Marine Electrotechnology. Test 6
Marine Electrotechnology. Test 6
In this drawing, the triangle marked 'A' represents _____
Alternator (A) 100 kVA runs parallel with alternator (B) 125 kVA, both are 3 phase, 240 V, 60 Hz. The load of A is 60 kW, 90% power factor and the load of B is 80 kW, 70 % power factor. What is the total load ?
What control equipment drawing is shown here ?
The second potentiometer of this electric command system is located in the steering gear. What moves this potentiometer ?
How is the differentiating action of this PID controller obtained ?
In these integrator circuits the air flow through the restrictor and the current through the resistance _____
What is the difference in function between these electrical and the pneumatic integrators ?
From the sample diagrams shown, choose the correct voltage waveform measured across the load.
A six-pole asynchronous motor is connected to a power supply with a frequency of 50 Hz. If the rotor bar frequency is 2.3 Hz, what will be the speed of the motor ?
Two 3 phase 4160 Volt, 60 Hz alternators are operated in parallel. The total load of the system is 1050 kW with power factor 0.75 lagging. If alternator No 1 is carrying 700 kW at 80 % power factor lagging _____
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