Copyright ©2006 - Inspired Interfaces
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Released Version 2007.2 (Build 902) - 15 August 2007
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1. New Server User and Server Bulk licensing options.
Known Issue:
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1. Harmonic Source Display options are not saved for each individual Harmonic Source.
The General display options however will be saved. The user is discouraged to use
Force Local Display for a Harmonic Source.
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Patch 1 Build 906 - 2007/11/05
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Bug Fixes:
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1. Fixed voltage initialization (flat start) on transformers with phase shift and secondary
tap changer.
2. Fixed strange behaviour on the expand chart after the introduction of the previous fix of
leaking resources.
3. Fixed strange behaviour on certain forms (Protection Device, Options, Harmonic Device, Export and
Print forms) not displaying the correct data after the introduction of the previous fix of
leaking resources.
4. Fix an access violation message under certain conditions.
New Functionality / Improvements
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1. Added an option to include the load current as part of fault current flow.
2. Added Text Annotation search to the Searching functionality.
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Patch 2 Build 910 - 2007/11/07
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Bug Fixes:
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1. Implemented Error Trapping in potential vulnerable areas.
2. Replacing some of the PM_GetSet.xls macros causing memory corruption in PowaMaster.
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Patch 3 Build 912 - 2007/11/26
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Bug Fixes:
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1. Fixed a focus error relating to the Protection Device Form.
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Patch 4 Build 913 - 2007/12/05
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Bug Fixes:
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1. Improvement on potential numerical overflow on saving files.
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Patch 5 Build 920 - 2008/10/22
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Bug Fixes:
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1. Loading of default options when selecting File New.
2. Fixed issue with opening a file with source status set disabled and resetting the bus voltage.
New Functionality / Improvements
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1. PSS/E compatibility up to version 29.
Known Issue:
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1. Using Generator Devices in large networks in stead of Source Devices (in co-generation mode)
can cause the study not to solve. It is recommended to rather use a Source Device as go-generation,
unless there is a very specific need to have fixed generating power.
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Patch 6 Build 926 - 2009/02/19
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Bug Fixes:
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1. The following Results on a Bus displaying incorrectly were fixed :
1.1 Total Bus Load,
1.2 Bus Current,
1.3 Fault Flow,
1.4 Peak Fault Flow.
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Patch 7 Build 930 - 2009/04/06
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Some users have experienced corrupt project files and although this is not a bug that can be
simulated by us or traced to something specific, it is believed to be related to a windows memory
management issue.
A workaround is built into this build to try and prevent the corruption from occuring. This is
experimental and might not solve the problem, however it will not negatively affect anything else.
Bug Fixes:
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1. Load Profiles only produced correct results on a first time calculation.
2. Saving of Load Profiles to a new file didn't work.
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Patch 8 Build 932 - 2009/08/17
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Bug Fixes: (Were only partially fixed on version 2007.2 Build 926)
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1. The following Results on a Bus displaying incorrectly were fixed :
1.1 Total Bus Load,
1.2 Bus Current,
1.3 Fault Flow,
1.4 Peak Fault Flow.
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Released Version 2007.3 (Build 946) - 15 April 2010
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Note!!!:
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1. The Project file is not backward compatible(Previous versions will not successfully open the project file!)
2. Should a specified load have a different impedance representation in Harmonic studies, such as
motor loads, this impedance value should be specified in the SUB-TRANSIENT tab of the
Fault Contribution of a device. These values will be used in the harmonic study. If no
sub-transient impedance is specified, the equivalent load impedance will be used instead.
New Functionality / Improvements
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1. Source Limits are now used to Flag the device(Red) if the Limits are exceeded.
2. Added Power Factor vs Time to the Profile and Motor Profile graphs.
3. Double Clicking on a device will open the device for editing.
4. Harmonic Source Spectrum Angles are now visible and saved with the project file.
5. Harmonic Wave Forms are plotted over two periods instead of one.
6. Impedance Plot can now be toggled between pu and ohmic impedance.
7. Skin effect is taken into account in the Hamonic study.
8. UAC Compatibility with Windows Vista, Windows 7 and Windows Server 2008
Bug Fixes:
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1. Fixed Searching Harmonic Devices using the Search Functionality.
2. If a file attribute is read only, PowaMaster will correctly display an error message.
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Patch 1 (Build 948) - 3 May 2010
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Bug Fixes:
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1. The following Results on a Bus displaying incorrectly were fixed when the "From Bus" and "To Bus"
conventions are mixed between two busses with multiple branches :
1.1 Total Bus Load,
1.2 Bus Current,
1.3 Fault Flow,
1.4 Peak Fault Flow.
2. The following Results on a Bus displaying incorrectly were fixed when used
with Fault Calculation Voltage Factor (IEC60909):
2.1 3-Ph Fault
2.2 Ph-G Fault
2.3 Ph-Ph Faults
2.4 Ph-Ph-G Faults
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