S □ -M-RL Oil-immersed three-dimensional wound core distribution transformer series

Short Description:

Product Standards

GB1094.1-2-2013 GB/T 6451-2015

Rated high voltage: 10 (10.5, 11, 6, 6.3, 6.6) kV

Rated low voltage: 0.4kV

Tap range: non-excitation voltage regulation (±5%, ±2×2.5%)

Connection group: Dyn11 or Yyno

Insulation level: LI75AC35/AC5


Product Detail

Product Tags

1.Features

The three-phase oil-immersed distribution transformer produced by our company adopts a new insulation structure to improve the short-circuit resistance; the iron core is made of high-quality cold-rolled silicon steel sheets; high-voltage windings are made of high-quality oxygen-free copper wire as the material , and adopts multi-layer cylindrical structure; all sturdy parts adopt special anti-loosening treatment.
The product has the characteristics of high efficiency and low loss, can save a lot of power consumption and operating costs, and has significant social benefits. It is a popularized new technology product.

2.Reliable Structure

Based on the traditional structure and mature technology, our company has made many improvements, such as:
1) Spiral coil with longitudinal oil passage, better internal heat dissipation;
2) Improved the effective support of the coil end surface, and the ability to resist short-circuit current is stronger;
3) The new hoisting structure and body positioning structure are adopted to ensure more reliable in long-distance transportation and operation;
4) We have many unique and reliable structures to serve you;
5) Selecting a transformer with a higher performance level will have a higher level of technical content.

3.Excellent Materials

1) Oxygen-free copper wire with lower resistivity is selected, and after a series of additional surface treatments, it is smoother and free of burrs and sharp corners, making the load loss of the transformer lower and the electrical performance more reliable.
2) Select high-quality silicon steel sheets. With the improvement of performance level, use silicon steel sheets with lower unit loss to make the transformer no-load loss lower.
3) Select high-quality laminated wood insulation parts, never crack, even under the action of short-circuit current, the wire will not move.
4) Transformer oil after deep filtration is selected. The lower water, gas and impurity levels make the transformer work more reliable.
5) Select high-quality rubber sealing materials to effectively prevent aging and prevent leakage.
6) All raw materials have passed the quality inspection, and all raw material manufacturers have undergone strict review in accordance with the national standard ISO9000.

Model meaning

Model S-M-RL-/
 
S M R L
Three-phase Design Number Fully sealed Rated capacity (kVA) High-voltage side electric level (kV) Coiled core Three-dimensional

Performance parameter

Rated Capacity

(kVA)

Voltage combination and tapping range

Link group label

Load loss(W)

Load loss

(W)

No-load current

(%)

Short circuit impedance

(%)

high pressure

(kV)

High voltage tapping range

(%)

Low pressure

(kV)

30

6

6.3

6.6

10

10 5

11

±5%

±2×2.5%

0.4

Dyn11

Yzn11

YynO

80

630/600

0.3

4.0

50

100

910/870

0.24

63

110

1090/1040

0.23

80

130

1310/1250

0.22

100

150

1580/1500

0.21

125

170

1890/1800

0.2

160

200

2310/2200

0.19

200

240

2730/2600

0.18

250

290

3200/3050

0.17

315

340

3830/3650

0.16

400

410

4520/4300

0.16

500

480

5410/5150

0.16

630

570

6200

0.15

800

700

7500

0.15

1000

830

10300

0.14

4.5

1250

Dyn11

YynO

970

12000

0.13

1600

1170

14500

0.12

2000

1550

18300

0.11

5.0

2500

1830

21200

0.11

Note: 1. The load loss above the diagonal line in the table applies to the Dyn11 connection group, and the load loss value below the diagonal line applies to the YynO connection group.
2. Other Ronghuang product performance parameters are determined by the user and the manufacturer through negotiation.


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