http://www.fullfill-eng.com
สร้างเว็บไซต์Engine by iGetWeb.com 
 Home  Aboutus  Job Reference  Test Equipment  Working  Contactus
Search  Type   Cart Order (0) 
Member
Username
Password


Forgot Password
Register
Menu
Home
Aboutus
Job Reference
Test Equipment
Working
Contactus
STAT
Open 10/09/2008
Update 19/10/2016
Unique Session373,820
Page Views447,395
Total Product 2
Link
All Partners
1

1

1


www.hotmail.com

www.yahoo.com

www.gmail.com


Aboutus

Protective Relaying

Perform scheduled preventive maintenance in the field on protective relaying. Below are items on the recommended standard maintenance schedule for protective relays. Inspect relays for physical damage; inspect cover glass, cover gasket, presence of foreign material and moisture, condition of spiral spring, disc clearance, contacts and case grounds.
  • Check mechanically for freedom of movement, proper travel and alignment, and tightness of mounting hardware and tap plugs.
  • Test pick-up parameters on each operating element.
  • Perform timing test at three points on time dial curve.
  • Perform pick-up test on target and seal-in units.
  • Perform special tests as required to check operation of restraint, directional and other elements per manufacturer's instruction manual.
Electrical and mechanical connections will be checked, and the relays will be cleaned. Adjustments and minor repairs will be performed, as necessary.

 
« March 2019»
SMTWTFS
     12
3456789
10111213141516
17181920212223
24252627282930
31      
 Home  Aboutus  Job Reference  Test Equipment  Working
view