{"id":5464,"date":"2026-05-29T09:00:00","date_gmt":"2026-05-29T09:00:00","guid":{"rendered":"https:\/\/honcon-electric.com\/?p=5464"},"modified":"2026-05-14T03:39:28","modified_gmt":"2026-05-14T03:39:28","slug":"utility-scale-solar-substation-solution","status":"publish","type":"post","link":"https:\/\/honcon-electric.com\/ru\/utility-scale-solar-substation-solution\/","title":{"rendered":"Utility-Scale Solar Substation Solution for PV Power Plants"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"5464\" class=\"elementor elementor-5464\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-29a9295 e-flex e-con-boxed e-con e-parent\" data-id=\"29a9295\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-484210c elementor-widget elementor-widget-text-editor\" data-id=\"484210c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 data-section-id=\"13ax1s5\" data-start=\"470\" data-end=\"485\">Introduction<\/h2><p data-start=\"487\" data-end=\"844\">As utility-scale photovoltaic (PV) projects continue to expand worldwide, the design of reliable and efficient electrical infrastructure has become increasingly important. A utility-scale solar substation is responsible for voltage transformation, medium-voltage power collection, system protection, and grid interconnection within large solar power plants.<\/p><p data-start=\"846\" data-end=\"1145\">In modern PV projects, inverter output voltage is typically limited to low-voltage levels such as 400V, 690V, or 800V. Before electrical energy can be transmitted to the utility grid, the voltage must be increased through step-up transformers and integrated into a medium-voltage collection network.<\/p><p data-start=\"1147\" data-end=\"1199\">The design of the solar substation directly affects:<\/p><ul data-start=\"1200\" data-end=\"1327\"><li data-section-id=\"n0hp9l\" data-start=\"1200\" data-end=\"1225\">transmission efficiency<\/li><li data-section-id=\"b0h5eg\" data-start=\"1226\" data-end=\"1241\">system losses<\/li><li data-section-id=\"1pmdvv1\" data-start=\"1242\" data-end=\"1259\">grid compliance<\/li><li data-section-id=\"16alq9s\" data-start=\"1260\" data-end=\"1285\">operational reliability<\/li><li data-section-id=\"1couov3\" data-start=\"1286\" data-end=\"1327\">long-distance power delivery capability<\/li><\/ul><p data-start=\"1329\" data-end=\"1445\">For utility-scale projects above 20MW, proper substation configuration becomes a critical engineering consideration.<\/p><hr data-start=\"1447\" data-end=\"1450\" \/><h2 data-start=\"1457\" data-end=\"1521\">Typical Electrical Topology of a Utility-Scale Solar Power Plant<\/h2><p data-start=\"1523\" data-end=\"1579\">A utility-scale solar power plant generally consists of:<\/p><ol data-start=\"1580\" data-end=\"1853\"><li data-section-id=\"1g2m3n9\" data-start=\"1580\" data-end=\"1595\">PV modules<\/li><li data-section-id=\"11rg0nm\" data-start=\"1596\" data-end=\"1638\">String inverters or central inverters<\/li><li data-section-id=\"mbmkcx\" data-start=\"1639\" data-end=\"1681\">LV AC combiner or distribution panels<\/li><li data-section-id=\"4gjhot\" data-start=\"1682\" data-end=\"1707\"><a href=\"https:\/\/honcon-electric.com\/ru\/products\/three-phase-oil-immersed-transformer\/\">Step-up transformers<\/a><\/li><li data-section-id=\"exxvhr\" data-start=\"1708\" data-end=\"1746\">Medium-voltage collector circuits<\/li><li data-section-id=\"13s8ju4\" data-start=\"1747\" data-end=\"1791\"><a href=\"https:\/\/honcon-electric.com\/ru\/product\/medium-voltage-switchgear\/\">MV switchgear<\/a> or <a href=\"https:\/\/honcon-electric.com\/ru\/products\/gas-insulated-ring-main-unit\/\">Ring Main Unit<\/a>s (RMUs)<\/li><li data-section-id=\"179e7vf\" data-start=\"1792\" data-end=\"1820\">Main booster substation<\/li><li data-section-id=\"1c5wzz0\" data-start=\"1821\" data-end=\"1853\">Grid interconnection system<\/li><\/ol><p data-start=\"1855\" data-end=\"2055\">In most utility-scale projects, electrical energy generated by the inverters is stepped up from low-voltage levels to medium-voltage collector systems for efficient transmission across the solar farm.