Product Features
The ZSVLF series 0.1Hz program-controlled ultra-low frequency high voltage generator combines modern digital frequency conversion advanced technology, adopts microcomputer control, and fully automates voltage boosting, voltage reduction, measurement, and protection, with manual intervention possible during automatic voltage boosting. Due to full electronic design, it is small in size and light in weight, with a large-screen LCD display that is clear and intuitive, and can display the output waveform. The printer outputs the test report. The design indicators fully comply with the "General Technical Conditions for Special Test Instruments for Power Equipment, Part 4: General Technical Conditions for Ultra-Low Frequency High Voltage Generators" power industry standard, and it is very convenient to use.
Product Introduction
Currently, both domestic and international methods use mechanical modulation and demodulation to generate ultra-low frequency signals, resulting in non-standard sine wave waveforms, large measurement errors, spark discharge in the high voltage part, bulky equipment, and the need for high-power high-voltage resistors for discharge shaping in the second and fourth quadrants of the sine wave, leading to high overall power consumption. This product overcomes these shortcomings.
Product Parameters
ZSVLF-70/0.5 | 70kV (Peak) | 0.1Hz, ≤0.5μF | 10A | Controller: 5kg First-stage booster (30kV): 25kg Second-stage booster (40kV): 50kg |
0.05Hz, ≤1μF | ||||
0.02Hz, ≤2.5μF |
Single-phase ground capacitance of different types of generators
Model | Turbine Generator | Hydro Generator | |||||
Generator Capacity (MW) | 200 | 300 | 600 | 85 | 125-150 | 300 | 400 |
Single-phase ground capacitance (μF) | 0.198 | 0.18-0.26 | 0.31-0.34 | 0.69 | 1.8-1.9 | 1.7-2.5 | 2.0-2.5 |
Capacitance of cross-linked polyethylene insulated single-core power cables (μF/km)
Cross-section mm2 Capacitance μF/km Voltage kV | 16 | 25 | 35 | 50 | 70 | 95 | 120 | 150 | 185 | 240 | 270 |
10 | 0.15 | 0.17 | 0.18 | 0.19 | 0.21 | 0.24 | 0.26 | 0.28 | 0.32 | 0.38 | - |
35 | - | - | - | 0.11 | 0.12 | 0.13 | 0.14 | 0.15 | 0.16 | 0.17 | 0.19 |
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
