CN2329010Y

CN2329010Y - Address report device for line short curcuit accident

Info

Publication number: CN2329010Y
Application number: CN 97217302
Authority: CN
Inventors: 蔺兰中
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-06
Filing date: 1997-05-06
Publication date: 1999-07-14
Anticipated expiration: 2007-05-06

Abstract

The utility model relates to an address report device for line short circuit accidents, which is composed of a detector, a transponder and a receiver. When the short-circuit current on a transmission line is detected, the detector drives a transmitting circuit to send out wireless signals. After the transponder receives the signal, the signal is internally amplified, a voice memory circuit inputs the pre-recorded voice address information into the transmitting circuit, and the transmitting circuit is modulated to send out FM signal. When the receiver at the far place receives the FM signal, voice address information signal is demodulated after the FM signal is internally amplified, which helps personnel to inquire and record the areas where accidents happen by reproducing and recording, so that faults are removed promptly and the normal running of the transmission lines is ensured.

Description

A kind of line short accident address informing device

The utility model provides a kind of line short accident address informing device, can be used as the addressing warning system of power supply department transmission line of electricity tripping operation accident.

The ultra-high-tension power transmission line of electric power system.10KV transmission line of electricity particularly, more because of the load transformer of hanging, circuit is longer, when being short-circuited the tripping operation accident, brought difficulty to seeking the personnel of looking into, promptly prolonged power-on time, consume more man power and material again, seriously influenced the ordinary production and the people's lives electricity consumption of industrial or agricultural.The utility model is exactly that the way of manually patrolling when changing the line short tripping operation provides a kind of simple in structure, cheap, can inform the warning device of location, place where the accident occurred fast.Help the power supply personnel to fix a breakdown rapidly and recover to send.Guarantee worker, the ordinary production of agricultural and the household electricity of numerous people.

The technical solution adopted in the utility model is: with the novel line short accident address informing device that provides of this reality.Make the short-circuit detecting device of power supply department transmission line of electricity, can know the scene of short circuit accident rapidly, instant fixing a breakdown restores electricity.Alleviate power supply patrolman's workload greatly, guarantee the normal operation of transmission line of electricity.

Its major technique feature is: flow to C point by the A point through transmission line of electricity L by power supply M shown in the theory diagram of this device of Fig. 1, when the B point was short-circuited fault, the detecting element mutual inductor H that is suspended on the detecting device in the place ahead sensed the especially big electric current that produces because of short circuit on the circuit at this moment.The electric current of mutual inductor generation simultaneously reaches the required current/voltage of start-up circuit on the detecting device, and start-up circuit promotes radiating circuit, and radiating circuit is outwards launched the high-frequency signal that has carrier wave.Be installed near the detecting device transponder after receiving circuit outwards receives on the detecting device wireless signal of emission, amplify through start-up circuit promotion memory language circuit and radiating circuit through inside, memory language circuit is input to the address information with the language establishment of typing in advance in the radiating circuit, modulation transmitter is the stronger FM signal of emission outwards, and receiver can be installed in apart from accident point power supply management station or transformer station far away.When receiving circuit receive transponder emission have the signal of address information the time, put through inner height, after putting in the mixing,, the audio frequency address information one tunnel that demodulates is sent into the scene that staff's accident is informed in the playback circuit playback through audio output circuit.Another road is sent into recording device and is recorded, and is convenient to the staff and inquires about and record afterwards, and this device is best suited for and detects the transmission line of electricity that multiple branches is arranged, and which bar branched line what the power supply personnel are known rapidly short trouble is arranged is.Just can discharge fault recovery immediately and send electricity, the actual use way of this device as shown in Figure 2.This Device Testing device can be hung with on each bar branched line.A detecting device is equipped with a transponder.When wherein any circuit had short circuit accident, suspension detecting device on the line just can be worked and outwards be transmitted, and transponder after receiving signal is launched voice address information, after receiver is received the signal that has voice address information.Amplify demodulation and come out, which bar branched line what tell directly that the staff breaks down with language is.Being convenient to the staff looks into and patrols.This Device Testing circuit theory as shown in Figure 3, the short-circuit current that is suspended on the detecting element mutual inductor H induction of the detecting device on the circuit L reaches relay J ₁Working current the time, the closed V of J ₁, C ₁And V ₂C ₂The oscillator signal that produces is through C ₃Modulate emission module TWH631 outwards launches the carrier wave high-frequency signal.Resistor W scalable mutual inductance H supplies with the required working current of relay J, can regulate obtaining relay J according to the size of load current on the circuit like this ₁The working current that when line short, just can work, the circuit theory of transponder as shown in Figure 4, IC ₁Select receiver module TWH631 for use, after it receives the signal that detecting device sends, amplify through inside and to demodulate sound signal and send into IC ₂As restraining frequently and IC ₂When the frequency rule of itself setting is consistent, IC ₂Octal output high level, BC ₁The turn-on relay J J that works ₁, J ₂, closed C ₃, R ₂Constitute delay circuit.Can prolong J ₁, J ₂Closure time.IC ₂Main effect be to prevent that other signal from disturbing, and makes circuit erroneous action.J ₁, J ₂After the closure, memory language IC circuit ₃Work, the A pin is just exported the language address information of prior typing, and the language address information signal is through R ₄Send into the master-oscillator that HTD, D3BG2 form, D ₃Can be changed between hundreds of PF by number+PF with the variation of voice signal for becoming the diode capacity, from face the frequency of master-oscillator is changed accordingly, realize frequency modulation, the signal behind the frequency modulation is sent into BG ₃Base stage encourage amplification, amplify after C ₃Send into BG ₄High-power power valve carries out the final stage power amplification, is launched by antenna at last.The receiving circuit principle is IC as shown in Figure 5 ₁Be highly sensitive FM reception integrated circuit TDA7010A, after antenna receives the FM signal that transponder sends, through C ₅Send into IC, inside is carried out height and is put mixing, intermediate frequency filtering, and amplitude limit amplifies, and the language address information sound signal of being come out through demodulation by crus secunda output is sent into power discharging IC through C15 at last ₂Carry out power amplification, emit the language address information that transponder is sent by loudspeaker RL at last.Work as IC ₁After receiving the FM signal that transponder sends, the first pin current potential uprises V ₁(9015) V, 2 (9014) end, and power discharging IC is controlled in V3 (9014) conducting thus ₂Operating voltage, reach the noise elimination purpose.V ₃Conducting V ₄(9014) base stage obtains positive voltage also conducting simultaneously, relay J work.J ₁Closed.The power input that power supply+12V just can enter sound-track engraving apparatus makes sound-track engraving apparatus work.IC ₁The voice signal that demodulates is through C ₁₅-Lu sends into power discharging IC ₂Playback, one tunnel recording input end that can enter sound-track engraving apparatus is recorded.So that the staff is inquired about and record afterwards.

