Answer / vensa

ups means uninterrupted power supply which means it supplies
the power continuously when the supply fails without
interrupting the power
Inverter mean which converters the ac to dc supply to ac
supply.

Answer / senthil nathan

Inverter will convert dc into ac supply.
But ups get a ac supply convert it into dc and store it in
a back up battery, and then dc is converted into ac supply
and then suppllied to cpu.

Answer / p.k.ghosh

In UPS & inverter both are used for made D/C to A/C . In
inverter there is no PWM & we gets only quasi sine
wave .Where as in UPS there are PWM and we gets Sine wave.
For computer & other sofisticated devices required true
Sine wave hence UPS used & for lightning & other less
sofisticated equipments, inverter are used where required
only varing wave form which may not be true sine wave or
have quasi sine wave.

Answer / m.kumar

ups means any raw power supply is gone that time time used
for ups inverter is ac/dc function so used directly in
house .inverter capacity low and cost low.

Answer / p.k.ghosh

In UPS & inverter both are used for made D/C to A/C . In
inverter there is no PWM & we gets only quasi sine
wave .Where as in UPS there are PWM and we gets Sine wave.
For computer & other sofisticated devices required true
Sine wave hence UPS used & for lightning & other less
sofisticated equipment required only varing wave form which
may not be true sine wave or have quasi sine wave used.

why 120 devided with pole and speed multiplication to determine frequency

1 Answers  

---

In EB metering we face problem kva jump even in no load condition.can any one help to control this

0 Answers  

---

please explain to me how to calculate current,voltage,resistance with formula??

0 Answers  

---

Do you know the overhauling of a motor?

12 Answers   EdCET, Mecon,

---

trasnfarmaer core make

0 Answers   MPSEB,

---

---

what is the distance between two overhead lines

1 Answers   Aurobindo,

---

transmisssion type

0 Answers  

---

WHERE IS THE LIGHTING ARRESTER SHOULD BE PLACED IN DISTRIBUTION LINES?

6 Answers   Bhel,

---

CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??

0 Answers  

---

why we are grounding the neutral?

1 Answers   GE,

---

what is allowable current flows from phase to ground with out tripping the breaker

1 Answers  

---

Form fator is the ratio of?

5 Answers  

---