Explain the working principle of variable frequency drive?

0 Answers   ABB,

---

Can I route 110 VDC and 24 VDC in a same Duct for our Interposing relay cabinet? IF yes or NO Please provide me IEEE Std. for the same. Please i required it on Urgent basis, i need to design IRP Cabinets and we have MCC 110VDC and Our Coil side is 24VDC, Please help as soon as possible.

0 Answers   Yokogawa,

---

can u briefly explain aboutan aryton shunt multirange DC ammeter?

0 Answers  

---

what is the difference between the microcontroller and PLC?

9 Answers   HAL, Havells,

---

How to Calibrate variable Head flowmeter (Orifice), here we dont know High pressure and low pressure then how to apply pressure on HP and LP side ?

1 Answers   Nirma,

---

Hai friends I have dought for O2 analyser how to working in boiler area. And what is the basic principles

2 Answers   Enmas,

---

What is difference between radial vibration and axial vibration explain in detail .

0 Answers   Emerson,

---

My question may be very basic or childish but this question still persists in me, someone plz help me 1.why do we go for differential equations to analyze a system? 2.why do we solve it using matrices, is there any specific reason for using matrices other than the stories like it is simple,faster etc.

2 Answers  

---

what is the principal of operatio of dc motor

1 Answers  

---

how to define range of dp level xmeter in open tank

1 Answers  

---

If you SOURCE your outputs from a PLC, would you have to make the output HIGH, or LOW, in order to switch an output ON?

1 Answers  

---

what is difference between modbus & fieldbus

1 Answers   ABB,

---