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Jan 17 |
Eaton UPS software and connectivity news - Consolidation of network cards
Posted by Jason Senior Sales on 17 January 2012 05:25 AM
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Eaton UPS product Update - Eaton has just announed new connectivity cards for their UPS solutions will be shipping from February 2012. Whats the difference in the cards you may ask?Network Card-MS
Please see the table below for confirmation of old and new part numbers.
Our e-store and web pages will be updated over the next 5working days, however if you have any queries please contact us on 0845 519 3638 or email support@criticalpowersupplies.co.uk Note: National roll out projects will not be affected by this product update. Yours sincerely. Support @ Critical Power Supplies. Read more » | ||||||||||||||||||||||||||||||||
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Jan 7 |
Match Battery Amp-Hour Capacity to Your Application
Posted by Jason Senior Sales on 07 January 2012 09:33 PM
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After talking to a customer in Sengal, West Africa today (7/01/2012), we thought we would post the following to help all our customers calculate their load and battery solution correctly when considering Power Inverter applications: Selecting a battery or system of batteries that will provide your Inverter/Charger with proper DC voltage and an adequate amp-hour capacity to power your application is straight forward. Even though Tripp Lite Inverter/Chargers are highly-efficient at DC-to-AC inversion, their rated output capacities are limited by the total amp-hour capacity of connected batteries and the support of your vehicle’s alternator if the engine is kept running. • STEP 1: Determine Total Wattage Required Note: Your Inverter/Charger will operate at higher efficiencies at about 75% - 80% of nameplate rating. • STEP 2: Determine DC Battery Amps Required 540 watts ÷ 12V = 45 DC Amps • STEP 3: Estimate Battery Amp-Hours Required (for operation unsupported by the alternator) 45 DC Amps × 5 Hrs. Runtime NOTE! Battery amp-hour ratings are usually given for a 20-hour discharge rate. Actual amp-hour capacities are less when batteries are discharged at faster rates. For example, batteries discharged in 55 minutes provide only 50% of their listed amp-hour ratings, while batteries discharged in 9 minutes provide as little as 30% of their amp-hour ratings. • STEP 4: Estimate Battery Recharge Required, Given Your Application 270 Amp-Hours ÷ 55 Amps NOTE! For Tripp Lite Inverter/Chargers providing 1250 watts or less of continuous AC power, a full-size battery will normally allow sufficient power for many applications before recharging is necessary. For mobile applications, if a single battery is continuously fed by an alternator at high idle or faster, then recharging from utility or generator power may not be necessary. For Tripp Lite Inverter/Chargers over 1250 watts used in mobile applications, Tripp Lite recommends you use at least two batteries, if possible fed by a heavy-duty alternator anytime the vehicle is running. Tripp Lite Inverter/Chargers will provide adequate power for ordinary usage within limited times without the assistance of utility or generator power. However, when operating extremely heavy electrical loads at their peak in the absence of utility power, you may wish to “assist your batteries” by running an auxiliary generator or vehicle engine, and doing so at faster than normal idling.
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Nov 27 |
Rackmount Source Transfer Switch For Increased Uptime
Posted by Jason Senior Sales on 27 November 2011 06:09 PM
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Everyday questions from IT Managers:
Well Critical Power Supplies has the answers in the form of the Eaton 16amp STS and the Riello MultiSwitch MNS 1. Eaton STS 16 IEC - 1U High The Eaton STS 16amp IEC is an affordable solution for customers willing to add power redundancy to high voltage networking equipment like switches and routers. This source transfer switch will power them from 2 different sources (typically the mains power and a UPS, or 2 UPSs). Should one power source fail, the alternate one will switch over with no interruption to the connected equipment. Eaton STS can be connected to multiple devices at the same time while saving the cost of expensive redundant power supplies.
2. Riello Multiswitch - Two Versions SNMP and RS232 Communication Options MultiSwitch STS provides electrical distribution and remote management for up to eight network users, powered from either one or two direct mains supplies or UPS or a combination of both. MultiSwitch STS can connect each user (up to eight, each with a maximum power demand not greater than 3A), to either of the two power sources (A and B). Load demand is shown on the LCD. The Riello MultiSwitch-S Plus STS Source Transfer Switch is a serial communications enabled version of the standard Riello MultiSwitch. MultiSwitch STS provides electrical distribution and remote management for up to eight network users, powered from either one or two direct mains supplies or UPS or a combination of both. MultiSwitch STS can connect each user (up to eight, each with a maximum power demand not greater than 3A), to either of the two power sources (A and B). Load demand is shown on the LCD. If you would like more information or would like an evaluation unit to try please do not hesitate to contact Sales on 0845 519 3638 or email Sales at sales@criticalpowersupplies.co.uk Read more » | ||||||||||||||||||||||||||||||||
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Nov 20 |
Device Protection is a must and our Secure-Tec Range is the answer.
