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What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines
1745What kind of Neutral CT can be placed in 11/0.433KV transformer to be used and what are its specification?
1851Dear all,recently in our plant we installed a conveyor for this the motor ratings are 5 hp and Amps 7.39.Due to on urgent starting of conveyor we fix the DOL starter with range of 9-15 amps.give me suggestion regarding on this issue
1 2337I am experienced with house and industrial wiring but I don't have any licence how can I apply an licence and which type of licence i can get i didn't complete deee just only experience
1590what happend to DC shunt motor if its field winding insulation becomes slightly weak? will that motor can run on full load or not explain in detail. thanks
PCL,
1614before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water
1630what is a speed of rotor when we give supply to stator of 50hz and as well as rotor of 60hz of an induction motor?????
1604Post New Electrical Engineering Questions
how we can explain arc heatng?
HOW TO WORK A VFD?SAY SIMPLE METHOD
The metal-enclosed switchgear and controlgear is subdivided into three types: 1. metal-clad switchgear and controlgear; 2. compartmented switchgear and controlgear 3. cubicle switchgear and controlgear. What is the main differnence between them. State some example.
how net resistance islow in star connection and viseversa in delta connection...? if anybody could explain in detail it wud be helpful.
whether fibre optic cable in high voltage earth conductor is used for protection circuits
Explain few advantages of electric traction system?
Please tell me the formulaes while designing a substation for power Calculations in designing a 33 KV Substation?????
Either It Possible a dc Motor to Run On Ac Drive [ Ex : ACS 800 , Yaskawa F7 ] If it is Possible How Pls Inform Me dinesh_elect_eng@yahoo.com
what is 400kv doble circuit quadpole tower?
how desiel generate sart fail of eb?
A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.
Whether amorphous core transformer is available in India?.If available then up to what rating of voltage and KVA?.
What is the role of feedback in a closed loop control system?
Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.
1.what is difference between ATS & STS main use. 2.what is difference between ACB& VCB With symobles,and main partes, manimum range. 3.How many types of relays and main function.
