How are primary windings connected?
What will be an ideal response?
The high-voltage primary windings are connected in a closed-delta arrangement. H1 is assumed to be the beginning of each high-voltage winding and H2 is assumed to be the end. The end (H2) of each primary winding is connected to the beginning (H1) of the next primary winding to form a series arrangement. One three-phase line wire is connected to each junction of two windings. In other words, the primary winding of each transformer is connected directly across the line voltage. Each of the three line voltages is 2400 V and the primary winding of each transformer is correctly rated at 2400 V. Once the high-voltage primary connections are made, the three-phase 2400-V input may be energized and tested for the correct phase rotation.
You might also like to view...
The ____ system is used to provide automatic signals to signal the beginning and ending of shifts, lunch periods, and breaks.
A. master clock B. program C. fire alarm D. atomic clock
Grounds maintenance employees will make major repairs to buildings, mow lawns, or spray ornamental plants
Indicate whether the statement is true or false
To phase shift an SCR, the gate circuit must be unlocked, or separated, from the anode circuit.
Answer the following statement true (T) or false (F)
A precision voltage source can be created by driving the drain of a MOSFET. Figure P11.22 shows a circuit that will accomplish this function. With IRef = 0.01 A, determine the output VG. Let K = 0.006 A/V2 and Vt = 1.5 V.
