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, overview:
35kV transformer used for 35kV power supply directly reduced to 400V or 10KV transmission power distribution power supply for power supply. Because of its significant advantages, more and more engineering by.
35kV transformer characteristics:
In 1, high performance, low loss, for the type 9 series products.
In 2, the configurable temperature control system and cooling device, the load is too large to automatically start fan cooling device, effectively improve equipment overload capability.
3, optimize the high-voltage coil structure, improve the voltage between layers and the capacitance of the distribution, greatly improving the product tolerance atmospheric overvoltage and overvoltage impact ability, but also improve the electric field distribution, so that the product of PD to further reduce.
4, selection of high quality silicon steel sheet, while substantially reducing magnetic flux density, reducing the operation of silicon steel sheet magnitude of magnetostriction, effectively reduces the noise. ER
35 / 0.4kV transformer main advantages:
In 1, save the engineering investment, raise economic benefits.
In 2, 35KV power directly into the power center, effectively improve the reliability of power supply.
In 3, reduction of 10KV transmission link, make the operation and maintenance cost are obviously reduced.
4, reduce the land occupation and multiple variable electric engineering construction, and has obvious social benefits.
In 5, the high voltage and low current for low voltage large current transmission, reduce line losses, reduce line running cost;
35 / 10kV transformer characteristic:
In 1, low loss, energy saving. Especially the no-load loss is reduced greatly, more than the national standard GB / T6451-1995 decreased on average about 25%.
2, the core of all imported high-quality cold-rolled silicon steel sheet, the German company GEORG transverse shear line, cutting burr < 0.02, sloping seam, punching, not folded up iron yoke process; core column pile with double H viscose make core three column two yoke into a fastening, smooth, compact overall, effective to reduce the no-load loss of the transformer, the no-load current and noise.
In 3, the transformer coil using high purity oxygen-free copper, effectively reduces the copper loss, pad, a fillet, even electric field, increasing reliability. The inner winding support to strengthen, improve its stability and prevent buckling deformation. The capacity to reach more than 12500kVA products, both inside and outside the coil adopts the unified whole plate and the platen to the coil assembly are pressed at the same time, ensures that the axial each coil height size consistency, improve the ability of resisting sudden short circuit of transformer. Disposable products through the national sudden short-circuit test.
4, plate clamping piece and the side beams to form a firm frame structure, the transformer body and the tank" six rigid positioning", so that the body can withstand all kinds of transport under conditions of shock test without displacement. Products during transportation impact if less than the specified value, then the field without hanging core check test operation, reduces the amount of work site hanging core.
In 5, the tank wall with steel strip, composed of large compressor pressure off into" corrugated", reducing the welding seam, increases the mechanical strength, large radiating area, improves the radiating effect, at the same time the corrugated box wall to avoid acoustic reflecting play the role of reducing noise. The overall appearance is concise transformer.
In 6, the capsule type oil storage cabinet, effectively slowing the transformer oil aging degree; pointer type oil level gauge can avoid false oil-level phenomenon and completely solve the transformer oil as aging problem; with gas gathering device of gas relay, convenient maintenance and operation; the radiator and large diameter low speed low noise fan, improve cooling effect, reducing the noise.
In 7, the original traditional sealing structure, particularly prone to leakage of oil in place, from material procurement control, ensure that steel does not rust, bump, scratch, hammer, on the sealing part of special processing, and the body of the whole shot peening, complete removal tank produced in the processing of the sharp burr, welding slag, and the paint adhesion strengthening.