Reducing High-End Printers’ Vulnerability to Power Quality Issues
The modern copier is a tremendously complex machine with many electronic and mechanical devices. The failure or even malfunction of a single component can cause defective printing, a system outage, or even machine failure. For end users, this is an unacceptable and costly loss of productivity from a major capital investment. For dealers, this means a service call using valuable personnel and potential component or product replacement. If the problems persist, reputation damage inevitably…
Cap-Ex, Op-Ex, and Energy Savings by Using an Automatic Transfer Switch (ATS) instead of an UPS
In applications where there is more than one AC power source, automatic transfer switches (ATS) can be used as a battery-less UPS system. It will provide higher reliability AC power to mission-critical loads at substantially lower cost compared to a traditional UPS (interruptible power supply) system that uses batteries.
Cap-Ex, Op-Ex, and Energy Savings from Automatic Voltage Regulators
In order to protect sensitive electronic and electrical equipment from unstable AC mains voltage, UPS (uninterruptible power supply) is commonly used. However, UPS is not always an optimal power protection solution due to its high purchase price, low power conversion efficiency (typically around 90%) and high costs due to maintenance, repair and battery replacement. In applications where five to ten minutes of UPS battery backup is not required, a high-performance automatic voltage regulator,…
Why Power Supplies and Semiconductors Fail
During the discussion of why power supplies and semiconductors fail, this paper explains the causes and results of power disturbances, along with some problems with current solutions.
A Comparison of AC Voltage Regulation Technologies
This paper discusses what users need to know before deciding on what type of AC voltage regulator to purchase, highlighting the advantages and drawbacks of four different technologies.
IEC 61312 Surge Protective Device Coordination and Four Coordination Variants
This paper explains the purpose and concept of surge protective device (SPD) coordination in accordance with the IEC 61312 standard to reduce the effect that lightening surges has on vulnerable equipment.
UPS Ratings – Not so Apparent
This paper discusses how to select the right UPS for your application and why UPS products shouldn't be rated in VA.
Coordination of Telecommunications Surge Protected Devices in Countries with Unstable AC Power
Learn more about why the need for surge protective devices varies from market to market and is especially challenging in the emerging countries. This paper reviews the new IEC surge protection standards and discuss how to achieve coordination of surge protective devices in accordance with IEC 61312 principles.
Protection of Telecom Sites in Countries with Unstable AC Mains
How to effectively deal with mains voltages that fluctuate beyond the IEC assumed standard of a 184 to 264 V input range, which is seen in developing countries.
Designing for Surge Immunity in International Markets that Face Hostile Environments
Many parts of the world – besides North America and parts of Western Europe – have hostile electrical environments. Systems integrators in telecommunications and other industries that export to these markets need to design equipment that will operate in those environments. This paper discusses factors that may necessitate enhanced surge immunity.