Electrical

Electrical Engineering, Control Panels and Alternative Energy.

Home Power Magazine – Alternative Energy

 Electrical  No Responses »
Dec 292011
 

Home Power Magazine – Alternative Energy

A Pole-Mounted Solar-Electric Array

“When Richard and Karen Perez launched Home Power in 1987, their mission was to change the way people generate and use energy, one rooftop at a time. And for two decades, we’ve continued to broadcast this message, loud and clear. Over the years,..”

How to Install… A Pole-Mounted Solar-Electric Array: Part 1

How to install a pole-mounted solar-electric array- part one, sizing and setting the pole

Alternative Energy – Wikipedia

  • Biomass
  • Geothermal
  • Solar energy
  • Wind energy
  • Wave Power
 Posted by delabs at 10:52 am  Tagged with:

Facts of EMI and RFI from the Inside

 Electrical, Power Electronics  No Responses »
Nov 182011
 

Who would know better about Radio Frequency Interference and ElectroMagnetic Interference more than the Hams or Amateur Radio Community.

If they have to communicate effectively using limited resources, they have to deal with EMI/RFI effectively, While they build their equipment or combat Noise from other Machines and Installations nearby.

This problem needs more practical involvement and experimentation to learn, compared to learning something like Digital Electronics.

Equipment and Electricals like SMPS, AC/DC Drives, Motors, Solenoids and CFL Lamps are to be built/reinforced for low EMI/RFI emission/radiation.

Sensitive Medical Equipment like ECG or even a Aircraft can be seriously affected by Noise.

Radio Frequency Interference (RFI)

 Posted by delabs at 4:14 pm

Earthing Practice by Trevor Charlton

 Electrical  No Responses »
Nov 082011
 
Earthing Practice by Trevor Charlton

Earthing Practice by Trevor Charlton Methods of Earthing Earth Conductors Electrical interference Lightning Protection Power Quality and Utilisation Guide The PQ E-library is a collection of electronic technical reference documents covering introduction, costs, harmonics, resilience, voltage disturbances, earthing, energy efficiency and renewables/distributed generation Copper Development Association Educational Resources Computers cannot work without copper Electricity in buildings Copper Development Association Website for information on Copper and Copper Alloys Also See- Good Earthing Prevents Shocks

 Posted by delabs at 4:23 pm

Surge Protection and Lightning Arrestors

 Electrical, Power Electronics  No Responses »
Nov 012011
 
Surge Protection and Lightning Arrestors

Supplementary to EMI/RFI/EMC Immunity of an Equipment. Many Installations are subject to Highly Disruptive Electrical Environment not just EMI. Depending on the budget and the situation a solution has to be found. Sometimes a CVT or an Isolation Transformer can do a lot of good. Converting all Energy inputs to battery energy and having a Isolated Synthetic Sine Supply may be an expensive but good solution. Either way the devices that face the harsh environment have to be over rated along with these protections. Siemens Residential Surge Protection Abstract-This study examines the design and construction of AC Electronics load surge [Read More ....]

 Posted by delabs at 4:18 pm

EMerge Alliance – Safe Low-voltage Power

 Electrical, Power Electronics  No Responses »
Oct 312011
 

“The EMerge Alliance was established to promote the rapid adoption of safe, low-voltage DC power distribution and use in commercial building interiors.” EMerge Alliance – Safe Low-voltage Power Twitter Interface – @EMergeAlliance – Promoting adoption of Safe Low-voltage DC Interior Power Distribution. Highlights Occupied Space: The first available EMerge Alliance Standard creates a 24-volt DC microgrid for use in commercial interiors, featuring safety and flexibility along with efficiency benefits. See Registered Products. Data Centers: A 380-volt DC power standard focused on data center and telecommunication applications is under development. View Presentation. . EMerge Alliance 24 volt DC power system demo [Read More ....]

 Posted by delabs at 8:37 pm

Electrical Safety and Clean Power

 Electrical  No Responses »
Oct 242011
 

This is an educative and important guide for Electrical Equipment Safety. This can be also applied partially to Power Electronics and Home Energy Systems. Electronic Equipment also have to be maintained by Calibrating them and protecting them from environmental parameters like dust, grime, direct sunlight, moisture, humidity, sea wind (brine), corrosive fumes and chemicals. They should not be even placed near machines like a big lathe, sub-sonic or low frequency vibrations. Electrical Safety Testing Reference Guide Electrical Safety is a Serious Issue Electrical Safety in the workplace is the most important job of an electrical worker. No matter how much [Read More ....]

 Posted by delabs at 1:35 pm  Tagged with:

CIPCO Energy Library – Electrical Study

 Electrical, Power Electronics  No Responses »
Sep 232011
 

Presented in a Easy to understand, layman language. This Energy and Electrical Basics is a must for all who want to save power and lead a Green Lifestyle. Undertand your Appliance and The Energy Supplier. The way electricity is generated and reaches your home. CIPCO Energy Library – Electrical Study A class in basic electricity and how the electric utility industry generates and delivers power to customers. Designed primarily for use by utility field representatives who need to understand electrical principles. – Fundamentals of Electricity Covers the subject of motors from an explanation of how they work, to the advantages/disadvantages [Read More ....]

 Posted by delabs at 4:10 pm  Tagged with:

HV Handbook for the Experienced

 Electrical  No Responses »
Jun 222011
 
HV Handbook for the Experienced

First note a important point, HV is dangerous and the behavior of HV is shockingly unpredictable. Jim shown caged by Faraday but protected by the law of Gauss. Two medium sized Tesla coils from Brian Basura and Ross Overton were used to zap at him on April 15th … A true story – The Electrical Adventures of Jim Humidity, clothing, footwear, gloves and furniture all add to the safety factors. Not to mention the special insulators and probes in plastic and ceramic that guards your body from a fatal mishap. First you should be very capable in using normal electrical [Read More ....]

 Posted by delabs at 9:25 pm

Technical Resource – Marc Dekenah

 Electrical, Training Consulting  No Responses »
May 252011
 

Useful resource on Power Quality, Radio Telemetry, T&M and Interfacing. Marc’s Technical Pages Economical Impulse Generator, Measuring in Excess of 1kV, “Soft Earthing” Instruments and A Real LAN twist cable are pages you must read. Marc’s Technical Pages; knowledge-base of Faultlink International, an independent electrical / electronics fault investigation & analysis consultancy. Marc is an independent electrical/electronic fault investigation and analysis consultant with over 25 years of industrial electrics/electronics experience as Consultant, System Engineer, Technical Director, Design Engineer and more.

 Posted by delabs at 6:55 pm
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