0..1

A two-character circuit identifier. Parallel branches must have different circuit identifiers. The circuit identifier is enclosed in quotation marks. (ASPEN attribute)

0..1

Out-of-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available. (ASPEN attribute)

0..1

In-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available (ASPEN attribute).

0..1

Positive-sequence shunt susceptance on the Bus1 side, in per unit. The same value is used for the negative sequence. The default value is 0.0 (ASPEN attribute).

0..1

Zero-sequence shunt susceptance on the Bus1 side, in per unit. The default value is B1 (ASPEN attribute).

0..1

Positive-sequence shunt susceptance on the Bus2 side, in per unit. The same value is used for the negative sequence. B2 can be different from B1, but unbalanced lines cannot be mutually coupled. The default value is B1 (ASPEN attribute).

0..1

Zero-sequence shunt susceptance on the Bus2 side, in per unit. The default value is B10 (ASPEN attribute).

0..1

Positive-sequence shunt conductance on the Bus1 side, in per unit. The same value is used for the negative sequence. The default value is 0.0 (ASPEN attribute).

0..1

Zero-sequence shunt conductance on the Bus1 side, in per unit. The default value is G1 (ASPEN attribute).

0..1

Positive-sequence shunt conductance on the Bus2 side, in per unit. The same value is used for the negative sequence. G2 can be different from G1, but unbalanced lines cannot be mutually coupled. The default value is G1 (ASPEN attribute).

0..1

Zero-sequence shunt conductance on the Bus2 side, in per unit. The default value is G10 (ASPEN attribute).

0..1

I^2T rating of line in ampere^2 Sec (ASPEN attribute).

0..1

A 12-character name for the configuration type used to calculate the electrical parameters for the transmission line. The type name is enclosed in quotation marks. The type name, if not blank, must match one of the type names in the ASPEN Line Table File, ASPEN.LTB. The type name is blank by default (ASPEN attribute)

0..1

A 1-2 character name for the length unit (m,km,ft,kt,mi)

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

Area load flow interchange metering flag. 1 if power flow is metered at Bus1. 2 if it is metered at Bus2. 0 if the line is in a single area (ASPEN attribute).

0..1

Group 1 contact parting time

0..1

Group 2 contact parting ime

0..1

Breaker rating check method for group 1: Specifies the current that the breaker must interrupt: 0 for the total current of all devices in the group; 1 for maximum individual device current in the group (ASPEN attribute).

0..1

Breaker rating check method for group 2: Specifies the current that the breaker must interrupt: 0 for the total current of all devices in the group; 1 for maximum individual device current in the group (ASPEN attribute).

1..1

A mechanical switching device capable of making, carrying, and breaking currents under normal circuit conditions and also making, carrying for a specified time, and breaking currents under specified abnormal circuit conditions e.g. those of short circuit.

1..1

kV Range Factor: The default value is 1.0. This is only used when the breaker is IEEE rated. (ASPEN attribute).

1..1

Non-AC Decrement Factor (NACD) .This factor must be between 0 and 1.0 (ASPEN attribute).

1..1

Breaker Derating Flag: 0 if the breaker is to be derated because of reclosing operation: 1 if it is not. The default value is 0. This is only used when the breaker is IEEE rated. (ASPEN attribute)

0..1

Operating kV

0..1

Enter an interger number computed as X + Total number of open operaions for devices in group 1, where X = 10 if the reclosing is set to take place in faults on the forward direction (line side) only; and X = 0 otherwise.

0..1

Enter an interger number computed as X + Total number of open operaions for devices in group 2, where X = 10 if the reclosing is set to take place in faults on the forward direction (line side) only; and X = 0 otherwise.

0..1

Max Design kV

1..1

Rating method of the breaker. Enter 0 for 'IEEE-Symmetrical Current'; 1 for 'IEEE-Total current'; 2 for ‘IEC’ (ASPEN attribute).

0..1

Group first Reclosing Interval in seconds: The reclosing interval is the elapse time between successive
breaker opening and reclosing. You must enter (n-1) positive values, where n is the total number of operations to lockout
(item 11). The default value is 0.0 0.0. 0.0. This is only used when the breaker is IEEE rated.

0..1

Group second Reclosing Interval in seconds: The reclosing interval is the elapse time between successive
breaker opening and reclosing. You must enter (n-1) positive values, where n is the total number of operations to lockout
(item 11). The default value is 0.0 0.0. 0.0. This is only used when the breaker is IEEE rated.

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

Out-of-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available. (ASPEN attribute)

0..1

In-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available (ASPEN attribute).

0..1

VI curve point 1 - Angle

0..1

VI curve point 2 - Angle

0..1

VI curve point 3 - Angle

0..1

VI curve point 4 - Angle

0..1

VI curve point 5 - Angle

0..1

VI curve point 6 - Angle

0..1

VI curve point 7 - Angle

0..1

VI curve point 8 - Angle

0..1

VI curve point 9 - Angle

0..1

VI curve point 10 - Angle

0..1

Term. V limit shutdown flag: 1-Use the lowest phase voltage; 0- Use the +seq. voltage.

