ABB Transformers, 2016 A Quick Guide Total Cost of ... · TCO Tool / A Quick Guide Pre-word 2 TCO...

A Quick GuideTotal Cost of Ownership calculator tool (ver. 2.0)

ABB Transformers, 2016

© ABB Group February 6, 2015 | Slide 2

TCO Tool 2.0 / A Quick Guide

TCO Tool / A Quick GuidePre-word 1

Background of TCO and TCO tool

The use of Total Cost of Ownership –method (also known as Total Ownership Cost –method) allows manufacturers to tailor the design to the unique economic situation of each transformer user, and allows the user to evaluate multiple designs in order to find out the optimal solution for his need

The easy-to-use ABB Transformer TCO Tool supports customers to determine, based on their own situation and future scenario, the right loss capitalisation values to be used in their inquiry to be passed to the manufacturers

The tool also helps in comparing different alternative transformer offers, calculates the monetary savings and evaluates the environmental impact and therefore supports the related decision making and increases awereness about the impact of the choice

Version 2.0 supports in addition to English language also Chinese, German, French and Spanish languages


TCO Tool / A Quick GuidePre-word 2

TCO tool is an universal easy-to-use tool for

Determining the transformer loss capitalization values (”A” and ”B” factors)

Comparing transformers with different first cost and loss values from the following aspects

Total cost of ownership with payback time on marginal cost

Consumption of energy

CO2 emission impact (in kg of CO2) with analogue to the number of trees needed to compensate the extra emissions caused by the transformer with lower efficiency

Calculation formulas are based on IEC 60076-20 (current draft) on applicable parts (the results are fully applicable with ”IEEE transformers” as well)


TCO Tool / A Quick GuideSummary of the main new functionalities with ver. 2.0

TCO tool 2.0 – main highlights and new functionalities

User registration (optional)

Possibility to define and save scenarios / comparison cases under username and to pull them out later (requires user registration)

Possibility to choose loss levels of a transformer based on the EN 50588-1 standard loss classes (when applicable)

Indication of compliance with European transformer efficiency regulation. Indication of minimum required efficiency of U.S. DOE regulated transformers (when applicable)

Considerably improved reporting. Creation of a pdf-report with enhanced graphics containing the key results of the comparison. Possibility to send the report directly from to tool to any e-mail address (requires user registration)

Direct continuation of the support of multiple languages (EN, CN, DE, ES, FR)


TCO Tool / A Quick GuideUser registration (optional)

New user registration functionality

User registration / creating a user account is fully optional

Registering as a user (with an e-mail address and a password) and logging in gives the user a possibility to save his cases/scenarios under his account and upload them at the later stage

Creating a pdf report containing the results is possible only if the user is logged in

It is possible to use the tool (with limited functionality) without logging in even if the user has previously registered


TCO Tool / A Quick GuideUser registration (optional) cont.

User registration / possibility to save and load scenarios/cases and to create reports

For the users logged in “Load scenario” button is visible at the upper corner of the user interface and gives access to his previously saved scenarios/cases

Saving of the scenarios/cases is done with buttons at the “comparison results” section


For the users logged also the send report –button is visible and functional. A pdf-report created based on the case is created by the tool and sent to the e-mail address defined by the user. The address can be also the address of the user.

TCO Tool / A Quick GuideInterface / inputs 1

i-buttons for help




i-buttons for help

TCO Tool / A Quick GuideInterface / comparison at the user interface


Peak efficiency index (IEC) is the highest efficiency that the transformer can reach at an optima loading point. It is calculated based on the IEC definition of efficiency.

Total cost of ownership is the sum of the initial purchase cost and the net present value of the cost of losses during the lifetime. In this calculation, differences in other lifecycle cost components such as installation, maintenance, possible out-time and decommission costs are not included.

Total lifetime savings during the lifetime of the transformer in selected currency when comparing the “Lowest total cost” and the transformer x.

Payback time in yearsfor the marginal investment on the higher efficiency when comparing the “Lowest total cost” and the transformer x. Simple payback calculation method.

Energy savings per year and total – The amount of energy saved when selecting the “Lowest total cost” instead of transformer x.

CO2 emission reduction per year –The amount of CO2 emission avoided in tons when selecting the “Lowest total cost” instead of transformer x. Calculated using the global average CO2 emission of 489 g per kWh generated.

CO2 absorption capability of trees –The number of trees needed to offset the higher CO2 emissions caused by a transformer with lower efficiency based on the average annual absorption capability of 22 kg of CO2 by a single tree.

TCO Tool / A Quick GuideTCO Tool / report (example, with imaginary values)


TCO Tool / A Quick GuideNotes and remarks

Dual voltage transformers

The concessions granted for ≤ 36kV transformers with dual voltage windings (as per the EN-standard) are excluded from the tool. Therefore, the indication on the compliancy with the European regulation may be incorrect for those transformer units (may indicate incompliancy even if the unit was compliant).

Cooling losses

Cooling losses of a transformer equal the power consumption of the cooling equipment of the transformer. In case of cooling with natural oil and air flow (ONAN), the cooling losses are zero due to the fact that no additional power for pumps or fans is needed

With transformers with forced oil flow (OFAF, ODAF or OFWF) the pumps for oil are usually energised at no load condition of the unit. Therefore, for a typical case the cooling losses at no load ( ) for those transformers equal the power consumption of the oil pumps


TCO Tool / A Quick GuideGeneral disclaimer

Disclaimer

Any indication given by this web tool concerning compliance of a product with energy performance regulation is based on our best knowledge and interpretation. ABB does not assume any liability whatsoever for the accuracy of this indication.

The customer shall make any investment decision independently and solely at its own risk.

ABB provides only transformers compliant with the prevailing laws and regulations.


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