For a variety of applications, using current transformers is an efficient way to sense current with minimum insertion loss. William Hays, BH Electronics, Marshall, Minn. Current transformers can ...

Precision transformer circuits play key roles in applications such as TRA bridges. Here’s an equivalent circuit that surpasses most others when looking to meet those accuracy demands. If you search ...

Understanding the role of short-circuit current is critical to the reliability of your electrical system and to the safety of the people who maintain it. When designing or modifying a distribution ...

Instrument transformers provide reliable and accurate input for the protection, control and monitoring of power grid assets such as motor control centers, UPS systems, utility metering, low and medium ...

Like many hackers, [Matthias Wandel] has a penchant for measuring the world around him, and quantifying the goings-on in his home is a bit of a hobby. And so when it came time to sense the current ...

A series of new current transformers are designed for 600-V class systems; 15-kV units are optional. Applications include relays, circuit breakers, switchgear, and HVAC equipment. Available in several ...

Austin, Tex. Silicon Laboratories Inc. has introduced tiny low-loss, high-accuracy AC current sensors for a wide range of power applications. The Si8500 integrates the functional equivalent of a ...