CN2595025Y

CN2595025Y - Inductive high-voltage charge display locking device

Info

Publication number: CN2595025Y
Application number: CN 02283589
Authority: CN
Inventors: 徐冰; 张金龙; 童志伟; 王君
Original assignee: SHANGHAI HIGHLYN POWER ENGINEERING RESEARCH INSTITUTE
Current assignee: SHANGHAI HIGHLYN POWER ENGINEERING RESEARCH INSTITUTE
Priority date: 2002-12-25
Filing date: 2002-12-25
Publication date: 2003-12-24
Anticipated expiration: 2012-12-25

Abstract

The utility model relates to an inductive high-voltage shutting device with electrification display particularly used in a high-voltage switch cabinet. The utility model is characterized in that the utility model is composed of a display and three sensors, wherein the three sensors are positioned outside the display and are connected with the display; the display is composed of a back cover, a mainboard, a power panel, a signal plate, a front cover and relevant software; the mainboard is positioned on the front cover; the power panel and the signal plate are positioned in the back cover; the signal plate are externally connected with the three sensors and is internally connected with the mainboard; the power panel is externally connected with a 220 volt power supply and is internally connected with the mainboard; the front cover is positioned on the back cover; each of the sensors is composed of an outer cover, a base, a socket, a plug and a signal wire; the top part of the outer cover is a semicircular surface, and the lower part is a cylindrical surface; the signal wire is connected with the socket on the base through the plug. The utility model has the advantages that the utility model can accurately judge and display whether an electrified body is electrified, or the electrified body is in the state of open-phase electrification while the high-voltage electrified body is not touched, the utility model has convenience of use, maintenance and overhauls, and the utility model is not easily damaged.

Description

The charged demonstration locking device of induction-type high-voltage

Technical field

The utility model relates to the charged demonstration locking device of a kind of induction-type high-voltage, is exclusively used in the high-tension switch cabinet, belongs to electrification in high voltage Display Technique field.

Background technology

Domestic and international existing ac high-voltage switch cubicle all adopts the charged display unit of contact, based on post insulator style, the shortcoming that this device exists is: the one, and transducer and a circuit link together, the trouble hunting difficulty, the 2nd, regularly to carry out high voltage test to transducer, not only inconvenience but also damage easily can not guarantee normal operation use.

Summary of the invention

To be that invention is a kind of can realize not contacting high-voltage charged body in high-tension switch cabinet and accurately judge, show the charged demonstration locking device of induction-type high-voltage that electrified body is whether charged the purpose of this utility model.

For realizing above purpose, the technical solution of the utility model provides the charged demonstration locking device of a kind of induction-type high-voltage, its characteristics are, it is made up of display, three transducers, three transducers place the display outside, be connected in display, described display is made up of bonnet, mainboard, power panel, signal plate, protecgulum and related software, mainboard places on the protecgulum, and power panel, signal plate place in the bonnet, external three transducers of signal plate, in connect mainboard, the external 220 volts of power supplys of power panel, in connect mainboard, protecgulum places on the bonnet; Described transducer is made up of outer cover, base, socket, plug, holding wire, and the outer cover top is half garden face, and the bottom is that cylinder combines, and holding wire links to each other with socket on the base by plug.

Whether charged transducer of the present utility model adopts the electric field induction mode contact with a circuit, so needn't carry out high voltage test, display adopts the phase-detection technology, use chip microprocessor solution accurate judgement and the demonstration with the phase shortage electriferous state.

The utility model has the advantages that and to realize not contacting high-voltage charged body and accurately judge, show whether charged and phase shortage electriferous state of electrified body, use, safeguard, maintenance is not convenient fragile.

Description of drawings:

Fig. 1 is the charged demonstration locking device of an induction-type high-voltage structural representation;

Fig. 2 is the display device structure schematic diagram;

Fig. 3 is the sensor construction schematic diagram;

Fig. 4 is a display protecgulum schematic diagram;

Fig. 5 is the display main board circuit diagram;

Fig. 6 is the chip microprocessor program flow diagram;

Embodiment:

As shown in Figure 1, be the charged demonstration locking device of induction-type high-voltage structural representation, it is made up of display 1, three transducers 2, and three transducers 2 place display 1 outside, are connected in display 1.

As shown in Figure 2, be the display device structure schematic diagram, display 1 is made up of bonnet 3, mainboard 4, power panel 5, signal plate 6, protecgulum 7 and related software, mainboard 4 places on the protecgulum 7, and power panel 5, signal plate 6 place in the bonnet 3, signal plate 6 external three transducers 2, in connect mainboard 4, power panel 5 external 220 volts of power supplys, in connect mainboard 4, protecgulum 7 places on the bonnet 3.

As shown in Figure 3, be the sensor construction schematic diagram, transducer 2 is made up of outer cover 8, base 9, socket 10, plug 11, holding wire 12, and outer cover 8 tops are half garden face, and the bottom is that cylinder combines, and holding wire 12 links to each other with socket 10 on the base 9 by plug 11.

