CN201378888Y - Intelligent control street lamp transformer power saving device - Google Patents

Abstract

The utility model provides an energy-saving device for intelligently controlling street lamp transformers, which is composed of high and low voltage switch controllers for transformers and a power supply controller; , that is, at sunset, first put the high-voltage switch of the transformer into operation, and then turn on the low-voltage switch to supply power to the street lamps. At sunrise and dawn, first turn off the low-voltage switch to stop the power supply of the street lights, and then turn off the high-voltage switch to power off the transformer, so that the high-voltage side of the transformer can be used Isolation switch reduces equipment investment cost; this energy-saving device can make the transformer stop running without load for more than ten hours during the day, reduce unnecessary power loss of the power grid, and also slow down the aging of transformer insulation, prolong the service life of the transformer, and save street lamp projects. Cost, the device has broad market prospects.

Description

Intelligent control street lamp transformer power saving device

technical field

The utility model relates to an energy-saving device for intelligently controlling a street lamp transformer, in particular, it is applied to a 10(6)kV distribution network to control a street lamp transformer loss reduction and energy-saving device.

Background technique

At present, the power supply of urban street lights is usually powered by a 10kV distribution transformer; when lighting is not needed during the day, the power is cut off from the low-voltage side of the transformer; The transformer dedicated to supplying electricity to street lamps is still in a charged state, that is to say, the street lamp transformer is in a charged and no-load operating state for more than ten hours a day, so there are many undue power losses in the power grid.

In order to solve this problem, people have been looking for an ideal technology to solve this unnecessary redundant loss technical solution.

Contents of the invention

The purpose of the utility model is to aim at the deficiencies of the prior art, thereby providing a scientific design, low cost, and reliable power supply to overcome the defects of the existing control street lamp transformer.

In order to achieve the above purpose, the utility model provides an intelligent control street lamp transformer power saving device.

An intelligent control street lamp transformer power-saving device, including a distribution transformer high-voltage switch controller, a low-voltage switch controller, and a power supply controller;

The power supply controller is connected to the transformer high-voltage switch controller and low-voltage switch controller respectively, and automatically stops and transmits power to the street lamp power supply according to the required sequence;

The power controller includes a DC power supply circuit, a single-chip microcomputer circuit, and an actuator relay K; the DC power supply circuit is connected to the single-chip microcomputer circuit, and the output of the single-chip microcomputer circuit is connected to the actuator relay K, and the actuator relay K has two groups of four output control terminals. They are G1, G2, D1, and D2 respectively. The G1, G2 are connected to the high-voltage switch controller, and the D1, D2 are connected to the low-voltage switch controller.

The high-voltage switch controller includes a relay KG, a capacitor C1, a resistor R1, the moving contact K1 of the relay K of the power controller, and the moving contact KG1 of the relay KG , the moving contact KD1 of the relay KD of the low-voltage switch controller; one end of the coil of the relay KG is respectively connected with the moving contact K1 end of the relay K, the one end of the resistor R1, and the low-voltage switch controller One end of the moving contact KD1 of the relay KD is connected, and the other end of the moving contact K1 of the relay K of the power controller is connected with the other end of the moving contact KD1 of the relay KD of the low-voltage switch controller, and then connected to the power supply A. The other end of the resistor R1 is connected to one end of the capacitor C1, the other end of the capacitor C1 is connected to one end of the moving contact KG1 of the relay KG, and the other end of the coil of the relay KG is connected to the relay KG. The other end of the moving contact KG1 is connected to the power supply B.

The low-voltage switch controller includes a relay KD, the moving contact K1 of the relay K of the power controller, the moving contact KG1 of the relay KG of the high-voltage switch controller, a capacitor C2, 1 A resistor R2, the moving-off contact KD2 of the relay KD; one end of the relay KD coil is respectively connected to one end of the moving-on contact K1 of the relay K of the power controller, and one end of the resistor R2 is connected, so The other end of the moving contact K1 of the relay K of the power controller is connected to the power supply D, and the other end of the coil of the relay KD is respectively connected to one end of the moving contact KG1 of the relay KG of the high-voltage switch controller, and the relay One end of the moving-off contact KD2 of KD is connected, the other end of the moving-on contact KG1 of the relay KG of the high-voltage switch controller is connected to the power supply E, the other end of the resistor R2 is connected to one end of the capacitor C2, and the other end of the capacitor C2 One end is connected with the other end of the break contact KD2 of the relay KD.

