Three Phase Power Transformer

This standard is applicable to three-phase double winding oil immersed power transformer with voltage class 35kV, rated capacity 50 ~ 31500kVA and frequency 50Hz.  
This standard is not suitable for dry and damp heat belt type power transformer and power plant, transformer substation own three phase power transformer.

S13 series of Three-phase oil Immersed Transformers,three phase transformer,three phase variable transformer,3 phase transformer,three phase power transformer,3 phase step down transformer
Oil Immersed Transformer
Model and Meaning
Model No. Rated CapacityKVA Rated Voltage KV Connection Group Symbol Loss W No-load Current (%) Impedance Voltage%
High Voltage KV Tapping Range of High Voltage Low VoltageKV No-load On Load
S13-M*R-30/10 30 10 ±5%±2x2.5% 0.4 Dyn11Yyn0 80 630/600 0.30 4.0
S13-M*R-50/10 50 100 910/870 0.24
S13-M*R-80/10 80 130 1310/1250 0.22
S13-M*R-100/10 100 150 1580/1500 0.21
S13-M*R-160/10 160 200 2310/2200 0.19
S13-M*R-200/10 200 240 2730/2600 0.18
S13-M*R-250/10 250 290 3200/3050 0.17
S13-M*R-315/10 315 340 3830/3650 0.16
S13-M*R-400/10 400 410 4520/4300 0.16
S13-M*R-500/10 500 480 5410/5100 0.16
S13-M*R-630/10 630 570 6200 0.15 4.5
S13-M*R-800/10 800 700 7500 0.15
S13-M*R-1000/10 1000 830 10300 0.14
S13-M*R-1250/10 1250 970 12000 0.13
S13-M*R-1600/10 1600 1170 14500 0.13
Notes: The Dimension and weight will be changed according to the requirements. These two data in the table will be subject to the factory documents.
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This standard is applicable to three-phase double winding oil immersed power transformers with rated voltage of 6 and 10kV, rated capacity of 30 ~ 6300kVA and frequency of 50Hz. This standard is not suitable for dry and damp heat belt type power transformer and power plant, transformer substation own three phase power transformer.

Our capability:
-we can design, manufacture, testing various kinds of transformers up to 5000kva according to iec standards, ansi standards, bs standards, en61558 standards and technical specifications from client.
-we have exported our transformers to usa over $700, 000 every year.

Our major products:
-oil immersed distribution transformers up to 5000kva.
-dry type transformers up to 5000kva.
-isolation transformers: three phase from 100va to 5000kva and single phase from 25va to 500kva.
-auto transformers: three phase from 100va to 5000kva and single phase from 25va to 500kva.
-medical transformers up to 1600kva.
-toroidal transformers up to 100kva.
-auto voltage regulator(voltage stabilizer) up to 5000kva.
-eps, ups transformers.
-rectifier transformers.
-control transformers.
-reactor is included:
Parallel, serial reactor. Filter reactor. Starting reactor. Dc reactor. High frequency resonant inductance.

Your search for three-phase transformer manufacturers ends at trutech products. Our offered transformer is the perfect example of technology and modernity. To search out more details about the product and price range of each unit, be in touch with us.

Rated power: 320kVA
Winding connection: Dyn11
Frequency: 50Hz
Voltage: 22/0,4kV
No-load losses (Po): 390 W
Short-circuit losses(Pk): 3330 W
Maximum no-load current(I0): 2%
Short circuit voltage(Uk ): 6%
Standard: : TCVN 6306 (IEC 60076); Decision 62 / Q EVN
Quality standard: ISO 9001:2015; ISO 14001:2015

Three-phase transformers are used to convert the available 3-phase mains voltage into any load voltage.
To cater for the wide range of application areas involved,these transformers are essentially available in
the same kinds of designs as the single-phase transformers, e.g.
Three-phase dry-type transformer:
separate winding version
Three-phase series transformer:
autotransformer winding version
Three-phase safety, isolating, mains or
insulating transformer: separate winding version
In terms of how the 3 coils are connected, there are various options available and each of these provides
the transformers with specific properties. The vector group code is composed of the following elements:
The upper-case letter indicates the higher-voltage winding
(the highest voltage in terms of operation).
The lower-case letter indicates the lower-voltage winding.
The brought-out neutral is indicated by means of N or n
(depending on voltage level).
â?¢ The distinctive number indicates the phase angle of the lower voltage
in relation to the higher voltage (distinctive number multiplied by 30).
The following winding connection options are available
Delta: D, d
Wye (or star): Y, y
Zigzag: Z, z
Example: Dyn5
Higher-voltage winding is delta-connected.
Lower-voltage winding is star-connected with a brought-out neutral.
The lower voltage lags behind the higher voltage by 150�° (5 x 30�°).
Unless specifically requested otherwise, the transformers are configured with a double-star connection
and a brought-out neutral (vector group Yyn0); for autotransformers the vector group is YNa0.
Our three-phase transformer range includes all our standardised types for the 25 30.0 kVA performance range and a frequency of 50/60 Hz