<\/p><p data-start=\"2057\" data-end=\"2109\">Common medium-voltage collection levels may include:<\/p><ul data-start=\"2110\" data-end=\"2137\"><li data-section-id=\"1j29tlh\" data-start=\"2110\" data-end=\"2116\">11kV<\/li><li data-section-id=\"1j2bxdh\" data-start=\"2117\" data-end=\"2123\">22kV<\/li><li data-section-id=\"1j2b87p\" data-start=\"2124\" data-end=\"2130\">33kV<\/li><li data-section-id=\"1j2bger\" data-start=\"2131\" data-end=\"2137\">35kV<\/li><\/ul><p data-start=\"2139\" data-end=\"2152\">depending on:<\/p><ul data-start=\"2153\" data-end=\"2242\"><li data-section-id=\"bkr9az\" data-start=\"2153\" data-end=\"2169\">plant capacity<\/li><li data-section-id=\"uwx2al\" data-start=\"2170\" data-end=\"2193\">transmission distance<\/li><li data-section-id=\"iq6rhx\" data-start=\"2194\" data-end=\"2214\">regional standards<\/li><li data-section-id=\"1sp0p98\" data-start=\"2215\" data-end=\"2242\">utility grid requirements<\/li><\/ul><p data-start=\"2244\" data-end=\"2420\">The collected power is then transferred to the main booster substation, where voltage is further increased to transmission-level voltages before connection to the utility grid.<\/p><hr data-start=\"2422\" data-end=\"2425\" \/><h2 data-section-id=\"yhlafw\" data-start=\"2427\" data-end=\"2431\">Medium-Voltage Collection System Design<\/h2><p data-start=\"2473\" data-end=\"2589\">In large-scale PV projects, transmitting power over long distances at low voltage is technically inefficient due to:<\/p><ul data-start=\"2590\" data-end=\"2691\"><li data-section-id=\"y27xjp\" data-start=\"2590\" data-end=\"2614\">excessive cable losses<\/li><li data-section-id=\"7rgmbn\" data-start=\"2615\" data-end=\"2629\">voltage drop<\/li><li data-section-id=\"1f0sq9k\" data-start=\"2630\" data-end=\"2669\">increased conductor size requirements<\/li><li data-section-id=\"1koyqpk\" data-start=\"2670\" data-end=\"2691\">thermal limitations<\/li><\/ul><p data-start=\"2693\" data-end=\"2869\">For this reason, medium-voltage collection systems are widely adopted in utility-scale solar substations to improve transmission efficiency and optimize cable investment costs.<\/p><p data-start=\"2871\" data-end=\"2960\">The selection of medium-voltage levels depends on several engineering factors, including:<\/p><ul data-start=\"2961\" data-end=\"3089\"><li data-section-id=\"b2kp9a\" data-start=\"2961\" data-end=\"2987\">total installed capacity<\/li><li data-section-id=\"3y2e3d\" data-start=\"2988\" data-end=\"3001\">site layout<\/li><li data-section-id=\"jd4m2m\" data-start=\"3002\" data-end=\"3026\">cable routing distance<\/li><li data-section-id=\"1hvn72j\" data-start=\"3027\" data-end=\"3057\">local utility specifications<\/li><li data-section-id=\"19ia6ew\" data-start=\"3058\" data-end=\"3089\">future expansion requirements<\/li><\/ul><p data-start=\"3091\" data-end=\"3304\">Among modern utility-scale solar projects, 33kV and 35kV collection systems are commonly used because they provide a practical balance between insulation requirements, equipment cost, and transmission performance.<\/p><hr data-start=\"3306\" data-end=\"3309\" \/><h2 data-section-id=\"yhlafw\" data-start=\"3311\" data-end=\"3315\">Step-Up Transformer Selection for Solar Power Plants<\/h2><p data-start=\"3370\" data-end=\"3655\">Step-up transformers are one of the most important components within a utility-scale solar substation. Their primary function is to increase inverter output voltage to the medium-voltage collection level while maintaining stable operation under fluctuating solar generation conditions.<\/p><p data-start=\"3370\" data-end=\"3655\">Step-up transformers used in utility-scale solar substations are typically designed according to <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/588\" target=\"_blank\" rel=\"noopener\">IEC 60076<\/a> standards.