Offset Voltage Of Hall Effect Sensors

We use Hall effect sensors to measure medium DC current without electrical connection, in the 20 amperes range. As the production of AsGa Hall effect sensors, which are the most sensitive in the 1 kiloohm impedance range, becomes obsolete in Europe, we use suppliers from other countries. I have ob

Generator Voltage Problem

hello,

i have Lester Peter generator 220-380 V- 14 kw , it works nice but whenever a load is connected the voltage drops nonetheless the frequency remains constant (no change in freq.) knowing that AVR is replaced and the load is not more than 5 kw.

note: the engine is running in i

Where Does Your Strategy Come From?

Gone are the days when you could create a comprehensive test-and-inspection strategy and implement it from a single vendor. Even the largest vendors have abandoned specific test steps to concentrate on their core expertise. How do you build your strategy? Do you start with vendors' offerings or with

It's in the Numbers

The U.S. Department of Agriculture anticipates that by certifying a product with as little as 25% organic content as "bio-based," consumers and companies will create higher demand for bio-based materials. Are they right? Should the content threshold be increased?

The preceding article is a "sneak p

Who Drives Innovation?

In his State of the Union address last month (you can view it again from the White House Web site), President Barack Obama said the U.S. needs to "out-innovate, out-educate, and out-build the rest of the world" if the country is going to "win the future." The government can aid this effort, in part,

Paperless: Are We There Yet?

Early in the Information Age, many were sold the dream of the paperless office. All the reports, forms, drawings wouldn't ever have to make it to paper. "Going paperless" would save money, boost productivity — mainly from time savings in managing and sharing documents, but also big floor space

Looming U.S. Battle on Fast Trains

From IEEE Spectrum:

In the U.S. budget proposal for the next fiscal year unveiled this week, the Obama administration is seeking $53 billion to promote development of fast train lines like those in Europe and Japan. "At least two projects—a proposed Tampa-to-Orlando route

Isolating Disturbing Loads

Hi, I think isolating the disturbing load is a bit confusing to me, if a load is disturbing namely it starts up with a big current such as motors welders etc. so what difference makes to isolate these loads from the sensitive ones .İn essence they really are fed through the say same transformer

certifications for power systems

Hi all,

I am working as testing & commissioning engineer of electrical systems upto 400kV for the past 3 yrs. I want to know is there any certification courses in india like "certified protection engineer". Thanks in advance.

electronic components from elecsound

Elecsound is a manufacturer of high quality, high reliability electronic components, We offer a broad range of capacitors, LEDs, Cermet Trimming Potentiometers , PCBs and varistors. Also we can offer switches, Resistors and semiconductors. Our staff has over 10 years of experience with excellent Eng

differencial protection tranformer

dear sir,

we have 15kv genaretor(GE)240MW and 15\220 transforme we have started for frist syncro with 220kv bus , and we got defferencial protection in theree phase , thaa relay is GE C60T , we did secondary injection throw tha cable end to end from both sides, current and an