What’s the difference between VLF and Hi-pot test?
VLF testing uses very low frequency AC voltage and is the preferred, safer method for testing modern cables like XLPE. DC Hipot testing uses direct current and can damage these cables.
How does discharge rate affect battery capacity?
Tired of batteries underperforming or failing unexpectedly? This costs you time and money when critical systems don’t last as long as planned. Understanding the discharge rate[^1]’s impact is vital. Discharging a battery at a higher rate generally reduces its available capacity compared to a slower discharge. This happens because faster discharging increases internal losses like […]
10kV Tan Delta Test VS Oil Tan Delta Test: Which Method Is More Effective?
10kV dielectric loss testing and oil dielectric loss testing are critical insulation assessments in power systems. The 10kV dielectric loss test provides a comprehensive evaluation of the transformer’s insulation system, considering the performance of the entire insulation structure, including winding insulation, core insulation, and insulating oils under actual operating voltage.
How to test Hight Voltage Circuit Breaker ?
Through the acceptance test for electrical testing of High voltage circuit breaker, the performance indexes of the equipment can be comprehensively tested, potential defects and hidden dangers can be found in time to ensure that the equipment can work stably and reliably for a long time after it is put into operation.
What Are the Best Voltage Withstand Test Methods for Power Cables?
This article mainly discusses the test methods of oil-impregnated paper-insulated cables, plastic-insulated cables and cross-linked polyethylene cables, and the common electrical tests include DC withstand voltage and leakage current tests, VLF withstand voltage tests, Power frequency AC resonance withstand voltage testing , partial discharge tests and so on.
What is rated power frequency withstand voltage?
Rated frequency withstand voltage is the maximum voltage that electrical equipment or its insulation system can safely handle during normal operation at the rated frequency (such as 50Hz or 60Hz). Under this voltage, the equipment can operate normally without experiencing insulation breakdown or other failures.
What is the difference between transformer “Type testing”and “Factory acceptance testing”(FAT)?
we will analyze the differences between transformer type testing and transformer factory acceptance testing in terms of standard basis, test items, parameter requirements, and criteria for passing judgment. This analysis aims to provide valuable references and guidelines for the design, manufacture, acceptance, operation, and maintenance of transformers.
What is battery charger discharger ?
A battery charger discharger is an advanced piece of equipment designed to perform two critical tasks: charging a battery to its full capacity and discharging it to measure performance, capacity, and other key parameters. These systems are commonly used for testing and maintaining batteries in various applications, ensuring their optimal operation and longevity.
How Battery Test Equipment Supports the Power Systems
Battery test equipment is essential for maintaining the reliability and performance of batteries in backup power systems. These tools play a crucial role in ensuring that batteries function as expected during critical moments and remain in optimal condition throughout their lifecycle.
BDV test of transformer oil
The dielectric strength test for transformer insulating oil is an electrical performance evaluation defined as the measurement of the maximum voltage that the oil can withstand between two electrodes under specified test conditions before electrical breakdown occurs
Vietnamese 
English 
Arabic 
Thai 
Italian 
Spanish 
Korean 
Portuguese 
French