0..1

VI curve point 1 - I

0..1

VI curve point 2 - I

0..1

VI curve point 3 - I

0..1

VI curve point 4 - I

0..1

VI curve point 5 - I

0..1

VI curve point 6 - I

0..1

VI curve point 7 - I

0..1

VI curve point 8 - I

0..1

VI curve point 09 - I

0..1

VI curve point 10 - I

0..1

MVA rating

0..1

VI curve point 1 - V

0..1

VI curve point 2 - V

0..1

VI curve point 3 - V

0..1

VI curve point 4 - V

0..1

VI curve point 5 - V

0..1

VI curve point 6 - V

0..1

VI curve point 7 - V

0..1

VI curve point 8 -V

0..1

VI curve point 9 -V

0..1

VI curve point 10 -V

0..1

PT location flag

0..1

Term. V limit - upper.

0..1

Term. V limit - lower.

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

Area slack bus (String).

0..1

Unit id of loadunit (ASPEN attribute)

0..1

Out-of-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available. (ASPEN attribute)

0..1

In-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available (ASPEN attribute).

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

Out-of-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available. (ASPEN attribute)

0..1

In-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available (ASPEN attribute).

0..1

Crowbar flag

0..1

Filter reactance at power frequency

0..1

Imax grid side

0..1

Imax rotor side

0..1

Rotor leakage inductance

0..1

Stator leakage inductance

0..1

Mutual inductance

0..1

Unit rated MVA

0..1

Unit MW generation

0..1

Unit rated MW.

0..1

Rotor resistance

0..1

Stator resistance

0..1

Slip at rated kW

0..1

Number of units.

0..1

Vmax

0..1

Vmin

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

Out-of-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available. (ASPEN attribute)

0..1

In-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available (ASPEN attribute).

0..1

Control mode

0..1

Imax

0..1

Imax at low V

0..1

Unit MVA

0..1

Unit MVAR generation

0..1

Unit MW.

0..1

Scheduled P

0..1

Scheduled Q

0..1

+ seq slope

0..1

- seq slope

0..1

Number of units.

0..1

Low V threshold

0..1

Vmax

0..1

Vmin.

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

ML_MUSEGS Mutual impedance and from/to percents data fields for up to 5 segments: enter a string with space delimited data fields in the following sequencse:
- Rm: mutual resistance
- Xm: mutual reactance
- FromPcnt1, ToPcnt1: start/end point the segment on line 1, in percent of total line impedance, measured from the bus 1 of the line (terminal 1 above)
- FromPcnt2, ToPcnt2: Start/end point of the segment on line 2, in percent of total line impedance, measured from the the bus 1 of the line (terminal 3 above).

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

A two-character circuit identifier. Parallel branches must have different circuit identifiers. The circuit identifier is enclosed in quotation marks. (ASPEN attribute).

0..1

Out-of-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available. (ASPEN attribute)

0..1

In-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available (ASPEN attribute).

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

Area load flow interchange metering flag. 1 if power flow is metered at Bus1. 2 if it is metered at Bus2. 0 if the transformer is in a single area (ASPEN attribute).

1..1

Fictif bus number (ASPEN attribute).

1..1

Zero sequence T model (ASPEN attribute).

0..1

Configuration of winding in Transformer 2-winding or Transformer 3-winding from OLR (ASPEN attribute).

0..1

Negative-sequence series susceptance (ASPEN attribute).

0..1

Positive-sequence susceptance of the line shunt on the Bus1 side. All line-shunt admittances are based on the system MVA base and the nominal kV of the branch terminals. The default value is 0.0. (ASPEN attribute).

0..1

Zero-sequence conductance of the line shunt on the Bus1 side. All line-shunt admittances are based on the system MVA base and the nominal kV of the branch terminals. The default value is 0.0. (ASPEN attribute).

0..1

Positive-sequence conductance in per unit of the line shunt on the Bus1 side. The default value is 0.0 (ASPEN attribute).

0..1

Zero-sequence susceptance in per unit of the line shunt on the Bus1 side. The default value is 0.0. (ASPEN attribute).

0..1

Negative-sequence series conductance (ASPEN attribute).

1..1

Grounding resistance in ohms (ASPEN attribute).

0..1

Negative-sequence series resistance (ASPEN attribute)

0..1

The Bus winding tap voltage in kV, line-to-line. The default is the nominal kV of Bus (ASPEN attribute)

0..1

Grounding reactance in ohms (ASPEN attribute).

0..1

Negative-sequence series reactance (ASPEN attribute).

0..1

Max Angle Limit: The Power Flow Program will adjust the phase shift between this value and the minimum angle limit PS_ANGMIN. The program requires the maximum angle to be more than 1 degree larger than the minimum angle. The default value is 0.0. (ASPEN attribute).

0..1

Min Angle Limit (ASPEN attribute).

0..1

A transformer phase shifting tap model that controls the phase angle difference across the power transformer and potentially the active power flow through the power transformer. This phase tap model may also impact the voltage magnitude.

0..1

Impedance multiplier coefficient for ZCORRECT. Default = 0+j0 (ASPEN attribute)

0..1

LTC Ganged Flag. 1 if this LTC moves in unison with other LTCs that control the same bus voltage. 0 otherwise. (ASPEN attribute).

