Answer / a.p.nanjappa

it is the contractor rating .
Refer to IEC standards as mention in the catalogs.
It is the recommendation of electrical standard to select
the device rating,type.

What are the components of feedback control system?

0 Answers  

---

ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?

0 Answers  

---

what are the main hormonics in ac?

1 Answers  

---

What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

0 Answers   Eprosys Engineering Consultants,

---

why the undervoltage relay's interlock is used in earthswitch closing operation of the 400kV line scheme?

2 Answers  

---

what is the difference between squirrel cage & slip ring induction motor by construction & working principle ?

1 Answers   Sail,

---

may anybody tell me the names of institute where plc programing course are conducted

1 Answers  

---

why does connected a indutor with mnsformeretering core of current transformer ?

0 Answers  

---

The Source internal resitanse Rs , When equal to Load resistance RL, the maximum transfered is of _____ % of input power?

2 Answers  

---

what is the principle of the single phase energy meter? and,what is the advantages and disadvantages of single phase energy meter?

0 Answers  

---

how to identify the direction flow of electrons in a conductor? if i want to check the sequence in kv lines, is any device is available?

3 Answers  

---

IN star -delta motors normally first operated in star mode {absulated given (r-y-b) phases after one miute change in delta mode in this case i am change phase sequience for example R -PHASE TO CHANGE Y-PHASE ;Y-PHASE TO CHANGE R-PHASE SO THIS TIME MOTOR WILL HAPPEN RUNNIG MODE EIGHTER(OR) STOP MODE(TRIP MODE)

6 Answers   MacLellan,

---