As shown in Figure 4, be display protecgulum schematic diagram, covered three A, B, C indicator light respectively with A mutually, the corresponding analog line driver output circuit of B phase, C connects, and is equipped with power supply and tutorial light below three A, B, the C indicator light.

As shown in Figure 5, be the display main board circuit diagram, mainboard 4 is made up of 1 chip microprocessor, 9 operational amplifiers, 3 NAND gate, 1 analog line driver, 1 three terminal integrated voltage stabilizer, 5 light-emitting diodes, 1 buzzer, 1 relay,

Wherein:

Operational amplifier IC1A, NAND gate IC4A form A phase transducer self-checking circuit;

Operational amplifier IC1B, NAND gate IC4B form B phase transducer self-checking circuit;

Operational amplifier IC1C, NAND gate IC4C form C phase transducer self-checking circuit;

Operational amplifier IC12A, IC2B form the amplification of A phase signals, filter circuit;

Operational amplifier IC12C, IC2D form the amplification of B phase signals, filter circuit;

Operational amplifier IC13A, IC3B form the amplification of C phase signals, filter circuit.

Chip microprocessor IC5 forms A, B, the detection of C three-phase signal, computing, differentiation part.

Analog line driver IC6 and light-emitting diode VD1-VD5, buzzer RF1, relay K G form demonstration, alarm, latch portion.

The relation of joining that connects of its internal circuit is: the input of operational amplifier IC1A, IC1B, IC1C links to each other with three transducers of outside respectively by the signal input wires terminal of display 1, is used for the input of transducer self-test signal.

The output of NAND gate IC4A, IC4B, IC4C links to each other with RB1, RB2, the RB4 port of chip microprocessor IC5 respectively, transducer self-test signal input chip microprocessor IC5.

The input of operational amplifier IC2A, IC2C, IC3A links to each other with three transducers of outside respectively by the signal input wires terminal of display 1, is used for the signal input.

The input of operational amplifier IC2B, IC2D, IC3B links to each other with AN0, AN1, the AN2 port of chip microprocessor IC5 respectively, the charged signal input of electrified body chip microprocessor IC5, uses for detection, computing, differentiation.

The RCO of chip microprocessor IC5, RC1, RC2, RC3, RC4, RC5 port link to each other with six inputs of analog line driver, six outputs of analog line driver link to each other with light-emitting diode VD1-VD5, buzzer RF1, the relay K G that demonstration, alarm, locking are used respectively, finish driving, the output of signal.

As shown in Figure 6, be the chip microprocessor program flow diagram, at first the signal to AN0, AN1, AN2, RB1, six port inputs of RB2, RB4 detects, and is undesired as transducer and amplifier, then detects repeatedly.

Normal when detecting, then input signal is carried out computing, the result of computing is represented in the mode of number, is transferred to subordinate and judges that A has electricity then to drive RCO mutually in this way, the corresponding indicator light of promotion is glittering, differentiate successively, promote corresponding indicator light, when three-phase does not have electricity simultaneously, then promote green light Chang Liang, promote RC4 simultaneously and make relay K G work, release information is provided.

Claims

1. charged demonstration locking device of induction-type high-voltage, it is characterized in that, it is by display (1), three transducers (2) are formed, three transducers (2) place display (1) outside, be connected in display (1), described display (1) is by bonnet (3), mainboard (4), power panel (5), signal plate (6), protecgulum (7) and related software are formed, mainboard (4) places on the protecgulum (7), power panel (5), signal plate (6) places in the bonnet (3), external three transducers of signal plate (6) (2), in connect mainboard (4), the external 220 volts of power supplys of power panel (5), in connect mainboard (4), protecgulum (7) places on the bonnet (3); Described transducer (2) is made up of outer cover (8), base (9), socket (10), plug (11), holding wire (12), outer cover (8) top is half garden face, the bottom is that cylinder combines, and holding wire (12) links to each other with socket (10) on the base (9) by plug (11).

2. the charged demonstration locking device of induction-type high-voltage according to claim 1, it is characterized in that, described mainboard (4) is by 1 chip microprocessor, 9 operational amplifiers, 3 NAND gate, 1 analog line driver, 1 three terminal integrated voltage stabilizer, 5 light-emitting diodes, 1 buzzer, 1 relay is formed, the relation of joining that connects of its internal circuit is: operational amplifier IC1A, IC1B, the input of IC1C links to each other with three transducers of outside respectively by the signal input wires terminal of display (1), NAND gate IC4A, IC4B, the output of IC4C respectively with the RB1 of chip microprocessor IC5, RB2, the RB4 port links to each other, operational amplifier IC2A, IC2C, the input of IC3A links to each other with three transducers of outside respectively by the signal input wires terminal of display (1), operational amplifier IC2B, IC2D, the output of IC3B respectively with the AN0 of chip microprocessor IC5, AN1, the AN2 port links to each other, the RC0 of chip microprocessor IC5, RC1, RC2, RC3, RC4, the RC5 port links to each other with six inputs of analog line driver, six outputs of analog line driver respectively with demonstration, alarm, the light-emitting diode VD1-VD5 that locking is used, buzzer RF1, relay K G links to each other.