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Switch Data

Figure 1: Switch Data Dialog Box

Connection Information

Option	Description
ID Name	Uniquely identifies the switch. This ID name can be up to 16 characters long. The names default to SW-1, SW-2, SW-3... you enter new switches on the one-line, but you can change those names to make them more descriptive if needed.
On Bus	The bus to which the switch connects, which must already exist on the one-line. For reference, the On Bus base kV is displayed next to the bus name.
Connection Type	Whether the switch is connected as a Feeder (such as to a cable, busway, or transformer) or as a Tie (between two buses).
Open/Closed	Normal state of the switch. If Open, the one-line displays "OPEN" next to the switch symbol. If Closed, the one-line symbol does not show the "OPEN" tag.

Option	Description
Mfr	Provides a list of switch manufacturers available in the device library. If the desired manufacturer is missing from the list, select Other.
Type	Switch types available from the manufacturer chosen in the Mfr field above. If the desired manufacturer is missing from the list, select Other.
Style	Switch styles available from the manufacturer chosen in the Mfr field above in the type specified. After you choose a manufacturer and type, the styles available in the yellow column of the corresponding device library page are displayed here.
Continuous Current	Continuous current of the switch. This value is for reference only and does not affect analysis.

Figure 2: Short Circuit tab of Switch Data Dialog Box

Option	Description
Mon/C&L (kA)	Momentary or close & latch rating of the switch. The values available from the device library are typically the close and latch values for spring and mechanically operated switches, since this is the lowest rating. Some switches, however, have only momentary ratings.
Calculate	Fills in a computed value for the Mon/C&L field, based on the device library entry for Mfr, Type, Style, and the base kV. You can override this value by typing in a different number. This button also causes the appropriate testing standard to be displayed for your information. (The testing standard comes directly from the device library and cannot be changed.)

Figure 3: Harmonics Tab

Option	Description
Monitor IEEE 519 Point of Common Coupling	EasyPower can monitor whether or not the IEEE 519 guideline for harmonics is met at the point of common coupling. If selected, then the Harmonics Report indicates when this guideline is not being met.
kVA Demand	The kVA Demand.
PCC Isc/Load	The ratio of short circuit current to load current at the point of common coupling.

Option

Description

Monitor IEEE 519 Point of Common Coupling

EasyPower can monitor whether or not the IEEE 519 guideline for harmonics is met at the point of common coupling.

If selected, then the Harmonics Report indicates when this guideline is not being met.

kVA Demand

The kVA Demand.

PCC Isc/Load

The ratio of short circuit current to load current at the point of common coupling.

This tab is read-only and appears only if you have imported data from an SKM Data Format file. See Importing an SKM Format File for more information.

See Comments for information.

See Hyperlinks for information.


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EasyPower, LLC

7730 SW Mohawk St.

Tualatin, OR 97062

(503)655-5059

EasyPower Version 9.7

Help was last updated on 2/8/2016