Hv Sf6 Gas Type Hipot Testing Transformer / 15kvA 50KV Hipot Tester Long Life

YDQ series  Sf6 Gas Type Hipot Testing Transformer 

Product presentation :

Compared with the traditional oil-immersed light test transformer, the YDQ series inflatable test transformer has a weight reduction of 40-65% (depending on the voltage and capacity level) and no oil pollution. The voltage level of a single test transformer can be reached. 300KV. Thanks to the new production process, the technical performance of the product has been greatly improved, and it is especially suitable for use in field work and frequently moving working conditions.

Lightweight instrument especially suitable for on-site work and frequent moving work conditions.

Operating principle:

The power input has an operation box with an overcurrent automatic trip and a zero-position interlock device to prevent sudden pressure. The voltage is adjusted by an auto-coupled voltage regulator to the primary winding of the YDQ inflatable test transformer. According to the principle of electromagnetic induction, the secondary ( High voltage) windings can obtain the same multiples of voltage amplitude-power frequency high voltage according to the ratio of the number of turns to the primary winding. 

Product Features:

1. Easy to use, the inflatable variable volume is small, light weight, the same power is 20% -60% lighter than the variable weight of the oil, at the same time clean, no oil pollution, no maintenance, not affected by harsh weather environment, do not need to stand on the spot Can be tested, the insulation strength is significantly higher than the oil immersion test transformer, the corona is very small.

2. The choice of material and process of the instrument are all new, so not only is it small in size, light in weight, beautiful in appearance, but also all technical indicators have reached the standard requirements of << JB3570-98 >>.

3. Use high-quality materials, use excellent cold-rolled DQ-151 oriented silicon steel sheets to stack into a multi-stage cylindrical frame iron core, and use high-strength insulation cylinders to directly and continuously wind high-voltage tower coils on special high-strength insulation cylinders. The shell is of a suitable size and is filled with SF6 gas.

4. The DC output method is innovative. The instrument cleverly stacks the high-voltage rectifier silicon in the high-voltage sleeve. The insertion and extraction of the short-circuit rod can change whether the YDQ is a power-frequency high-voltage AC output or a high-voltage DC output.

5. Select excellent series-excited winding. The instrument has a series-excited winding on the high-voltage winding, and there are two outgoing structures inside the high-voltage bushing.

6. The test accuracy is high. The instrument is based on the ordinary transformer, improving the process and technology, using different insulation structures, and the extinguishing energy of SF6 gas itself, so that under high voltage, the transformer basically has no partial discharge. When the transformer is used for partial discharge test of electrical equipment for high-voltage power supply, the high-precision partial discharge meter can be used to accurately measure the partial discharge of the test product without interference.

Technical indicators: