Schetchikhoi elektricheskoi energii threefazni mnogofunktsionalni KVANT ST3 baroi izmerish uchun energiyai aktiv va reaktsionii elektricheskoi energiyai to'g'ridan-to'g'ri va orqaga yo'nalishda vaqt bo'yicha farqlangan tariflar bo'yicha uchfazali to'rt simli zanjirlarida o'zgaruvchan tok chastotasi 50 Gts.
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