CN2924884Y - Reactive power compensation control box - Google Patents

Abstract

The utility model relates to a power-saving reactive compensation control device for circuits, in particular to a reactive compensation control box, including a current transformer (2), a thermal relay (3), an AC contactor (6), a reactive compensate on controller (7), a temperature controller (9), a relay (10), a transformer (11), a small breaker switching capacitor contactor (17) and a capacitor (18). When the reactive compensation control box is in operation, the AC transformer, an air switch, the AC contactor and the thermal relay complete on-off control of the circuit; the reactive compensation controller can not only display real-time voltage, load current, power factor, temperature, harmonic wave percentage and capacitor input of the system, but also make power on-off control, accumulated calculation and reactive compensation of electric equipment with 0-150KVA capacity, thereby efficiently raising the power factor, reducing the loss of electric network and achieving the energy-saving purpose.

Description

Reactive power compensation control box

Technical field:

The utility model relates to a reactive power compensation control device for circuit power saving, in particular to a reactive power compensation control box.

Background technology: At present, in the reactive power compensation control device for circuit power saving, there are no other functions except the function of reactive power compensation. Therefore, additional functions such as metering, automatic tracking, and display are required in the use of the circuit. Therefore, the production cost of the enterprise is increased, the loss of equipment is increased, and it is not conducive to environmental protection.

Invention content:

The purpose of the invention of this utility model is: on the basis of the reactive power compensation of the reactive power compensation control device, a reactive power compensation controller integrating power on and off control, electric energy metering and reactive power automatic tracking compensation is added. The controller can display system voltage, load current, power factor, temperature, harmonic percentage, capacitor input state, etc. in real time; in order to achieve the above purpose, the utility model is realized in this way: the reactive power compensation control box is composed of: terminal blocks, current Transformer, thermal relay, insurance, air switch, AC contactor, reactive power compensation controller, terminal block, temperature controller, relay, transformer, start button, lightning arrester, indicator light, small circuit breaker, three-phase four-wire active power Composed of a watt-hour meter, a switched capacitor contactor and a capacitor, it is characterized in that: on the front of the electrical installation board in the reactive power compensation control box, terminal blocks, current transformers, thermal relays, insurance, air switches, AC contactors, Power compensation controller, wiring block, temperature controller, relay, transformer and start button; among them: current transformer, thermal relay connected to the terminal, air switch and AC contactor are connected by wires; on the reactive power compensation controller through The wiring block uses wires to connect the temperature controller, air switch, relay, transformer and start button respectively; install a small circuit breaker, a three-phase four-wire system active energy meter and a switching capacitor contactor on the reverse side of the electrical installation board; Arresters, indicator lights and capacitors are installed at the lower end of the control box; among them: there are arresters and indicator lights on the capacitors connected to the switching capacitor contactor and air switch; the three-phase four-wire system active energy meter is connected to the terminals through current transformers . When using the reactive power compensation control box, the AC current transformer, air switch, AC contactor and thermal relay complete the circuit on and off control; the three-phase four-wire system active energy meter of the current transformer completes the control of the electrical equipment Active energy metering; control transformer, temperature controller, insurance, thermal relay and capacitor connected in series on the reactive power compensation controller complete reactive power compensation of electrical equipment. The reactive power compensation controller can display system voltage, load current, power factor, temperature, harmonic percentage, capacitor input status, etc. in real time; Power-off control, cumulative calculation, reactive power compensation, effective improvement of power factor, reduction of power grid loss, achieved the purpose of saving electricity.

Description of drawings:

Figure 1 is a front view of the reactive power compensation control box.

Figure 2 is a schematic diagram of the reverse side of the reactive power compensation control box.

Specific embodiments: The utility model is further described according to the accompanying drawings (as shown in Figure 1 and Figure 2): the reactive power compensation control box is composed of: terminal block 1, current transformer 2, thermal relay 3, insurance 4, Air switch 5, AC contactor 6, reactive power compensation controller 7, terminal block 8, temperature controller 9, relay 10, transformer 11, start button 12, lightning arrester 13, indicator light 14, miniature circuit breaker 15, three-phase four Wire system active watt-hour meter 16, switched capacitor contactor 17 and capacitor 18 are composed; first, the current transformer 2 installed on the electrical installation board, the thermal relay 3 connected to the terminal 1, the air switch 5 and the AC contactor 6 Connect with wires, connect the temperature controller 9, air switch 5, relay 10, transformer 11 and start button 12 on the reactive power compensation controller 7 through the terminal block 8 with wires; then install a small circuit breaker on the reverse side of the electrical installation board 15, three-phase four-wire system active watt-hour meter 16 and switched capacitor contactor 17, lightning arrester 13, indicator light 14 and capacitor 18 are installed at the lower end of the reactive power compensation control box; finally connect the switched capacitor contactor 17 and air A lightning arrester 13 and an indicator light 14 are installed on the capacitor 18 of the switch 15 ; the three-phase four-wire system active energy meter 16 is connected to the terminal 1 through the current transformer 2 .

Claims (1)

1. A reactive power compensation control box is composed of: terminal block (1), current transformer (2), thermal relay (3), insurance (4), air switch (5), AC contactor (6), Power compensation controller (7), wiring block (8), temperature controller (9), relay (10), transformer (11), start button (12), lightning arrester (13), indicator light (14), small circuit breaker device (15), three-phase four-wire system active watt-hour meter (16), switched capacitor contactor (17) and capacitor (18); it is characterized in that it is installed on the front of the electrical installation board in the reactive power compensation control box Terminal block (1), current transformer (2), thermal relay (3), insurance (4), air switch (5), AC contactor (6), reactive power compensation controller (7), terminal block (8 ), temperature controller (9), relay (10), transformer (11) and start button (12); wherein: current transformer (2), thermal relay (3) connected to terminal (1), air switch (5) and the AC contactor (6) are connected with wires; on the reactive power compensation controller (7), the temperature controller (9), the air switch (5), and the relay (10) are respectively connected with wires through the terminal block (8). ), a transformer (11) and a start button (12); a miniature circuit breaker (15), a three-phase four-wire system active watt-hour meter (16) and a switched capacitor contactor (17) are installed on the opposite side of the electrical installation board; Lightning arrester (13), pilot lamp (14) and capacitor (18) are installed at the inner lower end of power compensation control box; Wherein: there is lightning arrester (13) on the capacitor (18) that is connected to switching capacitor contactor (17) and air switch (15) ) and indicator lights (14); the three-phase four-wire system active watt-hour meter (16) is connected to the terminal (1) through the current transformer (2).

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