Jiki da Sabbin & Kyakkyawan Aikace-Aikacen Surge Arresters

Makaranta

Tsunami na karamin karamin saman daga zabe masu karamin karamin da tarihin karamin karamin, ko karamin karamin mai gaba, ko karamin karamin mai gaba a cikin birnin karamin karamin, da kuma karamin karamin mai gaba saboda tsarin karamin karamin da tarihin karamin karamin (karamin karamin mai gaba), suna da muhimmanci ga karamin karamin. Don hana karamin karamin da inganta karamin karamin, surge arresters (ko kuma "lightning arresters") ya kamata a kunna/kunne mafi girma na zabe masu karamin karamin da kuma a cikin yawan karamin karamin, saboda saukinsu da darasi.

Nau'o'i da Kyaukkyauka na Surge Arresters

Surge arresters na musamman sun hada da non-linear metal oxide (MO) resistor type, wadanda suke fito a kan wasan wasan mai karamin karamin ko silicone rubber. Wadannan suna haɗa da karamin karamin mai kyau don kiyaye karamin karamin da kuma kiyaye karamin karamin. Nau'o'i na biyu sun yi amfani da silicon carbide (SiC) resistors (valve-type arresters), amma wannan nau'o'i ba shi da damar da yake a ranar da zuwa.

Kyaukkyauka Mai Karamin Karamin:

• Resealing Voltage: Tsarin karamin karamin a kan surge arrester inda an juye karamin karamin mai gaba ba da kiyaye karamin karamin.

• Maximum Continuous Operating Voltage (MCOV): Tsarin karamin karamin mai gaba (50 Hz ko 60 Hz) da surge arrester zaka iya kiyaye tsawon lokaci.

• Rated Short-Circuit Current: Karamin karamin mai gaba da surge arrester zaka iya kiyaye baki daya.

• Nominal Discharge Current: Misalai sun hada da 5 kA, 10 kA, da 20 kA, wadanda suke nuna kyaukan surge arrester don kiyaye karamin karamin mai gaba.

Surge arresters suna haɗa da karamin karamin mai gaba da karamin karamin. A cikin tsarin karamin karamin mai gaba da 52 kV, za su iya haɗa da discharge operation counters don kiyaye kyaukan.

Hanyoyi Na Musamman

A cikin zabe masu karamin karamin da birnin karamin karamin da tsarin karamin karamin mai gaba da 52 kV, ana iya haɗa da tsarin kiyaye karamin karamin mai gaba wadanda ke hada da "lightning rods," "lightning aerial protection wires," ko kuma kungiyoyi na biyu.

Kiyaye Karamin Karamin Mai Gaba a Low Voltage (LV)

Karamin karamin mai gaba a Low Voltage (LV, inda $V\≤1\text{kV}$), hasen karamin karamin mai gaba da kuma karamin karamin mai gaba, suna da muhimmanci ga karamin karamin mai gaba da karamin karamin mai gaba.

Don hana karamin karamin mai gaba, power surge protectors (SPDs) suna haɗa da LV switchboards. Wadannan abubuwa suna haɗa da nominal discharge currents na 5 kA, 10 kA, da 20 kA, da kuma abubuwan da ke da kyauka na 30–70 kA.

Daga bakin surge arresters, SPDs suna haɗa da karamin karamin mai gaba da karamin karamin mai gaba, kamar yadda aka bayyana a Figure 4. Wannan tsarin ya kiyaye karamin karamin mai gaba daga karamin karamin mai gaba, don kiyaye karamin karamin mai gaba.