CN1295719C

CN1295719C - Romote intelligent type transformer

Info

Publication number: CN1295719C
Application number: CNB2003101102714A
Authority: CN
Inventors: 郑玉庆; 黄训城; 肖自莲; 王克太; 何建东
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-30
Filing date: 2003-12-30
Publication date: 2007-01-17
Anticipated expiration: 2023-12-30
Also published as: CN1556535A

Abstract

The present invention relates to a remote intelligent transformer which is characterized in that an intelligent control box is arranged at the low voltage part of the lateral part or the top part of the transformer. The outer part of a box body is provided with a locking control switch. An alternating current contactor, a current mutual inductor, a control integrated module, a display and an electronic energy meter are arranged in the box body, wherein the alternating current contactor is connected with the low voltage wire outlet end of the transformer. The current mutual inductor is connected with the wire inlet ends of the integrated control module and the electronic energy meter through the output wires of the transformer. The display is connected with the integrated control module. A meter reading warning device in the integrated control module controls output through the contact point of a control relay and is connected with the electronic energy meter through an RS-485 interface. The meter reading warning device is used for remote communication connection through a GSM public communication network. With the transformer of the present invention, the data of the electric power consumption of the remote transformer can be controlled in an intellectualized mode, such as automatic monitoring, automatic alarm, remote metering, remote meter reading, management for multiple fee rates, SMS communication, etc.

Description

Long-distance intelligent type transformer

Technical field:

The invention belongs to the power transformer technical field, is a kind of long-distance intelligent type transformer.

Background technology:

In technique known, traditional power transformer only can realize with high pressure conversion being the function of low pressure, but when transformer is worked, but can't detect the variation of voltage, electric current in the transformer running, especially under the extra-heavy situation of transformer, can't cut off and adjust, make the transformer can only overload operation, surpass certain limit after, easily cause transformer to damage, influence normal power supply, also might burn user's electric equipment.Next is that this power transformer does not possess any warning and communication function, breaks down or can't solve at the scene of arriving in the very nick of time when stealing electrical phenomena, has caused the stolen situation of long-time power outage or equipment, electric energy.In addition, kilowatt-hour meter is installed on the transformer, can only regularly be checked meter to the scene by administrative staff, has increased personnel's labour intensity.

Summary of the invention:

The purpose of this invention is to provide a kind ofly can monitor automatically, report to the police automatically the electricity consumption situation of transformer, the long-distance intelligent type transformer of protection automatically, long-distance metering, remote meter reading, many tariff managements, SMS communication.

Realize that the technical scheme that purpose of the present invention is taked is: at transformer sidepiece or top low pressure place, be provided with intelligent control box, the casing exterior arrangement has lock-controlled switch, be provided with A.C. contactor, current transformer, integrated control module, display, electronic electric energy meter in the casing, wherein, A.C. contactor is connected on the transformer low voltage leading-out terminal, current transformer is connected on the end of incoming cables of integrated control module and electronic electric energy meter by each phase output line of transformer, and display is connected with integrated control module.Integrated control module is made up of electronic sensor, control relay, check meter warning device and single-chip microcomputer, check meter warning device by relay tip control output, and dock with electronic electric energy meter by the RS-485 interface, and carry out the telecommunication connection by the GSM public communication network.

Long-distance intelligent type transformer according to such scheme is made has following technique effect: one, can realize to long-range transformer power consumption data monitor automatically, long-distance metering, and can carry out portable SMS communication by mobile phone; Two, overload, the excess temperature of transformer are reported to the police automatically and automatically the protection; Three, by electronic electric energy meter, can realize the management of remote meter reading and the many rates of pre-payment; Four, have antitheft electric work energy, can effectively ensure transformer equipment and Electrical Safety.

Description of drawings:

Utilize accompanying drawing to further describe embodiments of the invention below;

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a circuit diagram of the present invention.

Embodiment:

Referring to Fig. 1, Fig. 2, long-distance intelligent type transformer of the present invention is sidepiece or the top low pressure place at transformer 1, is provided with intelligent control box 2, and the casing exterior arrangement has lock-controlled switch 3, can play the effect of inner components and parts of protection and antitheft electricity; Box house is made of electric elements such as A.C. contactor 4, current transformer 5, intelligent control module 6, display (not shown), electronic electric energy meters, wherein, A.C. contactor 4 is connected on the low pressure leading-out terminal of transformer 1, to realize the automatic switching of supply line; Current transformer 5 is connected on the terminals of integrated control module 6 and electronic electric energy meter 7 by transformer 1 each phase output line, be used to gather current signal, and can gather, analyze and handle accordingly data such as the power of transformer, electric current, voltage, load, temperature by integrated control module 6; Display is connected with integrated control module 6, is used to show whether the operating state of transformer 1 is normal.

