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
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 |
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 |
hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar
what is the excess air in furnace
i need project topics along with circuit diagram in the electrical and electronics engg and also some websites regarding projets.
what is cogging in motors?
what would be the earth to neutral voltage in industries? if it is not main Taine then what will happen?
what happen if rotor earth fault in AVR system?
What is the formula for finding fault level of generator?
what is the function of anti-pumping in circuit breaker?
20 Answers Aditya Birla, INEL, NCC,
What is the suitable rating of MCB used for 1.5 Ton A.C & why?
what is ring main unit?
ALL HT /LT PANEL TEST? DISCRIPTION.
IF we have three 30KW motor, these motors are connected in DOL, star-delta and VFD respectively, what will be the fuse rating for the above three?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)