Power Frequency AC Voltage Withstand Test

Our company,鄂电电力, has developed and produced an AC voltage withstand resonance test device for generators, which includes generator AC withstand voltage test, generator withstand voltage test, power frequency AC withstand voltage test, generator withstand voltage test equipment, and generator series resonance equipment. The AC voltage withstand test device for generators is designed for individual unit capacities ofTesting for power frequency AC withstand voltage of hydro-generators with capacity of 250MW and below.

Generator Alternating Voltage Withstand Test Device Technical Principle: With the development of the power system, the capacity of operating equipment is increasingly large, such as thermal power generation units, with individual unit capacity exceeding...1000MW Hydropower Generator Set, with individual unit capacity reaching up to 800MW; the alternating current (AC) frequency withstand tests for these equipment, if traditional test equipment (i.e., AC test transformers) is used, then due to the large capacity required for the tests, the transformers and voltage regulators are extremely heavy, and it's also difficult to find a large-capacity test power supply on-site, making field testingExtreme.Inconvenient. The industrial frequency resonance device has several drawbacks, including its test power capacity, equipment weight, test waveform, and investment considerations.Extreme.Significant Advantages. The device is primarily designed for single-unit capacities ofDesign and manufacturing of AC withstand voltage tests for hydrogenerators of 250MW and below.

Dielectric Strength Test, also known as Voltage Proof Test

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Communication With Dielectric Withstand Test Function

1. Due to resonant reactive power compensation, the power of the power supply and equipment is less than 1/10 (1/Q10) of the tested item's required capacity; the same capacity has a smaller volume and lighter weight, the device's output capacity is large while the required power supply capacity is small, it's cost-effective, and it's easy to use and safe.

2. The AC withstand voltage test device for generators is essentially a current filtering circuit, ensuring that the current passing through the tested item is primarily the fundamental frequency current, with the output voltage waveform distortion rate (THD)Extreme.Small, superior to all existing types of communication pressure equipment

3. Short-circuit current after sample flashover or breakdown is less than 1/10 (1/Q) of the test current before short-circuit, effectively preventing the damage to the fault point from expanding after breakdown.

4. The immediate automatic arc quenching after flashover, followed by a longer (in seconds) process of voltage restoration to the resonant state, is a stable establishment process. There is no concern for voltage overshoot, nor is there any danger of recovery overvoltage from microsecond or millisecond transient processes.