描述

UR8AH 電壓互感器的原邊接有熔斷器

電壓互感器（Potential Transformer，簡(jiǎn)稱PT）和變壓器類似，是用來(lái)變換電壓的儀器。但變壓器變換電壓的目的是方便輸送電能，因此容量很大，一般都是以千伏安或兆伏安為計(jì)算單位；而電壓互感器變換電壓的目的，UR8AH主要是用來(lái)給測(cè)量?jī)x表和繼電保護(hù)裝置供電，用來(lái)測(cè)量線路的電壓、功率和電能，或者用來(lái)在線路發(fā)生故障時(shí)保護(hù)線路中的貴重設(shè)備、電機(jī)和變壓器。因此電壓互感器的容量很小，一般都只有幾伏安、幾十伏安，最大也不超過一千伏安。

電壓互感器在運(yùn)行時(shí)，一次繞組N1并聯(lián)接在線路上，二次繞組N2并聯(lián)接儀表或繼電器。特點(diǎn)是容量很小且比較恒定，UR8AH 正常運(yùn)行時(shí)接近于空載狀態(tài)。電壓互感器的原邊接有熔斷器，副邊可靠接地，以免原、副邊絕緣損毀時(shí)，副邊出現(xiàn)對(duì)地高電位而造成人身和設(shè)備事故。

UR8AH 電壓互感器的原邊接有熔斷器

A Potential Transformer (PT), similar to a transformer, is an instrument used to change voltage. However, the purpose of the transformer conversion voltage is to facilitate the transmission of electric energy, so the capacity is very large, and it is generally calculated in kilovolt-ampere or mega-volt-ampere. For the purpose of voltage transformer voltage conversion, UR8AH is mainly used to supply power to measuring instruments and relay protection devices, to measure the voltage, power and electrical energy of the line, or to protect the valuable equipment, motors and transformers in the line when the line fails. Therefore, the capacity of the voltage transformer is very small, generally only a few voltamps, tens of voltamps, and the maximum is not more than one thousand voltamps.

When the voltage transformer is running, the primary winding N1 is connected to the line, and the secondary winding N2 is connected to the instrument or relay. The characteristic is that the capacity is small and relatively constant, and the UR8AH is close to the no-load state during normal operation. The primary side of the voltage transformer is connected with a fuse, and the secondary side is reliably grounded to avoid the high potential to the ground on the secondary side when the primary and secondary side insulation is damaged, resulting in personal and equipment accidents.

 

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Chengdu Sunshine Xihe Co., Ltd. specializes in one-stop procurement consulting for imported industrial spare parts, offering original equipment and professional discontinued parts services. We are committed to providing efficient and reliable automation solutions for our customers. Customer support fast responseThe network of partners spans all continentsGlobal partner networkAlways achieve more delivery, be it parts, service or speed



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