FOR INTERNAL USE ONLY
GTC Project Number:
2100 East Exchange Place
PO Box 2088
Tucker, GA 30085-2088
Phone 770-270-7400
Fax 770-270-7872
Queue Date:
Generation Interconnection Study Data Sheet – Synchronous Machines
Customers must provide the following information in its entirety. GTC will not proceed with an interconnection study until all data
is received and confirmed to be practical. GTC uses PTI or IEEE standard models to perform power flow and stability analysis. If
the information provided conforms to a PTI or IEEE model, please specify. Study results are dependent on study data provided by
the customer. Notification of changes to data should be provided, in writing, as promptly as possible. Any change in the study data
will have an impact on the performance of the study and the study results provided.
*******
1) REQUESTOR OF INTERCONNECTION STUDY
Company Name:
Company Phone Number:
Project Name:
Project Address:
Application Submitted By:
Contact Name:
Date:
Phone Number:
Email:
2) DESCRIPTION OF REQUEST
A) Type of Request(i.e. network resource, IPP) :
B) Maximum Gross Capacity: MW at
°F Ambient and
Percent Relative Humidity
i) Will generation be installed incrementally?
ii) Portion of request which is designated a network resource
percent
iii) Portion of request for interconnection service only
percent
iv) Number of machines:
C) Location of Interconnection
ii) Distance of customer plant from ITS point of
interconnection:
miles
i) County:
iii) Substation:
iv) Transmission Line:
D) Single-Line Diagram:
i) Customer must provide a dimensioned (in miles) single line diagram illustrating the proposed customer
switchyard and the distance of the proposed point of interconnection from the nearest existing substation. See
attached Single line PDF document
ii) When making multiple requests for interconnection, the customer is required to provide this information for
each request.
E) Is this location an alternate to another request made to an ITS Participant?
NOTE: The ITS Participants are Georgia Transmission Corporation, Georgia Power/Southern Company,
MEAG Power, and Dalton Utilities. This information is needed to alleviate duplication of analysis of generation
requests within the ITS.
YES
If yes, please indicate location and MW
Location
MW
F) Expected commercial date:
NO
G) Expected Back Feed Date:
H) Voltage level in kV requested for interconnection:
Georgia Transmission Corporation, Page 1 of 5
Rev. 7: October 2012
3) GENERATOR MACHINE DATA
A) Type of Generation and fuel(s) (Simple Cycle, Combined Cycle, Cogeneration, etc.)
B) Expected Load Factor of Generation:
C) Generator Base MVA:
D) Generator Active Power Gross Output at 60 % Relative Humidity for Change in Ambient Temperature:
i) Maximum Gross Output:
ii) Minimum Gross Output:
MW at 40°F
MW at 40°F
MW at 59°F
MW at 59°F
MW at 95°F
MW at 95°F
Generator Active Power Gross Output at
iii) Maximum Gross Output:
MW at
% Relative Humidity
MW at
% Relative Humidity
MW at
% Relative Humidity
MW at
% Relative Humidity
MW at
% Relative Humidity
°F Ambient for Change in Humidity:
iv) Minimum Gross Output:
MW at
% Relative Humidity
MW at
% Relative Humidity
MW at
% Relative Humidity
MW at
% Relative Humidity
MW at
% Relative Humidity
E) Generator Rated Terminal Power Factor:
Lagging:
Leading:
F) Generator Reactive Power Output at Rated Power Factor:
Maximum Gross Output:
Minimum Gross Output:
MVAr at 40°F
MVAr at 40°F
MVAr at 59°F
MVAr at 59°F
MVAr at 95°F
MVAr at 95°F
G) Generator Rated Terminal Voltage in kV:
H) Attach Generator(s) Capability Curve(s) at Rated Terminal Voltage and Rated Power Factor(s)
I) Generation Saturation Factor Data: Attach Generator(s) Saturation Curves
J) i) S(1.0):
ii) S(1.2):
K) Attach Generator(s) Performance V-Curves s
L) Provide all Applicable Generator(s) (unsaturated and saturated) Reactance in per unit on Machine MVA Base.
Unsaturated
i) Direct-axis synchronous …
reactance Xd’
transient reactance Xd’
sub-transient reactance Xd”
armature resistance RA’ =
Saturated
=
=
=
iii) Quadrature-axis synchronous …
reactance Xq’
transient reactance Xq’
sub-transient reactance Xq”
v)Leakage reactance Xl
=
vi)Negative sequence Z
=
=
=
=
Georgia Transmission Corporation, Page 2 of 5
ii) Direct-axis synchronous …
reactance Xd
transient reactance Xd’
sub-transient reactance Xd”
=
=
=
iv) Quadrature-axis synchronous …
reactance Xq
transient reactance Xq’
sub-transient reactance Xq”
=
=
=
Z = Impedance
vii) Zero sequence Z =
Rev. 7: October 2012
viii) Generator neutral grounding transformer type
(show on one-line diagram):
ix) Generator neutral grounding resistor – provided
in section “L” (show on one-line diagram)
PROVIDE ALL APPLICABLE TIME CONSTANTS IN SECONDS
(A)
Tdo’ =
(D-axis transient open-circuit time constant)
(B)
Tdo” =
(D-axis sub-transient open-circuit time constant)
(C)
Tqo’=
(Q-axis transient open-circuit time constant)
(D)
Tqo” =
(Q -axis sub-transient open-circuit time constant)
(E)
Td’ =
(D-axis transient short-circuit time constant)
(F)
Td” =
(D-axis sub-transient short-circuit time constant)
(G)
Tq’=
(Q-axis transient short-circuit time constant)
(H)
Tq” =
(Q-axis sub-transient short-circuit time constant)
------------------------------------------------I) Turbine-Generator combined inertia constant
(H) (KW-sec/KVA) :
J) Speed damping factor, D =
K) Provide positive, negative and zero sequence
reactance in per unit:
L) Neutral grounding resistor in Ohms unit (if
applicable):
Ohms
M) Phase: Single:
Three:
N) R.P.M. :
O) Frequency:
P) Describe if any MUST-RUN designation is
applicable:
(4) GENERATOR MODEL DATA
* Provide Generator model type selected: (example: Round Rotor generator model (GENROU) and Salient pole
generator model (GENSAL).
