input isolation transformer

8/12/2019 input isolation transformer

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Uninterruptible Power Solutions

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SWITCH ON AND SAVEWITH OUR ECO UPS RANGEMEETING TODAYS NEED FOR EFFICIENT ENERGY

B8000 / B9000: 10kVA - 300kVA

B9600: 400kVA 800kVA NOW

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The CompanyBorri SpA were founded in 1932 and over the decades have gained invaluable experience in maximising efficient power from their

wide range of UPS (Uninterruptible Power Supplies) and converter products. Borri are one of just a handful of companies able to

manufacture high efficiency Solar Inverters up to 500kVA. It is this day-to-day practical design and production experience that

helps Borri produce highly efficient three phase UPS for both industrial and IT applications.

For good reason the international community has become ECO conscious. From domestic white goods to heavy industrialapplications the squeeze is on to maximise every last watt of energy. It is this new reality that has driven Borri to lead the way

in the development of ECO UPS technology. Borri are the only company in the world to manufacture three phase UPS from

10kVA to 800kVA with both IGBT (Insulated Gate Bipolar Transistors) rectifiers and inverters. Borris unique efficient double

conversion technology ensures a clean, uninterruptible source of power able to protect the most critical of loads. With three

factories in Italy and a UK-based sales and distribution centre, supported by worldwide satellite offices, Borri are well placed to

offer customers not just efficient products, but also an efficient service.

Why an ECO UPS?In the post credit crunch era, managers may be focused on rebuilding their companies, regaining market share and of course

increasing margins. The efficient use of energy could be deemed as less urgent and be set aside until the financial climate hasfurther improved. But, for medium to large organisations, any such delays can have profound effects on the balance sheet! The

purpose of this brochure is to highlight that even

a small saving in electrical usage (see graph)

can generate substantial financial benefits;

these very real savings are quickly reflected by

enhanced profitability. In fact, if a company

currently has an inefficient UPS the cost savings

of replacing it with a high efficiency ECO UPS

typically can be recouped within two years.

A benefit of incorporating IGBT switching is

that input THD (Total Harmonic Distortion)

is less than 3%. This falls well inside proposed

European legislation, thus there being no risk

of a financial penalty. The combined features of

the Borri ECO UPS result in low heat, low

C02, low footprint and, most important of all,

low fuel bills!

2|BORRI|MEETING TODAYS ENERGY CHALLENGE

Contents...Page 2 The Company

Why an ECO UPS?

Page 3 ECO UPS energy savings

The Financial Incentives

Page 4 Benefits of low THD

Low input harmonic distortion

Page 5 ECO UPS benefits of Stand-by

Generator applications

Page 6 Efficiency guide for transformer

and transformerless UPS

>Transformer Benefits

> EMF Protection

> DC Protection

Page 7 ECO Battery issues

ECO UPS power factor

Page 8 ECO UPS Range

Operating Costs

Per Year

Operating Costs

Over a 5 Year Period

Saving

s

()

40,000

35,000

30,000

25,000

20,000

15,000

10,000

5,000

0

Borri 95% Efficient Traditional UPS 88% Efficient

Cost saving of Borri over less efficient UPSBased on 100kVA at 0.10/0.11 per kw/h

Note: Savings are cumulative and take into account reduced air conditioning costs


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High Efficiency Reduces Total Cost of Ownership

Higher efficiency = More output power = Reduced power losses = Lower electricity costs

ECO UPS Reduces Cost of Ownership...

40kVA 100kVA 200kVA 600kVA

UPS Size

Saving

s()

10,000

0

2% Efficiency Difference



20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

100,000

110,000

120,000

130,000

140,000

150,000

160,000

170,000

180,000

190,000

200,000

Operating cost savings for a small UPS Efficiency

Difference (taken over an 3 year period)

Cumulative savings with typical utility charges of 0.10/0.11 per kWh

It is estimated that over one third of direct and indirect energy ( air conditioning units, etc) used

to power a UPS is wasted because of low efficiency, poor load arrangements and unnecessary

equipment being attached.

A double conversion ECO UPS, when compared to traditional six and twelve pulse machines,

offers a typical efficiency advantage of more than 10%. Further, the ECO UPS remains efficient at low loads: with

many alternative UPS topologies the efficiency drops in proportion to the load; ie. low load = low efficiency =

higher running costs.

Below, we have presented two graphs; these clearly demonstrate the substantial financial benefits of using ECO-

friendly power products over three and eight years respectively. An ECO 100kVA UPS over a three year term with

just a 6% efficiency advantage can save the user approximately 32,000; the same machine over eight years cansave a staggering 90,000. Such economies mean the green choice is so much easier to make.

