As many of you have heard, PTI has been acquired by
• Gas load estimation software
Stone & Webster Management Consultants, Inc. (MCI) effec• Restructuring and privatization services
tive August 14,1998. PTI's association with MCI represents an
• Utility generation asset sale database
historic move to add commercial and regulatory
To augment the combined skills of PTI and MCI,
capabilities to our technical competencies, a combiwe are also able to draw on S&W Engineering to
nation critical to balance the needs of an increasingprovide EPC contracting and associated disciplines.
ly competitive global energy industry.
The relationship with Stone & Webster will
MCI has approximately 120 professionals who
provide a stronger base to broaden PTI's consulting
offer a broad range of management consulting skills
services businesses and accelerate our developin electricity, gas, industrial process, telecommuniment of Innovative software and hardware solutions.
cations, and water. Their key practice areas include:
PTI will remain in Schenectady, New York, and
• Core utility concerns
S.J. Balser, President
will continue to operate as an independent company.
• General management consulting
([email protected])
We are confident that the complementary skills and
• Y2K embedded systems
geographical reach of a combined PTI and Stone &
• Project financing review services
Webster will increase our responsiveness to your needs and
• Electric wholesale and government regulation issues
provide you with an important expansion of services and prod• Energy Resource management services
ucts to address the issues of the future.
• Retail pricing for unbundled utilities services
P.P. Barker, Senior Consultant
H.w. Zaininger, Manager, Sacramento Office
[email protected]
[email protected]
Power Technologies, Inc.
Kurt Elsholz, Project Engineer
AWS Scientific, Inc.
[email protected]
Art Peterson, Senior Research Specialist
Niagara Mohawk Power Corp.
[email protected]
PTI recently completed the development of the first Power
Enhancement and Delivery System (PEDS) for Niagara Mohawk
Power Corporation 1• As its name implies, PEDS is a modular system that enhances the quality of power for utility customers and
also delivers energy into the utility system by serving as a distributed generation controller and power conditioner. The PEDS is
capable of converting power supplied by photovoltaic arrays, battery storage systems, fuel cells, or microturbines into ac power
suitable for injection into the utility grid. In the event of a utility outage, the PEDS can also support the local load by running on its
internal batteries or its local generation source. In this way, it prevents outages, voltage sags, and other power anomalies from
reaching the customer.
The PEDS prototype (see Figure 1) is housed in a weatherproof
enclosure, is rated at 125 kVA, and has been designed to operate
with 480-volt, three-phase, 50-Hz power, as is commonly found at
US commercial sites. It can be easily adapted to fit the power
requirements of any location worldwide. PEDS is a three-port
(continued on Pg. 2)
M.E.N. du Preez, Director
PTI-NET Africa (Proprietary) Ltd.
[email protected]
Deon Vrey
Pretoria Metro
R.R. Austria, Manager
Reliability Services
[email protected]
X.K. Xu, Analytical Engineer
System Planning & Operations
[email protected]
Power Technologies, Inc.
Concentration of demand for electrical power in urban centers
often results in networks which must be assessed for reliability, but
which combine features normally associated with either transmission
or distribution systems. In the example shown in Figure 1, the network
interfaces with the external system at transmission voltages, and delivers to the load centers at an intermediate voltage. (Although the 132
System I-¥-_~
_ _---,_ _ _---,-_ _ _,-_!+-I
~ h'~:~~--,-+---,~--,-t--'~'I
Substation 2
Substation 3
Substation 4
Figure 1.
(continued on Pg. 3)
basis than bulk generation, it has many advantages that can offset its
additional cost. Strategically located distributed generation extends the
capabilities of the existing T&D infrastructure by deferring the need for
new or upgraded transmission lines, substations, and distribution system equipment. It also reduces system losses and helps displace the
need to add new central station generation units to meet load growth.
