The Tooling in Ukraine of Model Tests of Objects of Energy, Aviation and Space-Rocket Engineering on Resistibility to Action of Pulsed Current of Artificial Lightning

Results of Investigations of Thermal Resistibility of Prototypes of Aluminum Alloy Panels of Fuel Tank of Airplane to Direct Action of Normalized Components of Artificial Lightning Current

“…2. [5,6]. It can be seen that in the discharge circuit of the LCG used, the active resistance R S =0.158 m of the low-resistance measuring shunt of the ShK-300M1 type, which passed the state metrological certification at the State Enterprise «Kharkiv Standard Metrology» (certificate of verification of measuring equipment No.…”

“…Currently, in Ukraine and Eastern Europe countries, only the Scientific-&-Research Planning-&-Design Institute «Molniya» of the National Technical University «Kharkiv Polytechnic Institute» has a powerful highvoltage high-current lightning current generator (LCG) that provides reproduction of all the above components of linear lightning current with ATPs normalized by [3,4] on tested for lightning resistibility objects of aviation and rocket and space technology [5][6][7]. This LCG of type UITOM-1 was developed and created in 2007 by the employees of the Scientific-&-Research Planning-&-Design Institute «Molniya» of the National Technical University «Kharkiv Polytechnic Institute» [5].…”

“…08/2128K of 05.16.2017) and placed in a buried measuring metal bunker remote from the UITOM-1 installation for reduce the influence of interference at a distance of 60 m [7, 17] have been used as DSO. Electrical equivalent circuits for the discharge circuits of five separate high-voltage PGSs (PCG-A, PCG-D, PCG-B, PCG-C and PCG-C*) and a powerful LCG type UITOM-1 as a whole with one common electric active-inductive R L L L load (F1, F2 -three-and two-electrode high-current air switches for voltage ±50 kV and ±5 kV, respectively; X1-X4 -electrical jumpers; R S =0.158 m -active resistance of a measuring coaxial shunt of type ShK-300М1; R1-R5, L1 -L3 -own electrical parameters of the circuits of PCG-A, PCG-D, PCG-B, PCG-C* and PCG-C; R6, L4 -electric of forming elements forcircuits of PCG-C and PCG-C*)[5,6]…”

The Metrology Support in Ukraine of Tests of Objects of Energy, Aviation and Space-Rocket Engineering on Resistibility to Action of Pulses of Current (Voltage) of Artificial Lightning and Commutation Pulses of Voltage

“…In the documents [1][2][3], the numerical values of the normalized ATPs used in the tests for the lightning resistibility of the considered technical objects of the current pulses of artificial lightning are described in more detail. In [4], the authors described the technical characteristics of unique domestic powerful high-voltage LCG, which realizes the requirements of documents [1][2][3]. The current Standard GOST 1516.2-97 [5] defines normalized ATPs of voltage pulses of lightning nature and commutation aperiodic voltage pulses used in testing the electrical strength of external (internal) insulation of industrial power engineering objects with capacitive characteristics (for example, switches, disconnectors, bushings, insulators, current transformers, capacitors, etc.).…”

“…The following combinations of these lightning current components are most often used [1,2,6]: A-, B-and Ccomponents; A-, B-and C*-components; D-, B-and C*components. Table 1 Normalized ATPs of the main components pulsed current of artificial lightning [1,2,4] Artificial lightning component…”