Actual savings may be dependent upon the accuracy and type of utility meter used and previously used.

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The Financial Incentives

Energy Technology List

Borri are proud to announce the ECO-UPS range from 250kVA

6.4MVA is now listed on the Energy Technology List (ETL), part

of the Governments Enhanced Capital Allowance (ECA) Scheme.The ECO-UPS range was independently verified in line with the rigorous selection

criteria and was officially listed on the ETL as of 1st February 2011.

The ECA scheme provides a tax incentive for businesses wanting to invest in

technologies which meet published energy saving criteria. The purchase of a Borri

ECO-UPS System entitles the end user to claim 100% first-year capital

allowances for the investment against taxable profits of the period of investment

(including associated delivery and installation costs) Thats a potential saving

of 27% of the capital expenditure in year one!

Further details can be found at www.eca.gov.uk/etl

Carbon Trust Loan

Borri are a registered supplier with the Carbon Trust, by investing

in an ECO-UPS you could fund the purchase with an Interest Free

Efficiency Loan, repaying the loan over the same period as the

savings are realised. Loans of between 3,000 and 100,000 are

available and can be repaid over a period of up to 4 years.

Borri would be pleased to assist clients in their application and provide advice

and guidance.

Further details can be found at www.carbontrust.co.uk

UPS Scrappage Scheme

To further demonstrate commitment to increase power efficiency, Borri have

launched a UPS Scrappage Scheme and will pay a minimum of 1,000 to end

users if they replace an existing UPS System with an ECO-UPS System.

To claim your scrappage allowance speak with one of our Sales Team.

Our terms and conditions can be found at:

www.borri.co.uk/news/borri-scrappage-scheme

MEETING TODAYS ENERGY CHALLENGE|BORRI|3


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Low Input Harmonic Distortion(THDi)

Borri are the only company in the world offering

IGBT technology on all their three phase ECO UPS-

right up to 800kVA

A Borri UPS reflects less than 3% distortion back to the mains. This lowreflected distortion results in electronic equipment upstream from the

UPS being much less susceptible to interference (ideal for hospitals).

Another important consideration is that most European countries are

looking at imposing penalties on companies that excessively pollute the

electrical grid. A Borri UPS falls well inside the proposed distortion levels

that would be subject to a fine.

IGBT rectifier technology saves unnecessary oversizing of auxiliary

generator sets, infrastructure cabling and circuit breakers.

Manufacturers with high input THD machines may offer a partial

solution by means of a twelve pulse rectifier. This old technologyrequires additional input filters and transformers to try to match

Borris performance, This, in turn, adds a substantial price and size, and

a loss of efficiency.

Note: By adding extra transformers and chokes to create a twelve pulse

input stage, efficiency will be decreased and the resultant UPS will still

not meet the overall performance of a Borri ECO product.

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High Power Factor low THDReduces Installation Costs

All Borri ECO UPS benefit from a high input

power factor (.99pf) and low reflected

harmonics (THD


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With Borri ECO features you would only requirea 120kVA generator this is 52% smaller andoffers profound ecological and financial benefits.

ECO Benefits to Generator Applications

Stand-by Generator

As stated earlier, by using an ECO UPS smaller cables and switchgear can be used. The same

principle is true when using a stand-by diesel generator which, unlike the mains, is not infinite

in power; thus energy must be extracted in the most efficient way possible. Borri ECO UPS

generates less than 3% total harmonic distortion. This feature, married to a high input power

factor (.99pf) has many benefits for both the generator and the environment.

Smaller Generator Needed with ECO UPS

Because reflected distortion to the generator is so low a substantially smaller engine and

alternator can be used. Typically, when calculating the size of a generator to run with a non ECO

UPS, a factor of 2.5 would be

applied. For example, a

standard 100kVA UPS

would require a

250kVA generator.

The same 100kVA

requirement but with

Borri ECO features

would only require a

120kVA set; a factor of

1.2. This is 52% smaller

and offers profound

ecological and

financial benefits.

Longer Generator Life with ECO UPS

By using a Borri ECO UPS the life of the generator can be extended. A conventional UPS may

generate 25% to 35% reflected harmonics. This distortion results in the generator alternatorwindings having to run hotter than necessary. With a Borri ECO UPS this problem will never

occur. A further complication of bad harmonics is that the resulting mains distortion may lead

to the generator management system (GMS) misinterpreting what is actually happening. This

often causes hunting (the GMS switches back and forth between mains and generator resulting in

small breaks) and such a scenario is a real threat to your load.