Some distributed generators can be cogenerators (using waste heat
for other processes) which in many cases can create dramatic energy
savings for customers while reducing pollution and greenhouse gas
Other factors making distributed generation attractive include utility deregulation, the difficulty in obtaining permits for new bulk generation and transmission facilities, and the decreasing cost and environmental benefits of some distributed energy technologies. While these
factors make the decision to use distributed generation easier, traditional T&D support economics have not, until very recently, favored it
enough to cause a widespread move in this direction. One exception to
this is cogeneration applications above 5 MW where there has been a
fairly widespread movement among industrial facilities in that direction
during the past 10 to 20 years. But for most other applications (for
example, the PEDS size range of 50 to 500 kVA) distributed generation
is still usually not the lowest cost option. All of that is now changing
due to developments in microturbines, fuel cells, photovoltaics, and
other sources and over the next 5-10 years a rather large movement
towards distributed generation is expected.
The objective in developing PEDS was to further increase the benefits of distributed generation by combining the power quality features
of a UPS system with utility system support benefits obtainable via
distributed generation all in a package compatible with various DG
energy sources. This combination is expected to significantly increase
the economic payback of distributed generation projects, especially
under emerging deregulated utility scenarios, making many more of
them viable now, not 5-10 years from now.
(continued from Pg. 1)
device from the perspective of power flow (see Figure 2). During
normal operation, PEDS conditions the utility line voltage and feeds
the conditioned power to the connected customer via its load output port. It also simultaneously converts dc power when available
from the PV array (or other dc source) to ac and delivers it to the
Figure 1. Photograph of PEDS installed at the field site.
load output port. If the load is less than the power being produced
by the PV array (or other dc source), then the surplus is exported
to the utility system via the utility interconnection port. For power
quality applications, the system can detect a disturbance and isolate
the load from the utility system in less than 1/4 cycle, and then provide up to 5 minutes of outage ride-through capability at rated load.
The PEDS is also designed to start and control an optional auxiliary
generation device in applications where extended outage ride
through is desired.
The PEDS system began photovoltaic power production this summer
at a site located near Albany, New York. The PV site, whose construction was managed by AWS Scientific, Inc. for Niagara Mohawk Power
Corporation, has 120-kW dc of solar array that is connected to the
PEDS unit. Power output from the PEDS is then fed into a local distribution feeder at 13,200 volts (a 480 volt to 13.2 kV step up transformer
bank is used to convert the PEDS output voltage to a level suitable for
the feeder). The PEDS contains its own internal protection relay package to trip the unit off-line should a problem develop.
While distributed generation generally costs more on a $/kVA
Hi-directional Power
Flow Surp/lls Power
Conditioned, UPS
grade power
defiwred to load
Etported to Utility .
Load Output Port
Interconnection Port
(AC power)
r .... -- ....
I lntema15
}1inute Batte~
IlIWq. Control
DC Input Part : • • • ___
DC Power Source
(PV, Fuel Cell)
Figure 2. PEDS is essentially a three port device from the perspective of power flow. The optional generator could also be connected to the dc
port if the output can be filtered and converted to dc.
PEDS will be operated for 1 to 2 years at the PV site to demonstrate tile following elements:
• Distribution feeder support witll photovoltaics
• PEDS power quality and maximum power point tracking functions
• PEDS protection and utility interface functions during
upstream utility disturbances
• Efficiency and reliability of the PEDS unit
The test program involves extensive monitoring of the generated photovoltaic dc power, dc voltage levels, power consumed by
the test load, and power exported to the utility system. Recording
devices will also monitor the status of key circuit breaker positions,
controller settings, climate control system operational conditions,
and PEDS alarm signals (temperature, faults, over- or under-voltage
warnings, etc.). Power quality monitoring instruments will be used
to observe the utility input and load port output voltages to verify
power quality performance. Many momentary interruptions and
voltage sags are expected on the subject test feeder during the twoyear test period because of its considerable circuit length and exposure to a variety of possible fault conditions including lightning, tree
contact, wind, and animal-caused faults. This will provide the ideal
opportunity to test the power quality features of PEDS. As of this
writing, we are several months into the test program and the performance monitoring has shown that the unit is operating extremely
well with no unexpected difficulties or problems being encountered.
Commercialization of the PEDS concept is being pursued in
parallel with the prototype testing program. There are several tentative beta sites at many different utilities for the next generation
(continued from Pg. 1)
kV system shown here is radial, it could easily be meshed as welL) At
each load center, the 132 kV line is tapped, and voltage is stepped
down to distribution levels. The 132 kV network is designed as a
redundant pair of circuits and the taps can connect to either circuit.
