July 29th, 2010 
Blake
Comparison based on transformer and transformerless uninterruptible power supply
Choose from power supplies based on raw or continuous processor may not be a simple "either / or decision", especially above 10 kVA. Both technologies have their place in the current protection settings energy, but the main differences between them are: physical size, efficiency, output noise and harmonic distortion levels of entry they generate.
Both designs uninterruptible power supply to produce a well regulated uninterruptible power supply, but differ in how that generate the voltage required by their investors and output stages.
Transformer-based Power Systems Backup: until the early 1990s, the unique design of uninterruptible power supply line was based processor. Today, the design follows be available, but generally in larger sizes for eight UPS 800 kVA. The most common applications of this are large industrial complexes.
This type UPS has an inverter output transformer robust insulation, which makes it more suitable for the type of application where there is a risk of electrical noise, spikes, transient, and potentially, a high degree of short-circuit currents.
The inverter generates an alternating current power supply of DC that is fed to a processor running. The primary function of the transformer is to increase the inverter AC voltage to that required by the load. Processors also protects the investor against load disturbances, while also providing galvanic isolation (a method of isolation of input and output).
Investor Modern designs use IGBTs (insulated gate bipolar transistors) instead of more traditional switching components (such as power transistors and thyristors). IGBTs combine the power capacity of fast action and high bipolar transistor with the voltage control characteristics of a MOSFET gate to form a device versatile, high switching frequency. This in turn has led to more powerful, efficient and reliable investors.
Transformer-based UPS also supplied with a dual input option as standard, which can be selected in the installation by simply removing one of its joint connector input terminal. This allows you to be fed from two sources of AC power separately which adds resilience. A transformer can be installed UPS with dual input capability, with supplies from the same source, but this is usually a choice of factory-fit.
Transformerless uninterruptible Power Systems
UPS Transformer is a new design, commonly available from 700VA to 120kVA. The main purpose of the introduction of units without processor was to reduce the overall size and weight as a physical uninterruptible power supply best suited for smaller facilities and / or room computer / office type environments where space may be limited. It also generates much less noise and heat transformer based his cousin and has much lower levels of input harmonic distortion that is compatible with the environments where electronic equipment (like computers) may be more sensitive to this type of distortion.
Instead of the transformer, a transformer, UPS uses a gradual process of voltage conversion. The first stage combines a rectifier and boost converter to generate a DC power supply for the investor. An uncontrolled phase bridge rectifier converts alternating current supply in a DC voltage. This is passed through a point booster circuit in mid-step voltage to 700 general 800Vdc a battery charger and inverter fed. In the second stage, the investor has the rocket-converter supply and revert back to an AC voltage to supply the load.
An added benefit of this method is that the rectifier can operate from either a three or supply of inputs in a single phase. This can be configured the installation of up to 20 kVA. A control system ensures a stable, a regulator of DC voltage is supplied to the investor at all times and the investor can operate independently of the UPS output load variations or fluctuations in the feed stream or alteration.
The choice between the transformer or transformer-based uninterruptible power supply
In many applications the choice between the two can be clear. This is where the two chains overlap in terms of power, that the decision is more complicated. It should be then given to: the initial purchase cost, physical size, operating costs, the installation environment and in particular, levels of input harmonic distortion generated. Both designs can operate in parallel to achieve higher levels of availability and resilience.
In the last decade, the gap between these two technologies of energy supply UPS manufacturers has reduced the common techniques have been applied research and development efforts of both designs. The driving force behind this has been the cost and size, along with demands for improved operational efficiency and reduce harmonic generation. In terms of online performance, both designs provide the same level of performance and systems are classified as VFI (voltage and frequency independent – in accordance with EN / IEC 62040-3). Its main differences are its effects on upstream supplies and the operating environment.
Transformer UPS are generally recognized as more efficient and power factor greater than the equivalent transformer-based design so operating costs can be reduced.
Below 10 kva transformer, UPS design dominates the market Online uninterrupted power supply and has become the standard in data center environments because they offer a compact footprint, increased operational efficiency and producing less noise. However, the strengths of the transformer-based design come into play in the industrial environment.
