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if the syncronous machine run at leading pf and as its field curret increased its armature current decreased is machine operate as generator or motor?
1 3581Can we use a Potential Transformer for Auxilliary Power supply( Spring charge Motor, Lighting etc)?
1 3668Post New Electrical Engineering Questions
i want to model paper for section engg.
what will happens if one phase is missing for 33/11kv power transfomer and why?
Why do we need interlocking in a HT metering or Ring main unit switchgear?
why impudance relay used for medium transmission power system? why not others?
v/f drive basic princeple
What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva
What are the types of power in electrical power?
what is meant by poly phase induction motor ? how its operating by single phase or three phase?
Why human body feel electric shock?
Why control of DC motor is simpler?
Define what is power quality meter ?
Explain the propagation of harmonics in the network and influence of phase angle of harmonics.
How to calculate fault level of 11 KV system
what is motor capacity of 80TR chiller? and also say what is the formula related temperature, motor capacity, TR?
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?
