🔥 NEMA MG 1 (Space Heater Watts = 2 x D x L Inches, Preventing Dewpoint Condensation)

MV Motor Space Heater Calculator

Size electric resistance silicone blanket and cartridge space heaters installed inside medium-voltage motor frames under NEMA MG 1 Section 14.38: calculate required heating capacity (Watts = 2 x Frame Diameter D Inches x Frame Length L Inches) to keep internal stator winding temperatures strictly 5°C to 10°C above ambient dewpoint during shutdowns, and motor reliability profits.

1. Project & Operating Inputs

MV Motors Retrofitted (Motor Count e.g. 18 Outdoor/Industrial Motors)

Stator Core Outer Diameter (Inches e.g. 36.0" Core Diameter)

Customer Bid Price for Supplied & Wired Space Heater System ($ / Motor)

120V/240V Strip Heaters, Automatic Interlock Relays, Electrician Labor ($)

2. Financial Breakdown & Yield

NEMA MG 1 MOTOR SPACE HEATERS

Turnkey Space Heater Retrofit Profit

Motor Winding Reliability Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost