Kananan Da Turbin Masu Kisan Shunt: Tushen Bayanai Na Kula Daidai
An shunt reactor na ya haka ita ce wata zuba mai kyau da yake daidaitar kasa daga kasa na gaba da taimakawa wajen cikin tsari. An amfani da shunt reactors a hanyoyi na tsari masu kasa mai yawa da substation don in tabbatar da kyauwar tsari. Zan iya a yi shunt reactors domin mafi tsarki ko kuma mai tsayi, idan ana bukatar wajen cikin tsarin tsari.
Shunt reactors suna da muhimmanci a kan inganta cikakken da kuma adadin kasa, musamman a hanyoyi masu kasa mai yawa da tattalin arziki. Saboda haka, an bukata ake bincika daidai don in tabbatar da adadin kasa da kalmomin. Binciken shunt reactors na iya haɗa da sharhiyar kayayyakin kasa, kamar resistance, reactance, losses, insulation, dielectric strength, temperature rise, da kuma acoustic noise level. Binciken shunt reactors tana taimakawa wajen samun sakamako ko kuma abubuwan da suka iya haifar da adadin kasa ko kalmomin.
Akwai hukumar da kuma addimin binciken shunt reactors, idan ba ta hanyar irin, rating, amfani, ko kuma malami. Amma, daya daga cikin hukumar da aka fi sani a halitta ita ce IS 5553, wanda ya nuna hukumar za a yi a kan shunt reactors masu extra-high-voltage (EHV) ko ultra-high-voltage (UHV). Idan a duba wannan hukumomi, za a iya kategorizar hukumar zuwa uku:
Type tests
Routine tests
Special tests
A nan, za a bayyana har hukumi a kan wayar da kuma tushen da ke da muhimmanci don in a yi hukumomi a hakan.
Type Tests of Shunt Reactor
Type tests suna yi a kan shunt reactor don in tabbatar da irin da kuma tsarin zabinta, kuma don in taimakawa wajen cewa ya tabbatar da hukumomin da aka bayyana. Type tests suna yi kowane irin ko model na shunt reactor kadan ne a lokacin da ake fitar da shi. A nan za su iya yi hukumar da su a kan shunt reactor a matsayin type tests:
Measurement of Winding Resistance
Wannan hukumi na iya sharhiyar resistance ta kowane winding na shunt reactor ta hanyar low-voltage direct current (DC) source da ohmmeter. An yi hukumi a faren ta'adanci da kuma bayan inda ake kawo duk takarda na gwargwadon bahaushe. Muhimmancin wannan hukumi shine don in tabbatar da ci gaba da kuma ci gaban windings kuma don in samun copper losses.
Za a sarrafa alama ma'adancin resistance ta hanyar yadda ake bayyana a nan:
ida Rt ita ce resistance a faren ta'adanci t (°C), R20 ita ce resistance a faren ta'adanci 20°C, da kuma α ita ce temperature coefficient of resistance (0.004 for copper).
Za a kiran alama ma'adancin resistance da malami ko hukumomin da suka san a kan in tabbatar da akwai abu mai sauka ko kuma ci gaba.
Measurement of Insulation Resistance
Wannan hukumi na iya sharhiyar resistance ta insulation bayan windings da kuma bayan windings da earthed parts na shunt reactor ta hanyar high-voltage DC source (usually 500 V or 1000 V) da megohmmeter. An yi hukumi a faren ta'adanci da kuma bayan inda ake kawo duk takarda na gwargwadon bahaushe. Muhimmancin wannan hukumi shine don in tabbatar da kwaliti da kuma ci gaban insulation da kuma in samun abubuwan mai sauka, dirt, ko kuma damage.
Za a sarrafa alama ma'adancin insulation resistance ta hanyar yadda ake bayyana a nan:
ida Rt ita ce insulation resistance a faren ta'adanci t (°C), R20 ita ce insulation resistance a faren ta'adanci 20°C, da kuma k ita ce constant wanda yake daidaitar da irin insulation (usually between 1 and 2).
Za a kiran alama ma'adancin insulation resistance da malami ko hukumomin da suka san a kan in tabbatar da akwai abu mai sauka ko kuma ci gaba.
Measurement of Reactance
Wannan hukumi na iya sharhiyar reactance ta kowane winding na shunt reactor ta hanyar low-voltage alternating current (AC) source (usually 10% of rated voltage) da wattmeter ko power analyzer. An yi hukumi a faren ta'adanci da kuma bayan inda ake kawo duk takarda na gwargwadon bahaushe. Muhimmancin wannan hukumi shine don in tabbatar da inductance da impedance ta windings da kuma don in samun reactive power consumption.
Za a sarrafa alama ma'adancin reactance ta hanyar yadda ake bayyana a nan:
ida Xt ita ce reactance a voltage Vt, da X10 ita ce reactance a 10% rated voltage (V10).
Za a kiran alama ma'adancin reactance da malami ko hukumomin da suka san a kan in tabbatar da akwai abu mai sauka ko kuma ci gaba.
Measurement of Losses
Wannan hukumi na iya sharhiyar losses ta kowane winding na shunt reactor ta hanyar low-voltage AC source (usually 10% of rated voltage) da wattmeter ko power analyzer. An yi hukumi a faren ta'adanci da kuma bayan inda ake kawo duk takarda na gwargwadon bahaushe. Muhimmancin wannan hukumi shine don in tabbatar da efficiency da power factor ta windings da kuma don in samun total losses.
Alama losses suna da biyu abubuwa:
Copper losses: Wadannan suna daidaitar Joule heating
