Answer Posted / sanat ullah khan

Answer
# 1 it depond upon the output load

Thanks for Marking this Answer 0 Krish
Answer
# 2 its depend on current of the load which connected to
the battery amphere per hour if a battery having 10AH it
can give 10A load upto a hour

Thanks for Marking this Answer 0 Karthik Raman.b
Answer
# 3 Hi Krishna,

V HV AN 65AH 32 No's of Batteries connected 60kva UPS,

What will be the full load backup time???

Thanks for Marking this Answer
Answer
# 4 First you must know the ampere-hour of your battery
bank as
per the manufacture's specification.Now discharge the
batteries as per the C5 rating( for Ni-Cd batteries) or C10
rating (for Lead -acid Batteries).Discharging can be done
by connecting the positive and negative terminals of
batteries to the copper plates and immersing in a salt
solution, which will act as a load. The distance between
the plates can be adjusted to set the discharge current.
Measure the amount of discharge current and time till the
battery voltage of each battery in a bank drops to 1 Volt
if it is a 1.4 volt cell. Now multiply the discharge
current and time. This is the measure of the Amperehour
capacity of the bank.If the Amppere -hour capacity as per
the manufacture is available then you can determine the
percentage capacity of your bank at present.Remember that
charging and discharging of battery bank improves the
health of the battery bank.However, for lead -acid
batteries these cycles are around 750 or say 3 years. For
Ni-Cd batteries the life is around 25years or more if
maintained properly.Selecting a overated battery is also
not adviseable as it won't get discharged completely and
this may result in sulfation of batteries and early death
of battery bank.

Thanks for Marking this Answer 0 Avinash

In vapour absorption refrigeration machine fluids used are

1165

---

what is the responsibility of C license holder in industry?

9103

---

i want design of D.C.MOTOR 1HP 960RPM AND 2HP 960RPM ITS URRGENT

1891

---

A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Calculate number of pole pairs. A 1 B 6 C 2 D 3

1966

---

what is the effect of earth on capacitance in 3-phase and 1- phase transmission line?

2307

---

A cotter joint is generally used to transmit

1185

---

ACB & VCB how do work and saftes and how can maintenance in this and parts name show with picture

2044

---

What is the different types of cable & current capacity of cable

1882

---

why the protection turbo generators is most complex?

1972

---

How I can Compare 120v/60Hz versus 220v/50Hz ? Please tell me both advantage and disadvantage ......

1965

---

What is the end effect of linear induction motor ??

1956

---

Why do you have to use Protecion relay with the function MTB ( Mechanical Trip Button ) for electrical system.

2139

---

What is resistance reading of earth copper rod with grid and without grid?

1092

---

Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?

1741

---

For overhead protection we use which transformer?

2416

---