<\/p><p data-start=\"3657\" data-end=\"3779\">Transformer ratings are selected according to project capacity and collector system design. Common capacities may include:<\/p><ul data-start=\"3780\" data-end=\"3819\"><li data-section-id=\"nev8gl\" data-start=\"3780\" data-end=\"3789\">1000kVA<\/li><li data-section-id=\"rakzwz\" data-start=\"3790\" data-end=\"3799\">1600kVA<\/li><li data-section-id=\"jow0dv\" data-start=\"3800\" data-end=\"3809\">2500kVA<\/li><li data-section-id=\"1uvi6k3\" data-start=\"3810\" data-end=\"3819\">3150kVA<\/li><\/ul><p data-start=\"3821\" data-end=\"3867\">Transformer voltage ratings vary depending on:<\/p><ul data-start=\"3868\" data-end=\"4000\"><li data-section-id=\"1jm7xyo\" data-start=\"3868\" data-end=\"3893\">inverter output voltage<\/li><li data-section-id=\"1m4r3et\" data-start=\"3894\" data-end=\"3929\">MV collector system configuration<\/li><li data-section-id=\"1rikgja\" data-start=\"3930\" data-end=\"3968\">utility interconnection requirements<\/li><li data-section-id=\"1bq5iij\" data-start=\"3969\" data-end=\"4000\">regional electrical standards<\/li><\/ul><p data-start=\"4002\" data-end=\"4094\">For utility-scale outdoor applications, oil-immersed transformers are widely adopted due to:<\/p><ul data-start=\"4095\" data-end=\"4217\"><li data-section-id=\"1xz82cp\" data-start=\"4095\" data-end=\"4123\">higher overload capability<\/li><li data-section-id=\"1lcoz2j\" data-start=\"4124\" data-end=\"4152\">better thermal performance<\/li><li data-section-id=\"1174ji1\" data-start=\"4153\" data-end=\"4172\">long service life<\/li><li data-section-id=\"m681dg\" data-start=\"4173\" data-end=\"4217\">suitability for harsh outdoor environments<\/li><\/ul><p data-start=\"4219\" data-end=\"4262\">Important technical considerations include:<\/p><ul data-start=\"4263\" data-end=\"4435\"><li data-section-id=\"mkv7ho\" data-start=\"4263\" data-end=\"4287\">load loss optimization<\/li><li data-section-id=\"1w22wfs\" data-start=\"4288\" data-end=\"4312\">no-load loss reduction<\/li><li data-section-id=\"1y9ot7v\" data-start=\"4313\" data-end=\"4344\">harmonic withstand capability<\/li><li data-section-id=\"s6gvdb\" data-start=\"4345\" data-end=\"4370\">temperature rise limits<\/li><li data-section-id=\"13qnmdz\" data-start=\"4371\" data-end=\"4396\">insulation coordination<\/li><li data-section-id=\"1lmcrl\" data-start=\"4397\" data-end=\"4435\">cooling methods such as ONAN or ONAF<\/li><\/ul><hr data-start=\"4437\" data-end=\"4440\" \/><h2 data-section-id=\"yhlafw\" data-start=\"4442\" data-end=\"4446\">Role of RMU and MV Switchgear in Utility-Scale Solar Substations<\/h2><p data-start=\"4513\" data-end=\"4657\">Medium-voltage switchgear systems are essential for feeder protection, fault isolation, and operational safety within the PV collection network.<\/p><p data-start=\"4659\" data-end=\"4742\">Depending on the collector system topology, Ring Main Units (RMUs) may be used for:<\/p><ul data-start=\"4743\" data-end=\"4854\"><li data-section-id=\"15o8f4m\" data-start=\"4743\" data-end=\"4765\">cable sectionalizing<\/li><li data-section-id=\"1f15wdi\" data-start=\"4766\" data-end=\"4783\">fault isolation<\/li><li data-section-id=\"1rhppc4\" data-start=\"4784\" data-end=\"4813\">improving supply continuity<\/li><li data-section-id=\"1apivon\" data-start=\"4814\" data-end=\"4854\">simplifying loop network configuration<\/li><\/ul><p data-start=\"4856\" data-end=\"4962\">In larger substations, metal-clad MV switchgear with vacuum circuit breakers is more commonly adopted for:<\/p><ul data-start=\"4963\" data-end=\"5051\"><li data-section-id=\"1qbc672\" data-start=\"4963\" data-end=\"4982\">feeder protection<\/li><li data-section-id=\"15bofrk\" data-start=\"4983\" data-end=\"5007\">transformer protection<\/li><li data-section-id=\"12bjeq2\" data-start=\"5008\" data-end=\"5031\">busbar sectionalizing<\/li><li data-section-id=\"m07phe\" data-start=\"5032\" data-end=\"5051\">SCADA integration<\/li><\/ul><p