Compared with the technology, the utility model has outstanding substantive features and remarkable progress. Specifically, the device has the following advantages:

1. The street lamp switches the power supply according to the natural light. When the light goes dark at night, the controller of the device will first automatically close the power switch on the high-voltage side of the transformer according to the set program requirements. After the transformer is charged, the high-voltage The switch controller sends a signal to the switch on the low-voltage side of the transformer to close the switch and transmit power to the street lamp. When the controller operates at sunrise and dawn the next day, the controller first disconnects the low-voltage switch on the secondary side of the transformer, stops the power supply of the street lamp, and then powers off the high-voltage side switch of the street lamp transformer. The transformer is in a state of complete power failure. It is no longer charged and no-load operation, realizing transformer loss reduction and power saving.

2. Since the transformer has more than ten hours of power failure every day, the insulation aging of the transformer is slowed down, the service life of the transformer is extended, and the cost of the street lamp project is saved at the same time.

Description of drawings

Figure 1 is a block diagram of the circuit principle of the intelligent control street lamp transformer power-saving device of the present invention

Fig. 2 is the functional block diagram of the power controller of the present utility model

Fig. 3 is the principle circuit diagram of the high-voltage switch controller of the present utility model

Fig. 4 is the schematic circuit diagram of the low-voltage switch controller of the present utility model

Detailed ways

The technical solutions of the present utility model will be further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in Figure 1, it is a schematic block diagram of the circuit of the intelligent control street lamp transformer power-saving device of the present invention, a power supply controller 1, a high-voltage switch controller 2, a low-voltage switch controller 3, a high-voltage switch 4, a low-voltage switch 5, and a transformer 6.

The high-voltage side of the transformer is connected to the high-voltage switch 4, and the low-voltage side is connected to the low-voltage switch 5. The power controller 1 controls the high- and low-side switch controllers 2 and 3 of the transformer respectively, and the high-voltage side switch controller 2 controls the opening and closing of the high-voltage switch 4 and the low-voltage switch respectively. The switch controller 3, the low-voltage switch controller 3 controls the opening and closing of the low-voltage switch and the high-voltage switch. The device automatically controls the high and low side switches of the transformer according to the sunrise and sunset, and stops and sends power to the street lamps according to the program requirements.

As shown in Figure 2, it is a functional block diagram of the power controller of the present utility model, and the power controller includes a DC power supply circuit, a single-chip microcomputer circuit, and an actuator relay K; the DC power supply circuit is connected with the single-chip microcomputer circuit, and the output of the single-chip microcomputer circuit is connected with the actuator relay. K connection, the actuator relay K has two sets of four output control terminals, respectively G1, G2, D1, D2, the G1, G2 are connected to the high-voltage switch controller, and the D1, D2 are connected to the low-voltage switch controller.

The DC power supply circuit supplies power to the single-chip microcomputer. The program of the single-chip computer calculates the time of sunrise and sunset in the area where the installation is installed according to the longitude and latitude of the earth, and controls the switching of the high and low switches of the transformer according to the program, and controls the switching of the street lamp power supply.

During the day, the power is cut off to the street lamps, and at night, the power is sent to the street lamps, and the power cut to the transformer during the daytime load is automatically completed, and the power is sent at night.

As shown in Figure 3, it is a schematic circuit diagram of the transformer high-voltage switch controller of the present invention. The high-voltage switch controller includes a relay KG, a capacitor C1, and a resistor R1. The power controller The moving contact K1 of the relay K, the moving contact KG1 of the relay KG, the moving contact KD1 of the relay KD of the low-voltage switch controller; one end of the coil of the relay KG is respectively connected with the moving contact of the relay K One end of the contact K1 is connected to one end of the resistor R1, and one end of the moving contact KD1 of the relay KD of the low-voltage switch controller is connected, and the other end of the moving contact K1 of the relay K of the power controller is connected to the low-voltage switch The other end of the moving contact KD1 of the relay KD of the controller is connected to the power supply A, the other end of the resistor R1 is connected to one end of the capacitor C1, and the other end of the capacitor C1 is connected to the moving contact of the relay KG. One end of the closing contact KG1 is connected, and the other end of the coil of the relay KG is connected with the other end of the moving closing contact KG1 of the relay KG, and then connected to the power supply B.

When night comes, the relay K of the power controller gets the electric closing contact K1 to pull in, and the moving contact KG1 of the relay KG pulls in immediately, and the high-voltage switch is closed to send power to the transformer. Only after the high-voltage switch is closed, After a delay, the low-voltage side switch can be closed to send power to the street lamp.

When the day comes, the relay K loses the electric closing contact K1 and disconnects, and the high and low voltage side switch controller circuit of the transformer is connected with the moving close contact K1 of the relay K in series, which will immediately cut off the power on the low voltage side switch, while the high voltage side switch controller The relay KG of the circuit has a delay release function, and the high-voltage switch can be disconnected only after a certain delay after the low-voltage side switch is powered off, and the transformer is powered off.

