The common causes of faults in dielectric loss testers can be summarized as follows:1. Poor contact① Poor hook contact: When using a hook to connect the test sample during on-site measurement, if there is poor contact between the hook and the test sample, the discharge at the contact point will…

To easily deal with several major faults of high-voltage dielectric loss testers, you can start from the following aspects:1. Poor hook or ground contactPhenomenon: The test data fluctuates significantly, and the instrument may be protected.Reason: Poor contact between the hook and the test sample, or the presence of paint, rust,…

Dry type test transformers and inflatable test transformers have their own advantages and disadvantages, and the selection should be based on specific application scenarios and requirements:① Advantagesa. High safety: using epoxy resin vacuum casting and CD magnetic core technology, oil-free design to avoid fire and explosion risks, especially suitable for…

The Time Travel Curve (T-T curve) is the core result of high-voltage switch dynamic characteristic testing. By recording the changes in contact displacement over time, it intuitively reflects the mechanical motion trajectory during the opening and closing process of the switch, and can be called the "electrocardiogram" of the switch's…

The high-voltage switch dynamic characteristic tester is widely used in multiple key scenarios of the power system. Its core application scenarios cover equipment maintenance, fault analysis, equipment research and development, on-site emergency response, training and teaching, and quality inspection. The following is a specific analysis:1. Power system maintenanceIn the daily…

The high-voltage switch dynamic characteristic tester uses multi physical quantity synchronous acquisition and high-speed signal processing technology to capture the mechanical motion and electrical characteristics of the switch opening and closing process in real time, generate time stroke curves, and calculate key parameters. Its working principle can be decomposed into…

The transformer winding deformation tester quantitatively evaluates the mechanical state of the winding through frequency response analysis (FRA), and is suitable for the following specific scenarios, covering the full life cycle management requirements of the equipment. The following analysis is conducted according to the application scenario classification, detection purpose, typical…

The transformer winding deformation tester can detect various types of faults, as follows:1. Winding deformation fault:Main types: including winding distortion, bulging, displacement, tilting and other mechanical deformations.Detection principle: The transformer winding deformation tester uses frequency response analysis (FRA) to detect the response changes of the winding in different frequency domains,…

The main reasons why the comprehensive tester for variable frequency transformers is popular in the market are as follows:1. Fully functional and powerful① Satisfy various testing requirements: The frequency conversion transformer comprehensive tester can meet the excitation characteristics (i.e. volt ampere characteristics), transformation ratio, polarity, secondary winding resistance, secondary load,…

The advantages and functions of the variable frequency transformer comprehensive tester are mainly reflected in the following aspects:1. Fully functional:The frequency conversion transformer comprehensive tester can meet various testing needs for CT (such as protection, metering, TP) excitation characteristics (i.e. volt ampere characteristics), transformation ratio, polarity, secondary winding resistance, secondary…