Test Measurement -o- Data Interface -o- Custom Projects -o- Hobby Projects
Sunday, January 01, 2017
Museum Of Electricity - Charles Brush
The General Electric Company was formed in 1892. It was the result of a meger between the Edison General electric Company and the Thomson-Houston Company, which themselves incorporated several other companies.
Electricity, technology, and lots of arcs and sparks!
Museum Of Electricity contains Vintage Electrical and Historical images and description. They include the Edison Lamp, Tesla Coils, Lightning and Atmospheric Electricity and the .....
Amazing Jacob's Ladder
So how do they work? First two conductive metal rods are positioned in a rough “V” shape with a slight space between them at the base. A sufficient voltage differential is provided from a high voltage transformer to breakdown the air in the gap between the rods.
Thursday, April 07, 2016
High Voltage Experimenter's Handbook
delabs Notes -
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 .
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 equipment with proper prior training. Then you should have experience in Mains power and energy systems. Lastly you should be above 20 Yrs of age and Learn HV theory and Practice under a Very experienced professional in that Specialization. Jim Lux has created some valuable pages on HV.
High Voltage Experimenter's Handbook
There is no harm whatsoever now in studying and mastering the theory and also teaching others about the energy that is in high voltage. HV in HF is even more funny.
More EE Stuff at Jim Lux's Web site
All that can be invented is already invented by nature. Man can only uncover a few facts and write about it. Start with this handbook. Life is precious, take care.
Thursday, March 12, 2015
Charles Proteus Steinmetz
(April 9, 1865 - October 26, 1923)
He made ground-breaking discoveries in the understanding of hysteresis that enabled engineers to better design electric motors for use in industry.
Charles Proteus Steinmetz electrical engineer
Hysteresis - Charles Proteus Steinmetz
"Eickemeyer wanted to expand into electrical motors and generators, a brand new field in 1889."
AC hysteresis theory
Shortly after arriving in the U.S., Steinmetz went to work for Rudolf Eickemeyer in Yonkers, New York, and published in the field of magnetic hysteresis, which gave him world-wide professional recognition.
Eickemeyer's firm developed transformers for use in the transmission of electrical power among many other mechanical and electrical devices. In 1893 Eickemeyer's company, along with all of its patents and designs, was bought by the newly formed General Electric Company, where he quickly became known as the engineering wizard in GE's engineering community.
I read about Steinmetz long ago in a Reader Digest that belonged to my grandfather. It was dated like 1950-60. These issues have become brown and have been ruled by silverfishes.
I cannot find that article but i remember it roughly ......
People from/related to GE had problems with thier electrical equipment heating up a lot. Then they heard of this person of Germany who had mentioned about some remedy to such issues.
They visited him in his loft or some upstairs room where the solution to this problem was discussed and the rest is remarkable history for Electrical Engineering.
The part of the story i remember most was that in one of his wardrobe drawers, a Mama Mouse had made it her home and was also having her kids here. Not only did the compassionate Steinmetz allowed it to keep her quarters, he even attended to the new family with some food and necessities.
Heard of very few angels like this.
by Anantha Narayan delabs
Wednesday, April 16, 2014
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 training one has received or how much employers try to safeguard their workers, Electrical Safety is ultimately the responsibility of the electrical worker.
Electrical Safety Hazards Handbook
Power Studies, Arc-Flash Hazard Labeling, Data Gathering and Inspection, Engineering Services.
The steps to osha electrical safety
Electrical Design, Lighting and most important Earthing or Grounding. Good Reference Articles and Product Reviews.
Electrical Construction and Maintenancee Power Quality, National Electric Code, Construction, V/D/V, Ops, Equipment Rental Industry Resourc
AC Power has the 50/60 Hz noise, now more AC noise can be picked up by poorly designed systems when so many gadgets around. These articles are also relevant for the instrumentation engineer. Dissonance is encountered when you build sensitive strain gauge based measurements or while measuring and transmitting micro-volts from a remote sensor to the dashboard/control panel.
International leader in electromagnetic compatibility (EMC) and power quality (PQ). EMC Filters, RFI Suppression Chokes, Feedthrough Components.
Schaffner - EMC/EMI components, harmonic filters & magnetic components.
Schaffner - electromagnetic compatibility
Monday, June 17, 2013
Technical Resource - Marc Dekenah
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.
Connecting Up For Intermittent/Nuisance Trips
"Intermittent trips are circuit breakers rightfully operating because of an unknown cause or fault. Nuisance trips are a breaker deeming a non-existent fault has occurred and, in so doing, operates without need."
"Faultlink International is a fully independent broad-range electrical/electronics fault investigation and analysis
FaultLink International - Electrical Power Diagnostics
Saturday, January 31, 2009
A ThunderBolt Zap can damage electronic parts. The Earth Leakage Circuit Breaker ELCB or Overload Breaker may Trip.
Mains Strip Board should have protection, The EMI RFI filter, Varistors can help. Earthing and Lightning Arrestors should be good in the building.
Thursday, April 10, 2008
Good Earthing Prevents Shocks and Prolongs Appliance Life
Earthing in the olden days was done like this, i have just mixed what i have heard with my common sense and this is what it may be.
Make a deep pit, 4 feet deep, 1/2 feet dia, put long copper rods ( GI pipes or lead pipes were also used). Let the copper rods be driven deeper than the four feet that has been dug. mesh the rods with copper mesh or wire (GI chicken mesh). Fill the pit with all the conductive things which are bio-degradable, non-toxic, non-corrosive and non-soluble. They used coal, charcoal, salt, scrap metals. (now they have a polymer conductive gel). Terminate the copper rods to a thick copper wire run it to your mains box in a way it cannot be cut or broken when gardening etc.
The mains box should be fitted with HRC fuses and MCBs as required, use a ELCB too. The MCB trips when a over current load is drawn, there are both thermal (thermostat technology) and electromagnetic (relay technology) MCBs. The ELCB does not have a earth wire, it trips when the current in the live and neutral paths are unequal. When the difference is say 20mA it trips. This 20mA would have gone thru the ground wire or thru a person giving shock. Also use Over Voltage and Under Voltage Trips if possible, Many equipment fail due to this.
HRC -- High Rupture Capacity.
MCB -- Miniature Circuit Breaker.
ELCB -- Earth Leakage Circuit Breaker.
GI -- Galvanized Iron
Also do not forget a lightning rod on the top of the house, whose path to ground is far from the earth pit. Lightning also zaps phones etc. Use Zener barriers for all interfaces between equipment and isolation transformers.
Cable TV wires, phone wires, and mains wires all may get mixed up. During rainy days even a phone line or TV cable may give shock or blow input circuits in equipment. This may be due to mains leakage or lightning.
Before you touch any metal object, cross your fingers, better still buy a long neon tester.