Products Description
product Overview
The HMCXZ-1500kVA/500kV Variable-Frequency Series Resonance Test System is specifically designed and manufactured for AC withstand voltage testing of 35kV, 110kV, and 220kV power transformers and power system equipment.
The unit primarily consists of a frequency-converted power supply, an excitation transformer, a high-voltage reactor, and a capacitive voltage divider. It features a newly upgraded 32-bit RISC processor with a Linux kernel and a large-screen true-color display that can display real-time resonance, voltage-rise, and timing curves. With enhanced protection sensitivity, the unit supports dual power inputs of 220V/380V, making it less restricted by on-site power supply conditions, offering broader applicability and more convenient operation.
Technical Parameters
a) Rated capacity: 1500 kVA
b) Input power: Single-phase 220 V/380 V, 50 Hz
c) Rated voltage: 500 kV
d) Rated current: 3 A
e) Operating frequency: 30–300 Hz
f) Waveform distortion: Output voltage waveform distortion ≤ 1%
g) Operating time: Continuous operation for 60 minutes at rated load
h) Temperature rise: Temperature rise ≤ 65 K after 60 minutes of continuous operation at rated load
i) Quality factor: Device Q ≥ 30 (f = 45 Hz)
j) Protection functions: Provides overcurrent, overvoltage, and flashover protection for the test specimen (see the variable-frequency power supply section for details)
k) Measurement accuracy: System RMS accuracy Class 1.5
FAQs
Q: Which generation of equipment is this? What are its advantages?
A: Fourth-generation upgraded model
Equipped with a 32-bit RISC CPU and a streamlined Linux kernel, it features a large-screen true-color display capable of showing resonance, boost, and timing curves in real time, with more sensitive protection.
Q: What are the maximum specifications and distances for 35 kV cable withstand voltage tests?
A: It can perform withstand voltage tests on 35kV power cables up to 2 km in length and 300 mm² in cross-sectional area.
Q: What are the continuous operating time and temperature rise requirements?
A: It can operate continuously for 60 minutes under rated load, with a temperature rise of ≤65K after 60 minutes of operation.
Q:What is the device's quality factor (Q-value)?
A: Under 45 Hz operating conditions, the intrinsic quality factor (Q) is ≥30.
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