CN2266136Y - 电容自激式倍频感应耐压试验机 - Google Patents

电容自激式倍频感应耐压试验机 Download PDF

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CN2266136Y
CN2266136Y CN 96225707 CN96225707U CN2266136Y CN 2266136 Y CN2266136 Y CN 2266136Y CN 96225707 CN96225707 CN 96225707 CN 96225707 U CN96225707 U CN 96225707U CN 2266136 Y CN2266136 Y CN 2266136Y
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electric capacity
self
voltage
voltage holding
transformer
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CN 96225707
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倪监清
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Sci & Tech Dev Co Dongbei Power Administration
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Sci & Tech Dev Co Dongbei Power Administration
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Abstract

本实用新型是一种电容自激式倍频感应耐压试验机,是由电容自激发电机组、操作设备、补偿设备、中间变压器等组成。其特点是:电容自激发电机组的输出端与操作设备的输入端连接,操作设备的输出端与中间变压器、补偿设备相连接。该试验机与已有技术相比较具有:输出波形好,结构简单,体积小,重量轻,操作运行及维护简单等优点。

Description

电容自激式倍频感应耐压试验机
本实用新型是对电压互感器或电力变压器进行感应耐压试验的试验机,确切地讲,它是根据感应电动机用电容自激发电的原理研制的电容自激式倍频感应耐压试验机。
目前,国内外广泛用来对电力变压器和电压互感器进行耐压试验的试验装置有2种:一种是由三台单相变压器组成的三倍频发生器,该发生器的每个元件的体积较小,重量较轻,便于携带,电力系统中广泛地用它来对电压互感器进行感应耐压试验;但由于该装置是根据磁饱和原理设计出来的,所以输出波形不好,只能单相输出,且受输入电压变化的影响较大,因此,不能被变压器和互感器制造厂采用。另一种是绕线式异步电机反拖和同步发电机组,这两种装置既能单相输出又能三相输出,输出波形较好,且能根据不同的使用要求,设计出不同的输出频率,故被变压器和互感器制造厂广泛采用;但由于这两种装置的体积较大,重量又大,故不便于携带,所以也不被电力系统厂家广泛采用。
本实用新型的目的,是根据上述问题中存在的不足,为人们提供一种新式的电容自激式倍频感应耐压试验机,以满足电力系统目前对电压互感器及电力变压器进行感应耐压试验的要求。
本实用新型是由电容自激发电机组,操作设备(调压器和仪表等),补偿设备(电压补偿器和电容补偿器),中间变压器等组成;电容自激发电机组的输出端与操作设备(调压器和仪表)的输入端连接,操作设备的输出端与中间变压器的输入端相连中间变压器的输出端与补偿设备连接;电容自激发电机组中,电动机D带动发电机F且发电机的输出端并接有励磁电容CO
本实用新型实现后有如下积极效果:1、适用于带容性负载,2、在对变压器和电压互感器进行感应耐压试验的过程中不能产生谐振,3、安全可靠,无需再加装任何短路保护装置;本实用新型还具有输出波形好,结构简单、体积小、重量轻、操作运行及维护简单等优点。
下面结合附图对本实用新型进一步说明:
图1是本实用新型的连接结构示意图;
图2是本实用新型的对配电变压器进行单相感应耐压试验的电路原理图。
图中1、电容自激发电机组,2、操作设备,3、中间变压器,4、电容补偿器,D是电动机3KW;F是发电机3KW,CO是励磁电容12uF;VF是测发电机出口电压的电压表450伏;ZB是自偶调压器,5KVA,50赫兹;A是电流表,5A;VH是测量负载电压的电压表300伏;JB是中间变压器,400∶1000(伏特比);CB是补偿电容0-10uF,本装置即是在操作设备后面接入中间变压器和电容补偿器。该装置可对配电变压器进行单相感应耐压试验。输入电压单相400V,200Hz,输出电压单相1000V,200Hz,额定输出功率6KVA。

Claims (1)

  1. 一种电容自激式倍频感应耐压试验机,由电容自激发电机组、操作设备、补偿设备、中间变压器等组成;其特征在于:电容自激发电机组的输出端与操作设备的输入端连接,中间变压器的输出端与补偿设备相连接,在电容自激发电机组中,电动机带动发电机,且发电机的输出端并接有励磁电容C。
CN 96225707 1996-03-28 1996-03-28 电容自激式倍频感应耐压试验机 Expired - Fee Related CN2266136Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96225707 CN2266136Y (zh) 1996-03-28 1996-03-28 电容自激式倍频感应耐压试验机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96225707 CN2266136Y (zh) 1996-03-28 1996-03-28 电容自激式倍频感应耐压试验机

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CN2266136Y true CN2266136Y (zh) 1997-10-29

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CN (1) CN2266136Y (zh)

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