IEEE/IEC 변압기 용량 계산 차이점

 

IEC STANDARD: GENERATOR 에서 TRANSFORMER 로 입력되는 TRANSFORMER 입력을
TRANSFORMER 용량이라 정의함

ANSI/IEEE STANDARD: TRANSFORMER 에서 송전선로로 출력되는 TRANSFORMER 출력을 
TRANSFORMER 용량이라 정의함

(IEC 60076-1 CLAUSE 4.1)
… THE INTERPRETATION OF RATED POWER ACCORDING TO THIS SUBCLAUSE IMPLIES
THAT IT IS A VALUE OF APPARENT POWER INPUT TO TRANSFORMER – INCLUDING ITS
OWN ABSORPTION OF ACTIVE AND REACTIVE POWER. … THIS IS DIFFERENT FROM THE
METHOD USED IN TRANSFORMER STANDARDS BASED ON US TRADITION

 

(ANSI/IEEE C57.12.00) 
WHERE ‘RATED KVA’ IS ‘THE OUTPUT THAT CAN BE DELIVERED AT … RATED
SECONDARY VOLTAGE …

 

 

아래의 온도 조건일 경우

<Calculation of yearly weighted average Temperature ( E θ )>

 

According to IEC60076-7 Cl 8.3.1, the yearly weighted average temperature shall be calculated as per following formula: