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HZJ & HZJZ Oil Type Testing Transformer
I.Introduction
The test transformer calls the booster, it is the basic
test equipment used by the power station, supplying and
distributing the electrical power system and the scientific
research unit. Which used in the insulated intension test on
all kinds of electrical products, electrical equipments and
insulated materials, testing the insulated level of products,
discovering the insulated objection of quizzee, scaling the
capacity burdened voltage.
II.Structure
They make up of the high quality cold rolling silicon
steel piece by HZJ alternating current test transformer,
HZJZ alternating and direct current amphibious light high
voltage test transformer. The winding is the
concentric pagoda
and multilayer
cylindrical type, low-voltage winding in inner, high-voltage winding in outside; Outer
cover is portable which has characteristics, such as volume smallness, weight light, the
shape prettiness and move convenience and so on.
III.Principle Of Work
Connecting the control unit (it is the supplementary equipment of test transformer,
detailed see the explaining book) with work frequency 220V (above 10KVA with 380V),
adjusting 0-220V/380V voltage input to HZJ (HZJZ) test transformer primary winding
through autotransformer. According to the principle of electromagnetic influence, the
secondary (high voltage) winding may gain the same multiple voltage value than the
primary winding with the circle rated that is the high frequency voltage of work frequency.
It can obtain the direct current high frequency voltage after commuted by high frequency
voltage silicon stack and filtrated by capacitor, among whose amplitude value is the 2
times value of work frequency.