The utility model has the advantages that: simple in structure, cheap, use easy to operately, can effectively improve the work efficiency of power supply department inspection line fault, guarantee the normal operation of circuit, for the production of industrial or agricultural is given security.

Description of drawings:

Fig. 1, Fig. 2 are theory diagram of the present utility model.

Fig. 3 is the circuit theory diagrams of detecting device in the theory diagram of the present utility model.

Fig. 4 is the circuit theory diagrams of transponder in the theory diagram of the present utility model.

Fig. 5 is the circuit theory diagrams of receiver in the principle frame of the present utility model.

Fig. 6 is the assembling synoptic diagram of detecting device in the theory diagram of the present utility model.

Embodiment of the present utility model is described as follows in conjunction with figure:

As shown in Figure 1, the utility model is made up of detecting device, transponder, receiver three parts.Fig. 6 is the assembling synoptic diagram of detecting device.Mutual inductor (2), the circuit board (4) that all electronic devices and components are housed and circuit (5) all are encapsulated in the plastic casing (1), and with yellow epoxy resins water this order ground for prevent the long-term suspension of detecting device be exposed on the line avoid in the air rainwater soak the evil make moist, can prevent that again the circuit swing from causing the element welding loosening, influence detects.(3) be the lead that passes through mutual inductor (2), need stamp two holes that are fit to run through lead on the two sides of box like this.Can be during installation by the power transmission line radical how much hang up the relevant detection device.The circuit power that Yin Ben detects is through electrical equipment J at ordinary times ₁Contact J ₁-1 disconnects, so consumed power not fundamentally has only when big short-circuit current is arranged on the line short power transmission line, the electric current of mutual inductor H induction just makes relay work, J ₁-1 closure once, oscillatory circuit just of short duration work is outwards launched the primary wave signal, and is minimum because of the little power consumption of emissive power again.So one piece of heavy-duty battery is installed just can be used the long period.Bring great convenience to the maintainer like this.Repeater circuit shown in Figure 4.Can welding be installed to all elements and pack protection against the tide in the circuit board into preferably in the box, radiating portion can use with the can envelope, in order to avoid the forceful electric power ripple that produces damages the language memory circuit, transponder can be installed in the nearer switchgear building of detecting device and be equipped with accumulator, when waiting at ordinary times with powering after the civil power step-down.Simultaneously again to charge in batteries.After the line short tripping operation, accumulator can provide power supply power supply road work.It is shown in Figure 5 to press the acceptor circuit principle, can all components and parts be installed in the box of packing in the circuit board, reserves the power lead of controlling sound-track engraving apparatus work and the recording line that removes sound-track engraving apparatus recording input end.Battery feed gets final product in the outfit, has away from receiver as detection, transponder place, can increase the emissive power of transponder or set up simple and easy exterior aerial, increases the propagation distance of first line electric wave.

Use the utility model that the staff's of power supply department inspection line short accident work is improved greatly, the generation area of knowing accident is immediately fixed a breakdown and is recovered to send electricity, guarantees the ordinary production of industrial or agricultural and the normal electricity consumption of numerous people life.

Claims

1. line short accident address informing device, form by detecting device, transponder and receiver three parts, it is characterized in that: detecting device is equipped with current transformer H, current regulator W and working relay J, an audio oscillator circuit and a high-frequency signal transmitter T WH631 who forms by V1, V2; Transponder is equipped with high frequency receiving circuit IC1 and audio decoding circuit IC2, push the work forward circuit BG1, J, and record has the sound circuit IC3 of address information and the FM signal radiating circuit that is made of BG2, BG3, BG4; Receiver is by highly sensitive FM reception integrated circuit (IC) 1, amplifier circuit for sound frequency signal IC2, and loudspeaker RL and the recording control circuit that is made of V3, V4 relay J constitute.

2. according to the described a kind of line short of claim 1 address informing device, it is characterized in that: on the transmission line of electricity L that detecting device hangs on not with any object on the ground is connected, be equipped with on the detecting device induction current is passed to the current transformer H of current regulator W and relay J and the audio oscillator circuit that modulated high frequency signal transmitter TWH631 outwards launches the carrier wave high-frequency signal.