Ancillary Generator Benefits with ECO UPS

The combination of high efficiency, high power factor and low THD (Total Harmonic Distortion)

allows for smaller cables, swi tchgear and fuel storage, another less obvious advantage is that

the generator will have a smaller footprint, thus any concrete plinth could be reduced in size,

as could any related security fencing again real benefits to the local environment.

Friendly Power Factor with ECO UPS

Another energy-friendly characteristic of the Borri ECO UPS is that it draws its power at almost

unity power factor (.99pf); ie, the current and voltage are in sync. Note: The larger the lag (power

factor) between current and voltage the greater the waste of energy. Many conventional UPS

draw power at a .8pf and are thus 20% less efficient. A poor power factor can lead to many

disadvantages in generator applications; from higher fuel costs to shorter maintenance intervals.


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Transformerless Technology: The design philosophy behind transformerless technology is exclusively to reduce cost. Like most things in life, You dont get

something for nothing. By removing the t ransformer you lose some electrical isolation and may expose your load to a wider-range of problems.

A Transformerless UPS with an IGBT rectifier is more efficient than a conventional SCR six or twelve pulse machine. However, the Borri ECO B9000 & ECOB9600 UPS series incorporates both an IGBT rectifier and inverter making its efficiency equal to, or even better than, most transformerless units. All this is

achieved whilst still incorporating the all-important protection of a transformer!

Most UPS installations, for practical purposes of flexibility run at between 55% to 80% of capacity. The efficiency chart below shows that (in this power-

band) there is no particular efficiency advantage from either transformerless or transformer technology; both fare well. Only when at 100% load does a

transformerless machine achieve a small gain but this is offset by the efficiency of the Borri system at low load which, in the real world, is where it matters.

To achieve a transformerless topology, more high power switching devices are required on the output, ironically its these additional switching devices that

may reduce efficiency.

Isolation Transformer is Standard on ECO B9000 & ECO B9600 60kVA - 800kVA: When designing the B9000 and B9600 series, Borri took the decision,

at the point of conception, to include an output transformer, but why? Because the benefits and additional protection were considered to be great and allowed

for a wider range of applications.

EMF Protection: A threat to any UPS is back EMF (back electromagnetic force). This energy is created by switching on and off machines connected to the

output. The Borri transformer will dissipate this energy, protecting the UPS and in consequence your load. Back EMF and high energy spikes are also generated

by magnetic brakes, often found on high speed drives or robotic applications and larger printers. With most transformerless UPS this rogue energy is passed

directly across the output stage and is dissipated via an array of semi conductor devices. The life of these devices is finite, the length depending on usage,

whilst the life of a transformer is almost infinite.

DC Protection: Having an output transformer offers 100% protection against DC (battery/rectifier voltage) reaching the load in the event of a major

failure. Should DC reach the load, catastrophic damage is certain.

Transformerless UPS cannot protect against a DC threat!

Note to Buyer: If your computer room is subjected to a substantial

lighting strike, or similar, a transformer-based UPS guarantees no DC toyour load.

Efficient Scalability: Borris parallel operation has the functionality for

both redundancy and capacity increase. Up to six 800kVA UPS can be

combined together to give an extraordinary 4.8MVA of efficient power

at just 3% THD. Further, Borris DSP digital control protocol acts on both

active and reactive power, monitoring each output phase. This allows

efficient load sharing between all modules connected in parallel.

KINDTO

THEENVIRONMENTEfficiency Advantages/Disadvantages

Comparing transformer with transformerless

Efficiency %

Load %

95

100

90

85

80

75

70

0 20 30 40 50 60 70 80 90 100

Borri On-Line

IGBT with

Output

Transformer

Transformerless UPS

Actual savings may be dependent upon the accuracy and type of utility meter used and previously used.


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One of the biggest expenses of UPS ownership is the replacement and maintenance of the batteries.

The B8000, B9000 and B9600 feature an Accurate Battery Management (ABM) program whereby, following the UI characteristic curve, the charger

starts at a constant current, automatically selected by the type and quantity of the battery used.

The ABM system eliminates detrimental excess charging and reduces residual current ripple, one of the main causes of premature battery wear. The ABM

program also protects against deep discharge cycles which can and do damage individual cells.

A single battery can cost 135.00 and its not uncommon for a medium size UPS to contain 120 individual blocks. Protecting your batteries is protecting

your investment.