data-start=\"5053\" data-end=\"5084\">Protection systems may include:<\/p><ul data-start=\"5085\" data-end=\"5208\"><li data-section-id=\"10bng98\" data-start=\"5085\" data-end=\"5109\">overcurrent protection<\/li><li data-section-id=\"v5bczv\" data-start=\"5110\" data-end=\"5134\">earth fault protection<\/li><li data-section-id=\"yf692i\" data-start=\"5135\" data-end=\"5160\">differential protection<\/li><li data-section-id=\"12aeqwq\" data-start=\"5161\" data-end=\"5208\">remote monitoring and communication functions<\/li><\/ul><hr data-start=\"5210\" data-end=\"5213\" \/><h2 data-start=\"5220\" data-end=\"5273\">Prefabricated Substation Solutions for Solar Projects<\/h2><p data-start=\"5275\" data-end=\"5427\"><a href=\"https:\/\/honcon-electric.com\/ru\/product\/prefabricated-substation\/\">Prefabricated substation<\/a>s are increasingly used in utility-scale solar projects because they reduce installation time and simplify on-site construction.<\/p><p data-start=\"5429\" data-end=\"5490\">A prefabricated utility-scale solar substation may integrate:<\/p><ul data-start=\"5491\" data-end=\"5639\"><li data-section-id=\"1g2w6cw\" data-start=\"5491\" data-end=\"5506\">MV switchgear<\/li><li data-section-id=\"1blyhwa\" data-start=\"5507\" data-end=\"5529\">step-up transformers<\/li><li data-section-id=\"ho4zi5\" data-start=\"5530\" data-end=\"5551\">LV auxiliary panels<\/li><li data-section-id=\"1m3o4fy\" data-start=\"5552\" data-end=\"5578\">relay protection systems<\/li><li data-section-id=\"8nx38i\" data-start=\"5579\" data-end=\"5604\">communication equipment<\/li><li data-section-id=\"13ov5wy\" data-start=\"5605\" data-end=\"5639\">HVAC and fire protection systems<\/li><\/ul><p data-start=\"5641\" data-end=\"5717\">Compared with conventional civil substations, prefabricated solutions offer:<\/p><ul data-start=\"5718\" data-end=\"5886\"><li data-section-id=\"b24akm\" data-start=\"5718\" data-end=\"5750\">shorter construction schedules<\/li><li data-section-id=\"1j0i6s8\" data-start=\"5751\" data-end=\"5779\">factory-tested integration<\/li><li data-section-id=\"1ndf0b6\" data-start=\"5780\" data-end=\"5814\">lower on-site labor requirements<\/li><li data-section-id=\"1uzf4ko\" data-start=\"5815\" data-end=\"5855\">easier transportation and installation<\/li><li data-section-id=\"1wvjo5x\" data-start=\"5856\" data-end=\"5886\">improved quality consistency<\/li><\/ul><p data-start=\"5888\" data-end=\"6002\">This approach is especially suitable for remote solar farm projects where construction conditions are challenging.<\/p><hr data-start=\"6004\" data-end=\"6007\" \/><h2 data-section-id=\"yhlafw\" data-start=\"6009\" data-end=\"6013\">Engineering Challenges in Utility-Scale Solar Substation Design<\/h2><p data-start=\"6079\" data-end=\"6172\">Several technical challenges must be considered during utility-scale solar substation design.<\/p><h3 data-section-id=\"ge3my8\" data-start=\"6174\" data-end=\"6197\">Harmonic Distortion<\/h3><p data-start=\"6198\" data-end=\"6380\">Power electronic converters inside PV inverters may introduce harmonic currents into the system, requiring transformers and switchgear with appropriate harmonic withstand capability.<\/p><h3 data-section-id=\"iloakc\" data-start=\"6382\" data-end=\"6410\">High Ambient Temperature<\/h3><p data-start=\"6411\" data-end=\"6561\">Projects in desert, tropical, or high-radiation regions require equipment designed for elevated ambient temperatures and continuous outdoor operation.