The taps are really distribution substations, and are designed to those
standards, including provisions for transferring to the other circuit and
connecting backup transformers. Hence, we have a prototypical urban
subtransmission network.
How does one assess the reliability of such a system?
This was the basic question addressed in a recent study by PTI's
affiliate in Pretoria, South Africa, PTI-NET. The assessment method
contained a number of key considerations:
• Availability of the external supply
• Size and availability of local generation
• Capability to switch load to alternative circuits of the 132 kV network
• Various designs in use for the 132/11 kV substations
• Success rates and time delays for switching at the distribution
• Failure rates for circuit breakers
• Frequency and duration of outage events on the 132 kV lines
Overall, the assessment needed to quantify the impact on customers of subtransmission system unreliability, in terms of unserved
energy and cost.
To meet the assessment objective, a two-part approach was applied:
1. Identify the reliability characteristics of the various distribution
substation designs in order to model them in a meshed network power flow
2. Assess the reliability of the 132 kV system, incorporating the
substation design characteristics, with respect to probability of
forced outages, success rates for switching, and circuit current
and voltage conditions
The matter of reliability characteristics for substations was
addressed using the SUbstation Reliability Assessment (SRA) add-on
module in PTI's TPLAN software package. This package allowed
simulation of multiple contingencies due to forced outages, stuck or
misoperating breakers, and maintenance. It provided for a more
detailed model of substations than network analysis tools would allow.
An example of one type of substation evaluated is shown in Figure 2.
This Type A substation configuration is currently the most prominent in the Pretoria Metro system. The sUbstation has three load
transformers, TA, TB, and TC, and a backup transformer, TR.
Transformers TA, TR, TB, and TC are connected to Line 1 or Line 2 via
the 132 kV busbar in a manner that will balance the load between
Lines 1 and 2. Line 2 is therefore not regarded as a backup for Line 1
and vice versa.
In the case of a 132 kV line fault, the line protection relay sends an
intertrip signal that opens the remote 132 kV line breakers. Supply is
restored through remote switching of the 132 kV line or bus coupler
circuit breaker.
In the case of a transformer fault, the transformer's 132 kV and 11
kV breakers will trip and clear the fault. This also initiates a chop-over
sequence (transfer of connection to an alternate source such as 138
kV circuit or backup transformer via automatic actions) comprised of
the following: Five seconds after the breakers trip, the 11 kV bus coupler closes, restoring supply to the load via TR. The reliability of the
chop-over sequence was found to have a significant impact on the
overall reliability of substation design. A successful chop-over assures
that load curtailments will last no more than 5 seconds for single con-
Figure 3. Load bank, metering, and data acquisition equipment
are located to the left of the PEDS unit.
_ PEDS that are expected to come on line during the next year or two.
Some of these sites may include microturbines, fuel cells, or other
distributed generation technologies. Utilities interested in participating in one of these programs should contact Phil Barker at
Development Funding for PEDS was provided by Niagara Mohawk Power Corporation,
New York State Energy Research and Development Authority (NYSERDA), Utility
Photovoltaics Group (UPVG), and Power Technologies, Inc.
Thi~ model was then implemented in PTI's TPLAN package.
TPLAN IS a power-flow-based reliability-assessment program
which can simulate trip events and multiple contingencies, and can
calculate unserved energy indices. It can also reflect the variation
i~ load by approximating the load duration curve, as shown in
Figure 3.
Type A
Load Duration Curve
- - - - - - Approx
Figure 3.
Figure 2.
The procedure and analytical tools allowed a detailed assessment of r~liability in terms of customer impact costs. Specifically, it
was possible to calculate the network reliability in terms of unserved
energy under the following assumptions: that chop-over is achieved
within 5 seconds (correct automatic action), within 15 minutes (via
~CADA system), and within 40 minutes (operator action). Combin!ng the unserved energy under these assumptions with the probabilIty of the chop-over sequence produced a composite measure that
more realistically reflected customer impact of unreliability. The
measure had an additional characteristic as well: the unserved
energy could be broken down into individual customers at the 11 kV
substations. This characteristic allowed for the application of damage cost functions (cost per duration of outages specific to each
customer), and produced an effective measure of unreliability.
