Rostec tests Ka-52k helicopters in marine conditions Rostec Ka-52K helicopters complete the first phase of testing in marine conditions. By Rostec - 05 May 2017 Read >> A New 'Lingua Franca' for Underwater, Networked Communications NATO underwater communications standard for data exchange between...
The ELK-3 compact, 420 kV GIS fea- tures a new, single-interrupter puffer breaker with an excellent two-cycle per- formance at 63 kA/60 Hz and plenty of reserve for short-line faults and other duties. The ELK-3 compact circuit breaker uses just one interrupter where two interrupter...
innovations To permit the shunt to per- form correctly under short-cir- cuit conditions (100 kA for 6 Transient shunt temperature rise with different thermal time constants at an overload six times the rated current, 6 I n (τ2>τ1) cerned how to guarantee the adequate insulation level. ...
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1 interrupter ELK-5 UHV GIS development project To design and install this 1,100 kV GIS, ABB and Xian Shiky, the biggest Chinese supplier of GIS, established a joint development project called "ELK-5" (ELK is the name of ABB's GIS systems; 5 indicates the new per- formance level)....