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All Updated Guides

When to Use kVA Instead of kW

When to use kVA instead of kW for generators, UPS, and transformers. Free decision table with PF examples—convert in the kW to kVA calculator.

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NEMA Starter Size Chart (HP × Voltage + Selection Example)

NEMA motor starter size chart by HP and voltage—Size 0–4 reference, overload FLC rules & 50 HP @ 460 V example.

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Motor Starting Current (6–8× FLC) Formula & Protection

Motor starting current formula (~6–8× FLC) with free 3-phase example. Instant guidance for breaker/overload sizing—open calculators.

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Factory UPS Selection (Topology, kW/kVA & Runtime Checklist)

Pick factory UPS topology, kW/kVA, runtime, SNMP & graceful shutdown. Free RFQ checklist tied to CalcPanel UPS calculators.

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Energy Cost Optimization ($142k Peak Audit Case)

Energy cost optimization: map kWh/kW/kVAR tariffs, rank peaks, shave demand. Free $142k factory case—model savings in the energy estimator.

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Electrical Load Analysis Formula (Factory kW → kVA → Amps)

Electrical load analysis for factories: connected kW → diversity → kVA → amps. Free formula, examples—open the factory load calculator.

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UPS Runtime Formula: Battery Wh ÷ Load W (+ Example)

Estimate UPS runtime from string voltage, Ah, parallel strings, efficiency and load watts. Includes a consistent 48 V example and OEM-curve limits.

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Industrial HVAC Sizing Framework (Rule-of-Thumb vs Detailed Load)

Industrial HVAC sizing framework: when W/m² proxies fail, how to split sensible/latent loads, and when to escalate to detailed calculation. Free examples + calculator links.

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How to Calculate Industrial Energy Consumption

Calculate industrial kWh from measured kW and operating time. Includes variable-load, duty-cycle, cost, demand, reconciliation, and metering examples.

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HVAC Design for Factories (12k m² Zone Load Case)

HVAC design for factories: zone sensible/latent table, OA vs exhaust, DOAS split. Free 12k m² example—500 kW coincident vs 650 kW oversize case.

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