CN201364349Y

CN201364349Y - DC voltage generator

Info

Publication number: CN201364349Y
Application number: CNU2009200369148U
Authority: CN
Inventors: 张旗; 张生林; 顾亚夫; 张炳云; 宗普国
Original assignee: JIANGSU LEIYU HIGH VOLTAGE EQUIPMENT CO Ltd
Current assignee: Jiangsu Qiyuan Leiyu Electrical Technology Co., Ltd.
Priority date: 2009-02-19
Filing date: 2009-02-19
Publication date: 2009-12-16
Anticipated expiration: 2019-02-19

Abstract

A DC voltage generator relates to the technical field of power supplies of a high-voltage direct current test section and a corona cage, and comprises a transformer, a DC output device and a residual electricity grounding device. The DC output device comprises three groups of insulation tubes which are vertically arranged; in each group of insulation tubes, the adjacent insulation tubes are connected in series through connecting seats; a capacitor is arranged in each insulation tube respectively; the two ends of each capacitor are electrically connected with the connecting seats at the two ends of each insulation tube, in which the capacitor is arranged, through lead wires; insulation tubes in one group of the insulation tubes are connected with the connecting seats at the two ends of the insulation tubes in the other two groups of the insulation tubes through polarity silicon stack. The utility model adopts a three-post type structure and has the advantages of applicability of severe rugged environment and large output current up to 0.5, thereby satisfying the requirements for high current; the three-post type structure can satisfy the requirements for wind and shock resistance; and therefore, the DC voltage generator can be used as the outdoor power supply for the ultra-high voltage DC test section and the corona cage.

Description

DC voltage generator

Technical field

The utility model relates to the power technique fields of HVDC TEST line segment and corona cage.

Background technology

Existing DC voltage generator only limits to indoor use, output current is less than 50mA, output voltage all is a unipolarity, structure substantially all constitutes with two pole structures, monolateral charging, output current is little, in the face of the growing extra-high voltage electric power cause of China, can not satisfy the demand of electric utility with regard to the technology of existing product.

The utility model content

The utility model purpose is to design a kind of outdoor high pressure, heavy DC voltage generator of can be used for.

The utility model comprises a transformer, in transformer one side the 1200kv0.5A DC output devices is set, and in a side of described DC output devices surplus electrical grounding assembly is set; Described DC output devices comprises three groups of upright insulation tubes to layout, each is organized between the insulation tube adjacent in the insulation tube and is connected in series mutually by connection seat, capacitor is set respectively in each insulation tube, the two ends of each capacitor connection seat at the insulation tube two ends by lead and place respectively electrically connect, wherein each insulation tube in one group of insulation tube respectively the connection seat at each the insulation tube two ends by two groups of insulation tubes of polarity silicon stack and other connect; Insulation tube in top joins a body overhead guard altogether by connection seat, series direct current output protection resistance on the body overhead guard.

It is the three pillar type structure that the utility model changes former two pole structures, adapt to harsh environmental requirement, characteristics as high height above sea level, infrabar, intensive ultraviolet, round-the-clock outdoor test of long duration operation, output current is big, reaches 0.5A, thereby satisfies the requirement to big electric current, the three pillar type structure, can also reach the requirement of wind resistance antidetonation, the outdoor power system that can be used as extra-high voltage direct-current test line segment and corona cage uses, and uses as the DC break down voltage and the scientific research of power product.

Surplus electrical grounding assembly described in the utility model is provided with pneumatic grounding switch, and every group of pneumatic grounding switch is connected in parallel on respectively on the corresponding resitstance voltage divider.

The utility model also increases by a cover Pneumatic grounding device, and discharge need be manually gone in this equipment discharge in the past, and promptly inconvenience is dangerous again, behind the increase Pneumatic grounding device, can discharge to outdoor equipment in the observing and controlling chamber.

Description of drawings

Fig. 1 is a kind of structural representation of the present utility model.

Fig. 2 be among Fig. 1 A to view.

Fig. 3 bows to view for Fig. 1's.

Fig. 4 is circuit theory diagrams of the present utility model.

Embodiment

Shown in Fig. 1,2,3,4, the utility model is provided with the 1200kv0.5A DC output devices in transformer L one side, in a side of DC output devices surplus electrical grounding assembly is set.

DC output devices comprises three groups of upright insulation tubes 1 to layout, each is organized between the insulation tube adjacent in the insulation tube 1 and is concatenated into cylindricality mutually by connection seat 2, capacitor is set respectively in each insulation tube, the two ends of each capacitor connection seat 2 at insulation tube 1 two ends by lead and place respectively electrically connect, wherein each insulation tube 1 in one group of insulation tube respectively the connection seat 2 at each insulation tube 1 two ends by two groups of insulation tubes of polarity silicon stack 3 and other connect.Each is organized, and the insulation tube 1 in top joins a body overhead guard 4 altogether by connection seat 2 respectively in the insulation tube, series direct current output protection resistance 5 on body overhead guard 4.

As shown in Figure 4, surplus electrical grounding assembly is provided with pneumatic grounding switch K, and every group of pneumatic grounding switch K is connected in parallel on the corresponding resitstance voltage divider by divider resistance R respectively.

Claims

1, DC voltage generator comprises a transformer, it is characterized in that in transformer one side the 1200kv0.5A DC output devices being set, and in a side of described DC output devices surplus electrical grounding assembly is set; Described DC output devices comprises three groups of upright insulation tubes to layout, each is organized between the insulation tube adjacent in the insulation tube and is connected in series mutually by connection seat, capacitor is set respectively in each insulation tube, the two ends of each capacitor connection seat at the insulation tube two ends by lead and place respectively electrically connect, wherein each insulation tube in one group of insulation tube respectively the connection seat at each the insulation tube two ends by two groups of insulation tubes of polarity silicon stack and other connect; Insulation tube in top joins a body overhead guard altogether by connection seat, series direct current output protection resistance on the body overhead guard.

2, according to the described DC voltage generator of claim 1, it is characterized in that described surplus electrical grounding assembly is provided with pneumatic grounding switch, every group of pneumatic grounding switch is connected in parallel on respectively on the corresponding resitstance voltage divider.