Interested to Buy Any Domain ? << Click Here >> for more details...
which type your UPS on line,off line give the reason?
- 2 Answers
- 4457 Views
- Roto Power, I also Faced
- E-Mail Answers
Answer Posted / pankaj rathi
In online ups Battery circuits remains allways in line i.e. UPS is connected to load through battery bank. But in ofline ups battery ckt remains as a standby .whenever the supply get cut then ups take the load through battery system.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
WHY RATING OF VCB NOT LESS THAN 630A
when generator short circuit condition, the current how dissipates. or at short circuit voltage not available then current how can flow?
As we use capacitor bank in 3ph ckt to improve PF, can we use capacitor in single ph domestric use, in house we have Fan,Mixer,electric cooker,iron,tube choke they also lag the system,because it is inductive load. if it is possible to improve PF of single ph system-- if yes- type of capacitor to be used,connection diagram, working in detail. if no-- list it.
what is the string efficiency
what is difference between 9kv 5ka surge arrester and 9kv 10ka surge arrester.
Dg pf .71 i am improve pf 0.80 what capacitor connected in dg how?
Why we are going for converter transformers for DC drives application instead of distribution transformer?
I have motor 1500 HP and , 4160 V , 60 HZ , then i need the rating of transformer which can feed that motor ??
What is the general power consumption rating of CPU CRT type and Flat type, Monitor,Printer, projector, Scanner?
how can i determine the KVA/MVA rating of transformer precisely?? is there any standard test?????
Differentiate between low pass, high pass and band pass filter?
Which type of a.c motor is used in the fan (ceiling fan, exhaust fan, pedestal fan, bracket fan etc) which are find in the houses ?
1. What is differential relay? How it operates? 2.How to calculate the Short Circuit Impedance in Transformer? 3.What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works? 4. While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply? 5. What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer? 6. Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example? 7. Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient? 8. What should be the minimum and maximum ohmic value for earthing? 9. Why DC Currents are not used in transformer? 10. What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?
The slip during plugging operation is given by= A 1-s B 2+s C 1+s D 2-s
What is a dc motor?
