Dabbobi ko Karfi na Bankin Capacitor na Noma

A capacitor bank yana da shiga hanyoyi daban-daban a cikin kungiyar tashar, a tsawon tarihin. Don ci gaba da wannan hanyoyi a matsayin adadin sauti mai kyau, an sanar da capacitor banks da kwalifikoci masu yawan amfani. Zan iya ci gaba da shekarun da za a bayar.

1. 110% na tashar peak voltage.

2. 120% na tashar rms voltage.

3. 135% na rated KVAR.

4. 180% na tashar rated rms current.

Tashar Voltage Rating ta Capacitor Bank

A capacitor unit yana da cutar da ke yi don tashar single phase. Yana da kyau ya yi nasara da rayuwarsa zuwa 110% na tashar peak phase voltage na tashar, kuma yana da kyau ya yi nasara da rayuwarsa zuwa 120% na tashar rms phase voltage wanda yana nufin 120% na tashar peak phase voltage.

KVAR Rating ta Capacitor Unit

Capacitor units suna da KVAR ratings. Standard capacitor units da ake samu a kasuwanci, suna da KVAR ratings masu yawan amfani.
50 KVAR, 100 KVAR, 150 KVAR, 200 KVAR, 300 KVAR da 400 KVAR.
KVAR da ake bayar zuwa tashar yana da shakka da tashar voltage da formula aiki.

Temperature Rating ta Capacitor Bank

Wannan ne su ne abubuwan da ke sanya hawa a capacitor bank.

1. Capacitor banks na outdoor type suna da shiga a wurare mai karfi da zai iya faɗa ƙaramin hawa mafi yawan hawa.

2. Hawa take faru a capacitor unit saboda VAR da ke bayar daga unit.

Saboda haka, zai fi kyau a kan ƙarfafin hawa. A nan zan iya bayar da tushen da ake bayar da maximum allowable ambient temperatures:

Maximum Ambient Temperature

Don ƙarfafin hawa, zai fi kyau a kan ƙarin ƙasa a kan capacitor units. Yana iya amfani da forced air flow don ƙarfafin hawa.

Capacitor Bank Unit ko Capacitor Unit

Capacitor bank units ko kuma capacitor units suna da cutar da ke yi don tashar single phase ko three phase configuration.

Single Phase Capacitor Unit

Single phase capacitor units suna da cutar da ke yi don tashar double bushing ko single bushing.

Double Bushing Capacitor Unit

A nan, terminal da ke faru daga biyu na capacitor assembly suna faru daga casing da ke fito a biyu. Duk da cewa capacitor assembly suna da series parallel combination da ke fito a kan elementi, suna da insulation fluid casing. Saboda haka, baki daya da ke fito daga conductor da casing. Saboda haka, double bushing capacitor unit ana kiranta a matsayin dead tank capacitor unit.

Single Bushing Capacitor Unit

A nan, casing na unit yana da shiga a kan terminal na biyu. Single bushing ana amfani don terminal na tafkin assembly da kuma terminal na biyu ana haɗa a kan casing. Wannan yana iya samun daidai saboda duk da cewa terminal, duk conducting portion na capacitor assembly suna da insulation daga casing.

Three Bushing Capacitor Unit

Three phase capacitor unit yana da bushings to terminate 3 phase respectively. Ba a na neutral terminal a 3 phase capacitor unit ba.

BIL ko Basic Insulation Level ta Capacitor Unit

Duk da cewa capacitor bank yana da shiga hanyoyi daban-daban, kamar power frequency over voltages da lightening and switching over voltages.
Saboda haka, Basic Insulation Level yana da kyau a kan rating plate daga baki daya.

Internal Discharge Device

Capacitor units suna da internal discharge device wanda yana taimaka da quick discharge of residual voltage zuwa safe level, misali 50 V ko kadan, a kan lokacin da ake bayar da capacitor unit da kuma discharge period.

Transient Over Current Rating

Power capacitor zai iya shiga over current a lokacin da ake yi switching operation. Saboda haka, capacitor unit yana da kyau a kan allowable short circuit current a lokacin da ake bayar.
Saboda haka, capacitor unit yana da kyau a kan duka parameters da ake bayar.
Misalai rating ta typical capacitor unit:
Amsa, power capacitor unit zai iya bayar da:

1. Nominal system voltage a KV.

2. System power frequency a Hz.

3. Temperature class da allowable maximum da minimum temperature a oC.

4. Rated voltage per unit a KV.

5. Rated output a KVAR.

6. Rated capacitance a µF.

7. Rated current a Amp.

8. Rated insulation level (Nominal voltage/Impulse voltage).

9. Discharge time/voltage a second/voltage.

10. Fusing arrangement either internally fused or externally fused or fuseless.

11. Number of bushing, double/single/triple bushing.

12. Number of phase. Single phase or three phase.

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