<\/p><h3 data-section-id=\"va7kvi\" data-start=\"6563\" data-end=\"6587\">Grid Code Compliance<\/h3><p data-start=\"6588\" data-end=\"6611\">Many utilities require:<\/p><ul data-start=\"6612\" data-end=\"6739\"><li data-section-id=\"3hhbh4\" data-start=\"6612\" data-end=\"6641\">reactive power compensation<\/li><li data-section-id=\"ng64q6\" data-start=\"6642\" data-end=\"6673\">voltage regulation capability<\/li><li data-section-id=\"17onpk2\" data-start=\"6674\" data-end=\"6707\">low-voltage ride-through (LVRT)<\/li><li data-section-id=\"5wod8\" data-start=\"6708\" data-end=\"6739\">remote dispatch communication<\/li><\/ul><h3 data-section-id=\"1viqha5\" data-start=\"6741\" data-end=\"6769\">Environmental Protection<\/h3><p data-start=\"6770\" data-end=\"6802\">Outdoor substations may require:<\/p><ul data-start=\"6803\" data-end=\"6893\"><li data-section-id=\"ucd6dn\" data-start=\"6803\" data-end=\"6829\">anti-corrosion treatment<\/li><li data-section-id=\"e9a6ur\" data-start=\"6830\" data-end=\"6851\">IP-rated enclosures<\/li><li data-section-id=\"ye9isd\" data-start=\"6852\" data-end=\"6869\">dust protection<\/li><li data-section-id=\"1b6jqi0\" data-start=\"6870\" data-end=\"6893\">salt spray resistance<\/li><\/ul><p data-start=\"6895\" data-end=\"6939\">to ensure long-term operational reliability.<\/p><hr data-start=\"6941\" data-end=\"6944\" \/><h2 data-section-id=\"yhlafw\" data-start=\"6946\" data-end=\"6950\">Haocheng Electric Utility-Scale Solar Substation Solutions<\/h2><p data-start=\"7005\" data-end=\"7115\">Haocheng Electric provides customized utility-scale solar substation solutions for PV projects worldwide, including:<\/p><ul data-start=\"7116\" data-end=\"7225\"><li data-section-id=\"1blyhwa\" data-start=\"7116\" data-end=\"7138\">step-up transformers<\/li><li data-section-id=\"1jpyk1u\" data-start=\"7139\" data-end=\"7160\">compact substations<\/li><li data-section-id=\"l1ahuc\" data-start=\"7161\" data-end=\"7174\">RMU systems<\/li><li data-section-id=\"18nlcdh\" data-start=\"7175\" data-end=\"7197\">MV and HV switchgear<\/li><li data-section-id=\"1e2b8yz\" data-start=\"7198\" data-end=\"7225\">\u041a\u043e\u043c\u043f\u043b\u0435\u043a\u0442\u043d\u0430\u044f \u0442\u0440\u0430\u043d\u0441\u0444\u043e\u0440\u043c\u0430\u0442\u043e\u0440\u043d\u0430\u044f \u043f\u043e\u0434\u0441\u0442\u0430\u043d\u0446\u0438\u044f<\/li><\/ul><p data-start=\"7227\" data-end=\"7312\">Our solutions are designed according to IEC standards and can be customized based on:<\/p><ul data-start=\"7313\" data-end=\"7409\"><li data-section-id=\"a6xzir\" data-start=\"7313\" data-end=\"7340\">local grid specifications<\/li><li data-section-id=\"c93esp\" data-start=\"7341\" data-end=\"7359\">project capacity<\/li><li data-section-id=\"1nyc7f4\" data-start=\"7360\" data-end=\"7386\">environmental conditions<\/li><li data-section-id=\"1wb8qlg\" data-start=\"7387\" data-end=\"7409\">utility requirements<\/li><\/ul><p data-start=\"7411\" data-end=\"7597\">With extensive experience in international power projects, Haocheng Electric supports EPC contractors, developers, and utility customers with reliable and efficient solar substation solutions.<\/p><hr data-start=\"7599\" data-end=\"7602\" \/><h2 data-section-id=\"fsb6xx\" data-start=\"7604\" data-end=\"7616\">Conclusion<\/h2><p data-start=\"7618\" data-end=\"7820\">A well-designed utility-scale solar substation plays a critical role in ensuring efficient power collection, stable grid interconnection, and long-term operational reliability in modern PV power plants.<\/p><p data-start=\"7822\" data-end=\"8046\" data-is-last-node=\"\" data-is-only-node=\"\">As utility-scale solar projects continue to increase in capacity and complexity, properly engineered substations, transformers, and medium-voltage systems become essential for achieving safe and efficient power transmission.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d50e12d e-flex e-con-boxed e-con e-parent\" data-id=\"d50e12d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-02d92f5 elementor-widget elementor-widget-gallery\" data-id=\"02d92f5\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;columns&quot;:2,&quot;lazyload&quot;:&quot;yes&quot;,&quot;gallery_layout&quot;:&quot;grid&quot;,&quot;columns_tablet&quot;:2,&quot;columns_mobile&quot;:1,&quot;gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:10,&quot;sizes&quot;:[]},&quot;gap_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:10,&quot;sizes&quot;:[]},&quot;gap_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:10,&quot;sizes&quot;:[]},&quot;link_to&quot;:&quot;file&quot;,&quot;aspect_ratio&quot;:&quot;3:2&quot;,&quot;overlay_background&quot;:&quot;yes&quot;,&quot;content_hover_animation&quot;:&quot;fade-in&quot;}\" data-widget_type=\"gallery.