Does Transformer Hum Make You Nervous

Where Does the Sound Come From? Noise is caused by magnetostricition (changes in shape) of the core laminations while the transformer is energized. Transformers emit a low-frequency, tonal noise that people living in their vicinity experience as an irritating “hum” and can hear even against a noisy background. The electrical power industry produces a range […]

Smart Grid News chooses Win Inertia as a Smart Grid Company to Watch for 2016

Seville, Spain, 27 April 2016 – After reviewing an overwhelming number of applications, Smart Grid News has chosen Win Inertia as one of 15 Smart Grid Companies to Watch in 2016 (link). This award is given annually to select organizations in recognition of their dedication to innovation and effecting positive change in the energy industry.     

Differential Protection – Proven Technique For More Than 50 Years

Proven Protection Technique // The best protection technique now and for more than 50 years is that known as differential protection. Here the electrical quantities entering and leaving the protected zone or area are compared by current transformers (CTs). If the net between all the various circuits is zero, it is assumed that no fault […]

Superposition Theorem Used To Solve The Simple Network

Superposition Theorem Example // Using Superposition theorem, find the current through the 2Ω resistor of the network of Figure 1 above. The presence of three sources will result in three different networks to be analyzed. Solution // Considering the effect of the 12-V source (Fig. 2): Considering the effect of the 6V source (Fig. 3): […]

White House Speaker Brings Insights to Final Day of Energy Storage Conference

Charlotte, NC – April 27, 2016 – The final day of the Energy Storage Association (ESA) 26th Annual Conference and Expo kicked off with a keynote address from Richard Duke, Deputy Director, White House Office of Energy and Climate Change. Duke discussed climate and energy policy following the Paris accord, and how storage can play a role in the U.S.'s energy future.

Purpose And Applicable Processes Of a SCADA System

What is the SCADA system? SCADA is the technology that enables a user to collect data from one or more distant facilities and to send limited control instructions to those facilities. It is important to note the words “distant” and “limited” in this definition. SCADA has been developed to monitor and control very large process facilities. […]

Features of 3 circuit protection devices (MCB, RCCB and RCBO) you have probably forgotten

Circuit Protection Devices Traditionally, fuses were the main devices chosen for final circuit protection, up until the 1970's when circuit breaker technology started to become dominant. Today, the three principle circuit protection devices are: Miniature Circuit Breakers (MCBs), Residual Current Circuit Breakers (RCCBs) and Residual Current Circuit Breakers with Overcurrent protection (RCBOs) Miniature Circuit Breakers […]