📡 Ultra-Fast Optical Relays (1.5ms Optical Fiber Light Detection + Solid-State Trip)

Optical Arc Flash Relay Calculator

Size point-sensor and bare-fiber optical arc flash detection relays (SEL-751 / ABB REA) inside medium-voltage switchgear: calculate ultra-high-speed clearing times (optical light sensor detecting internal arc in <1.5 milliseconds, initiating fast breaker trip in <40 ms total to eliminate catastrophic switchgear explosions and keep energy <2.0 Cal/cm²), and protection profits.

1. Project & Operating Inputs

MV Switchgear Lineups Protected (Switchgear Bay Count e.g. 12 MV Bays)

Available Arc Flash Energy (Cal/cm² Baseline e.g. 48.0 Cal/cm² Hazard)

Customer Bid Price for Supplied, Looped & Commissioned System ($ / Bay)

SEL Optical Loop Sensors, High-Speed Output Relays, NETA Calibration ($ / Bay)

2. Financial Breakdown & Yield

OPTICAL ARC FLASH SENSING

Turnkey Optical Arc Relay Scheme Profit

Protection Engineering Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost