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What is self exciting?
how to identify conection leads of an unknown electric motor
What are the advantages and disadvantages of closed-loop control system?
The knee point of a current transformer is normally unique and known.So why in the nameplate of a CT they put the minimum value like this Vk> 400v.
what is the standard duration after failure EB power
what is the max. acceptable leakage current in 33kv bus bar
How is the gain affected by the introduction of feedback in a control system.
What is knee point voltage?
Why are iron cores in transformers made laminated?
what are the 4 rules to start the motor?
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
What do you mean by lighting transformer?
Why we cant store an ac power. If we coo store in which device we can?
What Should be the value of Vector Surge angle at Tripping and how to calculate it?
for what purpose the star point is done in ct
