What is the similarity and what is the difference between relays and PLC?

3 Answers   NTPC,

---

54 Comments Alok and Bhanu play the following min-max game. Given the expression N = 38 + X*(Y – Z) where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be?

0 Answers   Bajaj, TCS,

---

Hi Recently I got one formula that is Impedence of Xformer = Rated KVA/Root 3 * secondry voltage OF Xformer. Is it Right??????

2 Answers  

---

freuency meter

1 Answers  

---

What will be the current after disconecting the bus bar or cable before discharging ?

2 Answers   Sodexo,

---

How to calculate ant test the burden of Current transformer

0 Answers   NTPC,

---

what is the maximum load sutiable from earth to phase and what is the max voltage earth to phase suitable

1 Answers  

---

in three 3.5 core aluminium ug cable. one cable is used for one phase by shrting R,Y and B wires and other 2 cables used for Y and b phases. balace 3 neutral wires are made common and connected to load. suddenly neutral current was more than line current what is the reason behind this?

1 Answers   DLF,

---

Earth is a conductor or load?then ammeter connect to 3- phase supply,it shows the measurents or not?

0 Answers   UltraTech,

---

WILL SCHNEIDER MAKE ACB(MASTERPACT)TRIP ON REVERSE POWER?

0 Answers   Schneider,

---

why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?

0 Answers  

---

How to test and satisfy the conditions of the vector group YNd1 for power transformer?

1 Answers   Areva,

---