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Serial voltage regulator

A voltage regulator and voltage technology, applied in the direction of instruments, regulating electrical variables, control/regulating systems, etc., can solve the problems of inability to use electric power test, large output zero voltage, large coil stress, etc., to achieve convenient automatic measurement, output The effect of small zero position and high adjustment fineness

Inactive Publication Date: 2014-07-09
沈阳中川测试技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the very large coil stress in the use of the inductive voltage regulator, it is difficult to manufacture, and there is generally a lot of noise during operation. Another important defect is that the output zero voltage is large, and it cannot be used in many tests.
[0005] Thyristor voltage regulator is a kind of power control electrical appliance based on silicon controlled rectifier and with special control circuit as the core. It has many advantages such as high efficiency, no mechanical noise and wear, fast response, small size and light weight. , however, cannot be used for most electrical experiments due to the very large waveform distortion in principle

Method used

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specific Embodiment approach 1

[0056] like figure 1 As shown, the present invention includes a voltage regulating cabinet 1, and a drawer-type pressure regulating unit 2 is installed layered from top to bottom in the pressure regulating cabinet 1, figure 1 Shown is a 20-layer drawer-type voltage-regulating unit 2, which is fixed on the frame of the voltage-regulating cabinet 1 with fastening screws 12, and a displacement pulse is installed on the outer surface of the drawer-type voltage-regulating unit 2 Input interface 3-1, shift pulse output interface 4, power input terminal 6 and voltage regulation output terminal 7, in order to facilitate wiring, a control signal input transfer interface 8 and a power input transfer interface are also installed on the voltage regulation cabinet 1 9 and the voltage regulation output adapter interface 10; in order to dissipate heat, heat dissipation shutters 11 are installed in the pressure regulation cabinet 1, and a voltage regulation module 5 is installed in each layer...

specific Embodiment approach 2

[0058] like figure 1 As shown, the present invention includes a voltage regulating cabinet 1, and a drawer type voltage regulating unit 2 is installed layered from top to bottom in the pressure regulating cabinet 1, and the drawer type voltage regulating unit 2 is fixed on the voltage regulating cabinet 1 with fastening screws 12. on the frame, figure 1 Shown is a 20-layer drawer-type pressure regulating unit 2, and a parallel data input interface 3-2 is installed on the outer surface of the drawer-type pressure regulating unit 2, which is about to figure 1 The shift pulse input interface 3-1 and the shift pulse output interface 4 are replaced by a parallel data input interface 3-2, and a power input terminal 6 and a voltage regulation output terminal 7 are also installed on the outer surface of the drawer type voltage regulation unit 2, for For convenient wiring, the control signal input transfer interface 8, the power input transfer interface 9 and the voltage regulation ou...

specific Embodiment approach 3

[0060] like Figure 8 As shown, each voltage regulating cabinet 1 of the present invention can independently form a voltage regulator. In order to prevent the cabinet body of each voltage regulator from being too large, according to the requirements of the total output capacity of the equipment, several to dozens of voltage regulating The devices can be used in series, the total output capacity of the device is equal to the sum of the capacities of all transformers, the maximum output voltage of the device is equal to the sum of the output voltages of all transformers, and the fineness of voltage adjustment is equal to the output voltage of the smallest single transformer, and the fineness of adjustment can be better than 1%. %.

[0061] Taking the voltage regulator of the serial control circuit as an example, the working process of the present invention is, at first the present invention is connected with the voltage regulator controller, as Figure 8 As shown, the voltage r...

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Abstract

A cascaded voltage regulator, which overcomes the problems of poor reliability and low safety of the existing contact voltage regulator, difficulty in manufacturing the inductive voltage regulator, and large output zero voltage. The voltage regulating module is installed in the cabinet, and the voltage regulating module is composed of a transformer array connected in series with each other, a relay array and a control circuit. The secondary winding connected to the transformer array is connected to the voltage regulation output terminal, and the relay array controls the number of primary windings connected in series with each other in the transformer array to realize the voltage regulation output. The beneficial effect is that the control circuit and the voltage regulation unit can be modularized and accumulated , so it is possible to make voltage regulators with various capacities and adjustment fineness, stable voltage regulation, high adjustment fineness, small output zero position, safe and reliable, and no wearing parts, no need for oil filling, widely applicable to various electric power Test pressure regulation requirements.

Description

technical field [0001] The invention belongs to the technical field of AC voltage regulating equipment, in particular to a cascaded voltage regulator used for regulating test voltage in electric power tests. Background technique [0002] Voltage regulator is an essential equipment in electric power test. In the prior art, the voltage regulators used to adjust the test voltage mainly include contact voltage regulators, induction voltage regulators and thyristor voltage regulators. in: [0003] The contact voltage regulator winds a single-voltage winding on the iron core. A number of carbon brushes mounted on the brush holder closely match the polished surface of the coil under the action of spring pressure, and the carbon brush slides on the polished surface of the coil. For voltage adjustment, copper contactors can also be used when the capacity is large. Due to the characteristics of simple production, low cost and convenient use, it is currently the main voltage regulati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/14
Inventor 张欣胡毅王野夫王德文张晓宇刘辉吴德莉邹春威孙喻
Owner 沈阳中川测试技术有限公司