Answer / m tashfeen abbasi

UPS calculate in watt and battery calculate in AH(ampere hour)

Answer / aamirali

we can use this formula: Max Amp= (KVA rating)/ (kv*1.73)
for three phase supply.

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?

0 Answers  

---

what is slip ring startor

1 Answers  

---

What is the difference between LT CT & HT CT?Can we use indoor type transformer as an outdoor type or vice versa?

2 Answers   Bhel,

---

how do i work out the Amps of a incommer if i am running 1 37 KW motor and a 0,75 KW motor and some solinoids

0 Answers  

---

how will u exactly calculate the unit consumption of the Air conditioners?Split/Window/

3 Answers  

---

---

What should be the dielectric strenght value of transformer oil of 11/0.433KV distribution transformer and 33/11KV tranmission transformer ?

2 Answers  

---

What does impedance in the windings of transformer signify.

2 Answers   Johnson Controls,

---

DERIVE AN EXPREION FOR MAXIMUM POER TRANSMISSION, WHAT ARE ITS APPLICATIONS.

0 Answers  

---

What are all the conditions to protect generator & turbine in thermal power plant?

1 Answers   Power Grid,

---

Why we make earth connection with Transformer Body and What will be the minimum size of copper wire as per code with respect to KVA rating of Transformer?

0 Answers  

---

3phase motor 400v (induction) A.C 4kw company design 1400rpm but our requirement 2000rpm possible? attached any instrument. reply fast! contact 03343262442

3 Answers  

---

what is different between DIGITAL and ANALOG?

3 Answers  

---