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Monthly Archive for: «February, 2011»

How To Use A Digital Multimeter

A digital multimeter is used to make various electrical measurements, such as AC and DC voltage, AC and DC current, and resistance. It is called a multimeter because it combines the functions… Read more

Feb 23, 2011 | Edvard

How to use digital multimeter

Protection Relay – ANSI Standards

In the design of electrical power systems, the ANSI Standard Device Numbers denote what features a protective device supports (such as a relay or circuit breaker). These types of devices protect electrical… Read more

Feb 22, 2011 | Edvard

ANSI codes for protection relays

What Is Modulation?

Modulation is the use of one electrical signal to “control” a primary variable of another. For example, if an audio signal voltage is used to control the “amplitude” of a carrier signal,… Read more

Feb 20, 2011 | Sa'ad Eddin

Modulation - addition of information (or the signal) to an electronic or optical signal carrier

IP Protection Degree (IEC 60529) Explained

The protection of enclosures against ingress of dirt or against the ingress of water is defined in IEC529 (BSEN60529:1991). Conversely, an enclosure which protects equipment against ingress of particles will also protect… Read more

Feb 19, 2011 | Edvard

IP Protection Degree (IEC 60529) Explained

Technology Innovation Is Everybody’s Business!

For close to 10,000 years, science and technology have been at the heart of economic growth and social prosperity. From the agricultural revolution to the information revolution, advances in society have been… Read more

Feb 18, 2011 | Edvard

Technology Innovation
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