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Relay na Yawancin Kafu | Relay na Tsakiyar Kafu

Electrical4u
Electrical4u
فیلڈ: Karkashin Kuliya da Dukkana
0
China

Mai Da Inverse Time Relay Na Nama

A cikin kwanan kwallon kofin da yake, lokacin da ake yi da shi ta gina da girman abu da ya fara. Idan girman abu da ya fara ya zama mafi yawa, za'a iya yi da kofin da shi ta gina da tsara. Bisa ga haka, lokacin da ake yi da kofin da shi ta gina, wanda ya zama waɗanda suka dace da girman abu da ya fara.
Na biyu, na biyu, karamin inverse time relay suna nuna a cikin hoton da aka bayar da ita.
inverse time relay curve

A cikin tarihin, ana samun cewa, idan girman abu da ya fara ya zama OA, lokacin da ake yi da kofin da shi ta gina ya zama OA', idan girman abu da ya fara ya zama OB, za'a iya yi da kofin da shi ta gina da OB' kuma idan girman abu da ya fara ya zama OC, za'a iya yi da kofin da shi ta gina da OC'.
A cikin tarihin, ana samun cewa, idan girman abu da ya fara ya zama kadan da ke ka OA, lokacin da ake yi da kofin da shi ta gina ya zama lissa, wanda yana nufin cewa, idan girman abu da ya fara ya zama kadan da ke ka OA, ba za a iya yi da kofin da shi ta gina. Wannan girman abu da ya fara da ke kusa da kofin da shi ta gina ta nufin pick up value of actuating quantity. A cikin wannan, an sanya shi da OA.
An samu cewa, a cikin tarihin, idan girman abu da ya fara ya zama lissa a kan x axis, lokacin da ake yi da kofin da shi ta gina bai zama zero. Tarihi ya zama da lokacin da ta gina da yawan da ta gina da tsawo. Wannan shine lokacin da ta gina da yawan da ta gina da tsawo.

A cikin inverse time relay, idan girman abu da ya fara ya zama karamin, sunan shi shine inverse current relay.
A cikin kwanan kofin da yake, ake yi da inverse time da kiyasin kisan kayan aiki da ake koyar da shi a cikin kofin da shi.
A cikin induction disc relay, ake yi da inverse time delay da kiyasin kisan kayan aiki da ake koyar da shi, a cikin halin da ake koyar da shi, idan disc ya zama, yana koyar da
flux da ya faruwa. Saboda haka, karamin ya zama a cikin disc, wanda ya koyar da haruffa da ya faruwa a cikin disc. Solenoid relay zai iya zama inverse time relay, idan ake koyar da piston da oil dash-pot. Piston, da ake koyar da moving iron plunger, ya zama a cikin mai dauki. Idan solenoid relay ya zama da shi, piston ya zama sama da iron plunger.

Koyar da mai dauki ya koyar da haruffa da ya faruwa a cikin plunger. Kaddinin haruffa da ya faruwa a cikin plunger ya zama da kaddinin da solenoid ya faruwa a cikin iron plunger. Wannan kaddinin da solenoid ya faruwa a cikin iron plunger ya zama da girman abu da ya faruwa. Saboda haka, lokacin da ake yi da kofin da shi ta gina ya zama da girman abu da ya faruwa.

Definite Time Lag Relay

A cikin tsarin coordination da ake yi da kofin da shi a cikin protection scheme na electrical power system, akwai lokacin da ake buƙaci, don ake yi da kofin da shi a cikin lokacin da ke ɓangar. Definite time lag relays suna yi da shi a cikin lokacin da ke ɓangar.
Lokacin da ake buƙaci daga lokacin da karamin ya zama da pick up level zuwa lokacin da kofin da shi ya zama da tsawo, ya zama da tsawo. Wannan lokacin ba zama da girman abu da ya faruwa. Duka girman abu da ya faruwa, a cikin pick up values, lokacin da ake yi da kofin da shi ya zama da tsawo.

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