Webkpp: First-pole-to-clear factor. kaf: Amplitude factor. u 1: 4-parameter envelope only. Value of the withstand voltage of the circuit breaker at time t 1 after the commencement of breaker opening. u c: Maximum value of the withstand voltage of the circuit breaker. Reached at t 2 for 4-parameter envelopes and at t 3 WebCircuit Breaker Rating 245 kV 1 General a. Name of the Manufacturer Crompton Greaves Ltd b. Country of Manufacture India c. Type of Circuit Breaker SF6 Out Door ... First pole to clear factor 1.3 i. Short time current rating (kA) for 1 Sec. 50 kA j. Rated operating duty O-0.3sec-CO-3min-CO k. Maximum breaking capacity under kilometric faults ...
What is the meaning of first-pole-to-clear-factor of a sf6 circuit ...
WebFirst pole to clear factor Lighting impulse withstanding voltage Among he following i have many queries related to first pole to clear factor and line charging breaking current. The... WebThe time to the U R(peak), t p, is about 70ps for the first phase to clear in an indoor, cable connected, three-phase, ungrounded 15kV system at its full (100%) short circuit current. … daddy long legs 2015 movie subtitles
(Solved) - First pole to clear factor-Circuit breakers. First pole to ...
WebMay 9, 2024 · First Pole to Clear Factor- Calculation & Significance. March 23, 2024 by admin. First Pole to Clear Factor of a Circuit Breaker is the ratio of power frequency recovery voltage across the first pole to clear the arc to the normal phase to ground voltage when all the three poles of breaker are open. It is denoted as kpp. WebWhat is “First - Pole - to - Clear - Fault - Factor “ and why it is 1.5 pu for “Terminal Faults” in non solidly grounded systems ? “Electrical “… 11 comments on LinkedIn WebFrom the results of case 1-2 and 2-1, first pole-to-clear factor of the network is confirmed as shown in Table3. First pole-to-clear factor is derived from steady state voltage at single line open condition. Table 3 first pole-to-clear factor Case1-2(with ∆ ) Case2-2(without ∆) Steady state voltage first-pole-to-clear factor 902kVp binox weapons