Answer / aswin

The basic difference in layman's terms is:

While both provide backup power during mains outage, with the UPS the switch is instantaneous whereas with the Inverter there is a gap of a second or two. This gap is OK for household gadgets such as lights, fans, fridge, etc. but not OK for computers.

In technical terms:

UPS: The mains power comes to the UPS. The AC is converted to DC and this DC is constantly charging the battery. The output of the battery is fed to the Sine wave inverter and it converts DC to AC and this feeds the equipment. Since power out is always drawn from the battery, there is no time lag when mains swicthes off; it justs stops the battery from being charged and the UPS continues to supply power till the battery runs out.

Inverter: The mains power comes to the Inverter. This is directly sent to the output but the AC is also converted to DC and this DC is constantly charging the battery. A sensor and relay mechanism checks whether the mains is ON or OFF. When the main switches OFF, the relay actuator triggers to switch from mains to inverter. Rest is same like the UPS. Because of this sensor and relay, there is a gap between triggering.

UPS involves more costly circuitary and is therefor more expensive to make and sell.

Explain cmrr?

0 Answers  

---

why the pressure coil is not present in the three phase wattmeter?

1 Answers  

---

why generator efficiency is more in swinburnes test?

0 Answers  

---

Why 4 pole generator generates more power and 6 pole generates less power campare to 4 pole

2 Answers   Julius Berger, Suzlon,

---

What are applications of Shunt release?

2 Answers   Techno Electric and Engineering,

---

What happens if fuse is connected to neutral wire

9 Answers   HAL,

---

why celing fan is running in anti clock wise and table fan is running in clock wised?

5 Answers  

---

can you check the current and voltage of a 12 V battery by a digital multimeter in this fashion that apply the digital multimeter across the battery terminals directly ? say yes or no ... i sais yes ........... is this true or false ? plzz tell me and also explain ........ plzz thanks

4 Answers  

---

What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?

0 Answers  

---

how to calculate the size of the HT cable

0 Answers  

---

How works the AVR in DG Sets Plz explain??????????

1 Answers  

---

when ur using single phase type of load for a 3.5core power cable .Why neutral is .5 and how much current in the neutral if we consider neutral as a reverse path for three phases.

2 Answers  

---