Integrated control module 6 is made up of electronic sensor, control relay 6-3, check meter warning device and single-chip microcomputer.Wherein, electronic sensor comprises temperature sensor 6-1 and unpacking transducer 6-2, and temperature sensor 6-1 is seated in the transformer and is connected with integrated control module 6 terminals, can carry out check and analysis to the operating temperature data of transformer 1; The transducer 6-2 that unpacks connects lock-controlled switch 3, has only the private key of use just can open control cabinet; The warning device of checking meter is by control relay 6-3 contact control output, and dock with electronic electric energy meter 7 by the RS-485 interface, can measure the transformer power consumption by electronic electric energy meter 7, and be sent to administrative staff and control microcomputer by the data and the transformer fault signal of warning device of checking meter with electric energy meter, to realize electric energy metrical, remote meter reading and the management of power use.Single-chip microcomputer is used for the technical data of the existing transformer of storage computation, and detected data are carried out analyzing and processing, notes abnormalities in time to report to the police or control power supply output break-make.In this case, check meter warning device and single-chip microcomputer are installed in (not shown) in the integrated control module, and the warning device of checking meter is that product are directly purchased in market, and its structure is not being given unnecessary details.

The operation principle of long-distance intelligent type transformer: when transformer overload, electric current or oily temperature were higher than set point, integrated control module 6 sent signal, and supply line is cut off in A.C. contactor 4 actions, realizes automatic load removal, reaches the purpose of current limliting, limited capacity.When the load or temperature reach just often, then realize closing a floodgate automatically or by Communication Control, guarantee the circuit normal power supply, behind A.C. contactor 4 continuous switchings 5 times, it is normal that load can not reach, integrated control module 6 sends signal, cut off supply line, no longer close a floodgate, send chimes of doom simultaneously, and to be demonstrated by signal lamp on display be why to hinder, utilize the mobile phone short message function to signal to administrative staff, utilize communication function to signal to the remote monitoring computer simultaneously, notify administrative staff to handle, make transformer 1 recover normal operation to the scene by the monitor staff.When transformer 1 during in normal operation, the electricity consumption situation can be sent to supervisory control comuter by communication function at regular intervals, the electricity consumption peak valley is analyzed, and the day part power consumption added up, realize of the metering of long-range many rates to power consumption, alleviate administrative staff's labour intensity, reduce electric cost.

Claims

1, a kind of long-distance intelligent type transformer, it is characterized in that: at transformer [1] sidepiece or top low pressure place, be provided with intelligent control box [2], the casing exterior arrangement has lock-controlled switch [3], be provided with A.C. contactor [4], current transformer [5], integrated control module [6], display, electronic electric energy meter [7] in the casing, wherein, A.C. contactor [4] is connected on the low pressure leading-out terminal of transformer [1], is used to realize the automatic switching of supply line; Current transformer [5] is connected on the terminals of integrated control module [6] and electronic electric energy meter [7] by each phase output line of transformer [1], is used to gather current signal; Integrated control module [6] is used for data such as the power, electric current, voltage, load, temperature to transformer and gathers, analyzes and handle; Display is connected with integrated control module [6], is used to show whether the operating state of transformer [1] is normal; Electronic electric energy meter [7] is used for the power consumption of transformer [1] is measured, by the temperature sensing [6-1] of integrated control module [6], unpack transducer [6-2], control relay [6-3] and check meter warning device and single-chip microcomputer, and the RS-485 communication interface by the GSM public communication network dock with electronic electric energy meter [7], realize to transformer [1] operating temperature, power consumption, check meter and the communication and the realization of the Long-distance Control of operation conditionss such as abnormal alarm or power supply output break-make are controlled.

2, long-distance intelligent type transformer according to claim 1, it is characterized in that: described integrated control module [6] is made up of electronic sensor, control relay [6-3], check meter warning device and single-chip microcomputer, wherein: electronic sensor comprises temperature sensor [6-1] and unpacking transducer [6-2], temperature sensor [6-1] is seated in the transformer [1] and is connected with integrated control module [6] terminals, is used for the operating temperature data of transformer [1] are carried out check and analysis; The transducer [6-2] of unpacking connects lock-controlled switch [3], is used to avoid theft; The warning device of checking meter is by the control output of control relay [6-3] contact, various parameter signals convert digital signal to by integrated control module [6], and and microcontroller communication, the warning device of checking meter sends alarm signal or fault-signal, single-chip microcomputer is monitored alarm signal, and signal is handled, and communicates by GSM public communication network and setting mobile phone then, transformer [1] is made the order of whether cutting off, realize telecommunication control transformer [1].