* Provide valid model data for dynamic simulation corresponding to the models selected.
** It is preferred that dynamic data submitted to GTC is in version 30 PSS/E data sheet format and the selected
models conform to IEEE or PTI models. **
5) EXCITATION SYSTEM DATA
A) Provide Excitation system model (exciter and A.V.R.) model type selected:
B) Provide Power compensator model selected (if applicable):
C) Provide Power Stabilizer models selected (if applicable):
D) Provide Block diagrams for each model selected in A) through C) above.
E) Provide all applicable gains, time constants, limits, and saturation constants.
F) Provide appropriate nomenclature sheet describing parameters together with tabulated parameter values.
** It is preferred that dynamic data submitted to GTC is in version 30 PSS/E data sheet format and the selected
models conform to IEEE or PTI models. **
6) TURBINE-GOVERNOR SYSTEM DATA
A) Provide governor model type selected.
B) Provide Block diagrams for each model selected in A).
C) Provide all applicable gains, time constants, and limits.
Georgia Transmission Corporation, Page 3 of 5
Rev. 7: October 2012
D) Provide appropriate nomenclature sheet describing parameters together with tabulated parameter values.
** It is preferred that dynamic data submitted to GTC is in version 30 PSS/E data sheet format and the selected
models conform to IEEE or PTI models. **
7) CIRCUIT BREAKER DATA (if applicable):
A) Rated Voltage in kV (maximum, R.M.S., Line-to-line, 60 Hz Operating Voltage):
B) Rated Ampere (Maximum, R.M.S., continuous, 60 Hz rated current):
C) Interrupting Rating:
D) Cycle rating for interruption (Rated interrupting time):
E) BIL Rating:
F) Interrupting and insulating media:
G) Tripping and closing control voltages:
H) Relay accuracy class:
I) Cycles required for interrupting:
8) GENERATOR STEP-UP TRANSFORMER DATA
1) Two-winding step-up (GSU) transformer Data (if applicable):
A) Transformer Base MVA (for impedance):
B) Full Load Ratings (OA/FA/FOA):
C) Sequence impedance (R and X) in per unit: Positive:
Negative:
Zero:
D) Available Tap positions:
E) Voltage in kV: Rated High Side:
Rated Low side:
F) X/R ratio
G) Neutral grounding Resistor in Ohms (if applicable):
H) GSU (HV-LV) Connection and winding (Please show on the single line diagram)
I) BIL Rating:
J) Impedance to ground:
K) Load losses in watts:
L) Current Tap position:
2) Three-winding Generator step-up (GSU) transformer Data (if applicable):
A) Provide connection and winding (Please show on the single line diagram)
B) Provide the following:
H-Winding Data:
Full Load MVA Rating (i.e. OA/FA/FOA)
BIL Rating:
Rated kV base:
Grounding Data:
X-Winding Data:
Full Load MVA Rating (i.e. OA/FA/FOA)
BIL Rating:
Rated kV base:
Grounding Data:
Y-Winding Data:
Full Load MVA Rating (i.e. OA/FA/FOA)
BIL Rating:
Rated kV base:
Grounding Data:
H-X Winding Data:
Transformer base for impedance:
MVA
Sequence impedance:
Positive: R:
per unit X:
Negative: R:
per unit X:
per unit
Zero: R:
per unit X:
per unit
Available Tap positions:
Current Tap position:
Georgia Transmission Corporation, Page 4 of 5
per unit
Rev. 7: October 2012
H-Y Winding Data:
Transformer base for impedance:
MVA
Sequence impedance:
Positive: R:
per unit X:
Negative: : R:
per unit X:
per unit
Zero: R:
per unit X:
per unit
Available Tap positions:
Current Tap position:
X-Y winding Data:
Transformer base for impedance:
MVA
Sequence impedance:
Positive: R:
per unit X:
Negative: R:
per unit X:
per unit
Zero: R:
per unit X:
per unit
Available Tap positions:
Current Tap position:
per unit
per unit
9) STATION AUXILIARY LOAD
A) For total plant (MW and MVAr):
B) Served through which transformer(s) – (e.g., the 2 CT GSU’s of the 2-on-1 CC):
C) Amount served through each transformer (MW and MVAr):
Georgia Transmission Corporation, Page 5 of 5
Rev. 7: October 2012