. Furthermore, the use of network models allowed the comparative assessment of network reinforcements and their effects on the
cost of unreliability.
tingencies. The probability of a prolonged load curtailment due to a
transformer fault is thus the net product of (a) the probability of a
single contingency event involving anyone of transformers TA, TB,
and TC, and (b) the probability of a chop-over failure.
After SRA evaluation, it was determined that for this substation configuration the frequency of load curtailments with successful chop-over is 0.0034 occurrences per year. Note that even successful chop-over, there is still a probability of load curtailment due to double contingencies and breaker failures. The frequency of load curtailment is quite small, indicating a highly reliable sUbstation design. However, if unsuccessful chop-over is
assumed, the frequency of load curtailment increases to 0.18
occurrences per year, equivalent to a substation with no backup
transformer. The actual substation reliability is between these two
frequency values, and is a direct function of the success rate of
The SRA results suggested an appropriate model for network
analysis with power flows. Basically, this model involved:
1. Explicitly representing each of the transformers, including
the backup transformer
2. Adding a trip sequence which activates the backup
transformer for outages of a load transformer
3. Applying corresponding outage statistics to each transformer
4. Applying double contingency outage statistics to failures of
any two transformers at a time
Using both SRA and TPLAN, PTI-NET quantified the unreliability of the subtransmission system for Pretoria Metro in terms of
cost of unserved energy. This included a breakdown of the costs
into unreliability of individual components - lines and sUbstations
- as well as the impact of equipment reinforcements. The analysis
consequently provided a useful guideline for bulk infrastructure
investment by relating the capital cost to the utility and the cost of
unreliability to its customers.
This and all future issues of the PTI newsletter
can be found on our home page:
analysis capabilities were further developed to meet target user needs.
When PSSNIPER development began, a new set of one-line diagram
graphic routines known as Slider had already been completed.
Meanwhile, core analysis engines were nearing completion. These
engines are now known as PSSIEngines™, and they are designed for
use both internally and externally in third-party applications such as
Geographic Information Systems (GIS). These common modules were
being combined to develop PSS/ADEPTTM,the successor to PTI's distribution analysis product PSS/UTM, and the same approach was
applied to PSSNIPER. By using core graphics and analysis engines
augmented with a product-specific user interface that is driven by
market requirements, PTI has created a market-focused product which
benefits from use of existing, reliable, software components.
Full integration of this new product with PTI's existing products
was also a requirement. PSSNIPER can import PSS/E raw data files
and automatically construct a diagram (at present for systems up to
200-300 busbars) as well as export files in the PSS/E format including files required for dynamics. Additionally for the UK market,
PSSNIPER can import networks from the university-developed package, IPSA. This feature has enabled embedded-generation suppliers
to use PSSNIPER to provide PSS/E files of their network to the local
utility, while simultaneously allowing them to migrate to PSSNIPER.
Detailed reports are available for load-flow and fault-level results
as well as input data. Each of these reports can be saved as a file or
copied straight into a spreadsheet or word processor. Links for data
sources using ODBC have also been added, allowing users to extract
data from their own corporate database using ODBC data-source
Network diagrams are easily created using default data, which can
be altered and saved for future use. Options such as Copy and Paste
M.J.S. Edmonds, Product Manager
[email protected]
PTI has recently released Version 1.0 of a new analysis program, PSSNIPERTM (Power System Simulator for Visual Power
EngineeRing). PSSNIPER is an off-line power systems analysis
program that combines exceptional ease of use with powerful
analysis algorithms. It has been in use on a prototype basis for over
a year in organizations ranging from utilities, both in the UK and
USA, to military and civilian ship builders as well as to consultants
and cogeneration plant operators.
PSSNIPER was conceived to meet a new market for PTI: the
marine, industrial, and small utility market where, typically, power
systems are small and the technical requirements are high. Typical
power system analysis varies in these markets from rapid one-off
to regular system analysis. The main requirement was ease of use
within a single environment for power system analyses.
Analysis capabilities for load-flow, featuring induction machines
and circuit breakers, as well as time-decremented faults and
dynamic stability, were identified for the first release. On-going
developments include modules for harmonics, protection and coordination, transmission line constants, and low-voltage dc.
