https://m.facebook.com/story.php?story_fbid=10158617516484036&id=841984035
Professional Electrical Technician (နည္းပညာ)
Free Online Learning Training (လွ်ပ္စစ္ပညာ)
Thursday, September 3, 2020
Thursday, October 24, 2013
(44) Fuse protection
Fuse protection
Fuse (quick-acting နွင့္
time lag) နွင့္ automatic cut-outs မ်ားသည္ mains ကိုoverload
မွကာကြယ္ရန္နွင့္
short circuit ၿဖစ္ပါကလွ်င္ၿမန္စြာၿဖတ္ေတာက္ေပးရန္ၿပဳလုပ္ထားသည္
လွ်င္ၿမန္စြာၿဖတ္ေတာက္ေပးေသာ
quick-acting fuse မ်ားသည္ rated current ၏ 2.5 ဆ
(breaking current)ကို
1secအတြင္းၿဖတ္ေတာက္ေပးသည္
Labels:
ELECTRICAL INSTALLATION
(43) system unit chart
Labels:
ELECTRICAL INSTALLATION
Saturday, October 5, 2013
(42) Ringing Circuit (6)
Ringing Circuit (6)
အိမ္တလံုး၏ ringing system , T1 သည္ B2 (or) B3 ကိုၿမည္ေစသည္ S1 two way သည္ B2 နွင့္ B3 ကိုခ်ိန္းနိဳင္သည္
T2, T3, T4, T5, T6, သည္ B1 ကိုၿမည္ေစ၏
Labels:
ELECTRICAL INSTALLATION
Subscribe to:
Posts (Atom)