METHOD FOR DETERMINING THE MAXIMUM capacitive current single-phase earthings in three-phase Cable Electric Networks compensated grounding DVUGOGASYASCHIM STUPENCHATOREGULIRUEMYM neutral reactor

摘要

1.method u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 maximum u0435u043cu043au043eu0441u0442u043du043eu0433u043e current u043eu0434u043du043eu0444u0430u0437u043du043eu0433u043e u0437u0430u043cu044bu043au0430u043du0438u00a0 to earth in a three-phase power cable of electrical u043au043eu043cu043fu0435u043du0441u0438u0440u043eu0432u0430u043du043du043eu0439 u0437u0430u0437u0435u043cu043bu00a0u044eu0449u0438u043c u0434u0443u0433u043eu0433 u0430u0441u00a0u0449u0438u043c u0441u0442u0443u043fu0435u043du0447u0430u0442u043eu0440u0435u0433u0443u043bu0438u0440u0443u0435u043cu044bu043c reactor neutral, including the periodic compensation u0435u043cu043au043eu0441u0442u043du043eu0433u043e current u043eu0434u043du043eu0444u0430u0437u043du043eu0433u043e u0437u0430u043cu044bu043au0430u043du0438u00a0 network for earth connection me waiting for one of the phases and the additional network capacitythe first dimension u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 u0441u043cu0435u0449u0435u043du0438u00a0 u043du0435u0439u0442u0440u0430u043bu0438, restructuring of branches of reactor, the second dimension u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 u0441u043cu0435u0449u0435u043du0438u00a0 u043du0435u0439u0442u0440u0430u043bu0438, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 that, in the u043eu0447u0435u0440u0435u0434 noah compensation u0435u043cu043au043eu0441u0442u043du043eu0433u043e current u043eu0434u043du043eu0444u0430u0437u043du043eu0433u043e u0437u0430u043cu044bu043au0430u043du0438u00a0 to land with the first and second measurement u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 u0441u043cu0435u0449u0435u043du0438u00a0 u043du0435u0439u0442u0440u0430u043bu0438 jointly u0438u0437u043cu0435u0440u00a0u044eu0442 current through the reactor.the phase shift u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 u0441u043cu0435u0449u0435u043du0438u00a0 u043du0435u0439u0442u0440u0430u043bu0438 on current through the reactor, the angle shift on the phase u0444u0430u0437u043du043eu0433u043e u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 network in phase with the additional capacity of u043du043eu0441u0438u0442u0435u043bu044cu043du043e current through the reactor, u0444u0430u0437u043du043eu0435 u043du0430u043fu0440u00a0u0436u0435u043du0438u0435 network frequency networkin the intervals of time between successive u043au043eu043cu043fu0435u043du0441u0430u0446u0438u00a0u043cu0438 u0435u043cu043au043eu0441u0442u043du043eu0433u043e current u043eu0434u043du043eu0444u0430u0437u043du043eu0433u043e u0437u0430u043cu044bu043au0430u043du0438u00a0 network on the ground temporarily put between one of the phases of the network and the earth to u043fu043eu043bu043du0438u0442u0435u043bu044cu043du0443u044e reference capacity, u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 joint u0438u0437u043cu0435u0440u0435u043du0438u00a0 values u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 u0441u043cu0435u0449u0435u043du0438u00a0 u043du0435u0439u0442u0440u0430u043bu0438, u0444u0430u0437u043du043eu0433u043e u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 network, current through the reactor, the frequency of the network.the shift in the phase u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 u0441u043cu0435u0449u0435u043du0438u00a0 u043du0435u0439u0442u0440u0430u043bu0438 on current through the reactor, the shift in the phase u0444u0430u0437u043du043eu0433u043e u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 network in phase with an additional reference e u043cu043au043eu0441u0442u044cu044e on current through the reactor, and the parameters of the network u043eu043fu0440u0435u0434u0435u043bu00a0u044eu0442 on formulas:;Ikmu043d = - (UAIk) mu043d, m = 1, 2,;U0mu043d = - (UAIk) mu043d + (U0Ik) mu043d, m = 1; 2;bCq = 2 fqCq, q = n; p,;bAq = 2 fqCAq, q = n; p,;bCq + = bCq - bAq, q = n; p,;q = bAq / bCq, q = n; p,;h + = (bu0441u043d + - bk1u043d) / bCu043d +;u0441q + = Cq - CAq, q = n; p,;(ICn +) fu043du043eu043c, Uu0444u043du043eu043c = 2 fu043du043eu043cCn + Uu0444u043du043eu043c, q = n; p,;Ikn = - (UAIk) n;U0n = - (UAIk) n + (n U0Ik);cn = - arctg (fu043du043eu043c / fn) dC);bCn + = bCn - bAn,;n + = (bCn + - bkn) / bCn +;where b, g, y are