PSSNIPER is one of the new generation of PTI software
products which address specific market needs through the use of
common software modules. Where necessary, existing common
14.407 MlfII
53.281 MVAA
1.500 tvMI
1.161 MVAA
4.81 MlfII
11.57 MVk
-4.81 tvMI
-11.56 MVk
1.000 pu
Reaotor Bank
0.996 pu
3.30 tvMI
16.81 MVk
0.997 pu
Voltage Levels
19.908 M\I)I' Busbar4
9.978 MVAA 0.995 pu
50.000 MlfII
8.097 MVAA
-23.43 MlfII
.61 MVk
Typical View of a Power System Using PSSNIPER
0.000 tvMI
1.190 MVAR
4.81 MlfII
network items enable large networks to be constructed or altered
with ease. PSSNIPER incorporates state-of-the-art, fully
Microsoft®-compliant architecture which, combined with the use of
object oriented c++ language throughout, represents the latest in
software development technology with assured longevity.
then drive PSS/E manually. Only "table"-driven dynamics models
are available in PSSNIPER, user-written models that require
recompilation of PSS/E dynamic files are not supported.
The recently released version 1.0 of PSSNIPER provides loadflow, short circuit, and dynamic simUlation. Later versions will
include modules for harmonics, protection and coordination,
transmission line constants, and low voltage dc.
With PSSNIPER, PTI has been able to draw on available technology, and augment and focus these tools to address specific
needs of a new market. Users gain the advantage of a tool tailored
to the needs of their industry, combined with access to robust and
powerful analysis capabilities which have benefited from the experience of application in other market segments.
Internally, the PSS/Engines use physical values such as ohms
and volts, but PSSNIPER represents the power system data to the
user as either traditional per-unit on system base or per-unit on rating for each item. It also provides an induction motor model that
can be defined as either single- or double-cage models. Rotor data
can be either inner/outer or start/run; seamless transition between
the two types of data is provided. Power consumed by the induction motor can be calculated from either side of the motor shaft,
i.e., mechanical or electrical power.
For a demo CD, trial copy, or further details, contact Mike
Edmonds, Product Manager, Telephone +44 (0)1565 650388, Fax
+44 (0)1565 750376, or E-mail [email protected]
In 1988 a European Standard for fault level analysis was
issued, known as IEC909. At the same time, the UK electrical
industry was starting the process of privatization and one issue was
legality relating to compliance with standards. If IEC909 was
applied, then various switchgear used in the system could be
considered to be over-stressed and would have to be replaced.
This was due to the pessimistic techniques used - rightly so for
what IEC909 was intended for: an engineer's guide to fault calculation using a calculator. The aim of the standard was to establish a
practical and concise procedure yielding conservative results with
sufficient accuracy.
The Electricity Association established a committee in 1990
whose report, G74, recommended a number of techniques to
enable a more accurate fault level calculation. These techniques
addressed aspects such as break duties, which are to be calculated
at the time of clearance and to include induction motor contribution. It also recommends that saturated synchronous machine reactances be used where appropriate.
PSSNIPER supports the G74 standard, allowing the user to
specify the time after the fault has occurred and use this for the
fault currents to be evaluated. The type of fault current evaluated is
specified by the user who can select from Asymmetrical Peak,
Asymmetrical RMS, or Symmetrical RMS values.
Fault types can be balanced or unbalanced and the fault calculations include the contributions of induction machines (single or
double cage) and synchronous machines. Using this information,
circuit breakers in the system can be checked for over-stress. In
the near future we will allow for coloring on the diagram to show
over-stressed breakers. The user can also enter saturated synchronous machine parameters on the property page for each synchronous machine.
If you know of someone who should be receiving
Power Technology, they can easily be added to
our mailing list by sending an e-mail message to
[email protected] with the word SUBSCRIBE.
Please include their e-mail address, name, title,
department, company, type of company
(e.g., utility, IPP, manufacturer),
street and mailing address, as well as
phone and fax numbers.
