This transformer feed a diode rectifier, 6 phase, 12 pulses, which feeds the load with DC voltage 750v, the rectifier is not equipped with smoothing or interphase coil on 750v side, we are responsible of the compatibility of the transformer-rectifier system. The K factor of the transformer is K13, which means the transformer is operating in a heavy harmonic environmental, which is considered by us during design. The transformer is working 20/24 hour, 365 days at -35 to +40 ℃ and 100% humidity. The transformer is able to work at 150% of the rated power with peak of 300% for 20seconds due to peak of voltage every 3 minute without exceeding the temperature of 100℃,the temperature rise is 80℃ max at rated power, the insulation of the copper winding is adopt NOMEX with class H(220℃)

Transnet's traction substations consist of single and double units and in exceptional cases a three unit rectifier configurations.
Each rectifier unit comprises of a set of high voltage AC disconnects, primary circuit breaker, two current transformers and a traction transformer connected for twelve-pulse rectification with its control and protection circuitry.
The rated power of the transformer is 6000 kVA with ONAN cooling, the primary voltage is 22 kV with ±2*2.5% tapping range(NLTC), the secondary voltage is 2 of 1.22 kV, also a tertiary winding is designed to supply a auxiliary 150 KVA 1.22 KV power, they formed a vector group of Y/d11y0y0n.

The rated power of the transformer is 2 x (3635 – 2562/2562) kVA with OFAF cooling, the primary voltage is 22 kV with 462,433,390,346,303,260V tapping range(NLTC), the secondary voltage is 2 of 462 V, they formed a vector group of Yy0y6 & Dy5y11.

The rated power of the transformer is 750 kVA with ONAN cooling. The primary voltage is 13.8kV with ±2*2.5% tapping range (NLTC), the secondary voltage is 0.4kV, they formed a vector group of Dyn11.

The rated power of the transformer is 225 kVA, with the primary voltage 24.94GRDY/14.4 kV to secondary voltage 0.48GrdY/0.277 kV. The connection group is YNyn0, and there are 5 taps ABCDE to adjust the voltage at the primary side, where can output 5 different voltages as wanted.
The 225 kVA Pad mounted transformer is welled design with 98.94% efficiency and our advanced manufacturing process, which may satisfy various voltage requirements.

The rated power of the transformer is 15000 KVA. It is a vacuum pressure impregnated winding dry type transformer 24.94kv to 4.16kv, the high voltage of this dry type transformer is 24.94kv, the low voltage is 4.16kv. Variable frequency dephasing dry type transformer have been painted with 3-proofings lacquer and with curing process of high temperature which all can strengthen the anti-short circuit ability. Our 15 MVA dry type transformer was designed with advanced technology and adopts high quality material and components which result in reliable quality and long operation time.

The rated power of the dry type transformer is 2000 kVA with AN/AF cooling, the primary voltage is 11 kV with ±2*2.5% tapping range (NLTC), the secondary voltage is 0.4kV with delta star connection.
Cast resin technology provides excellent insulation and environmental protection, this together with the foil winding technology inside the resin offers the ultimate dry type transformer in terms of dielectric performance and short circuit withstand ability and ensures long term reliability for both distribution and special applications. cast resin transformers can be supplied with either aluminum or copper windings together with possibility of class F or class H insulation system, they can be designed to in-door or out-door installation with different enclosures.

The 5000kVA transformers will each be supplying 3x compressors with 790kW motors which are started Direct-on-Line (D.O.L). The intention is for the 5000kVA transformer to accommodate 2x 790kW motors starting simultaneously D.O.L with the third starting some time after.The HV and LV cables are bottom entry, an 800 * 400mm opening is provided on the bottom of the enclosure for HV cable incoming, an 400*400mm opening is provided on the bottom of enclosure for LV cable incoming. Which is sealed with temporary low-carbon steel plate.The shock proof rubber pad is installed at the bottom of the transformer, which has excellent isolation effect and can reduce the impact of live load and seismic force on the transformer. There are three surge arresters installed on the enclosure and connected to the each phase of HV terminal.The transformer is equipped with no load tap changer, the tapping range is ±2*2.5% at primary side.The cooling is AN,but client is request to add additional fans，which means can add the capacity of transformer. The connect group is Dyn11.

the rated power of the transformer is 10000 KVA. It is a cast coil dry type transformer 24.94kv to 4.16kv, the high voltage of this dry type transformer is 24.94kv, the low voltage is 4.16kv. This high voltage dry type transformer is equipped with a no load tap changer, the tapping range is ±2*2.5% at primary side, the cooling is ANAF, our 10 MVA dry type transformer was designed with advanced technology and adopts high quality material and components which result in reliable quality and long operation time.
We ensure that each one of our delivered units has undergone rigorous full acceptance testing. We provide one-package service from consulting, quoting, manufacturing, installation, commissioning, training to after sale services, our products are now operating in more than 50 counties in the world. We aim to be your most reliable supplier as well as your best partner in business!

The rated power of the dry type transformer is 500 KVA, the primary voltage is 6.6 KV and secondary voltage is 0.55KV with delta star connection. Cast resin technology provides excellent insulation and environmental protection, this together with the foil winding technology inside the resin offers the ultimate dry type transformer in terms of dielectric performance and short circuit withstand ability and ensures long term reliability for both distribution and special applications. cast resin transformers can be supplied with either aluminum or copper windings together with possibility of class F or class H insulation system, they can be designed to in-door or out-door installation with different enclosures.