Cov txheej txheem kom tau cov qauv tam sim no thiab hluav taws xob ntawm cov khoom siv hluav taws xob reactive hluav taws xob tswj

Cov khoom siv hluav taws xob reactive hluav taws xob yog cov khoom siv tseem ceeb rau kev kho hluav taws xob reactive hauv lub zog. Qhov tseeb tau txais ntawm cov qauv tam sim no thiab voltage los ntawm cov maub los no ncaj qha cuam tshuam cov txiaj ntsig kev them nqi thiab system ruaj khov. Yog li, cov hau kev tau txais cov qauv tam sim no thiab hluav taws xob ntawm cov khoom siv hluav taws xob reactive?

I. Txoj kev ntsuas tam sim no

1. Tam sim no hloov pauv (CT) cov qauv

Qhov chaw teeb tsa: feem ntau ntsia hauv lub circuit Court lossis cov nyiaj them nqi.
Txoj kev sib txuas: Hauv ib peb {-} theem plaub - xaub hlau, 3 CTS yog siv; Hauv ib peb {- {{{4 4}} xaim system, 2 cts yog siv (ob {}} theem txuas kev twb kev sib txuas hom kev sib txuas)

2. Hall sensor kuaj

Muaj feem xyuam nrog cov xwm txheej: DC lossis AC tshuab
Cov yam ntxwv ntawm cov txuj ci: kev ua kasmation zoo; Muaj peev xwm ntsuas ntsuas dc Cheebtsam; High yuav tsum muaj rau qhov kub kom ruaj khov.

Ii. Voltage sampling qauv

1. Voltage transformer (PT) kev ntsuas

Cov Qauv Txheej Txheem: Kev Ntsuas Hluav Taws Xob Ntaus Cov System; Chav kawm yog 0.2 lossis 0.5; theem nrab rated voltage feem ntau yog 100V.
Kev Txuas Txuas: V {{{0} V Txuas (peb {{1} {- xaim); Y - y kev sib txuas (peb {{{}}}} {{5} xaim} xaim).

2. Kev Tiv Thaiv Voltage Divis Sampling

Muaj Feem Xwm: Tsawg - qhov system siab
Cov Qauv Tseem Ceeb: Kev Xam ntawm voltage divio sib piv; Kev xaiv ntawm cov kev cuam tshuam kub ua kom kub ntxhov; Kev tsim qauv ntawm cov npoo hluav taws xob.
Cov txiaj ntsig: tus nqi qis; Loj me me; Tsis muaj teeb meem kev sib nqus.

3. Capacitor Voltage Divenance Sampling

Nta: Haum rau high - cov ntawv thov; Tsawg siv hluav taws xob; Kev ruaj khov zoo.