PTI has extensive experience in the development of software
for dynamic system analysis which has been embodied in the
PSS/E product. PSSNIPER uses the dynamics-analysis section of
PSS/E as a calculation server to provide dynamic analysis of balanced three-phase power systems. PSSNIPER provides a simple
user interface to this powerful dynamics-analysis capability. Based
on the parameters specified through the PSSNI PER user interface,
the program generates data-input files describing the network for
the PSS/E Dynamics module which is then automatically started in
the background to perform the analysis. Results are returned for
display using the PSSPlT plotting program. Alternatively, experienced PSS/E users can generate the data files from PSSNIPER and
Don't forget that you can update your own
mailing list information via e-mail.
You can also call Jeanne Aviles at 518-395-5047
or send the information to her by mail:
Power Technologies, Inc., P.O. Box 1058,
Schenectady, NY 12301-1058.
PTI recently had the pleasure of conducting two six-week training sessions for engineers from the Egyptian Electricity Authority at
our offices in Schenectady, New York. In all, twelve engineers
attended the training which was funded by USAID and administered
by the Institute of International Education (liE). The curriculum for
each training session, SUbstation Design and Transmission Line
Design, respectively, was customized to the client's specification
and included presentations by PTI, NYSEG, and several other industry leaders. Visits to New York City, Niagara Falls, and Washington,
DC, were cultural highlights of the study tour.
Left to right standing: Taoufik Ben Ammar, Interpreter, Mamdouh
Abdel Fattah Mohamed Hatem, Mona Aly Abd Alia Haggag,
Mohamed Anwar Mohamed Hassanin, Ehab Fawzy Mahmoud
Ibrahim Khamis, left to right sitting: Hekmat Abdel Rahman Selim EI
Sebaie, Nahed A. Heggi, Fayza Hamdy Mohamed Anwar.
For further information on any of the following publications, please contact:
Jeanne M. Aviles, Power Technologies, Inc.
1482 Erie Boulevard, P.O. Box 1058,Schenectady, NY 12301-1058
Telephone (518) 395-5047 • Fax (518) 346-2777 • [email protected]
Author(s) and (Affiliation)
Publication Tille
Date & Occasion of Presentation
H.w. Zaininger (PTI) and B. Parsons
(National Renewable Energy Laboratory)
Integrating Wind Turbines into the Orcas Island
Distribution System: Study Results
April 27 -May 1, 1998 - Presented at the
American Wind Energy Association
Wind power '98, Bakersfield, CA
J. Zhu, P. Jossman (PTI)
Application of Design Patterns for Object-Oriented
Modeling of Power Systems
July 12-16, 1998 - Presented at the 1998
IEEE/PES Summer Meeting, San Diego, CA, IEEE
Paper No. PE-494-PWRS-1-06-1998, accepted
for publication in the IEEE Transactions on
Power Systems
L. Oppel (PTI) and
E. Krizauskas (NYSEG)
Evaluation of the Performance of Line Protection
Schemes on the NYSEG Six-Phase Transmission
July 12-16, 1998 - Presented at the 1998
IEEE/PES Summer Meeting, San Diego, CA, IEEE
Paper No. PE-408-PWRD-0-03-1998, accepted
for publication in the IEEE Transactions on
Power Delivery
T.A. Short (PTI) and
R.H. Ammon (LiLCO)
Monitoring Results of the Effectiveness of
Surge Arrester Spacings on Distribution
Line Protection
July 12-16, 1998 - Presented at the 1998
IEEE/PES Summer Meeting, San Diego, CA,
IEEE Paper No. PE-422-PWRD-0-06-1998,
accepted for publication in the IEEE
Transactions on Power Delivery
C.A. Warren, T.A. Short (PTI),
J.J. Burke (ABB Power T&D Co.),
H. Morosini (Champion Int'I),
C.W. Burns, and J. Storms
(Niagara Mohawk Power Corp)
Power Quality at Champion PaperThe Myth and the Reality
July 12-16, 1998 - Presented at the 1998
IEEE/PES Summer Meeting, San Diego, CA,
IEEE Paper No. PE-340-PWRD-0-06-1998,
accepted for publication in the IEEE
Transactions on Power Delivery
(continued on Pg. 8)
Author(s) and (Affiliation)
Publication Title
Date & Occasion 01 Presentation
L.N. Hannett, B.P. Lam,
F.S. Prabhakara (PTI),
Q. Guofu, D. Mincheng, B. Beilei
(East China Electric Power Group Co.)
