アドフォクス List of Products and Services

Partial discharge and corona discharge have been known for a long time, but recently they have suddenly become a problem. The reason for this is related to the rapid spread of inverter circuits due to the evolution of electronic technology and the demand for energy efficiency. This document discusses "the causes of failures lurking in power switching circuits," along with the relationship between partial discharge, corona discharge, and includes photographs and diagrams. Additionally, it also covers countermeasures for partial discharge and corona discharge. 【Contents (excerpt)】 ■ Introduction ■ Products using inverters may have partial discharge and corona discharge ■ Partial discharge, corona discharge, and insulation breakdown ■ Methods for detecting partial discharge and corona discharge ■ Let's forget the conventional wisdom of insulation, etc. *For more details, please refer to the PDF document or feel free to contact us.

• others

Partial discharge and corona discharge, which occur frequently in high-frequency and high-voltage components, degrade insulation performance and can lead to defects. However, due to the low voltage, they cannot be detected in standard product inspections. To identify the causes of insulation failure, we offer rental of the "Partial Discharge and Corona Discharge Testing Machine XT Series." For more details, please contact us.

• Rental/lease

Partial discharge and corona discharge, which often occur in high-frequency and high-voltage components, can degrade insulation performance and cause defects. However, due to the low voltage, they are not typically detected in standard product inspections. To uncover the invisible causes of insulation failures, we recommend our contracted inspection services. Please contact us for more details.

• Contract Inspection

Various winding components such as coils and transformers are widely used in products that make life more convenient. Recently, the number of inverter products has also increased, which utilize high-frequency and high-voltage components. Adfox is researching and developing the measuring instruments necessary for ensuring the quality of these products.

• Insulation Tester

A compact and lightweight high-frequency, high-voltage transformer insulation testing machine with excellent operability! You can appropriately set and measure the insulation level. 【Features】 ■ Easily measure partial discharge and corona discharge ■ Insulation levels can be appropriately set and measured ■ All winding components such as coils, transformers, and motor coils can be insulation tested ■ High voltage generation is performed using IGBT, allowing for a dense pulse interval (1000 pulses/second) to avoid missing partial discharge and corona discharge ■ Measurement pulses are conducted at a high speed of 1000 pulses/second, ensuring reliability in about 2 seconds ■ The IGBT method, unlike the thyristor method, detects partial discharge and corona discharge without being affected by the switching elements For more details, please inquire.

• Testing Equipment and Devices

This is a partial discharge and corona discharge testing machine that responds to changes in load capacity through capacitance tuning with continuous sine waves.

• Other environmental analysis equipment

A partial discharge and corona discharge testing machine that generates an arbitrary frequency (30k to 80kHz) and an arbitrary voltage (0 to 5kVrms, No Load) at the HV terminal to inspect for the presence of partial discharge, corona discharge, and spark discharge in the object being tested.

• Testing Equipment and Devices

A partial discharge and corona discharge testing device that can detect partial discharges and corona discharges without being affected by switching elements.

• Testing Equipment and Devices

Partial discharge and corona discharge testing machine with built-in high voltage generation transformer.

• Testing Equipment and Devices

Partial discharge and corona discharge testing machine capable of displaying high voltage current values.

• Testing Equipment and Devices

This is an introduction to the partial discharge and corona discharge testing equipment handled by Adfox Corporation.

• Testing Equipment and Devices

A turn ratio and inductance measuring device that performs Pass/Fail judgment by comparing with pre-entered reference values.

• Other measurement, recording and measuring instruments

Inductance/balance measuring instrument that displays the balance of L1 and L2 as a percentage along with a digital display.

• Other measurement, recording and measuring instruments

Partial discharge and corona discharge testing machine that enables inspection of components using ultra-high frequency and ultra-high voltage.

• Testing Equipment and Devices