Amorphous Alloy Distribution Power Substation Transformer

 

The main feature of the amorphous alloy transformer that is different from the conventional transformer is that the core uses a new type of magnetically conductive material-amorphous alloy. Compared with the no-load loss of silicon steel sheet iron core transformer, it is reduced by about 75%, and the no-load current is reduced by about 80%.

 

 

(1) The no-load loss of the amorphous alloy transformer is reduced by more than 65% compared with the S11 transformer, the no-load current is reduced by about 80%, and the annual operating cost is reduced by an average of 22.7%.

(2) The transformer has no structural loss, and the iron core adopts a three-phase four-frame five-column structure. The zero-sequence magnetic flux flows in the two side columns, and the magnetic flux does not pass through the box, so no heating structure loss occurs.

(3) The transformer connection group adopts Dyn11 to reduce the influence of harmonics on the power grid and improve the quality of power supply.

(4) The low-voltage winding of the transformer adopts a copper foil coil, and the coil is a rounded rectangle.

(5) The structure of the transformer body adopts "upper support and lower support" to reduce the stress on the iron core as much as possible and ensure the electromagnetic performance of the amorphous alloy iron core.

(6) The suit of the small-capacity transformer adopts the vertical suit technology, and the suit of the large-capacity transformer adopts the horizontal suit technology, and the noise and no-load loss of the transformer are strictly controlled.

(7) The transformer box adopts a fully enclosed structure. The box is filled with silicone oil with good anti-oxidation, high temperature resistance and thermal cycle performance, and the transformer is basically in a maintenance-free state.

(8) The transformer adopts vacuum oil injection to completely eliminate the air bubbles in the coil and ensure the stability of the insulation performance.

(9) A protective cover is installed above the high and low voltage bushings of the transformer, no conductors are exposed, and cable wiring is used to achieve full insulation protection.

 

 

Altitude: h< 1000m

Maximum daily average relative humidity: 95% (20°C)

Ambient temperature: -25°C < T <+40°C

Earthquake resistance: ground horizontal acceleration 0.2g, ground vertical acceleration: 0.2g

Temperature: Average maximum temperature: T<+35°C

The waveform of the supply voltage should approximate a sine wave

Monthly minimum average use temperature: T< -25°C (outdoor)

The supply voltage of the three-phase transformer should be approximately symmetrical

Daily maximum temperature difference: 25°C.

Installation site: no severe vibration and shock, no autumn disaster, no serious pollution, no chemical corrosive medium and dust, no explosive danger.

Humidity: Maximum Average Relative Humidity: 90% ( 20°C )

 

 

 Transformer Test before installation

1. Measurement of winding-to-ground insulation resistance;

2. Withstand voltage test;

3. Voltage ratio measurement and connection group label verification;

4. Measurement of no-load current and no-load loss;

5. Short circuit impedance and load loss measurement;

6. Winding resistance measurement;

7. Transformer oil test.

 

 

Model and Meaning

Technical Parameter of S(B)H15-M Series Hermetical Amorphous Alloy Power Transformer

Rated capacity(kVA)	Voltage and tapping range			Connection Group Symbol	No-load Loss(W)	Load Loss (W)75℃	No-load current (%)	Short-circuit impedance(%)
	High Voltage (KV)	Tapping ranges of High Voltage	Low Voltage (KV)
30	6 6.3 10 10.5 11	±5% ±2×2.5%	0.4	Dyn11 ( or ) Yyn0	130	630/600	2.3	4
50					170	910/870	2
63					200	1090/1040	1.9
80					250	1310/1250	1.9
100					290	1580/1500	1.8
125					340	1890/1800	1.7
160					400	2310/2200	1.6
200					480	2730/2600	1.5
250					560	3200/3050	1.4
315					670	3830/3560	1.4
400					800	4520/4300	1.3
500					960	5410/5150	1.2
630					1200	6200	1.1	4.5
800					1400	7500	1
1000					1700	10300	1
1250					1950	12000	0.9
1600					2400	14500	0.8
2000					750	17400	0.2	5
2500					900	20200	0.2

 

Ordering Instructions

(1) Transformer model:

(2) Rated capacity: ______KVA

(3) Number of phases: three-phase, single-phase

(4) Frequency: 50HZ, 60HZ

(5) Rated voltage (high voltage/low voltage):____________________

(6) Tap range: ±______x_____%

(7) Connection group label: Dyn11  Yyn0  Yy0(D11)  Others

(8) Impedance voltage UK: ____________%

(9) Cooling method:  AN     AF

(10) Other requirements:

 

 

 

 

 

 

 

 

 

 

Our factory covers an area of 33,300 square meters, with a total construction area of 6,100 square meters. There are currently 260 employees, including 18 technicians who have been engaged in the research and development of transformer products for many years, and 8 high-quality corporate managers. With the expansion of production scale and the increase of product varieties, it has now developed into a high-tech innovative enterprise that annual production capacity of more than 1000MVA, integrating the design, production and sales of open-type dry-type transformers, epoxy resin cast dry-type transformers, amorphous alloy transformers, and special transformers.

 

 

WHY HEBEI TIANWEI

1. Providing quality packaged power solutions at the shortest lead time in the industry to commercial and industrial clients.

2. Product manufacture and supply according to the highest industry quality standards – ISO 9001 and SANS.

3. We invest in keeping large quantities of standard transformers and MV switchgear in stock – we supply quickly and provide 24/7 emergency support to ensure minimal downtime.

4. Our dedicated departments, infrastructure and highly trained personnel allow fast, full on-site installation, service and supply capabilities.

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