An automatically switching generator dual-voltage output system

Abstract

This utility model discloses an automatically switching dual-voltage output system for a generator. Its structure is as follows: the stator core has two sets of stator windings, which are connected to the copper busbar of the housing. The generator is excited by the main winding, and the exciter is connected to the copper busbar of the housing. The copper busbar of the housing is connected to a small terminal block, which connects to relays A and B. Relays A and intermediate relay B are connected to voltage regulators A and B. The advantages of this utility model are: it can achieve two different voltage output modes with significant differences from a single motor; the automatic switching of the two regulators can be controlled by the intermediate relays, eliminating the need for manual switching of regulator wiring; it reduces costs, minimizes space occupation, and improves unit efficiency; and the automatic switching of the two regulators by the intermediate relays eliminates the need for manual switching of regulator wiring.

Description

Technical Field

[0001] This utility model relates to the field of generator technology, and specifically to an automatic switching generator dual-voltage output system. Background Technology

[0002] The demand for ship generators in my country is increasing day by day, and various requirements for generators are emerging one after another. Dual-voltage generators are very useful in construction sites because they can flexibly adjust the output voltage according to the actual power demand to meet the power needs of different construction equipment. Traditional dual-voltage generators are often implemented by star-delta switching, which has a fixed voltage ratio and is not convenient. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic switching generator dual-voltage output system. This system can achieve automatic switching between 660V and 400V dual voltages with a single motor, which can reduce costs, facilitate operation, and improve unit efficiency.

[0004] This utility model is implemented as follows: an automatically switching generator dual-voltage output system mainly includes: voltage regulator A and voltage regulator B, a small terminal block, a housing copper busbar, an exciter, relay A and relay B, and stator winding A and stator winding B; the stator core has two sets of stator windings, which are connected to the housing copper busbar. The generator is excited by the main winding. The exciter is connected to the housing copper busbar, which is connected to the small terminal block. The small terminal block is connected to relay A and relay B. Relay A and intermediate relay B are connected to voltage regulator A and voltage regulator B.

[0005] Furthermore, voltage regulator A and voltage regulator B are connected to the transformer.

[0006] Furthermore, the copper busbars of the enclosure are divided into live wire copper busbars and neutral wire copper busbars. The two sets of stator windings are connected to the copper busbars of the enclosure through lead wires, which are connected to six live wire copper busbars and one neutral wire copper busbar.

[0007] Furthermore, the exciter leads the 400V U and N copper busbars on the housing to the input terminal of the small terminal block, and connects to relay A and relay B respectively through the output terminal of the small terminal block. Relay A and relay B are then connected to voltage regulator A and voltage regulator B to realize the excitation input.

[0008] Furthermore, when the 660V copper busbar of the enclosure is connected, the voltage regulator A controls the output of 660V; when the 400V copper busbar is connected, the voltage regulator B operates and outputs 400V.

[0009] Furthermore, the stator winding is connected to two voltage regulators via terminals and relays on a small terminal block, thereby controlling the switching of the two voltage regulators and the dual voltage output.

[0010] Furthermore, the control of the two voltage regulators is achieved through relays. The lines of the excitation source and the exciter are respectively connected to two relays to realize the automatic control of the operation of the voltage regulators.

[0011] The advantages of this utility model are: (1) The system can realize two different voltage modes with large differences in output of a single motor. The automatic switching of the two regulators can be controlled by the intermediate relay. There is no need to manually switch the regulator wiring. The use can reduce costs, reduce space occupation, and improve unit efficiency; (2) The automatic switching of the two regulators can be controlled by the intermediate relay. There is no need to manually switch the regulator wiring. Attached Figure Description

[0012] Figure 1 This is the system wiring diagram of this utility model.

[0013] Figure 2 This is a schematic diagram of the terminal copper busbar wiring principle of this utility model.

[0014] Figure 3 This is a schematic diagram of the 660V stator winding of this utility model.

[0015] Figure 4 This is a schematic diagram of the 400V stator winding of this utility model.

