A COAXIAL DISK SHUNT FOR MEASUREMENT IN THE HIGH-CURRENT CIRCUIT OF HIGH-VOLTAGE GENERATOR OF STORM DISCHARGES OF PULSES OF CURRENT OF ARTIFICIAL LIGHTNING WITH THE INTEGRAL OF ACTION UP TO 15•106 J/OHM
Journal Title: Електротехніка і Електромеханіка - Year 2017, Vol 0, Issue 5
Abstract
Purpose. Description of construction and basic technical descriptions developed and created in Research & Design Institute «Molniya» of the National Technical University «Kharkiv Polytechnic Institute» high-voltage high-current coaxial disk shunt of type of SC-300M2, allowing reliably to measure the peak-temporal parameters (PTP) of pulses of current of artificial lightning in wide peak and temporal ranges with the integral of their action to 15•106 J/Ohm. Methodology. Electrophysics bases of high-voltage impulsive technique, scientific and technical bases of development and creation of high-voltage high-current pulsive electrical equipment including the powerful generators of current of lightning (GCL), and also measuring methods in discharge circuit of the powerful high-voltage GCL AVP high pulse currents of micro- and millisecond temporal ranges. Results. Offered and described new construction of measuring high-voltage heavy-current shunt, containing a measuring round disk from stainless steel easily soiled 12Х18Н10Т of thickness of 2 mm and external diameter 80 mm. Experimental a way pulse active resistance of RS≈0,08 mOhm of the indicated measuring disk and on his basis a calculation coefficient transformation is found of SS of coaxial disk shunt of type of SC-300M2, numeral equal in the concerted mode of operations of his coaxial cable line (CCL) SS≈2/RS≈25•103 A/V. It is shown that it is expedient to use this value SS for measuring in the heavy-current discharge circuit of the GCL ATP impulsive A- and repeated impulsive D- component of current of artificial lightning, and also ATP of aperiodic pulse of current of artificial lightning of temporal form 10 μc/350 μc. It is set that taking into account application in the end GCL of shunt of a co-ordinate divizor of voltage with two output coaxial sockets 1:1 (for SSA≈25•103 A/V) and 1:2 (SSC≈12.5•103 A/V) at measuring of ATP intermediate B-, protracted C- and shortened protracted C*- component of current of artificial lightning in GCL it is expedient to utillize a numeral value SS for the examined shunt, equal 12.5•103 A/V. Practical approbation and verification of capacity of the improved measuring coaxial disk shunt of type of SC-300M2 is executed in the high-voltage heavy-current discharge circuit of the powerful GCL, forming on the actively-inductive loading of A- and C*- the components of current of artificial lightning with rationed ATP. Originality. Developed and created new high-voltage heavy-current measuring shunt of type of SC-300M2, allowing reliably to register rationed ATP of attenuation sinewave and aperiodic pulses of current of artificial lightning in the circuits of powerful GCL with amplitude to ±220 кА and integral them action to 13.5•106 J/Ohm. On the measuring coaxial disk shunt of type of SC-300M2 from Government Metrology Service of Ukraine the certificate of accordance of the set form is got. Practical value. Application of the created shunt of type of SC-300M2 in composition the high-voltage high-current discharge circuits of powerful GCL will allow in a certain measure to improve the metrology providing of tests of aviation and space-rocket technique, and also objects of electrical power engineering on stability to lightning.
Authors and Affiliations
M. I. Baranov, V. V. Kniaziev, S. V. Rudakov
Keywords
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- EP ID EP293515
- DOI 10.20998/2074-272X.2017.5.07
- Views 75
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