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 |
In a Impedance Based Distance Relay (Quad Characteristics) - Could there be two different Line Angle(RCA) for Ph-Ph & Ph-Gnd? If So Kindly Let me Know.. Where, What are the advantages of the same?
How to take vector group test of a transformer? Suppose we dont know the vector group of transformer, how to check its vector group through test? I have 3 transformer DYn11 & DYno& Ynd11, how to confirm its vector group?
Is current shock due to voltage or current? pls answer
How many current ratings of MCB's are in the market? e.g: 1A, 2A, .......upto.
can anybody send me syllabus of rrb section engg (electrical). and also send previous question pepar...
How to test Power Transfomer vector group in the field?
nwhat are the main Components of servo motor?
what is the purpose of vector group in a transformer ? if 2 tranaformers r connected in parallel the vector group is same or not? for parallel operation 2 transformers of different manufacturers maintain same vector group or not?
What is auto changeover and how it works plz write details.
What shall be the minimum distance to be maintained between two power cable in a common trench?
What is the phase relationship between the primary and secondary voltages of a transformer?
how calculate cable size in squre mm, when the load is given by in kw? do u have current rating chart of elctrical cables?