The use of a linear optocoupler and a capacitor-based power supply yields a simple, yet precise power-line-monitoring system. The circuit in Figure 1 converts the 110V-ac power-line voltage to an ac ...

All questions and answers are based on the 2011 NEC. Q. What is the Code requirement for the use of slash versus straight voltage rated breakers? A. A circuit breaker with a straight voltage rating, ...

The circuit in Figure 1 provides a low-cost, isolated ac-line monitor that measures ac-line-voltage level and has some other unique capabilities. The analysis of the circuit is straightforward: When ...

Bowman Consulting Group Ltd. (NASDAQ: BWMN), a national engineering services and project management firm, today announced it has acquired Lazen Power Engineering, a Florida-based power engineering ...