Test Devices Delivers Its Largest Rig to Chinese Institute

October 1, 2012

Test Devices recently completed the design and delivery of the largest rig it has ever built, delivering it to its new owner in China.

Test Devices completed the “extra large” spin test rig for one of the engine development institutes of Aviation Industry Corporation of China (AVIC) this summer. With a 100″ (2.5 meter) test chamber opening, it is the largest test machine Test Devices has ever built.

The spin test machine has a specially designed lid lift and rotator, allowing easy access to the working side of the massive 2.5 meter lid, which weighs over 7,500 lbs. In addition to the lid, the elevator must lift and rotate the electric motor and gear box, as well as the test equipment that may be tested in the machine.

“This project offered an opportunity to create a standard machine design for a large footprint machine, which we can offer to other customers” said Hiro Endo, Vice President of Engineering. The heavy-duty lid lift, rigid lid design and other components reflect an expansion of the offering and design space for vertical axis spin-testing machines.

“AVIC turned to Test Devices because our advanced equipment and technology is giving them the advantages they need to compete on a global scale,” said Rob Murner, Test Devices President. “Our equipment and experienced personnel provide sophisticated test capabilities that more realistically simulate actual engine conditions, offer greater data integrity and cost less than other traditional testing methods.”

Transformer Iron Core Earth Grounding Leakage Current Tester

The RD8100B transformer core grounding current tester can measure the transformer core grounding current and leakage current online (range: 0.00mA~100A).The current clamp is made of magnetic shielding material with strong anti-interference ability. The inner diameter of the clamp is 80mm×80mm. It can clamp cables or ground wires below Φ80mm or 96mm×4mm Flat steel ground wires. It is not necessary to disconnect the measured line, that is, to measure the line current.The instrument is equipped with 3.5-inch color touch LCD screen, two operation modes of touch and button, real-time display of measured current size and waveform, alarm threshold setting and alarm indication function, setting automatic shutdown function.The normal operation of the transformer core is single point grounding. If two or more points are grounded at the same time, a current loop will be formed between the core and the earth, and the maximum current can reach tens of amperes, which will cause local overheating or even burning of the core.The instrument can find the latent fault of transformer as soon as possible, and is one of the main tools to ensure the safe operation and normal maintenance of transformer. It is mainly suitable for leakage current test of iron core and clamp of transformer, reactor and other electrical equipment in substation and power plant