High-voltage hipot tester YDJ series

DCfor insulating oilAC

Product Introduction
The YDJ-5/50 oil-immersed AC/DC Hipot Test Set is a 5 kVA dielectric withstand tester with digital display and programmable control. It combines oil-insulated high-voltage transformer technology with modern digital controls to perform AC and DC dielectric strength tests on medium-voltage equipment for industrial, laboratory and field maintenance use.

Product Characteristics

• Oil-immersed high-voltage transformer design for stable high-voltage generation.
• Dual AC/DC Hipot capability with precise digital display and programmable test sequences.
• Compact corona ring and insulation arrangement to minimise partial discharge.
• Multiple input voltage and model variants to match site electrical supply and testing requirements.

Technical Parameters (table)
specifications and models | capacity (kVA) | High Voltage (kV) | high-tension current (mA) | input voltage (V) , input current (A) | ratio of transformation | temperature rise ℃ (30 minutes)
YDJ-3/50 | 3 kVA | 50 kV | 60 mA | 200 V , 15 A | 500 | 10
YDJ-5/50 | 5 kVA | 50 kV | 100 mA | 200 V , 25 A | 500 | 10
YDJ-10/50 | 10 kVA | 50 kV | 200 mA | 200 V , 50 A | 500 | 10
YDJ-20/50 | 20 kVA | 50 kV | 400 mA | 200 V , 50 A | 500 | 10
YDJ-30/50 | 30 kVA | 50 kV | 600 mA | 200 V , 50 A | 500 | 10
YDJ-50/50 | 50 kVA | 50 kV | 1000 mA | 200 V , 125 A | 500 | 10
YDJ-5/100 | 5 kVA | 100 kV | 50 mA | 200 V , 25 A | 1000 | 10
YDJ-10/100 | 10 kVA | 100 kV | 100 mA | 200 V , 25 A | 1000 | 10
YDJ-10/25 | 10 kVA | 25 kV | 400 mA | 200 V , 25 A | 1000 | 10
YDJ-20/100 | 20 kVA | 100 kV | 200 mA | 200 V , 50 A | 1000 | 10
YDJ-30/100 | 30 kVA | 100 kV | 300 mA | 200 V , 75 A | 1000 | 10
YDJ-50/100 | 50 kVA | 100 kV | 500 mA | 200 V , 125 A | 1000 | 10
YDJ-15/150 | 15 kVA | 150 kV | 100 mA | 400 V , 37.5 A | 1000 | 10
YDJ-20/150 | 20 kVA | 150 kV | 133 mA | 400 V , 50 A | 1000 | 10
YDJ-30/150 | 30 kVA | 150 kV | 200 mA | 400 V , 75 A | 1000 | 10
YDJ-50/150 | 50 kVA | 150 kV | 333 mA | 400 V , 125 A | 1000 | 10
YDJ-100/150 | 100 kVA | 150 kV | 667 mA | 400 V , 250 A | 1000 | 10
YDJ-50/200 | 50 kVA | 200 kV | 250 mA | 400 V , 125 A | 1000 | 10
YDJ-100/200 | 100 kVA | 200 kV | 500 mA | 400 V , 250 A | 1000 | 10
YDJ-150/200 | 150 kVA | 200 kV | 750 mA | 400 V , 375 A | 1000 | 10
YDJ-200/200 | 200 kVA | 200 kV | 1000 mA | 400 V , 500 A | 1000 | 10
YDJ-300/200 | 300 kVA | 200 kV | 1500 mA | 400 V , 750 A | 1000 | 10
YDJ-50/300 | 50 kVA | 300 kV | 170 mA | 400 V , 125 A | 1000 | 10
YDJ-100/300 | 100 kVA | 300 kV | 333 mA | 400 V , 250 A | 1000 | 10
YDJ-150/300 | 150 kVA | 300 kV | 500 mA | 400 V , 375 A | 1000 | 10
YDJ-200/300 | 200 kVA | 300 kV | 667 mA | 400 V , 500 A | 1000 | 10
YDJ-300/300 | 300 kVA | 300 kV | 3000 mA | 400 V , 750 A | 1000 | 10

Application Fields

• Power utilities: power plants, substations, transmission and distribution systems.
• Electrical equipment manufacturers and assembly lines.
• Electrical installation, commissioning and engineering companies.
• Maintenance and repair units, third-party test labs and university research labs.
• New energy sectors: wind, PV, energy storage; railway and urban transit; large industrial plants.

Frequently Asked Questions

• What is an oil-immersed test transformer used for? — To supply AC high voltage for dielectric withstand tests on transformers, cables, switchgear, insulators and circuit breakers.
• Is operation complicated? — No. With a control console or automatic control system, operation is straightforward and can be learned after basic training.
• Why choose this product/supplier? — Offers multiple models and configurations, programmable digital control, OEM/ODM options and certified manufacturing (see supplier information).

Technical specifications

• Brand: UHV Power (Wuhan UHV Power Technology Co., Ltd.)
• Series: YDJ (oil-immersed, digital display)
• Shown model: YDJ-5/50 — 5 kVA, 50 kV
• Function: AC/DC Hipot dielectric withstand testing
• Control: Digital display with programmable test sequences
• Intended use: Medium- and high-voltage equipment testing, industrial and laboratory environments