0..1

Maximum tap voltage in per-unit. The default is 1.50 (ASPEN attribute).

0..1

Minimum tap voltage in per-unit. The default is 0.51. (ASPEN attribute).

0..1

Maximum phase current output during a fault, in amperes.

0..1

Maximum phase current output during a fault, in amperes (ASPEN attribute).

0..1

The angle of the voltage source in the generator model. This angle and the open-circuit voltage GN_REFV are used in solving the network to obtain prefault voltage at all buses when the OneLiner fault (ASPEN attribute).

0..1

The magnitude of the voltage source in the generator model (ASPEN attribute).

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

A two-character circuit identifier. Parallel branches must have different circuit identifiers. The circuit identifier is enclosed in quotation marks. (ASPEN attribute)

0..1

Out-of-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available. (ASPEN attribute)

0..1

In-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available (ASPEN attribute).

0..1

Bypass flag: 1 for in-service series capacitor/reactor; 2 for bypassed series capacitor/reactor. (ASPEN attribute).

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

Shunt Unit Identifier: A 2-character identifier used to differentiate between multiple shunt units on the same bus (ASPEN attribute)

0..1

Winding Transformer Shunt Flag: 1 if the shunt is part of the T model of a 3-winding transformer; 0 if is not. The default value is 0. This flag is for output purposes only. It has no effect on the solution. (ASPEN attribute)

0..1

Out-of-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available. (ASPEN attribute)

0..1

In-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available (ASPEN attribute).

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

A two-character circuit identifier. Parallel branches must have different circuit identifiers. The circuit identifier is enclosed in quotation marks. (ASPEN attribute)

0..1

Out-of-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available. (ASPEN attribute)

0..1

In-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available (ASPEN attribute).

0..1

Default status: 1 if the switch is normally closed; 2 if it is normally open; 0 if it does not have a default state (ASPEN attribute).

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

A two-character circuit identifier. Parallel branches must have different circuit identifiers. The circuit identifier is enclosed in quotation marks. (ASPEN attribute)

0..1

Out-of-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available. (ASPEN attribute)

0..1

In-service date. Must be in the format YYYY/MM/DD. Set to N/A if not available (ASPEN attribute).

0..1

The subtransient resistance (per-unit on generator base) in the positive-sequence generator model (ASPEN attribute)

0..1

The transient resistance (per-unit on generator base) in the positive-sequence generator model (ASPEN attribute)

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

0..1

Hide ID on 1-line flag. 0: false; 1: true. Default: False (ASPEN attribute)

0..1

Location name for bus, maximum of 24 characters. The default value is first 8 characters of bus name (ASPEN attribute).

0..1

0 (False) if it is a regular bus. 1 (True) if it is a midpoint of a 3-winding transformer represented as T-equivalent (ASPEN attribute).

0..1

State-plane coordinate. This is a floating-point number. The X coordinate is assumed to increase in the “right” direction. (ASPEN attribute).

0..1

State-plane coordinate. This is a floating-point number. The Y coordinate is assumed to increase in the “up” direction (ASPEN attribute).

0..1

Substation group number for this bus. The default value is 0 (ASPEN attribute).

0..1

Tap bus flag. 0 if it is a regular bus; 1 if it is a tap bus at the junction of two line sections; 2 if it is the middle node of a 3-terminal line (ASPEN attribute)

0..1

Imaginary part of the bus voltage from a power flow solution, in per-unit (ASPEN attribute).

0..1

Real part of the bus voltage from a power flow solution, in per-unit. (ASPEN attribute).

0..1

Tags in string are separated by semicolon. Any alpha-numeric characters can be used, except for the string delimiter (single or double quotation mark). The tag string is enclosed in quotation marks. (ASPEN attribute).

Apparent power in volt ampere.

Active power in watt.

Reactive power in volt ampere reactive.

Apparent energy in volt ampere hours.

Real energy in what hours.

Reactive energy in volt ampere reactive hours.

Voltage in volt.

Resistance in ohm.

Current in ampere.

Capacitance in farad.

Inductance in henry.

Relative temperature in degrees Celsius. In the SI unit system the symbol is ºC. Electric charge is measured in coulomb that has the unit symbol C. To distinguish degree Celsius form coulomb the symbol used in the UML is degC. Reason for not using ºC is the special character º is difficult to manage in software.

Time in seconds.

Time in minutes.

Time in hours.

Plane angle in degrees.

Plane angle in radians.

Energy in joule.

Force in newton.

Conductance in siemens.

Dimension less quantity, e.g. count, per unit, etc.

Frequency in hertz.

Mass in gram.

Pressure in pascal (n/m2).

Length in meter.

Area in square meters.

Volume in cubic meters.

Pico 10**-12.

Nano 10**-9.

Micro 10**-6.

Milli 10**-3.

Centi 10**-2.

Deci 10**-1.

Kilo 10**3.

Mega 10**6.

Giga 10**9.

Tera 10**12.

No multiplier or equivalently multiply by 1.

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1

0..1