Kaç kVA Jeneratör Gerekir? (Boyutlandırma)

Approximate generator power S(kVA) = P × simultaneity × (1 + margin) / cosφ ile bulunur. Örneğin 200 kW toplam yük, 0,8 eşzamanlılık, %20 marj ve cosφ 0,8 için yaklaşık 240 kVA gerekir. Motor kalkış akımı ayrıca değerlendirilmelidir.

S(kVA) = P × simultaneity × (1 + margin) / cosφ
Example calculation: 200 kW toplam yük, eşzamanlılık 0,8, marj %20, cosφ 0,8 → S = 160 × 1,2 / 0,8 = 240 kVA; en yakın üst standart tipe yuvarlanır.

Generator Sizing (kVA)

Calculate the approximate generator power (kVA) based on total load, power factor, simultaneity, and spare margin.

Suggested power
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Effective load (kW)
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Notes: S(kVA) = P × simultaneity × (1 + margin) / cosφ. This vehicle does not include engine starting (starting) current. — For large, directly driven motors, instantaneous demand generation is very demanding and requires separate evaluation. UPS/critical loads and future growth must also be considered.
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How is it calculated?

  1. Enter the total active load (kW).
  2. Enter the power factor, concurrency, and spare margin.
  3. Press Calculate; the recommended kVA will be displayed.

Frequently Asked Questions

What should the generator's VA capacity be?
S is calculated as S = P·simultaneity·(1+margin)/cosφ; the result is rounded to the nearest higher standard type.
Why is motor starting current important?
Large motors, when started directly, draw multiples of their rated current at startup; the generator must be controlled separately to meet this instantaneous demand.
Why is a reserve margin left?
Gelecekteki yük artışı, verim kaybı ve güvenli çalışma için tipik olarak %20 civarı marj bırakılır.

Related tools and services

This tool and its content are for general informational purposes only; they do not constitute a binding inspection/declaration of conformity. Definitive results will be determined through on-site inspection in accordance with relevant legislation and standards. Get a quote →