[0016] Explanation of the reference numerals in the attached diagram: 1 is voltage regulator A, 2 is voltage regulator B, 3 is small terminal block, 4 is copper busbar of the enclosure, 5 is transformer, 6 is exciter, 7 is relay A, 8 is relay B, 9 is stator winding, and 10 is stator winding B. Detailed Implementation

[0017] This utility model is implemented as follows: An automatic switching generator dual-voltage output system mainly includes: voltage regulator A (1) and voltage regulator B (2), small terminal block 3, copper busbar of the enclosure 4, transformer 5, exciter 6, relay A (7), relay B (8), stator winding A (9) and stator winding B (10); firstly, through electromagnetic calculation, stator winding A and stator winding B are designed to meet the requirements of motor slot fill factor and heat generation; the system can output 660V and 400V voltages at the required power. The system uses electronic regulator A and electronic regulator B to control the 400V and 660V voltage outputs respectively, and outputs two voltages through one system and can achieve automatic switching. It is convenient to use, reduces costs, and improves unit efficiency. Connect the stator winding A (9) and stator winding B (10) leads to the copper busbar 4 of the housing respectively. The exciter leads out through the 400V U and N copper busbars on the copper busbar 4 of the housing. Connect the relay A (7) and relay B (8) respectively through the one-in and two-out terminals of the small terminal block 3. Connect the voltage regulator A (1) and voltage regulator B (2) from the relay A (7) and relay B (8) to realize the excitation input.

[0018] The voltage detection line of electronic regulator A is led out from the 400V copper busbar of the copper busbar 4 in the enclosure and connected to electronic regulator A. The voltage detection line of electronic regulator B is led out from the 660V copper busbar of the copper busbar 4 in the enclosure, first connected to transformer 5 for voltage conversion, and then connected to electronic regulator B.

[0019] The excitation output line of the exciter 6 is also split into two groups through the small terminal block 3 and connected to relay A (7) and relay B (8) respectively, and then connected to voltage regulator A (1) and voltage regulator B (2) to realize excitation output. Through this wiring method, relay A (7) and relay B (8) can realize the on and off of excitation input and output of voltage regulator A (1) and voltage regulator B (2) through automatic control, thereby controlling the regulator switching of the system and realizing the automatic control of the dual voltage generation mode of the system.

Claims

1. An automatically switched generator dual voltage output system characterized by: Mainly includes: The generator consists of voltage regulators A and B, a small terminal block, a copper busbar in the housing, an exciter, relays A and B, and stator windings A and B. The stator core has two sets of stator windings connected to the copper busbar in the housing. The generator uses the main winding for excitation. The exciter is connected to the copper busbar in the housing, which is connected to the small terminal block. The small terminal block connects to relays A and B, which in turn connect to voltage regulators A and B.

2. The generator dual-voltage output system with automatic switching according to claim 1, characterized in that: Voltage regulator A and voltage regulator B are connected to the transformer.

3. The generator dual-voltage output system with automatic switching according to claim 2, characterized in that: The copper busbars of the enclosure are divided into live wire copper busbars and neutral wire copper busbars. The two sets of stator windings are connected to the copper busbars of the enclosure through lead wires, which are connected to six live wire copper busbars and one neutral wire copper busbar.

4. The generator dual-voltage output system with automatic switching according to claim 3, characterized in that: The exciter leads the 400V U and N copper busbars on the housing to the input terminal of the small terminal block. The output terminals of the small terminal block are connected to relays A and B respectively. Relays A and B are connected to voltage regulators A and B respectively to realize the excitation input.

5. The generator dual-voltage output system with automatic switching according to claim 4, characterized in that: When the 660V copper busbar is connected to the enclosure, the voltage regulator A controls the output of 660V; when the 400V copper busbar is connected, the voltage regulator B operates and outputs 400V.

6. The generator dual-voltage output system with automatic switching according to claim 5, characterized in that: The stator winding is connected to two voltage regulators via terminals and relays on a small terminal block, thereby controlling the switching of the two voltage regulators and the dual voltage output.

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