Modeling of a Pumped Storage
Hydro Plant for Power System
Stability Studies
August 18-21, 1998 - Presented at
POWERCON '98 - International Conference
on Power System Technology, Beijing, China
W.R. Puntel, F.S. Prabhakara,
G. Lawrence (PTI), C. Kaiyong,
and W. Xiaojiong (East China
Electric Power Group Co.)
A Probabilistic Approach for the
Development of Operation Strategies
for Pumped-Storage Power Plants
August 18-21, 1998 - Presented at
POWERCON '98 - International Conference
on Power System Technology, Beijing, China
B.P. Lam, F.S. Prabhakara (PTI),
D. Mincheng, and G. Jiatian
(East China Electric Power Group Co.)
Transmission Contingency, Voltage Collapse
and Transfer Limits Evaluation for the
Pumped Storage Hydro Project
August 18-21, 1998 - Presented at
POWERCON '98 - International Conference
on Power System Technology, Beijing, China
J. Stewart, L. Oppel (PTI),
R. Brown, and T. Landers (NVSEG)
Six-Phase Successfully Applied to Utility
Transmission System
August 3D-September 5, 1998 - Paper No.
22/33/36-01, presented at the 37th CIGRE
Session, Paris, France
L.O. Barthold, V.A. Kazachkov, et al.
(Trans-Asia Power Transmission/PTI),
V.M. Borovski, S.V. Kuimov, and
A. Svidchenko (Irkutskenergo)
Privately Financed Transmission The Trans-Asia Example
September 22-26, 1998 - Presented at the
Conference on Eastern Energy Policy of
Russia and Problems of Integration into the
Energy Space of the Asian Pacific Region,
Irkutsk, Russia
H.W. Zaininger, P.P. Barker (PTI),
and F. Goodman (EPRI)
Integration of Distributed Resources in
Electric Utility Systems: Current
Interconnection Practice and Unified Approach
October 21-23, 1998 - Presented during
Distributed Resources Week 1998: Strategies
for Successful Implementation, Milwaukee,
---'\;-'--power technology
For Further Information
Contact: Jeanne M. Aviles
Power Technologies, Inc.
P.O. Box 1058
Schenectady, N.Y. 1230101058
Telephone 518-395-5000
FAX 518-346-2777
Address Service Requested
~ a:
a:: Ien a:
z I- Zw en
:::> LL
<C en
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a:: e (!)
~ en
• • • •
Modifying & Maintaining Structures and Conductors in Transmission
Line Uprating - Joint Course with EPRI Power Delivery Center
Voltage Control & Reactive Power Planning
Distribution Lightning Protection
Improving Reliability of Large Interconnected Systems
PSS/E - Introduction to Dynamic Simulation
Fundamentals of Protective Relaying
PSS/E - Introduction to Power Flow & Steady State Analysis
Reliability Issues in Competitive Environment
Power Distribution Systems
Planning & Operating in Modern Power Markets
• •
• •
Power System Analysis
Application of Distributed Generation Technologies
Fundamentals of Overhead Transmission Line Design
Marine Power Systems
Substation Design - Joint Course with
New York State Electric & Gas
Power Distribution Systems Economics
Low Voltage Secondary Networks
Extruded Dielectric Transmission Cables
Courses will be presented at PTI Offices in Schenectady, NY, unless otherwise noted
Advanced Transmission Planning with Modern Network Analysis
Tools (PSS/E, TPLAN & OPF)
PSS/OPF - Optimal Power Flow
Real-Time Thermal Monitoring and Rating of Transmission Circuits
Distribution System Losses
PSS/E - Advanced
PSS/U and PSS/ADEPT (3 or 4 day version)
Developing System Operator Training Programs for Accreditation
Fundamentals of Overvoltage and Insulation Coordination
Machine Parameter Measurements for Improved Modeling
Introduction to PSS/Engines
Underground Cable Systems: Principles and Analytical Techniques Joint Course with Power Delivery Consultants, Inc.
