Kunshi na Shunt Reactor

Taifutuwar Shunt Reactor

Akwai amfani da shunt reactor don kula yadda take da abubuwa mai girma na reactive power a cikin hanyar zabe ta tsari.

Core na Shunt Reactor

Shunt reactors suna amfani da core da girmama, wanda ake gina ne daga Cold Rolled Grain Oriented Silicon Steel don kula yadda take da hasasar hysteresis. Ake sanya alamomin fereti don kula yadda take da hasasar eddy current. Ana iya fada gaske-gaske da electrical modulus masu yawan tsaro bayan lamination packets don samun inganci. Yana da muhimmanci a yi 5-limb, 3-phase core structure a shell form, idan kuma akwai an girmama shi a tsofaffinsu uku.

Winding na Shunt Reactor

Babu wani abu mai kyau a kan winding na reactor. Wannan ya kunshi mafi yawan conductors mai kofa. Conductors suna da paper insulation. Ana baka insulated spacers bayan turns don kula yadda take da hanyar oil circulation. Wannan sauyin ya taimakawa don kula yadda take da hukumomi na winding.

Cooling System na Reactor

ONAN (Oil Natural Air Natural) cooling system, wanda ya kula yadda take da hukumomi har zuwa hanyar shunt reactors masu high-voltage saboda hanyoyin low current operation, ana amfani da radiator bank da ke magance da main tank don samun inganci.

Tank na Reactor

Don UHV da EHV systems, main tank, wanda yana da muhimmanci a bell tank type, ana gina shi daga alamomin fereti masu yawan tsaro suka dogara su biyu don kula yadda take da hukumomi a kan full vacuum da atmospheric pressure. Wadannan tanks suna da cutar da za a iya yanayi a kan tsarin hanyar road da rail.

Conservator na Reactor

Ana baka conservator a tsofa na tank da main tank to conservator connecting pipe line da yawan tsaro. Conservator yana da muhimmanci a cylindrical tank da yake da cutar da za a iya yanayi a kan oil don sakamako saboda temperature rise.

 Ana baka flexible separator bayan air da oil ko air cell a conservator don wannan abu. Tank na conservator ta da magnetic oil gauge don kula yadda take da oil level a reactor. Magnetic oil gauge ta kula yadda take da alarm through a normally open (NO) DC contact, da ke ake fuskantar ita a lokacin da oil level ya karkashin yawan tsaro saboda oil leakage ko wani abu.

Pressure Relief Device

Saboda fault mai yawa a cikin reactor zai iya kasance sakamoko da yawan tsaro na oil a cikin tank. Wannan yawan tsaro mai yawa na oil ya kula yadda take da hukumomi a kan reactor don kula yadda take da hukumomi a kan live power system. 

Pressure Relief Device ta yi wannan abu. Wannan shine mechanical device mai spring loaded. Ana fitshin shi a tsofa na main tank. A lokacin da actuation, yawan tsaro na oil a tank ya zama yawan tsaro da ya karkashin spring pressure, saboda haka za a bude valve disc na device don oil ya ci gaba don kula yadda take da hukumomi a cikin tank.

 Akawo mechanical lever da ke ake fuskantar device, wanda ya zama a horizontal position. Idan device ya zama actuated, wannan lever ya zama vertical. Daga ground level, muna iya nuna cewa Pressure Relief Device (PRD) ya zama actuated ba. PRD ta da trip contact don trip shunt reactor a lokacin da actuation na device.

N B: – PRD ko wata device kadan ba zan iya reset remote a lokacin da ita zama actuated. Zan iya reset shi manual don bayyana lever zuwa original horizontal position.

Buchholz Relay

An fitshin Buchholz relay across the pipe connecting the conservator tank and main tank. Wannan device ta juye gases generated in the oil and actuates the alarm contact attached to it. It has also a trip contact which is actuated at the event of sudden accumulation of gas in the device or rapid flow of oil (oil surge) through the device.

Silica Gel Breather

Idan oil ya zama hot, ya zama sakamako, saboda haka air from conservator ko air shell (idani ake amfani da air shell) ya ci gaba. Amma a lokacin da contraction, air from the atmosphere enters into conservator ko air shell (idani ake amfani da air shell). Wannan process shine breathing of the oil immersed equipment (like transformer ko reactor). 

A lokacin da breathing, obviously moisture can enter into the equipment if it is not taken care of. An fitshin pipe from conservator tank ko air shell with a container filled with silica gel crystal. Idan air ya ci gaba through it, moisture is absorbed by the silica gel.

Winding Temperature Indicator

Winding temperature indicator shine indicating meter associated with a relay. This consists of a sensor bulb placed in an oil filled pocket on the roof of reactor tank. There are two capillary tubes between sensor bulb and the instrument housing. 

One capillary tube is connected to the measuring bellow of the instrument. Other capillary tube connected to the compensating bellow fitted in the instrument. The measuring system, i.e. sensor bulb, both capillary tubes and both bellows are filled with a liquid which changes its volume when temperature changes. 

The pocket in which the sensor bulb is immersed, is surrounded by a heating coil which is fed by a current proportional to the current flowing through the winding of reactor. Gravity operated NO contacts are attached to the pointer system of the instrument to provider high temperature alarm and trip respectively.

Oil Temperature Indicator

The oil temperature indicator, featuring a sensor bulb in an oil-filled pocket at the reactor tank’s hottest point, uses two capillary tubes to link the sensor with the instrument’s measuring and compensating bellows. These components are filled with a liquid that expands or contracts with temperature changes, providing accurate temperature readings.

Bushing

The winding terminals of each phase comes out from the reactor body through an insulated bushing arrangement. In high voltage shunt reactor, the bushings are oil filled. The oil is sealed inside the bushing that means there is no link between the oil inside the bushing and oil inside the main tank. Oil level gauge is provided on the expansion chamber of the condenser bushings.