Wanda shi Motor Protection Relay?

Za muka na wani Motor Protection Relay?

Takardun Motor Protection Relay

Motor Protection Relay shine karamin abincin da ake amfani da shi don tabbatar da abubuwa da kuma taimaka masu motoci mai tsawo daga wurin gaba ta hanyar kudan birnin da suka kashe.

Abubuwan Da Zai Iya Kashe

Motoci zai iya kashe saboda karshen jiki, yawan fase, abubuwan da suka kashe a wurin gaba, kudan birni, rotor da ya kashe, da kuma abubuwan da suka kashe a wurin gaba.

Taimakawa Masu Motoci Mai Tsawo

Motor Protection Relays masu motoci mai tsawo sun taimaka wa tare da taimakawa kamar karshen jiki, kudan birni, yawan fase, da kuma abubuwan da suka kashe a wurin gaba.

• Muhimmin Motor Protection Relay

• Taimakawa karshen jiki

• Taimakawa kudan birni

• Taimakawa yawan fase

• Taimakawa abubuwan da suka kashe a wurin gaba

• Taimakawa rotor da ya kashe

• Taimakawa yawan bazu

Don kayan relay, muna bukata CT ratio da kuma full load current na motoci. Kayan abubuwan da ke cikin wannan shine:

Karshen Jiki Element

Don kayan wannan element, muna bukata % da ke cikin full load current da motoci ke yi waɗanda.

Kudan Birni Element

Yawan kayan wannan element shine 1 zuwa 5 marubucin starting current. Yana da time delay. Ana kayanta shi a 2 marubucin starting current tare da time delay na 0.1 detik.

Yawan Fase Element

Wannan element zai yi aiki idan an samu ƙarin yawan fase. Ana kiran shi a unbalance protection. Ana kayanta shi a 1/3rd na starting current. Idan ya kashe a lokacin bazu, ana badala parameter na 1/2 na starting current.

Taimakawa Abubuwan Da Suka Kashe A Wurin Gaba

Wannan element yana ci gaba neutral current na star connected CT secondary. Yawan kayan wannan element shine 0.02 zuwa 2 marubucin CT primary current. Yana da time delay. Ana kayanta shi a 0.1 marubucin CT primary current tare da time delay na 0.2 detik. Idan ya kashe a lokacin bazu, ana iya sa time setting zuwa 0.5 detik.

Taimakawa Rotor Da Ya Kashe

Yawan kayan wannan element shine 1 zuwa 5 marubucin full load current. Yana da time delay. Ana kayanta shi a 2 marubucin FLC (Full Load Current). Time delay zai fiye da lokacin bazu na motoci. "Lokacin bazu shine lokacin da motoci ke buƙaci zuwa speed ta fadada."

Taimakawa Yawan Bazu

A kan wannan, muna bayyana yawan bazu da ake gano a lokacin da aka sani. Daga wannan, muna hada yawan bazu da ake gano wa motoci.

Abubuwan Nau'i Na Relay

Relay masu digital na zamani sun taimaka wa tare da taimakawa kamar no-load running protection da temperature monitoring don taimakawa masu motoci da kyau.

Schematic diagram of the motor protective relay