SZ 11-M Series Three Phase Oil Immersed Distribution Transformer
SZ 11-M Series Three Phase Oil Immersed Distribution Transformer

SZ 11-M Series Three Phase Oil Immersed Distribution Transformer

The iron core is made of high-permeability grain-oriented cold-rolled silicon steel sheet. Fully oblique seam stacked iron core, the iron core column has a multi-step circular Cross section, and the iron yoke and the iron core have the same cross section.

Feature

The Iron Core is Made of High-permeability Grain-oriented Cold-rolled Silicon Steel Sheet

The Firing Group Adopts Corrugated Oil Passage, Non-immersed Paint Process, and Tightening Banding

The Transformer Oil Tank is Composed of Corrugated Walls, the Surface is Sprayed with Dust, and the Paint Film is Firm

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Product Introduction

OVERVIEW

 

lron core:

The iron core is made of high-permeability grain-oriented cold-rolled silicon steel sheet. Fully oblique seam stacked iron core, the iron core column has a multi-step circular Cross section, and the iron yoke and the iron core have the same cross section.

 

Coil:

The firing group adopts corrugated oil passage, non-immersed paint process, and tightening banding; the firing group is all concentric coils; the high-voltage firing group has taps corresponding to the requirements of the tap voltage, which is led to the decomposition switch, and the switch is installed on the cover It is necessary to cut off the power before changing the tap voltage.

 

Oil tank:

The transformer oil tank is composed of corrugated walls, the surface is sprayed with dust, and the paint film is firm. The corrugated fins not only have the cooling function, but also have the breathing function. The elasticity of the corrugated fins can compensate for the change in transformer oil volume caused by the temperature rise and fall. Therefore, the fully sealed transformer has no oil storage cabinet, which reduces the overall temperature of the transformer. 

Transformer adopts vacuum oil injection process during packaging, which completely removes the moisture in the transformer, and the transformer oil is not in contact with air. Effectively prevent oxygen and moisture from intruding into the transformer, resulting in degradation of transformer insulation performance and aging of transformer oil, which improves the feasibility of transformer operation.

 

Insulation structure:

oil-immersed distribution transformer adopts A-level insulation structure; high voltage coil and low voltage coil are concentric; the space between coils is cardboard sleeve small oil clearance oil partition structure.

 

 

Model

 

 

Technical Parameters

 

Rated Capacity  Voltage Combination Vector Group No-load Loss Load Loss No-load Current Impedance Voltage Exterior Size Total Weight
(kVA) High voltage
(kV)
tap range Voltage Low
(kV)
  (W) 75℃ (W) (%) (%) (L*W*H) (kg)
200 10 ±4*2.5% 0.4 Ydn0
Dyn11
0.48 3.06 1.5 4 1650*870*1340 1040
250 0.56 3.6 1.4 1700*880*1490 1160
315 0.67 4.32 1.4 1750*900*1560 1360
400 0.8 5.22 1.3 1800*1060*1600 1550
500 0.96 6.21 1.2 1830*1080*1660 1820
630 1.2 7.65 1.1 4.5 1950*1120*1690 2170
800 1.4 9.36 1.0 2270*1240*1840 2590
1000 1.7 10.98 1.0 2310*1400*1900 3000
1250 1.95 13.05 0.9 2360*1460*1940 3630
1600 2.4 15.57 0.8 2430*1510*1990 4145

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