Low-Voltage Reactor

Main Features

•  Tuned reactors are divided into both three-phase and single-phase configurations, all of which are dry-type with iron cores.

•  The core is made of high-quality, low-loss imported cold-rolled grain-oriented silicon steel sheets. The core columns are divided into uniform, small sections by multiple air gap, which are isolated by Nomex insulation paper to ensure that the reactive air gap does not change during operation.

•  The reactor coils are wound with Class H enameled copper and aluminum wire, arranged in a tight and uniform pattern. The exterior is left uncoated, resulting in an aesthetically pleasing appearance and excellent heat dissipation.

• After the coil and core are assembled into a single unit, they undergo a process of pre flooding → vacuum impregnation → heat curing using Class H impregnating varnish. This firmly bonds the coil and core together, significantly reducing operational noise while providing an extremely high heat resistance rating, ensuring the reactor operates safely and quietly even at high temperatures.

•  The fasteners in the reactor’s core column are made of non-magnetic materials, ensuring a high power factor and low temperature rise, thereby guaranteeing effective filtering performance.

• The reactor employs natural air cooling, and all exposed components undergo anti-corrosion treatment. The lead terminals use tin-plated copper tube terminals. Consistency in the product’s electrical performance parameters is ensured through product testing and 100% inspection at every production stage. All materials used comply with UL and SGS standards.

DNSR Technical Parameter

•  Compliant with standard: IEC 60289

•  Environmental temperature: For indoor use, he ambient temperature should be below 50°C,and the average ambient temperature should not exceed 35°C with in 24 hours, at an altitude of less than 2000 meters.

•  Temperature rise: Continuous rated current 135%, coil temperature rise not exceeding 120 °C (resistance method)

• System voltage: 220, 400, 660, 750, 850V.

•  Rated capacity: The capacity depends on the capacitor capacity, impedance coefficient (6%, 7%, 13%, 14%, etc), and user tuning needs.

•  Capacity error: -0%~+10%.

•  Insulation withstand voltage: below 0.22KV (inclusive), AC 2000V/1 minute. 0.23KV-0.6KV below, AC 4000V/1 minute.

•  Allowable current: 5TH harmonic current content below 35%, synthetic current below 120%.

•  Linearity of reactance value: The ratio of the reactance value at L8times the rated current to the reactance value at the rated current shall not be less than 0.95, and the difference between the reactance values of any two phases of a three- phase reactor shall not exceed ±3%.

• Insulation level: H level (180°C)

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