Wednesday, October 12, 2011

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 protection in order to carry electric surge load arisen from faults in low voltage electricity system (single phase/220V) by using the principle of electronics load clamping voltage during induction period so that electric voltage could go through to safe load and continue to work. The qualification of the designed device could prevent both transient over voltage and voltage swell.

Design of AC Electronics Load Surge Protection - World Academy of Science, Engineering and Technology - WASET

See a product from the MTL Instruments Group. They have a Comprehensive range of surge protection devices offering solutions for all mains power, process control, network and communications, telecom, wireless and RF systems.

ZoneMaster Series

The ZoneMaster Series is available in units with either a 200 or 170kA surge handling capability. ZoneMaster is engineered to protect the most critical electronic systems, suppressing surges at the main service panel.

EMerge Alliance - Safe Low-voltage Power

EMerge Alliance - Safe Low-voltage Power
"The EMerge Alliance was established to promote the rapid adoption of safe, low-voltage DC power distribution and use in commercial building interiors."
 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 at Greenbuild 2009. Demo features ceiling grid, lighting, sensors and controls

Tuesday, October 11, 2011

Electrical Safety and Clean Power

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 SafetyElectrical 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

Earthing or Grounding is something Audio Enthusiasts make a lot of fuss about. The Articles here about Balanced Power, Symmetrical Power Systems and Earthing throw light on ways to counter Audio Noise.

Clean PowerAC 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.
Index of Technical Articles About Balanced Power

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

Thursday, October 06, 2011

Analog Devices - Process Control

In my early learning/building days 80s/90s, Chips and Hybrids of Analog Devices and Burr Brown were very expensive and their performance was unquestionable. They made building sensitive and precision instruments easy for an Instrumentation design engineer.

Process Control & Industrial Automation - Analog Devices

Another brand that was good/expensive for analog was Datel-GE. Another GE company called Intersil made the best chip-solutions with cmos. They not only worked well, they were also affordable and had low power consumption.

Programmable Logic Controllers - Analog Devices

Isolated 12 bit Voltage input, using AD8275, AD7920, ADR392 to measure +/-10v ranges. Includes Power Management solution.

Programmable Logic Controllers - Distributed Control Systems

Wednesday, October 05, 2011

Embedded Design Services - PHYTEC America

High quality design and production of OEM-able System on Module (SOM) subassemblies and Rapid Development Kits that accelerate microcontroller-based embedded developments.

PHYTEC America - Rapid Development Kits

Embedded Hardware Design, Software for Embedded Design (Windows and Linux). Complete Turnkey System Design Services.

Embedded Design Services

PCB Layout Design, Low EMI design and Power management. Most connectivity and Interface types.

Embedded Design Services - PHYTEC America

The Freescale i.MX6 Series includes a highly scalable family of embedded processors based on ARM Cortex-A9 technology with single-, dual-, and quad-core offerings delivering up to 1 GHz per core.

System on Module - phyFLEX-i.MX6 - Freescale Cortex A9 Single Dual Quad Core

"The phyFLEX SOM provides a flexible platform designed to plug into the PHYTEC phyFLEX base Carrier Board providing a standard set of physical I/O connectors as well as any other interface circuitry not provided on the phyFLEX module itself."

PHYTEC America
203 Parfitt Way SW, Bainbridge Island, WA 98110

Tuesday, October 04, 2011

Avalue Technology - X86 and RISC Hardware - Taiwan

Designs and manufactures PC-based industrial computer products. Embedded Systems, Single Board Computer and Industrial Motherboard and Computers for HMI. Products include the X86 and RISC ARM platforms.

Intel 945GME Core 2 Duo Tiny embedded system
Avalue Technology - X86 and RISC Hardware - Taiwan

They also have ETX/COMexpress Modules, Peripherals and Ruggedized Systems. Multi-functional Touch Panel PC for Terminals in Medical, Industrial and Business Computing.

Intel 945GME Core 2 Duo Tiny embedded system

Features Include -
  • Intel 945GME / ICH7-M Chipset
  • Dual Realtek RTL8111C Gigabit Ethernet,
  • Display Intel 945GME GMCH Integrated GMA 950 graphic
  • 1 CF, 1 COM, 3 USB
  • SSD One CompactFlash Type I/II socket
  • Supports 2.5" SATA HDD
ODM Process of Service Avalue Technology

"An Original Design Manufacturer -ODM is a company which designs and manufactures a product which is specified and eventually branded by another firm for sale. Such companies allow the brand firm to produce (either as a supplement or solely) without having to engage in the organization or running of a factory."

Address - 7F, 228, Lian-cheng Road, Jhonghe City, Taipei County, Taiwan. - Avalue Map
US Address - 200 Tornillo Way, Asbury Park, NJ 07712-7513, United States. Avalue US Map.