{"id":883,"date":"2025-03-31T03:02:10","date_gmt":"2025-03-31T03:02:10","guid":{"rendered":"https:\/\/pineele.com\/?p=883"},"modified":"2025-04-17T09:39:18","modified_gmt":"2025-04-17T09:39:18","slug":"500-kva-compact-substation","status":"publish","type":"post","link":"https:\/\/pineele.com\/ja\/500-kva-compact-substation","title":{"rendered":"500 kVA Compact Substation"},"content":{"rendered":"

\u306f\u3058\u3081\u306b<\/strong><\/h2>\n\n\n\n

As urban infrastructure expands and industries demand more compact, reliable power systems, the 500 kVA Compact Substation<\/strong> has emerged as a preferred solution for medium-to-low voltage transformation. Compact in design but comprehensive in functionality, it serves as an all-in-one power node, combining a distribution transformer<\/strong>, \u9ad8\u5727\u958b\u9589\u88c5\u7f6e<\/strong>\u305d\u3057\u3066 low voltage panel<\/strong> into a single, factory-built unit.<\/p>\n\n\n\n

\"500<\/figure>\n\n\n\n
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What Makes a 500 kVA Compact Substation Unique?<\/strong><\/h2>\n\n\n\n

Unlike traditional substations that require separate civil infrastructure and extended installation timelines, the 500 kVA compact variant is fully prefabricated<\/strong>, tested in factory conditions, and delivered ready for deployment. Its modular nature reduces installation complexity and ensures consistent performance across different environmental conditions.<\/p>\n\n\n\n

Whether deployed in an urban residential area or a remote solar field, this unit is engineered to deliver dependable service with minimal maintenance.<\/p>\n\n\n\n

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\u6280\u8853\u4ed5\u69d8<\/strong><\/h2>\n\n\n\n
\u4ed5\u69d8<\/th>\u4fa1\u5024<\/th><\/tr><\/thead>
Rated Power<\/strong><\/td>500 kVA<\/td><\/tr>
Primary Voltage<\/strong><\/td>11 kV \/ 22 kV \/ 33 kV<\/td><\/tr>
Secondary Voltage<\/strong><\/td>400 V \/ 230 V<\/td><\/tr>
\u983b\u5ea6<\/strong><\/td>50 Hz \/ 60 Hz<\/td><\/tr>
Transformer Type<\/strong><\/td>Oil-immersed (ONAN) or Cast Resin (Dry-type)<\/td><\/tr>
\u51b7\u5374\u65b9\u6cd5<\/strong><\/td>Natural air (ONAN)<\/td><\/tr>
Vector Group<\/strong><\/td>Dyn11 (Standard), customizable<\/td><\/tr>
Protection Level<\/strong><\/td>IP54 or higher (for outdoor use)<\/td><\/tr>
Switchgear Type<\/strong><\/td>RMU \/ LBS \/ VCB (SF6 or Vacuum Insulated)<\/td><\/tr>
Low Voltage Panel<\/strong><\/td>ACB\/MCCB with metering & feeder breakers<\/td><\/tr>
Compliance Standards<\/strong><\/td>IEC 60076, IEC 62271-202, ISO 9001<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Structural Configuration<\/strong><\/h2>\n\n\n\n

A standard 500 kVA compact substation is divided into three isolated compartments for safety and functionality:<\/p>\n\n\n\n

1. Medium Voltage Section<\/strong><\/h3>\n\n\n\n

Equipped with SF6-insulated RMUs or load break switches, this compartment handles incoming MV power (typically 11 kV or 22 kV). Safety features include surge arresters, current transformers (CTs), and interlocks.<\/p>\n\n\n\n

2. Transformer Chamber<\/strong><\/h3>\n\n\n\n

This compartment houses the 500 kVA transformer, built with high-grade CRGO silicon steel core or cast resin technology. Thermal indicators, oil level gauges, and pressure release valves ensure safe operation.<\/p>\n\n\n\n

3. Low Voltage Section<\/strong><\/h3>\n\n\n\n

Outgoing feeders, typically via molded case circuit breakers (MCCBs) or air circuit breakers (ACBs), distribute power to the connected loads. The panel includes voltmeters, ammeters, energy meters, and optional IoT-based smart monitoring.<\/p>\n\n\n\n

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Typical Applications<\/strong><\/h2>\n\n\n\n