Answer Posted / sam
DARThe is The ratio of a 60 s reading to a 30 s reading
this ratio of time-resistance readings can be used to
indicatethe condition of the insulation system.
DAR = Recsistance 60 sec / Resistance 30 sec
Goog Insulation DAR more than 1.25
| Is This Answer Correct ? | 9 Yes | 9 No |
Post New Answer View All Answers
What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?
what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors
There is air in a room . the top and bottom of the room are at constant temp. T1 and T2. DRAW THE temp profiles if a. T1 greater than T2 b. T1 less than T2
if we give 60 hz single phase supply to the transformer used in europe , than what will happen
What is a signal flow graph?
What is voltage divider rule?
Types of test in Switchgears, MCC, NGR and DB's how it should be procced. Can anyone give me the details here or email me to pasuvaraj.k@gmail.com
where can the transformer having vector group Yny0 be used??
How to size fuse? How to size MCB?
What is fault clearing time for Current Limiting Moulded Case Circuit Breaker?.
HOW WE CALCULATE CURRENT IF THERE ARE NOT PRESENT ANY AMMETER OR MULTIMMETER??????
What do you understand by oldham's coupling ?
What type of a DC motor would you use for a lift?
What is a difference between indoor transformer and outdoor transformer of same rating
is it possible to have dc motors on single chip
