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Function Characteristics:
●Flame retardant, non-pollution, it can be installed directly in the load center.
●Maintenance-free, easy to be installed, low operating costs.
●The enclosure can be of Good moisture resistance, transformer can be put into operation without pre-drying under 100% humidity in the normal operation.
●Low loss, light weight and small volume, low noise, good dissipation of heat, it can be 150% rated load operation under forced air cooling conditions.
●Equipped with a complete temperature protection control system to provide reliable protection for the safe operation of transformers.
●High reliability. The results of checking for the products that has been put into operation show that the reliability index has reached the international advanced level.

Structural Characteristics:
Foil Coil: Adopting the entire section of copper foil, together with the F-class turn insulation, low voltage winding is wound by the special low-voltage foil winding machine. The foil coil resolves problems such as large short-circuit stress, ampere turn unbalance, poor heat dissipation, existing the winding spiral angle and unsteady manual welding quality due to low voltage and large current coil. At the same time, the end of winding is treated with cast resin, solidification to make shape, moisture-proof and anti-fouling, the lead for copper bar is welded by argon arc welding automatically.
Temperature Control Device: the transformer adopts BWDK series of signal thermometer. The temperature components are embedded in the upper half of the low-voltage coil, can detect and display the temperature of separate phase coil automatically and continuously, also have the functions of over-temperature alarm and trip.

Model and Meaning


Technical Parameter for 6kV, 10kV& 30kVA-2500kVA With Off Circuit Dry Type Transformer

（KVA）Rated capacity	Voltage Combination			Connection Group Symbol	No-load Loss（W）	Load Loss （W）				No-load Current (%)	Short-circuit Impedance（%）
	High Voltage (KV)	Tapping ranges of High Voltage	Low Voltage(KV)			130℃（B） （100℃）		155℃（F） （120℃）	180℃（H） （145℃）
30	6 6.3 6.6 10 10.5 11	±2.5%  ±5%	0.4	Dyn11 Yyn0	190	670		710	760	2.0	4.0
50					270	940		1000	1070	2.0
80					370		1290	1380	1480	1.5
100					400	1480		1570	1690	1.5
125					470	1740		1850	1980	1.3
160					540	2000		2130	2280	1.3
200		±2X2.5% ±5%			620	2370		2530	2710	1.1
250					720	2590		2760	2960	1.1
315					880	3270		3470	3730	1.0
400					980	3750		3990	4280	1.0
500					1150	4590		4880	5230	1.0
630					1340	5530		5880	6290	0.85
630					1300	5610		5960	6400	0.85	6.0
800					1520	6550		6960	7460	0.85
1000					1770	7650		8130	8760	0.85
1250					2090	9100		9690	10300	0.85
1600					2450	11000		11700	12500	0.85
2000					3050	13600		14400	15500	0.70
2500					3600	16100		17100	18400	0.70
1600					2450	1220		12900	13900	0.85	8.0
2000					3050	15000		15900	17100	0.70
2500					3600	17700		18800	20200	0.70

The load losses listed in the table are the values of the reference temperature for different insulation systems in parentheses; The load losses under other insulation system temperatures that are not included in the table should be according to their respective reference temperatures, the corresponding calculation is based on the"- 155 ℃ (F)" insulation system temperature data.
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. 

Technical Parameter for 20kV & 50kVA-2500kVA With Off Circuit Dry Type Transformer

（KVA）Rated capacity	Voltage Combination			Connection Group Symbol	No-load Loss（W）	Load Loss （W）				No-load Current (%)	Short-circuit Impedance（%）
	High Voltage (KV)	Tapping ranges of High Voltage	Low Voltage(KV)			130℃（B） （100℃）		155℃（F） （120℃）	180℃（H） （145℃）
50	20 22  24	±2.5% ±5%	0.4	Dyn11 Yyn0	340	1160		1230	1310	2.0	5.0
100					540	1870		1990	2130	1.8
160					670	2350		2470	3460	1.8
200		±2X2.5%  ±5%			730	2770		2940	3140	1.8
250					840	3220		3420	3660	1.8
315					970	3850		4080	4360	1.8
400					1150	4650		4840	5180	1.1
500					1350	5460		5790	6190	1.1
630					1530	6450		6840	7320	1.0
800					1750	7790		8260	8840	1.0
1000					2070	9220		9780	10400	0.85
1250					2380	10800		11500	12300	0.85
1600					2790	13000		13800	14800	0.85
2000					3240	15400		16300	17500	0.70	8.0
2500					3870	18200		19300	20700	0.70
2000					3240	16800		17800	19100	0.70
2500					3870	20000		21200	22700	0.70

 Technical Parameter for 35kV & 50kVA-2500kVA With Off Circuit Dry Type Transformer

（KVA）Rated capacity	Voltage Combination			Connection Group Symbol	No-load Loss（W）			Load Loss （W）			No-load Current (%)	Short-circuit Impedance（%）
	High Voltage (KV)	Tapping ranges of High Voltage	Low Voltage(KV)					130℃（B） （100℃）	155℃（F） （120℃）	180℃（H） （145℃）
50	35 36 37 38.5	±2.5% ±5%	0.4	Dyn11 Yyn0	450	1340			1420	1520	2.3	6.0
100					630	1970			2090	2230	2.0
160					0.790	2650			2810	3000	1.5
200		±2X2.5% ±5%			0.880	3130			3320	3550	1.5
250					0.990	3580			3800	4060	1.3
315					1170	4250			4510	4820	1.3
400					1370	5100			5410	5790	1.1
500					1520	6270			6650	7110	1.1
630					1860	7250			7690	8230	1.0
800					2160	8600			9120	9760	1.0
1000					2430	9860			10400	11100	0.75
1250					2830	12000			12700	13600	0.75
1600					3240	14600			15400	16500	0.75
2000					3820	17200			18200	19500	0.75
2500					4450	20600			21800	23300	0.75