How to check the specific gravity of the two 12 V batteries
connected in series to a 24 V UPS and inverter ?
will we have to disconnect all the connections and turn off
the UPS and inverter or not ?
will we have to check specific gravities in each cell of
the two batteries ?
what is the name of the instrument that is used to check
the specific gravity and whats the procedure to check the
specific gravity with it ?

thanks

Answers were Sorted based on User's Feedback



How to check the specific gravity of the two 12 V batteries connected in series to a 24 V UPS and ..

Answer / hemant nimbalkar

There is no need to turn off the ups or remove the
connection.We can check spec. gravity at the time of
battery charging.Spec.gravity is checked by hydrometer.Just
immersed the the hydrometer in each cell which have to
mesure.Press the rubber handle &take some electrolyte and
mesure sp. gravity. the value should be 1200-1250.

Is This Answer Correct ?    10 Yes 1 No

How to check the specific gravity of the two 12 V batteries connected in series to a 24 V UPS and ..

Answer / neeraj katoch

first the accurate specfic garvity is 1280 which means
batteries is fully charge and below 1180 means batteries is
dead
hydro metre is used for mearsuing specfic gravity
ok this is the right answer

Is This Answer Correct ?    5 Yes 1 No

Post New Answer

More Electrical Engineering Interview Questions

how will calculate the winding ohmic value in 3phase motors in h.p wise? ex.10 h.p motor winding value ph to ph ? 5 h.p motor any calculation please send me.

1 Answers   Hyundai,


why it is necessary to short and ground of a current transformer secondary side?

6 Answers   Ambuja,


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

0 Answers   DT Technologies,


Hi guys! Plz help me to answer the following questions. 1. What are the types of transmission line energy losses? 2. Why are the VLF are used some types of services? 3. What frequencies are used for reliable beyond the horizon terrestrial communication without repeaters? 4. To permit selection of 1 out 16 equi-probable, what is the number of bitis required? 5. What is the most common modulation used for telegraphy? 6. What is the multiplexing is used to increase the capacity of the optic fiber? Thanks

0 Answers  


In a distribution system,having 3phases & 1 nuetral.ecah phase to neutral is 230V,line-line voltage is 440V,but what is the voltage of each line.but it should obey the KVL law.

2 Answers  






Difference between On Line capacitor and Station Type capacitor.

0 Answers  


When VFD is connected to a 3 phase main supply there is load current difference between incomer to VFD and outgoing from VFD.

1 Answers   Shasun Chemicals,


why do we lay up the core of a cable?

0 Answers  


How does a television work?

0 Answers   Siemens,


Difference between KW & kVA

7 Answers  


What is proportional controller?

0 Answers  


IS there any mechanical connection between the field winding and armature winding of a dc generator?

11 Answers   IOCL,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)