This product has the characteristics of low no-load loss, low no-load current, low noise, and remarkable power saving effect. It improves the voltage quality and reliability of power supply. It is a green energy-saving product of environmental protection and a city.

The latest products for technical transformation and engineering popularization of rural power grid.

The S13-M.RL and S11-M.RL series fully sealed three-phase coiled core transformers produced by our company are different from the traditional planar laminated core transformers. Its core is three-dimensional with a single frame.

The triangular arrangement of three-phase cylinder yoke is composed. Each cylinder is continuously rolled by high quality cold rolled silicon steel strip, and its bandwidth is cut straight or curve by NC tapping machine. The composition of the strip is close to that of the core winding machine.

The circular or folded circular arc frame is annealed by vacuum nitrogen filling to eliminate the processing stress, reorient the lattice, increase the permeability and improve the electromagnetic performance. The high and low voltage coils are made by special winding machine.

The whole structure is solid and compact. The body is insulated by upper and lower yokes and laminated wood. The coils are tightened by pulling screw around the body to make it stable and reliable, and can withstand sudden short circuit.

Impact force.

1. iron core

The material properties are not less than 30ZH110 cold-rolled silicon steel sheets; three-phase three-column three-dimensional symmetrical structure has the most balanced three-phase magnetic circuit; each group of core sheets is wound by thin steel strips on a special core winding machine, with uniform and compact pressure; the core frame sheets are annealed in vacuum to eliminate stress and improve electromagnetic properties; the surface of core is coated with epoxy paint, moisture-proof and solidification.

2. winding

T 2 conductive copper foil and QQ-2 acetal enameled copper wire made of oxygen-free copper are used; low-voltage coil is foil type, high-pressure coil is multi-layer cylinder type; coil oil channel is corrugated structure, and interlayer insulation is double-sided dispensing paper; epoxy resin semi-viscous glass fiber tape is wound on both low-pressure and high-pressure surfaces to increase mechanical strength.

3. Body and lead

Insulated cardboard is used to make upper and lower yoke insulation; laminated wood is used to make balance pad insulation; laminated cardboard is used as lead bracket; all fasteners are effective locking anti-loosening nuts.

4. fuel tank

The fully sealed corrugated tank with triangular structure is equipped with corrugated sheets on three sides to ensure heat dissipation and compensate for the expansion and contraction volume caused by oil volume variation with oil temperature change; the oil level gauge with pressure relief valve on the cover of the tank is convenient for refueling and observing the oil level height, and for the safety protection of pressure release when transformer internal sudden fault overvoltage occurs.