Transformer Oil Dielectric Strength Tester

The GDYJ-501 is a high-accuracy dielectric strength tester for transformer and insulating oils, offering reliable breakdown voltage analysis up to 100 kV.

The GDYJ‑501 Transformer Oil Dielectric Strength Tester is a fully automated instrument designed to assess the insulation quality of transformer oils, capacitor oils, and other dielectric fluids. It provides an 0–100 kV voltage range, programmable voltage ramping, instant digital readouts, and built-in safety protection mechanisms. The device complies with international standards such as IEC 60156 and ASTM D1816/D877, making it suitable for power plants, utility labs, maintenance workshops, and research facilities. With CE and ISO certification, it ensures dependable performance and operator safety during high-voltage breakdown testing.


Key Features:

  • Voltage testing range: 0–100 kV

  • Fully automatic testing with programmable cycles

  • Digital real-time display and auto-stop protection

  • Ideal for transformer, capacitor, and insulating fluid testing

  • Meets IEC 60156 and ASTM standards

  • CE and ISO certified for accuracy and safety


Product Table (English)

Model Number Voltage Range Power Supply Certifications Functions Prices
Model 1: GDYJ‑501 0–100 kV AC 220 V CE, ISO Certified Dielectric breakdown testing for insulating oils $1,500 → 5,625 SAR (≥ 1 pc)

Images may vary slightly from the actual product depending on the model. Please review the description before ordering.

6٬105٫00 ر.س.‏
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The GDYJ‑501 Transformer Oil Dielectric Strength Tester is a fully automated instrument designed to assess the insulation quality of transformer oils, capacitor oils, and other dielectric fluids. It provides an 0–100 kV voltage range, programmable voltage ramping, instant digital readouts, and built-in safety protection mechanisms. The device complies with international standards such as IEC 60156 and ASTM D1816/D877, making it suitable for power plants, utility labs, maintenance workshops, and research facilities. With CE and ISO certification, it ensures dependable performance and operator safety during high-voltage breakdown testing.


Key Features:

  • Voltage testing range: 0–100 kV

  • Fully automatic testing with programmable cycles

  • Digital real-time display and auto-stop protection

  • Ideal for transformer, capacitor, and insulating fluid testing

  • Meets IEC 60156 and ASTM standards

  • CE and ISO certified for accuracy and safety


Product Table (English)

Model Number Voltage Range Power Supply Certifications Functions Prices
Model 1: GDYJ‑501 0–100 kV AC 220 V CE, ISO Certified Dielectric breakdown testing for insulating oils $1,500 → 5,625 SAR (≥ 1 pc)

Images may vary slightly from the actual product depending on the model. Please review the description before ordering.

Products specifications
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Warranty Product warranty