Answer / datta

a smaller one , cause it has less area and resistance is
calculated by ,
r=(rho)*length/area

Answer / venkatesh

smaller one

1) name the communication cable and how it is communicate in between plc to modbus , plc with hmi? 2)name of the communication cables?

1 Answers  

---

if 20 hp motor starts directly stars and contenious run . what will be the effect.

11 Answers   HP, Ohsung Electronics,

---

Explain REF protection and sbef protection in transformer?

3 Answers  

---

what will happen if secondary of potential transformer (220kv/110volt) of any metering core or protection core (cables) of any phase got earthed??

1 Answers  

---

What is difference between dc three point starter and dc four point starter?

3 Answers   Chettinad,

---

---

What is the Working principle of ELCB and RCCB?

1 Answers   Geo Miler, L&T,

---

what is the difference between Current transformer & Capacitive voltage transformer

2 Answers   ABB,

---

what should be the resistance between two winding. Let 10 kw motor

3 Answers  

---

mounting of bucholz relay engle on transformer

4 Answers  

---

a distribution transformer(3 phase)supplying 440volt per phase.now suppose one of phase voltage(230volt) becomes zero.what will be the cause ?

3 Answers  

---

what is the type of starter used in tube light?

2 Answers  

---

You are given 220 V supply source, four wires, an ammeter and voltmeter. There is no any indication or description on meters. How will you identify which is ammeter or voltmeter?

7 Answers   ABB,

---