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-gallery__container\">\n\t\t\t\t\t\t\t<a class=\"e-gallery-item elementor-gallery-item elementor-animated-content\" href=\"https:\/\/honcon-electric.com\/wp-content\/uploads\/2026\/05\/2-5.webp\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"02d92f5\" data-elementor-lightbox-title=\"utility-scale solarsubstation-2\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NTQ3NiwidXJsIjoiaHR0cHM6XC9cL2hvbmNvbi1lbGVjdHJpYy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzA1XC8yLTUud2VicCIsInNsaWRlc2hvdyI6IjAyZDkyZjUifQ%3D%3D\">\n\t\t\t\t\t<div class=\"e-gallery-image elementor-gallery-item__image\" data-thumbnail=\"https:\/\/honcon-electric.com\/wp-content\/uploads\/2026\/05\/2-5-768x576.webp\" data-width=\"768\" data-height=\"576\" aria-label=\"utility-scale solarsubstation-2\" role=\"img\" ><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__overlay\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<a class=\"e-gallery-item elementor-gallery-item elementor-animated-content\" href=\"https:\/\/honcon-electric.com\/wp-content\/uploads\/2026\/05\/4-1.webp\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"02d92f5\" data-elementor-lightbox-title=\"utility-scale solarsubstation-1\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NTQ3NCwidXJsIjoiaHR0cHM6XC9cL2hvbmNvbi1lbGVjdHJpYy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzA1XC80LTEud2VicCIsInNsaWRlc2hvdyI6IjAyZDkyZjUifQ%3D%3D\">\n\t\t\t\t\t<div class=\"e-gallery-image elementor-gallery-item__image\" data-thumbnail=\"https:\/\/honcon-electric.com\/wp-content\/uploads\/2026\/05\/4-1-768x576.webp\" data-width=\"768\" data-height=\"576\" aria-label=\"utility-scale solarsubstation-1\" role=\"img\" ><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__overlay\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Introduction As utility-scale photovoltaic (PV) projects continue to expand worldwide, the design of reliable and efficient electrical infrastructure has become increasingly important. A utility-scale solar substation is responsible for voltage transformation, medium-voltage power collection, system protection, and grid interconnection within large solar power plants. In modern PV projects, inverter output voltage is typically limited to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5475,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_joinchat":[],"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5464","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/honcon-electric.com\/ru\/wp-json\/wp\/v2\/posts\/5464","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/honcon-electric.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/honcon-electric.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/honcon-electric.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/honcon-electric.com\/ru\/wp-json\/wp\/v2\/comments?post=5464"}],"version-history":[{"count":11,"href":"https:\/\/honcon-electric.com\/ru\/wp-json\/wp\/v2\/posts\/5464\/revisions"}],"predecessor-version":[{"id":5480,"href":"https:\/\/honcon-electric.com\/ru\/wp-json\/wp\/v2\/posts\/5464\/revisions\/5480"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/honcon-electric.com\/ru\/wp-json\/wp\/v2\/media\/5475"}],"wp:attachment":[{"href":"https:\/\/honcon-electric.com\/ru\/wp-json\/wp\/v2\/media?parent=5464"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/honcon-electric.com\/ru\/wp-json\/wp\/v2\/categories?post=5464"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/honcon-electric.com\/ru\/wp-json\/wp\/v2\/tags?post=5464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}