CN203049690U

CN203049690U - Automatic draining control device for transformer station

Info

Publication number: CN203049690U
Application number: CN 201220656141
Authority: CN
Inventors: 赵淮仑
Original assignee: YANSHI POWER SUPPLY CO Ltd
Current assignee: YANSHI POWER SUPPLY CO Ltd
Priority date: 2012-12-04
Filing date: 2012-12-04
Publication date: 2013-07-10
Anticipated expiration: 2022-12-04

Abstract

The utility model discloses an automatic draining control device for a transformer station, comprising a reed pipe type water level controller, a water pump motor and a controller. The reed pipe type water level controller is disposed in a water reservoir of the transformer station, and is provided with an upper water level reed pipe and a lower water level reed pipe. The water pump motor is connected to a three-phase power supply through a main contact of an AC contactor and an air switch. The controller comprises a power transformer, a rectification filter circuit, a three terminal regulator and a pulse trigger circuit. The upper water level reed pipe and the lower water level reed pipe of the reed pipe type water level controller are connected to the pulse trigger circuit. A coil of the AC contactor connected to the water pump motor is connected to a primary side of the power transformer. The automatic draining control device for a transformer station is advantageous in that the structure is simple and practicality is good; flood control and maintenance work for operators can be greatly facilitated; work efficiency is improved and popularization value is good.

Description

Transformer station's automatic drainage control device

Technical field

The utility model belongs to the automatic control technology field, especially relates to a kind of transformer station automatic drainage control device.

Background technology

At present, for the power equipment security of operation, reservoir is set to collect rainwater in the transformer station more, with water pump rainwater in the reservoir is discharged outside the station again.Yet reservoir is many in battery limits in standing, and operations staff's pump drainage of fetching boiling water in thundery sky access device district is very dangerous, if do not open water pump ponding is discharged outside the station, causes waterlogging again easily, therefore presses for a kind of automatic drainage control device.

Summary of the invention

For addressing the above problem, the purpose of this utility model provides a kind of transformer station automatic drainage control device, and it can be increased work efficiency according to the water level automatically controlled water pump draining in the reservoir.

For achieving the above object, the utility model adopts following technical scheme:

A kind of transformer station automatic drainage control device, it comprises dry-reed water level controller, pump motor and controller, the dry-reed water level controller is arranged in the reservoir in the transformer station, and the dry-reed water level controller includes water level tongue tube and following water level tongue tube; Pump motor is connected with the three phase supply power supply by main contacts, the air switch of an A.C. contactor; Controller comprises the power transformer that connects successively, current rectifying and wave filtering circuit, three terminal regulator and pulsed triggering circuit, pulsed triggering circuit comprises first d type flip flop, second d type flip flop, the last water level tongue tube of dry-reed water level controller, following water level tongue tube one end by lead respectively with the S of two d type flip flops end, R holds connection, the other end is connected with the three terminal regulator output by lead, the output of first d type flip flop is connected with coil one end of a relay by a triode, the coil other end of relay is connected with the three terminal regulator output, the output of second d type flip flop is connected to two Light-Emitting Diodes, and the coil of the A.C. contactor that links to each other with pump motor is connected with the power transformer primary side by the contact of above-mentioned relay.

Described transformer station automatic drainage control device, the two ends, contact of its relay are parallel with a changeover switch.

Owing to adopt aforesaid technical scheme, the utlity model has following superiority:

This transformer station's automatic drainage control device, it is simple in structure, and is reasonable in design, novel, practicality is good, utilizes the water level of two interior ponding of tongue tubes detection reservoirs of dry-reed water level controller, changes the output level state of pulsed triggering circuit, the control A.C. contactor gets electric or dead electricity, and then the start and stop of realization water pump, reach self-draining purpose, be very easy to operations staff's flood control maintenance work, improve operating efficiency, had excellent generalization values.

Description of drawings

Fig. 1 is the circuit theory diagrams that the utility model transformer station uses automatic drainage control device.

The specific embodiment

Also by reference to the accompanying drawings the technical solution of the utility model is described in further detail below by embodiment.

