YDQ Inflatable AC DC Hipot Tester

• 1、The inflatable test transformer is small in size，in light weight(It is 40%-65 lighter than the same grade oil-immersed transformer)

• 2、spotless，greaseless，There is no need to maintain

• 3、Free from adverse weather and environment，The field transport should be stationary and can be tested

• 4、The insulation strength is obviously higher than that of oil-immersed transformer，Minimal corona

• 1、AC/DC High-Voltage Output: It generates high-voltage AC output for power frequency withstand tests. By using an optional high-voltage silicon stack, it can also provide DC high-voltage output for leakage current and withstand tests.

• 2、SF6 Gas Insulation: The transformer uses SF6 (sulfur hexafluoride) gas as its insulating medium, providing superior dielectric strength and arc-quenching properties compared to oil or air.

• 3、Wide Range of Models: The YDQ series is available in a wide range of capacities from 1kVA to 500kVA and output voltages from 10kV up to 300kV, with multiple product types available, including AC, AC/DC, AC cascade, and AC/DC cascade versions.

• 4、Simple and Reliable Operation: The system is designed for straightforward setup and operation, typically controlled via a separate control console with overcurrent protection and zero-start interlock.

• 1、Superior Portability: The SF6 gas insulation allows for a significantly more compact and lightweight design, with the unit weighing 40-65% less than oil-immersed transformers of the same rating. This is a major advantage for frequent field use.

• 2、Maintenance-Free Operation: As a gas-insulated unit, it is "spotless and greaseless," requiring no oil-level checks, filtration, or leak monitoring, which saves time and eliminates the risk of oil spills.

• 3、Excellent Insulation Performance: The SF6 insulation provides higher dielectric strength with minimal corona discharge, ensuring reliable test results and a long service life.

• 4、Environmental Adaptability: The sealed gas system is resistant to adverse weather conditions, making it reliable for outdoor testing in various climates.

• 1、Dielectric Testing of High-Voltage Equipment: It is commonly used for AC and DC withstand voltage tests on power transformers, circuit breakers, GIS (Gas Insulated Switchgear), power cables, and bushings

• 2、Quality Control and Manufacturing: Employed by manufacturers for factory testing and quality assurance of electrical components and insulating materials.

• 3、Utility Commissioning and Maintenance: Used by power utilities for commissioning new equipment and performing routine preventive maintenance testing in substations and power plants.

• 4、Field and Laboratory Testing: Its portability makes it ideal for on-site field testing, while its precision makes it suitable for use in high-voltage testing laboratories and research institutions.

• 1、What is the main difference between the YDQ (Gas Type) and YDJ (Oil Immersed) hipot testers?
  The primary difference is the insulation medium. The YDQ uses SF6 gas, making it significantly lighter and more compact (40-65% lighter) and maintenance-free, whereas the YDJ uses oil, which is heavier and requires regular maintenance. The YDQ is better suited for frequent field use.
• 2、What are the key advantages of SF6 gas insulation?
  SF6 gas offers superior dielectric strength, allowing for much smaller and lighter transformers. It is non-flammable, chemically inert, and maintenance-free, eliminating oil-related issues like leaks, filtering, and regular testing.
• 3、Can this tester perform both AC and DC tests?
  Yes, the YDQ series is available as an AC/DC model. When configured with an optional high-voltage silicon stack (rectifier), it can provide both AC and DC high-voltage outputs for comprehensive testing.
• 4、What safety features are included?
  The tester is used with a control console that includes overcurrent protection and zero-start interlock to ensure safe operation. The unit also features overload and short circuit protection.
• 5、What are the typical applications for this tester?
  It is used for dielectric withstand testing on a wide range of high-voltage equipment, including power transformers, circuit breakers, cables, GIS, and insulators, in both factory and field environments.

Enterprise products in strict accordance with international and national standards and rules of industry production, through the national, provincial and municipal electric power research institute and electric power authorities detection, measuring center, fully passed the ISO9001 international quality management system certification, the licence for manufacturing measuring instruments of the People's Republic of China, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, GB/T45001-2020 occupational health and safety management system requirements.

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