Sparky’s CB Shack Modified Galaxy DX959 Dual MOSFET / TopGun CP1/MD1
|
|
2-Channel illumiNITE? MOSFET Amplifiers *Class AB output design *High/low level inputs *Variable high/low pass crossovers *70 Watts RMS x 2 (4 ohms) *30 Watts RMS x 2 (2 ohms) *200 Watts RMS x 1 (4 ohms) *Frequency response: 20Hz – 20kHz *IllumiNITE circuit outputs *XIA-2340: 13″ W x 4 1/4″ H x 14 1/2″ D *XIA-2460: 16 3/16″ W x 4″ H x 13″ D… |
|
|
Dual 1-Channel 600 watt MOSFET Amplifier $90.18 Extruded aluminum heatsinkSide mounted controlsVariable input controlSelectable high and low pass crossoversReverse polarity protection15″W x 11″H x 4″D… |
|
|
Pyle Full Amplifier/Subwoofer/Installation Package for Car/Truck/SUV — PLA2200 2-Channel 1400w Bridgeable Mosfet Amplifier + PLHB10 Dual 10 800W Hatchback Speaker Cabinet + PLAM14 20 Ft. 8 Gauge 1000w Amplifier Hookup For Battery Head Unit and Speakers Installation Kit $139.99 PLA2200 Dimension: 10.63″ H x 1.42″ W x 8.75″ L.. PLHB10 Dimensions: 14.25″H x 32.5″W x 14.25″D .. PLAM14: 20ft. 8 Gauge Red Power Wire, 4ft. 8 Gauge Black Ground Wire, 20ft. 16 Gauge Blue Remote Turn-On, 20ft. 12 Gauge Stereo Speaker Wire , 20ft. Stereo RCA Audio Cable (Male to Male), 6ft. Black Split Loom Cable Conduit, AGU Type 60A Gold Plated Fuse, In-Line Water Resistant Fuse Holder, 2 Ring T… |
|
|
Pyramid Top Value Amplifier/Speaker package for the Car/Truck/SUV — 400w 2-Channel MOSFET Amplifier + Dual 12-inch 360w 4-Way Stereo Hatchback Speaker System + 1000w 20 ft. Amplifier Installation Wiring Kit $99.99 The newest Pyramid Audio package is a combination of the highest quality, world class Audio products. When installed, this system will generate the most amazing sound ever. Perfect for the music lover with the Car or Boat…. |
|
|
Pyramid Deluxe Amplifier/Speaker package for the Car/Truck/SUV — PB717X 1000w 2 Channel Bridgeable MOSFET Amplifier + BNPS102 Dual 10-inch 1000w Bandpass Speaker System with Neon Accent Lighting + 1000w 20 ft. Amplifier Installation Wiring Kit $249.99 The newest Pyramid Deluxe Audio package is a combination of the highest quality, world class Audio products. When installed, this system will generate the most amazing sound ever. Perfect for the music lover with the Car or Boat…. |
|
|
Pyle Complete Car Audio System Kit for Car/truck/vehicle, AM/FM/MPX Radio Mp3 Player — 1000w 4 Channel Mosfet Amplifier — Dual 10 800w Subwoofers/enclosure — Pair of 6.5 360w 3 Way Speakers — Pair of 6×9 400w 4 Way Speakers — 20ft. Amplifier Hookup & Full Installation Kit $479.99 Complete audio package from A to Z, includes the best of the Pyle world class line of products. The Radio/MP3 player, the amplifier, the speakers, the Bandpass system, and the installation parts, all will combine to create the most amazing sound…. |
|
|
JVC KD-PDR80 In-dash Car Stereo (Refurbished) $107.99 Listen to your iPod music on board, in full-speed digital audio transfer via USB connection and charge your iPod at the same time. The MOSFET power amp and TI/Burr-Brown 24-bit DAC creates crisp sound while dual color lighting offers a display choice. |
Posted in 
Tags: 
