The instrument mainly has the following characteristics:
l Large LCD Chinese display
Simple operation: the instrument is equipped with a high-end full-touch LCD screen and a large full-touch operation interface. Every process is very clear and understandable, and operators do not need additional professional training to use it. A gentle tap completes the entire measurement process, making it an ideal intelligent dielectric loss measurement device.
l Massive data storage
The instrument is equipped with a calendar chip and large-capacity memory, storing up to 200 sets of data. Test results can be saved in chronological order, and historical records can be viewed at any time and printed out.
l Scientific and advanced data management
Data from the instrument can be exported via a USB drive and can be viewed and managed on any PC using our company's dedicated software.
l Multiple test modes
The instrument can test using internal high voltage, external high voltage, internal standard, external standard, positive connection, reverse connection, self-excitation, and other methods. In external standard and external high voltage modes, it can perform dielectric loss measurements at high voltages (greater than 10kV).
l One-step CVT testing
The instrument can also test the dielectric loss and capacitance of fully sealed CVTs (capacitor voltage transformers) for C1 and C2, achieving simultaneous testing of C1 and C2. It can also test the CVT ratio and voltage phase difference.
l Measure CVT without removing high-voltage leads
The instrument can accurately measure the dielectric loss and capacitance of a CVT without removing its high-voltage leads.
l CVT reverse connection shielding method for measuring C0
The instrument can use the reverse connection shielding method to measure the dielectric loss and capacitance of the C0 at the top of a CVT.
l High-speed signal sampling
The inverter and sampling circuits inside the instrument are fully digitally controlled, and the output voltage is continuously adjustable.
lMultiple protections for safety and reliability
The instrument features multiple protection measures including input voltage fluctuation, high-voltage current, output short circuit, power supply failure, overvoltage, overcurrent, and temperature, ensuring the instrument is safe and reliable. It also has a grounding detection function to ensure that voltage cannot be raised on ungrounded equipment.
Product details:
The KTJSY-B dual-frequency high-voltage dielectric loss tester is a high-precision testing instrument for measuring the dielectric loss tangent and capacitance of various high-voltage power equipment in power plants, substations, or laboratories. It features an integrated structure, with a built-in dielectric loss test bridge, variable-frequency voltage-regulating power supply, step-up transformer, and SF6 high-stability standard capacitor. The high-voltage test source is generated by the internal inverter and stepped up by the transformer for testing the specimen. The frequency can be varied to 50Hz, 47.5Hz, 52.5Hz, 45Hz, 55Hz, 60Hz, 57.5Hz, 62.5Hz, 55Hz, 65Hz, using digital notch technology to avoid interference from power-frequency electric fields, fundamentally solving the problem of accurate measurement under strong electric field interference. It is also suitable for testing with generator power supply after a complete power outage. The instrument can be equipped with an insulating oil cup and temperature control device to test the dielectric loss of insulating oil.
