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Path 27, also called the Intermountain [c] or the Southern Transmission System (STS), [4] [5] [6] is a high-voltage direct current (HVDC) electrical transmission line running from the coal-fired Intermountain Power Plant near Delta, Utah, to the Adelanto Converter Station at Adelanto, California, in the Southwestern United States.
When line commutated converters are used, the converter station will require between 40% and 60% of its power rating as reactive power. This can be provided by banks of switched capacitors or by synchronous condensers , or if a suitable power generating station is located close to the static inverter plant, the generators in the power station.
Single-phase (two-wire) lines coming out of a converter plant Main article: Electric power transmission In Germany (except Mecklenburg-Western Pomerania and Saxony-Anhalt ), Austria and Switzerland, there is a separate single-phase power distribution grid for railway power at 16.7 Hz ; the voltage is 110 kV in Germany and Austria and 132 kV in ...
Line-commutated converter (HVDC classic) are made with electronic switches that can only be turned on. Voltage-sourced converters are made with switching devices that can be turned both on and off. Line-commutated converters (LCC) used mercury-arc valves until the 1970s, [6] or thyristors from the 1970s to the present day
Bipole 3 has a ground electrode site near the Keewatinoow Converter Station at connected by a 30 km electrode At the southern Riel Converter Station, the electrode line runs about 26 km to a grounding electrode site at 49°56′12″N 96°43′01″W / 49.93667°N 96.71694°W / 49.93667; -96.71694 ( Hazelridge Ground Electrode ...
Although AC line voltage is commonly referred to by its RMS value, such as 120 V or 240 V, the peak voltage of the sine wave is around ±170 V for 120 V RMS and ±339 V for 240 V RMS. Additionally, 120 V and 240 V are considered nominal voltages; the actual voltage provided by a utility may be somewhat higher or lower during normal operation.
A low line regulation is always preferred. In practice, a well regulated power supply should have a line regulation of at most 0.1%. [1] In the regulator device datasheets the line regulation is expressed as percent change in output with respect to change in input per volt of the output. Mathematically it is expressed as:
Chopper circuits are used in multiple applications, including: Switched mode power supplies, including DC to DC converters.; Speed controllers for DC motors; Driving brushless DC torque motors or stepper motors in actuators