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China, Chinese Variable Frequency AC Resonant Test Systems for HV Cables GIS Onsite Testing1 Industrial Products Supplier Manufacturer Details, price list catalog:
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Xiamen Fivestar Electric Test Equipment Co., Ltd.
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Product DescriptionVariable Frequency AC Resonant Test SystemDescriptionCylinder modular type variable frequency HVAC resonant test systems operate in a frequency range from 20Hz to 300Hz, ideal for field commissioning test of power cables and GIS/GIL according to IEC, and test object is connected to the test system using a flexible high-voltage connection.The high-voltage reactor is fixed inductance, form resonance with capacitive test load by frequency converter power supply, and provide undistorted sinusoidal AC resonance test power. It features a modular design, oil insulation and cylinder insulated shell. Several reactors can be connected in series or parallel to achieve higher test voltages or power, voltage up to 2400kV.As part of a series resonant circuit, these systems provide undistorted AC high voltage. And because the systems are designed to have high quality factor (Q), low input power is required (1/Q) which results in lower installation and operating costs.ApplicationVariable frequency series resonant test system is mainly used for the field AC withstand voltage test of SF6 circuit breakers, XLPE cables, submarine cables, generators or capacitor banks, GIS combined appliances and other large-capacity power equipment of power cables with voltage levels of 1000kV and below. Main applications:1. For withstand voltage testing on transformers after they are installed on-site and for purposes of diagnostics in asset management according to IEC 60076-3;2. For withstand voltage tests on XLPE cables once laid on-site (after installation) according to IEC 60840 and IEC 62067;3. For testing of withstand voltage at GIS once installed on-site according to IEC 60517 and IEC 62271-203.Main ConfigurationsVariable frequency power sourceExciter transformerVariable frequency HV reactorBlock impedance Capacitive dividerCompensating capacitorPower cables, connection wires, insulation pedestalsPrinciple DiagramProducts Parameters1Rated current1 to 75A2Rated voltage35 to 2000kV3Frequency range20 to 300Hz4ControlManual & Automatic Computer controlReferenceCompany ProfileXiamen Fivestar Electric Test Equipment Co., Ltd. XIAMEN FIVESTAR ELECTRIC TEST EQUIPMENT, operating in the electricity industry, specializes in developing and providing high-voltage testing equipment, including AC Dielectric, HV DC Voltage, Impulse Voltage, Impulse current and other special tests, rating up to 2400kV AC, 2000kV DC, 7200kV Impulse. We started cooperating with Shanghai Jiaotong University for producing and research of HV testing equipment used in electrical applications since 1980s. With a focus on long-term maintenance, laboratory services, and consulting/testing, we offer comprehensive solutions for research, manufacturing, or maintenance purposes.We are a leading manufacturer in the Electricity industry with a highly skilled R&D team. Our advanced technology allows us to produce high-quality products efficiently. We utilize state-of-the-art production equipment that ensures precision and reliability. Our strong R&D capabilities enable us to continuously innovate and develop cutting-edge solutions that meet the evolving demands of our industry. Our factory is a leading player in the Electricity industry, boasting a spacious area of 80000sqm with a 50m height highest rating full shielded HV test hall. We take pride in our exceptional quality inspection capabilities, ensuring that all products meet the highest standards. With a focus on production efficiency, we have invested in state-of-the-art equipment that enables us to maximize output while maintaining top-notch quality. Our production capacity is unmatched, allowing us to meet the demands of our esteemed clients efficiently and effectively.WorkshopTest Lab
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