Advanced Transmission Line Uprating and Design
Reliability Assessment Methods for Transmission Systems
Power Plant Performance and Monitoring
PnWAr SvstAm Dvnamir.s
Jan. 19-21
Feb. 16-18
Mar. 3-4
Mar. 9-11
Oct. 19-21
Mar. 15-19
Sept. 27 -Oct. 1
Mar. 22-25
Dec. 6-9
Apr. 12-16
Sept. 20-24
Apr. 21-23
Apr. 26-30
Sept. 20-24
Apr. 26-30
Oct. 18-22
May 4-6
Sept. 14-16
May 10-11
Dec. 1-2
May 10-14
May 11-13
May 17-21
Nov. 15-19
May 17-18
Sept. 28-29
May 24-26
Oct. 26-28
Jun. 2-4
$1510 - Fort Worth, TX
$1510 - Tampa, FL
$1025 - Orlando, FL
$1510 - Tampa, FL
$1510 - Las Vegas, NV
$1725 - Calgary, Alberta, Canada
$1645 - Boston, MA
$1725 - Boston, MA
$1025 - Houston, TX
$1025 - Sacramento, CA
$1510 - Reno, NV
Jun. 7-11
Sept. 8-10
Sept. 27-29
Sept. 30-0ct. 1
Oct. 4-8
Oct. 13-15
Oct. 19-21 (Oct. 22)
Oct. 25-27
Nov. 2-4
Nov. 3-5
Nov. 1-3
$1510- Sacramento, CA
$1510 ($1645)
$1025 - Nashville, TN
$1025 - St. Petersburg Beach, FL
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See other side for more course listings
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Courses will be presented at PTI Offices in Schenectady, NY, unless otherwise noted
Transient Analysis Using EMTP
Distribution Planning & Reliability
Photovoltaic Systems and Applications
Nov. 29-Dec. 3
Dec. 6-10
Dec. 15-17
$1510 - Phoenix, AZ
conducted at Power Technologies, Inc. Corporate Headquarters, Schenectady, NY
Power Distribution Systems Engineering
- A Four Week Course of Study April 26 - May 21
This course offers a comprehensive curriculum in distribution system engineering including system
design, protection, equipment applications, economics, and distribution system planning.
Participants will have the opportunity to examine new technologies and become familiar with the
latest industry trends to increase system efficiency and reduce costs. Distribution engineers wishing to broaden their technical skills and improve their ability to meet the challenges of today's
utility environment will find this course valuable.
Transmission line Design and Upgrading
- A Four Week Course of Study May 10 - June 4
This training program will allow both experienced and novice transmission line design engineers to
review and upgrade their skills and learn how to apply the latest materials and design techniques.
The course will cover both design of new lines and upgrading of existing lines over the full range of
HV and EHV voltage levels.
Power System Transmission Planning & Analysis
- A Six-Week Course of Study September 13 - October 22
A comprehensive approach to gaining the practical knowledge necessary to effectively use and apply
power engineering analytical tools and methodologies in transmission system planning. The course
includes sessions on planning concepts and principles are combined with intensive "hands-on" use
of PTI's PSS/E program, application workshops, and study tours of utility sites for a broad-based
learning experience.
Europe - Manchester, United Kingdom
Power System Dynamics
Call Administrator
April 12-16
Introduction to PSS/E Power Flow and Steady-State Analysis
Call Administrator
Call Administrator
Oct. 5-7
Oct. 26-28
Introduction to PSS/E Dynamic Simulation
Cancellation Policy
Occasionally, unforeseen events or insufficient enrollment may necessitate the cancellation of a course. If a course is canceled, PTI will attempt to notify each
registrant no later than 14 days prior to the start of the course. PTI is not responsible for any cancellation charges imposed by airlines, hotels or travel agents.
Registration Note
It is recommended that you register one month before any course. Registrations will be accepted within the month time frame but space may be limited.
For further Information on courses or registration
. In the United States contact:
Educational Programs
Power Technologies, Inc.
1482 Erie Boulevard, P.O. Box 1058
Schenectady, NY 12301-1058
Telephone 518-395-5005
Fax 518-346-2777
E-mail [email protected]
In Europe contact:
Charles A. Lynch
Power Technologies Ltd.
Cranford Court, King Street
Knutsford, Cheshire WA16 8BW, UK
Telephone (44)1565-650388
Fax (44) 1565-750376
E-mail [email protected]
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