respectively u0440u0435u0430u043au0442u0438u0432u043du0430u00a0, u0430u043au0442u0438u0432u043du0430u00a0 and u043fu043eu043bu043du0430u00a0 conductance of chain;with the capacitance.;dC = (gC / bC) fu043du043eu043c - the u0443u0441u043fu043eu043au043eu0435u043du0438u00a0 network without regard to the reactor at nominal frequency u043fu0438u0442u0430u043du0438u00a0,;dk = (gk / bk) fu043du043eu043c - u0442u0430u043du0433u0435u043du0441 angle loss of reactor at nominal frequency u043fu0438u0442u0430u043du0438u00a0,;u0435j operator rotation vector to the corner.;f is the frequency of the network.;(ICu043d +) fu043du043eu043c, Uu0444u043du043eu043c maximum u0435u043cu043au043eu0441u0442u043du044bu0439 current u043eu0434u043du043eu0444u0430u0437u043du043eu0433u043e u0437u0430u043cu044bu043au0430u043du0438u00a0 network to the ground network u0434u043bu00a0 u0441u043eu0441u0442u043eu00a0u043du0438u00a0 directly after the periodic compensation u0435u043cu043au043eu0441u0442u043du043eu0433u043e then this u043eu0434u043du043eu0444u0430u0437u043du043eu0433u043e u0437u0430u043cu044bu043au0430u043du0438u00a0 network on the ground and u043eu0442u043au043bu044eu0447u0435u043du0438u00a0 additional capacity in phase and network with f = fu043du043eu043c, Uu0444 = Uu0444 nome.;ik current through the reactor.;Uo - u043du0430u043fu0440u00a0u0436u0435u043du0438u0435 shift u043du0435u0439u0442u0440u0430u043bu0438,;Uu0444 - u0444u0430u0437u043du043eu0435 u043du0430u043fu0440u00a0u0436u0435u043du0438u0435 network;integrated value of conductance;u0441A, bA, yA, respectively u0440u0435u0430u043au0442u0438u0432u043du0430u00a0 capacity, conductivity, the conductivity and the conductivity value additional capacity in phase and network;- u0435u043cu043au043eu0441u0442u043du0430u00a0 u0430u0441u0438u043cu043cu0435u0442u0440u0438u00a0 network;i0, U0 (UAI0), (U0I0), respectively, the angle shift on the phase current through the reactor on the u0444u0430u0437u043du043eu0433u043e u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 source in phase and phase angle shift u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 u0441u043cu0435u0449u0435u043du0438u00a0 not u0439u0442u0440u0430u043bu0438 on u0444u0430u0437u043du043eu0433u043e u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 source in phase and phase angle shift u0444u0430u0437u043du043eu0433u043e u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 source in phase and on the current through the reactor.the phase shift u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 u0441u043cu0435u0449u0435u043du0438u00a0 u043du0435u0439u0442u0440u0430u043bu0438 on current through the reactor.;degree of tuning compensation;canvas index "and" the symbols of points to the identity parameter for phase and networkwhich u0434u043bu00a0 certainty put additional capacity; u043fu043eu0434u0441u0442u0440u043eu0447u043du044bu0435 exponent "n" and "w" with symbols indicate the membership parameters respectively. to configure the reactor with periodic compensation u0435u043cu043au043eu0441u0442u043du043eu0433u043e current u043eu0434u043du043eu0444u0430u0437u043du043eu0433u043e u0437u0430u043cu044bu043au0430u043du0438u00a0 to earth and to u043fu0440u043eu043cu0435u0436u0443u0442u043au0443 time between successive u043au043eu043cu043fu0435u043du0441u0430u0446u0438u00a0u043cu0438 u0435u043cu043au043eu0441u0442u043d wow. u043eu0434u043du043eu0444u0430u0437u043du043eu0433u043e u0437u0430u043cu044bu043au0430u043du0438u00a0 network on the ground; u043fu043eu0434u0441u0442u0440u043eu0447u043du044bu0435 indices "c" and "k" inthe symbols indicate the affiliation of parameters respectively to the network without regard to the reactor and the reactor; canvas index "m" with the symbols of the u044bu0432u0430u0435u0442 to belong to u0441u043eu0441u0442u043eu00a0u043du0438u044e restructuring of branches of reactor (in the first u0441u043eu0441u0442u043eu00a0u043du0438u0438 (m = 1, in the second u0441u043eu0441u0442u043eu00a0u043du0438u0438 (m = 2); canvas index with the symbols "+" u043fu0430u0440u0430u043cu0435u0442 is said to belong to u0441u043eu0441u0442u043eu00a0u043du0438u044e,directly following the shutdown, additional capacity in phase and network; canvas index "," nominal symbol parameter indicates the fundamental the underlined characters; u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 and current points to the complexity of their values.