learn.howToCalculate
learn.whatIsHeading
Harmonic Distortion Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.
공식
THD = √(V₂² + V₃² + ...) / V₁ × 100
단계별 가이드
- 1Measure fundamental and harmonic voltages with power quality meter
- 2Apply the formula using your project measurements
- 3Add required safety factors or waste allowances per code
풀어진 예시
입력
V1=120V, V3=6V, V5=4V
결과
THD = √(36+16)/120 × 100 = 6.0%
피해야 할 일반적인 실수
- ✕Not applying code-required safety factors or derating
- ✕Forgetting to account for waste and cut losses in material estimates
계산할 준비가 되셨나요? 무료 Harmonic Distortion 계산기를 사용해 보세요
직접 시도해 보세요 →