As shown in Figure 1, this transformer station's automatic drainage control device, it comprises dry-reed water level controller, pump motor and controller, and the dry-reed water level controller is arranged in the reservoir in the transformer station, and the dry-reed water level controller includes water level tongue tube and following water level tongue tube; Pump motor is connected with the three phase supply power supply by main contacts, the air switch of an A.C. contactor KM; Controller comprises the power transformer B that connects successively, rectifier bridge D1～D4, filter capacitor C1, three terminal regulator U1 and pulsed triggering circuit, power transformer B primary side inserts the 220V AC power, power transformer B adopts the step-down transformer of 220V/12V 3W, three terminal regulator U1 adopts integrated chip LM7812, pulsed triggering circuit comprises a double D trigger CD4013, the last water level tongue tube K3 of dry-reed water level controller, following water level tongue tube K2 one end by lead respectively with the S of double D trigger CD4013 end, R holds connection, the other end is connected with three terminal regulator U1 output by lead, the output of the d type flip flop IC1 of double D trigger CD4013 is connected with the base stage of triode VT, be connected to the coil of relay K 1 between the colelctor electrode of triode VT and the three terminal regulator U1 output, the emitter stage of triode VT, the data input pin D of double D trigger CD4013 and clock pulse input terminal CP ground connection, two output Q1 of the d type flip flop IC2 of double D trigger CD4013, be connected to Light-Emitting Diode LED3 between Q2 and the ground respectively, Light-Emitting Diode LED2, the coil of the A.C. contactor KM that links to each other with pump motor is connected with power transformer B primary side by the contact of above-mentioned relay K 1.

When the water level of ponding in the reservoir rises to water level tongue tube K3 position, permanent magnet in the ball float makes water level tongue tube adhesive conducting, the S end of double D trigger CD4013 obtains a trigger impulse, the output Q3 of d type flip flop IC1 is high potential 1 by electronegative potential 0 saltus step, triode VT is coupled with the bias voltage conducting, the coil of relay K 1 gets electric adhesive, drive the closing of contact, make the coil of A.C. contactor KM get electric adhesive, drive main contacts closure, make pump motor get electric rotation, the beginning draining; When the water level of ponding in the reservoir drops to water level tongue tube K2 position, permanent magnet in the ball float makes down water level tongue tube adhesive conducting, the R end of double D trigger CD4013 obtains a reset pulse, and forcing the output Q3 of d type flip flop IC1 is electronegative potential 0 by high potential 1 saltus step, and triode VT ends, the coil losing electricity of relay K 1, the contact is disconnected, and the coil losing electricity of A.C. contactor KM disconnects main contacts, pump motor stops the rotation, and stops draining.

Emitting red light diode LED3, the green emitting diode LED2 that two output Q1, the Q2 of the d type flip flop IC2 of double D trigger CD4013 connect does operation and stops indication, and Yellow luminous diode LED1 is the power supply indication.

Described transformer station automatic drainage control device, the two ends, contact of its relay K 1 are parallel with a changeover switch SA, and when controller circuit board broke down, it was electric the coil of A.C. contactor KM to be got by changeover switch SA, started the water pump draining.

Claims

1. transformer station's automatic drainage control device, it is characterized in that: it comprises dry-reed water level controller, pump motor and controller, the dry-reed water level controller is arranged in the reservoir in the transformer station, and the dry-reed water level controller includes water level tongue tube and following water level tongue tube; Pump motor is connected with the three phase supply power supply by main contacts, the air switch of an A.C. contactor; Controller comprises the power transformer that connects successively, current rectifying and wave filtering circuit, three terminal regulator and pulsed triggering circuit, pulsed triggering circuit comprises first d type flip flop, second d type flip flop, the last water level tongue tube of dry-reed water level controller, following water level tongue tube one end by lead respectively with the S of two d type flip flops end, R holds connection, the other end is connected with the three terminal regulator output by lead, the output of first d type flip flop is connected with coil one end of a relay by a triode, the coil other end of relay is connected with the three terminal regulator output, the output of second d type flip flop is connected to two Light-Emitting Diodes, and the coil of the A.C. contactor that links to each other with pump motor is connected with the power transformer primary side by the contact of above-mentioned relay.

2. transformer station according to claim 1 automatic drainage control device, it is characterized in that: the two ends, contact of its relay are parallel with a changeover switch.