Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision | |||
| electrical_engineering_2:polyphase_networks [2025/06/24 00:38] – mexleadmin | electrical_engineering_2:polyphase_networks [2025/06/24 00:40] (current) – mexleadmin | ||
|---|---|---|---|
| Line 1355: | Line 1355: | ||
| A three-phase heater with given resistors is connected to the $230~\rm V$/$400~\rm V$ three-phase system. The heater shows purely ohmic behavior and can be configured in wye or delta configuration. \\ | A three-phase heater with given resistors is connected to the $230~\rm V$/$400~\rm V$ three-phase system. The heater shows purely ohmic behavior and can be configured in wye or delta configuration. \\ | ||
| - | 1. The heater is configured in a delta configuration and provides a constant heating power of $6 ~\rm kW$. | + | 1. The heater is configured in a delta configuration and provides a constant heating power of $6 ~\rm kW$. \\ |
| - | 1.a Calculate the resistor value of a single string in the heater | + | 1.a Calculate the resistor value of a single string in the heater. \\ |
| - | 1.b Calculate the RMS values of the string currents and phase currents. | + | 1.b Calculate the RMS values of the string currents and phase currents. |
| # | # | ||
| Line 1402: | Line 1402: | ||
| # | # | ||
| - | 2. The heater with the same resistors as in 1. is now configured in a wye configuration. | + | 2. The heater with the same resistors as in 1. is now configured in a wye configuration. |
| - | 2.a Calculate the RMS values of the string currents and phase currents. | + | 2.a Calculate the RMS values of the string currents and phase currents. |
| - | 2.b Compare the heating power in delta configuration (1.) and wye configuration (2.) | + | 2.b Compare the heating power in delta configuration (1.) and wye configuration (2.) \\ |
| # | # | ||