shortcut button in the distribution box, and the charging power supply of the PHS or mobile phone in the distribution box is connected to the distribution power supply. When power is lost, each normally closed contact is closed, and the set PHS or mobile phone shortcut button is turned on, and the PHS or mobile phone in the distribution box will report to the PHS or mobile phone in the duty room according to the set number. According to the number report, the on-duty personnel will get the message of power outage of the distribution transformer according to the name of the distribution transformer on the caller ID, so as to respond quickly. The utility model can also connect contactor KM1, contactor KM2 and contactor KM3 normally closed auxiliary contacts in parallel to the shortcut key buttons of the PHS or mobile phone in the distribution box. The on-duty personnel promptly deal with outgoing line faults to ensure power supply. In the utility model, the ringing driving circuit of the PHS or the mobile phone in the power distribution box is connected in series with the micro-relay, and then connected in parallel with the trip recovery button circuit of the residual current protector. The trip recovery button circuit is also provided with a diode and a trip recovery button. Parallel connection with the internal circuit of the residual current action protector can also realize remote closing and restoration of power supply, which can greatly reduce the work intensity of the on-duty personnel. The function of setting the diode can prevent other outlet circuits from being linked when manually restoring power to a single outlet.

Since the signal transmission adopts the "PHS or mobile phone" communication technology, the technology is mature and reliable, and the operation is stable. In particular, there is no need to build another wireless sending and receiving device, and a separate system is developed, so the construction cost is low, and the operation and maintenance cost is low. The caller ID function is required, no call charges are required, and the cost is low.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the circuit schematic diagram of the utility model.

Figure 2 is a diagram of the series connection between the PHS and the contactor in the distribution box.

Fig. 3 is a schematic diagram of the network connection of the present invention.

Fig. 4 is a schematic diagram of installation of the utility model in a distribution box.

Fig. 5 is a schematic diagram of a remote recovery power supply circuit.

Among them: TM-distribution transformer; RCD-residual current action protector for three-way low-voltage outlet; KM1, KM2, KM3-three-way contactor; trip recovery button on SB-RCD; V-diode; K-miniature relay; PASn POWER- PHS charging power supply; 1- normally closed auxiliary contacts of contactors; 2- fuses for outgoing lines; 3- outgoing cables; PSA- duty room PHS; PSA1, PSA2, PSA3... ....PSAn- distribution box PHS.

Detailed ways

As shown in Figures 1, 2, 3, 4 and 5, the power distribution transformer area adopts the TT power supply mode, and installs the residual current action protection device RCD and fuse 2, and basically has a contactor in the outlet circuit. A PHS PSAn is installed in the low-voltage distribution box of the distribution transformer TM, and the normally closed auxiliary contacts 1 of the contactor KM1, contactor KM2, and contactor KM3 in the low-voltage outlet circuits of the distribution transformer TM are connected in series or in parallel to the The PHS PSAn shortcut button of the distribution box at the low-voltage side distribution box of each distribution box, the charging power supply PASn POWER of the PHS PSAn of the distribution box is connected to the power supply of the distribution transformer in parallel, and the PHS PSAn of the distribution box has a specific number, and Corresponding to the number in the number book of the PHS PSA in the duty room, the ringing drive circuit of the PHS PSAn in the distribution box is connected in series with the micro relay K and then tripped with the residual current action protectors RCD1, RCD2, and RCD3 of the three low-voltage outgoing lines The recovery button circuit is connected in parallel. The trip recovery circuit is equipped with a diode V and a trip recovery button SB, which is inherent in the residual current action protector RCD. Since the utility model adopts the "PHS or mobile phone" communication technology for signal transmission, the technology is mature and reliable, and the operation is stable. In particular, it does not need to build another wireless sending and receiving device and develop another system, so the construction cost is low, and the operation and maintenance cost is low. , due to the only caller ID function, there is no call charge, and the cost is low. The utility model connects the ringing driving circuit of the PHS PSAn of the power distribution box in series with the coil of the micro relay K, and the normally open contact of the micro relay K is connected with the trip recovery button SB of the residual current action protector RCD of the three-way low-voltage outgoing line respectively. Through the parallel connection of the additional diode V, it is also possible to realize remote closing and power supply restoration. The function of setting V can prevent other outgoing circuits from being linked when manually restoring power supply to a single outgoing line. The device can greatly reduce the work intensity of the on-duty personnel through remote operation.

The utility model works like this: once the distribution transformer loses power, each normally closed contact is closed, and the shortcut key button of the set PHS PSAn of the distribution box is turned on, and the PHS PSAn of the distribution box will press the set The number is reported to the PSA PSA number in the duty room, and the duty personnel will get the message of power failure of the distribution transformer according to the distribution name of the caller ID, so as to respond quickly. After the residual current action protector RCD trips, you can call the PHS PSAn of the distribution box through the PSA in the duty room or other telephones, and the normally open contact of the miniature relay K connected in series with the ringing drive circuit of the PHS PSAn in the distribution box is closed. And connect the trip recovery circuit of the residual current action protector RCD, so as to realize the remote closing and recovery of power supply.

Claims (4)

1, distribution transforming burglar alarm protective device; wherein each low voltage distribution transformer comprises 1～3 winding tentaculum, fuse and RCD; it is characterized in that in each low-tension distribution box, being provided with a distribution box Personal Handyphone System or mobile phone; the shortcut button of every distribution box Personal Handyphone System or mobile phone is connected with the normally closed auxiliary contact of contactor in going out line loop; the charge power supply of distribution box Personal Handyphone System or mobile phone and distribution transforming power supply also connect, and every distribution box Personal Handyphone System or mobile phone and night shift room Personal Handyphone System or mobile phone carry out communication.

2, distribution transforming burglar alarm protective device according to claim 1 is characterized in that described distribution box Personal Handyphone System or mobile phone are provided with particular number, and corresponding with the address in the directory of night shift room Personal Handyphone System or mobile phone.

3, distribution transforming alarm protecting apparatus according to claim 1 and 2 is characterized in that linking to each other with the shortcut button of distribution box Personal Handyphone System or mobile phone behind each winding tentaculum serial or parallel connection of each low voltage distribution transformer.

4, distribution transforming alarm protecting apparatus according to claim 3; the every group of RCD that it is characterized in that each low voltage distribution transformer is equipped with the tripping operation restore circuit; the ring drive circuit of distribution box Personal Handyphone System or mobile phone with recover the loop with the tripping operation of every group of RCD again after midget relay is connected and connect, every group of tripping operation recovers the loop and is connected in series a diode.

Images