- 2026-04-07April
Case for Electric Power Submetering
For decades, electrical power submetering was an attractive idea but difficult to implement. Traditional electro mechanical utility meters—mounted outside buildings and designed only to track total incoming power—offered limited insight. They provided coarse, infrequent readings at the kilowatt level, making it impossible to understand how electricity was being used inside a facility. Today, that has […]
- 2026-03-10March
Energy Management in Server Farms
Energy management in server farms is crucial for balancing performance, sustainability, and cost efficiency. Key strategies include: Server Consolidation: Consolidate workloads onto fewer machines during off‑peak hours. Shut down or hibernate idle servers. Use orchestration tools to balance performance and energy. Hardware Optimization: Identification of underperforming servers/ energy inefficient servers. Select servers for high performance […]
- 2026-03-04March
UL2808 Certified Split-core Current Transformer
Maximize the efficiency and reliability of your AC power system with the CTSR family of mini split core current transformers. Engineered for compact installations and precision AC current measurement, these transformers deliver dependable performance in even the most space constrained electrical environments. 🔧 Compact, Fast, and Reliable Installation The CTSR series features a mini split […]
- 2024-06-19June
Compact CTSR Split-Core Current Transformers: Precision in Tight Spaces
Maximize your AC power system’s efficiency with the CTSR family of mini split-core current transformers. Designed for seamless integration into space-constrained environments, these transformers offer a swift and straightforward installation process. Experience unparalleled accuracy in AC current measurement, thanks to the high-performance magnetic core housed within a compact form factor. Durability meets convenience with the […]
- 2024-01-04January
Electrical Power Submetering – Why Part 2
In an AC powered system, the ratio between the AC power that actually performs work (Watt = Voltage times Current) and the power that is applied (applied voltage times applied current) is measured by the Power Factor. A power factor of 1.0 means that all of the applied AC voltage and AC current performs work. […]
- 2023-12-04December
Electric Power Submetering – Why
The concept of electrical power submetering has been considered for decades, however, until recently implementation was impractical. The available technology was the standard electro-mechanical meters installed by electric utilities on the outsides of buildings at the point of entry of the electric power from the electric utility distribution grid. These meters can provide information on […]
- 2020-05-07May
Mini DC Split-core, Hall Effect Sensors
The 16mm opening and 24mm opening mini spit-core, open-loop, Hall Effect sensors are ideal for retrofitting DC sensors in tight physical environments. The HOS016 and HOS024 families of mini split-core, open loop Hall Effect current sensors offer fast and easy installation into existing electric power distribution systems where space is a premium. The split-core design […]
- 2020-01-30January
DC Leakage Current Sensors
A direct current leakage current sensor is used to measure the milli-ampere level DC current in a primary conductor with both AC (alternating current) and DC (direct current) components. The sensor uses the “magnetic modulation” technique to offset the AC component in the primary conductor by introducing an offsetting magnetic field. The offsetting magnetic field […]
- 2019-05-21May
AC Current Transformer Burden
The AC current transformers used for the accurate measurement of AC electric currents are designed to transform the AC primary current to a proportional AC voltage signal or a lower proportional AC current signal level that is appropriate for micro-processor based systems. The VA (Voltage – Amperage) burden that is imposed on the AC current […]
- 2019-04-16April
Accuracy Class for Current Transformers
The accuracy performance of an AC current transformer’s primary current to secondary signal transformation (where the secondary is either a current or voltage) is stated as Accuracy Class. The Accuracy Class for current transformers is measured in accordance with the IEC61869 standard. The IEC61869-2 standard specifies transformation accuracy for current transformers at different percentage levels […]
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