RSGTB Dry Type High-voltage Testing Transformer is one of the important product for testing the performance of electrical equipment. It is widely applicable to the power system, rural power, railway, oil field, substation, (hydro) power plant ,mine enterprises, high-tension laboratories of colleges and scientific research units. The product can test the insulating strength of different kinds of electrical equipment, electrical elements and insulating materials, etc., check the product insulation level, find insulation defects of the test objects, and evaluate the capability of insulating materials of products in withstanding internal and external over voltage.
This series of dry type high-voltage testing transformer use advanced insulating materials and high quality magnetic alloy materials, it's produced by epoxy vacuum casting and new process of CD type iron core. Compared to the similar product of oil-immersed transformer, it has a lot of advantages like damp proofing, dust fastness, flame retardancy, low loss and low noise, and qualitatively, this new design improves the insulating strength, meanwhile it can withstand the short circuit impulse current without damaging the equipment. The product has small volume, light weight, attractive appearance, stable performance, and portability for site operation, it is currently an upgraded new AC-DC high-voltage testing transformer in China. It passed the test from the National Center for High Voltage Measurement, according with ZBK41006-89 standard requirement.
1. This dry type testing transformer has small volume, light weight, and compact structure, has no oil leakage, and is maintenance-free
2. The wiring is simple and intuitive, easy operation
3. It has good insulating reliability and good-looking appearance
4. It has the over-voltage protection function
Our company has successfully researched the inflatable light-weight testing transformer after years of efforts. Compared to the traditional oil-immersed light-weight testing transformers, this series of products is 20%-60% lighter (depending on the voltage and capacity levels), and has no oil contamination. The voltage level of single testing transformer can reach to 300kV. Because of using of the new production process, the product technical performance is much improved, and the product is especially applicable to the use under the site working and frequent moving.
No-load current to transformers of different voltage level: 4-9%
Impedance voltage: 4-10%