Posted by Jason Senior Sales on 20 November 2011 05:11 PM
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Device protectionDamage to electronics very often results from overloading or electro-static power surges. These are in fact far and away the most common source of such damage, more common than user error or negligence.Overload refers to any current that briefly rises above the threshold value of the network's current. Overloads are not just a problem in the 230 V network, but also for devices connected to telephone and antenna wiring. Overloading first attacks sensitive system components. The tiny, electronic circuits on chips, motherboards, network cards, etc cannot cope with additional power or current surges. Unless effectively protected, overloading destroy the sensitive electronic elements in the circuits of connected devices. Overloads can originated from things like switching pulses from strong motors, welding devices, or other large electric devices. Even more dangerous are the very high voltage surges set off by indirect lightning strikes. These spell certain doom for unprotected electric devices. High intensity current surges can also make their way into the power mains through indirect lighting strikes or can travel over telephone or antenna wiring into computers, video, home theatre or hifi devices, destroying any device without proper protection. Protection from overvoltages and electro-magnetic current peaks is achieved by using device protection products between the power source (plug) and the device. Protective elements like voltage dependent resistors and gas diverters are important elements that arrange for dangerous overvoltages to be diverted into the ground in fractions of a second, hence preventing the destructive high voltages from reaching the protected devices Product Focus "Secure-Tec Surge Protection 15.000 A" With acoustic warning when surge protection fails.Purchase online at Critical Power Supplies Ltd E-Store Features and Benefits.
Product Table.
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Sep 5 |
Riello UPS Extends Its Energy Saving Range of Power Systems
Posted by Justin - Senior Sales on 05 September 2011 10:15 AM
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The Riello UPS Multi Sentry has long lead the field in energy efficient power protection.The Riello UPS Multi Sentry has long lead the field in energy efficient power protection. With the addition of the latest 60kVA and 80kVA modules, an even wider range of installations will be able to benefit from the energy and cost-saving potential of this industry-leading UPS system.The Riello Multi Sentry is designed to meet the specific energy demands of high-density, high-pressure environments such as data centers and telecoms networks; maximising resilience, minimizing costs and optimizing energy efficiency. In fact, the exceptional quality of the design and technology used by Riello allow the Multi Sentry UPS to operate with an industry-leading on-line efficiency, which can provide up to a 50% saving in energy usage per annum compared to a traditional UPS. Advanced technology to optimize efficiency Multi Sentry is easy to install, and with single and three-phase compatibility utilising on-line double conversion technology, it is the ideal solution for sites that have limited power capacity, generators or problems with harmonics. It has zero-impact on its upstream power supply, and also acts as filter and phase-shift protection device. The Multi Sentry range is rated as a Level 6 product on Riello’s unique Eco Energy Level Scale, achieving exceptional performance with a surprisingly small footprint of 0.4m2 – freeing up valuable floor-space. Multi Sentry also has a range of advanced battery optimisation features; extending the average working life of a battery set and reducing lifetime management costs. Luca Buscherini marketing manager of Riello UPS said: “We are pleased to be able to offer the 60-80kVA versions of the Multi Sentry, which completes our range in this series from 10-120kVA. “This extensive line of energy efficient UPS not only meets the most challenging demands of the data centre environment, but also meets the scalability requirements of this growing business sector; minimising costs and maximizing resilience” Increased communication and adaptable protection Multi Sentry also has a sophisticated range of communications options, including a front graphic display panel providing real-time measurements, operating status and alarm conditions; a variety of options for remote monitoring, extended runtime applications, temperature monitoring, electrical isolation and power distribution. Thanks to a variety of configurations, available accessories and coverage by Riello’s comprehensive service options, the complete Multi Sentry range is also one of the most flexible UPS available today. Suitable for a wide variety of applications, the Multi Sentry is one of the best UPS for the protection of high-density loads (such as blade servers) within IT and other critical environments. The Multi Sentry 60-80kVA is also featured in the latest Riello product catalogue, which covers the full range of leading edge energy-efficient Riello UPS products and services including Uninterruptible Power Supplies, Static Transfer Switches, Generators and Flywheels. Read more » | ||||||||||||||||||||||||||||||||