Fig. 4 is the schematic circuit diagram of the transformer low-voltage switch controller of the present invention. The low-voltage switch controller includes a relay KD, the moving contact K1 of the relay K of the power controller, and the high-voltage switch controller The moving contact KG1 of the relay KG, a capacitor C2, a resistor R2, and the moving contact KD2 of the relay KD; one end of the coil of the relay KD is respectively connected with the moving contact of the relay K of the power controller One end of the closing contact K1 is connected to one end of the resistor R2, the other end of the moving closing contact K1 of the relay K of the power controller is connected to the power supply D, and the other end of the coil of the relay KD is respectively connected to the high voltage One end of the moving contact KG1 of the relay KG of the switch controller is connected to one end of the moving contact KD2 of the relay KD, and the other end of the moving contact KG1 of the relay KG of the high-voltage switch controller is connected to the power supply E. The other end of the resistor R2 is connected to one end of the capacitor C2, and the other end of the capacitor C2 is connected to the other end of the break contact KD2 of the relay KD.

When night comes, the electric closing contact of relay K pulls in, and the high and low voltage side switch controller circuits of the transformer are both closed.

When the day comes, the relay K loses its electric contact and disconnects, the low-voltage side switch immediately cuts off the power, and the relay KG in the high-voltage side switch controller circuit is connected with a delay release circuit, and the high-voltage switch can only be disconnected after a certain delay. De-energize the transformer. In this way, the high-voltage switch operates without load current, and an isolating switch or a combination of an isolating switch and a melting device can be selected, which can reduce equipment investment costs.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit it; although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand; still The specific implementation of the present invention can be modified or some technical features can be equivalently replaced without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution claimed by the utility model.

Claims (4)

1. a Based Intelligent Control street-lighting transformer economize on electricity is put, and it is characterized in that: comprise the distribution transformer high-voltage switch controller, low tension switch controller, power-supply controller of electric;

Wherein, described power-supply controller of electric connects described transformer high-voltage on-off controller respectively, the low tension switch controller, and time, order are carried out automatic transmission or not operation on request to road lamp power supply.

2. Based Intelligent Control street-lighting transformer battery saving arrangement according to claim 1 is characterized in that: described power-supply controller of electric comprises DC power supply circuit, single chip circuit, executive component relay K; DC power supply circuit is connected with single chip circuit, single chip circuit output is connected with the executive component relay K, the executive component relay K has two groups of four output control terminal, be respectively G1, G2, D1, D2, described G1, G2 connect high-voltage switch controller, and described D1, D2 connect the low tension switch controller.

3. Based Intelligent Control street-lighting transformer battery saving arrangement according to claim 1, it is characterized in that: described high-voltage switch controller, comprise 1 relay K G, 1 capacitor C1,1 resistor R 1, the make contact K1 of the relay K of described power-supply controller of electric, the make contact KG1 of described relay K G, the make contact KD1 of the relay K D of low tension switch controller; Described relay K G coil one end respectively with make contact K1 one end of described relay K, described resistor R 1 one ends, make contact KD1 one end of the relay K D of described low tension switch controller connects, the make contact K1 other end of the relay K of described power-supply controller of electric with meet power supply A after the make contact KD1 other end of the relay K D of low tension switch controller is connected, described resistor R 1 other end is connected with the end of described capacitor C1, the other end of described capacitor C1 is connected with the end of the make contact KG1 of described relay K G, the described relay K G coil other end with meet power supply B after the make contact KG1 other end of relay K G is connected.

4. Based Intelligent Control street-lighting transformer battery saving arrangement according to claim 1, it is characterized in that: described low tension switch controller, comprise a relay K D, the make contact K1 of the relay K of described power-supply controller of electric, the make contact KG1 of the relay K G of described high-voltage switch controller, 1 capacitor C2,1 resistor R 2, the break contact KD2 of relay K D; One end of described relay K D coil respectively with the end of the make contact K1 of the relay K of described power-supply controller of electric, described resistor R 2 one ends connect, another termination power D of the make contact K1 of the relay K of described power-supply controller of electric, the other end of described relay K D coil respectively with the end of the make contact KG1 of the relay K G of described high-voltage switch controller, break contact KD2 one end of relay K D connects, the other end of the make contact KG1 of the relay K G of described high-voltage switch controller connects power supply E, described resistor R 2 other ends are connected with described capacitor C2 one end, and the capacitor C2 other end is connected with the break contact KD2 other end of relay K D.

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