The Borri B9000 and B9600 ECO series incorporate automatic temperature compensation which regulates the battery charge voltage under hot and cold

conditions thereby increasing battery life. By extending the life of the batteries, the environment is benefited.

Note: Batteries contain heavy duty plastic, acid, lead and are expensive to recycle. The longer the life can be extended the fewer need to be produced and

subsequently recycled.

High Rated Output Power helps reduce greenhouse gasesBorris three phase UPS are designed to accommodate high output power factors, This capability means that no overrating of the UPS is required which,

in turn, results in a smaller footprint, smaller cables and less heat generation. For more information on leading and lagging currents see graph.

As an example of everyday machines that have a high current p.f, we only have to look at products such as Blade Servers. Borri comfortably deal with the

sophisticated power demands of these cutting-edge computers, all at a temperature of 250C.

If you would like to know more about specifying and designing your own

ECO-friendly computer room or data centre please feel free to contact

our technical sales team on UK Free Phone 0800 136993. We will be

pleased to share our 75 years experience with you.

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Intelligent Battery Charging

For Improved Battery Life and for a cleaner environment

-1 -0.8 -0.6 -0.2 -0.2 0 0.2 0.4 0.6 0.8 1

kVar

kW

0.25

0.50

0.75

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INDUCTIVECAPACITIVE

100% kW

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100%kV

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p.f. 0.8p.f. 0.7

p.f. 0.6

p.f. 0.9 p.f. 1 p.f. 0.9 p.f. 0.8

By extending the life of batteries

the need to replace is reduced

thus the environment benefits.


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BORRI S.p.AVia 8 Marzo, 2 52010 Bibbiena (Arezzo) Italy

Tel: +39 0575 5351 Fax: +39 0575 561438 Email: [email protected] Web: www.borri.it

Uninterruptible Power Solutions

Information presented in this brochure cannot be used to place any contractual obligations on the Borri Group, efficiency and savings figures contained in this brochure are indicative and can vary from

country to country, brand to brand and from voltage to voltage. Information contained in this brochure cannot be deemed as definitive and can change without notice.

B8000 / B9000B9600 UPS suitable for:

Data Centres

Networking

Communication Rooms

Banking

Telecommunications

Healthcare Systems

Industrial Automation

Manufacturing Machinery

Building Automation

Typical industries we serve include:

COMMERCIAL: Information Technology,

Telecommunications, Internet Infrastructures, Banking,

Healthcare.

INDUSTRIAL: Utilities, Power Plants, Oil and Gas and

Petrochemical, Railways, Marine, Avionic.

Products available from the Group include:

UPS Systems / Solar Inverters up to 500kVAGenerators / AC and DC Voltage Stabilizers /

Rectifiers-Battery Chargers / Static Inverters

Static Transfer Switches / Frequency Converters /

Switchgear / Batteries.

Our team of experts from Research and Design, Sales

Support, Procurement, Quality Assurance, Engineering,

Manufacturing, Testing, Expediting and After-Sales and

Service will help you to choose the best solution for

your applications.

The B8000 ECO series is a transformerless UPS with IGBT input and output technology. The

combination of Isolated Gate Bipolar Transistors (IGBT) and digital processing (DSP) enables the ECO

B8000 series to have an almost negligible effect on the mains supply, reflecting less than 3% harmonic

distortion.

When running in normal On-Line mode the B8000 ECO offers an AC/AC efficiency of 95% increasing

to 98% in DC to AC mode. Achieving a high DC to AC efficiency means that, under mains failconditions, the batteries and your network run for longer. Should green mode be selected. AC to AC

efficiency increases to approximately 98%.

The B9000 ECO is the most efficient transformer based uninterruptible power supply available on the

UPS market. The efficiency of the B9000 is typically 10% to 15% higher than a conventional six or

twelve pulse UPS, providing massive efficiency and cost savings for the user. See graphs on page 3.

The B9000 ECO incorporates an IGBT rectifier reflecting less than 3% harmonic distortion back to the

mains and, as a consequence, has no detrimental effect on other equipment sharing the same supply.

A further benefit of IGBT technology is that any auxiliary generator can be downsized by as much as

50%. See page 5.

The B9600 ECO: Like the B9000 the B9600 includes an isolation transformer, IGBT rectifier and

IGBT inverter. The combination of these three c rucial technical components makes the B9600 ECO

UPS the only machine available in the world able to reach 800kVA (single module) with an efficiency

of 95% and a reflected THD of

Documents

input isolation transformer