Medium voltage dry type transformer, unexcited, China manufacturer

Overview of Medium Voltage Dry Type Transformers

Medium voltage dry type transformers are essential components in electrical distribution systems, particularly in industrial and commercial applications. These transformers operate without the need for any liquid coolant, relying instead on air for insulation and cooling. This design not only enhances safety but also reduces maintenance requirements, making them a preferred choice for many manufacturers.

Type	Rated capacity （KVA）	Voltage combination（KV）	No-load losses（W）	Load losses（W）	No-load current （%）	Short-circuit impedance （%）
SC12-30	30	6,6.3,6.6,10,11/0.4	150	710	2.0	4.0
SC12-50	50	6,6.3,6.6,10,11/0.4	215	1000	2.0	4.0
SC12-80	80	6,6.3,6.6,10,11/0.4	295	1380	1.5	4.0
SC12-100	100	6,6.3,6.6,10,11/0.4	320	1570	1.5	4.0
SC12-125	125	6,6.3,6.6,10,11/0.4	375	1850	1.3	4.0
SCB12-160	160	6,6.3,6.6,10,11/0.4	430	2130	1.3	4.0
SCB12-200	200	6,6.3,6.6,10,11/0.4	495	2530	1.1	4.0
SCB12-250	250	6,6.3,6.6,10,11/0.4	575	2760	1.1	4.0
SCB12-315	315	6,6.3,6.6,10,11/0.4	705	3470	1.0	4.0
SCB12-400	400	6,6.3,6.6,10,11/0.4	785	3990	1.0	4.0
SCB12-500	500	6,6.3,6.6,10,11/0.4	930	4880	1.0	4.0
SCB12-630	630	6,6.3,6.6,10,11/0.4	1070	5880	0.85	4.0
SCB12-630	630	6,6.3,6.6,10,11/0.4	1040	5960	0.85	6.0
SCB12-800	800	6,6.3,6.6,10,11/0.4	1210	6960	0.85	6.0
SCB12-1000	1000	6,6.3,6.6,10,11/0.4	1410	8130	0.85	6.0
SCB12-1250	1250	6,6.3,6.6,10,11/0.4	1670	9690	0.85	6.0
SCB12-1600	1600	6,6.3,6.6,10,11/0.4	1960	11700	0.85	6.0
SCB12-2000	2000	6,6.3,6.6,10,11/0.4	2440	14400	0.7	6.0
SCB12-2500	2500	6,6.3,6.6,10,11/0.4	2880	17100	0.7	6.0

Dry type transformers are designed to handle voltages typically ranging from 1 kV to 35 kV. They deliver reliable performance in various environments, including those with high humidity or dust levels. As a result, they are often implemented in locations such as factories, hospitals, and data centers where reliability is crucial.

Characteristics of Unexcited Dry Type Transformers

An unexcited transformer operates under conditions where no load or minimal load is connected. This characteristic allows for better energy efficiency and reduced losses during periods of low demand. Unlike traditional transformers that may experience losses even when idle, unexcited dry type transformers can maintain optimal performance while minimizing waste. The unexcited design also contributes to a longer lifespan and higher operational reliability. Since these transformers do not require excitation to function, they can withstand environmental stresses without compromising performance. This makes them an ideal choice for regions where power fluctuations are common.

Chinese Manufacturers Leading the Market

China has become a significant player in the global market for medium voltage dry type transformers. Several manufacturers in China specialize in producing high-quality transformers that meet international standards. These companies leverage advanced technology and skilled labor to ensure that their products are both efficient and durable. Chinese manufacturers often offer competitive pricing due to lower production costs, making them attractive options for businesses looking to invest in electrical infrastructure. Additionally, many of these manufacturers provide comprehensive customer support and after-sales services, which further enhances their appeal in the marketplace.