🔢 Calculators
Quantity Configuration Calculator
Determine the optimal number of power units based on total load requirement, individual unit capacity, and desired redundancy configuration (N, N+1, 2N).
Calculation Formula
Active Units = ⌈Total Load / Unit Capacity⌉ | Total Units = Active Units + Redundancy
Total Load: Sum of all required capacity (kVA)
Unit Capacity: Rated capacity of each individual unit (kVA)
Redundancy: Extra units for fault tolerance (N=0, N+1=1, 2N=active count)
Input Parameters
e.g., 500 for a 500 kVA total need
kVA
e.g., 100 for 100 kVA per unit
kVA
N = no redundancy, N+1 = one spare, 2N = full redundancy
Configuration Result
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Redundancy Mode Guide
N Configuration
No redundancy. Minimum units for the load. Suitable for non-critical applications where downtime is acceptable.
N+1 Configuration
One spare unit. If any single unit fails, the system continues operating. Standard for commercial and industrial use.
2N Configuration
Full redundancy — double the active units. Required for mission-critical systems like data centers and hospitals.
Load Balancing
Distribute load evenly across all active units. Keep each unit at 60–80% of rated capacity for optimal efficiency and lifespan.