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2 Introduction to XATH Xi'an Tianhong Electric Co., Ltd. (XATH) is a solely state-owned enterprise, set up by China Shipbuilding Industry Corporation (CSIC). It is one of the largest manufacturers of power transmission and distribution equipments in China. With advanced technology and vast experiences in manufacturing of dry type and oil-immersed transformers, XATH is one of the China s leading in the design, production and selling of cast resin dry type transformers (voltage: 6kV-35kV, capacity: 30kVA-20000kVA), oilimmersed transformers (voltage: 6kV-150kV, capacity: 30kVA-50000kVA), explosion-proof transformers, prefabricated substations, high and low voltage power distribution cabinets. Other types of transformers for special use, extinction coils, grounding transformers and reactors are also produced accordingly to clients special requirements. XATH Main Office XATH Plant XATH production and facilities are certified to ISO9001:2000, ISO14001:2004, GB/T , GB/T , GB/T , GB7251, IEC , (Full Routine, Type & Special Tests with KEMA), GB1094, JB/T10088 and CCC etc. Today, XATH products are sold in more than 30 provinces and exported to all over the world. XATH product are served in many international engineering projects and received satisfied feedback from the users on the quality, reliability and cost effectiveness. Production Line Finished Goods 1

3 XATH Cast Resin Transformer Going Green Termination Bars Assembly Section Testing Section XATH cast resin transformers have the highest standard of quality and reliability by using precision equipments and advanced state-ofthe-art technology. XATH Cast resin transformers are safe, nonflammable, fire resistance, pollution-free (no coolants required) and moisture-proof. They are unnecessary to be maintained. Installation is simple even can be fixed close to load centers. XATH Cast resin transformers have low energy running cost, low partial discharge, low noise level, high short time overload capacity, powerful heat-sinking capacity and when equipped with forced air fan, the temporary power may be increased up to 150% of the rated capacity. What is more, XATH Cast Resin Transformers HV and LV winding are both vacuum casted which guarantee optimum performance. In short XATH Cast Resin Transformers are safe and environmental friendly. Going green in line with the needs for the global sustainable development 2

4 The Core XATH transformers cores are constructed using high quality cold-rolled silicon steel sheet with advance cutting, lamination and assembly process. The sheets are cut in high precision and stacked by fine grades stepped construction and form 45 full oblique joint. This high precision step lap method reduces no-load losses and the idling current, ensuring great reduction of transformer noise level. Steel Coils The core will be than heat treated and surface treated with resin to ensure high humidity resistance and corrosion protection. Sheet Cutting Line Completed Core Core Assembly 3

5 resin casting by xath Construction of Cast resin composite material, namely Glass fiber reinforcement of windings is the master piece of the XATH Cast resin transformer. The composite material is perfectly blended to has high tensile strength and a coefficient of expansion close to that of copper. The material has good corrosion resistance, fire retarded and good resistance to temperature shocks. The cycle of polymerization is precisely controlled in vacuum chamber to guarantee no air intrusion. All XATH transformers LV and HV windings are both vacuum casted, which means guarantee free of voids. Cooling ducts are created to give efficient heat dissipation which guarantee high service life of transformer. low voltage windings Winding Process XATH transformers low voltage windings are constructed using insulated copper foil, laminated with DMD insulation papers. The connection between the copper foil and the terminal bars are made through precision Argon shield arc welding. The completed winding is impregnated at vacuum system at high temperature and form a smooth solid body of fiber glass reinforced epoxy. High voltage windings XATH transformers high voltage windings are constructed using enameled copper wire in double layer winding. The windings are wound with fiberglass on both sides on precision winding machine. Vacuum Chamber The completed winding is impregnated at vacuum system at high temperature and form a smooth solid body of fiber glass reinforced epoxy. XATH high voltage coils therefore guarantees resistance against sudden workload and ambient temperature changes. Completed LV Coils Completed HV Coils Completed HV Coils 4

6 enclosure (optional) The transformers can be protected with enclosure, either indoor or outdoor according to protection grade. The commonly used IP20 enclosure provides protection against the entrance of foreign objects with diameter greater than 12mm and only fit for indoor. Enclosure is made of either epoxy painted mild steel or aluminium alloy plates. Forced air ventilation system (optional) When temporary power increases are expected then forced air ventilation system is recommended. The ventilation kit is provided with an electrical panel to control the fan using temperature device. With this optional fixture, the power may be increased up to 150% of the rated capacity. Internal View (Alloy plates) Forced Air Fan In Enclosure Forced Air Fan temperature indication and control system The temperature automatic control system provide guarantee for long term, safe and reliable running of transformer. External View (Alloy plates) Temperature Control The system provide temperature presetting, recording, warning, tripping signal, starting and stopping the ventilation fans automatically. 5

7 quality comes first at xath XATH invest heavily in quality assurance program. Tests and routine inspections are carried out systematically and at random at all stages of production to ensure XATH transformers meet all standards and specifications even before the final assembly. The manufacture of XATH Cast resin transformer is certified in accordance with ISO9001 and ISO XATH cast resin transformers are designed and produced in accordance with IEC standard. Testing In Progress Tx Loaded To Testing Section Testing Console Testing Equipments Testing Equipments 6

8 Quality and safety management IEC Routine, Type & Special Test With KEMA Quality Management System Certificate ISO9001 Environmental Management System Certificate ISO14001 Occupational Health And Safety Management System Certificate 7

9 Structure of product (Optional) 8

10 Technical data/specifications Sc(b)9/10/11 Series 11kv class cast resin Dry Type Power transformers Dimensions Specifications Rated Voltage: 11kV Vector Group: Dyn11, YynO Low Voltage: 0.433kV Insulation Level: L175AC35/LIOAC5 Rated Power kva Type P 0 P k 75 P k 120 U k L PA Weight Length Width Height W W W % db(a) kg mm mm mm SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) All given sound levels are max. values. P o: No-Load Loss P k 75 C: Load Loss at 75 C P k 120 C: Load Loss at 120 C U k: Impedance L PA: A-weight Sound Pressure Level in db NOTE: Technical data subject to change without prior notice. SC(B)9 Normal Loss SC(B) 10 Low Loss SC(B) 11 Super Low Loss 9

11 Technical data/specifications Sc(b)10 series 33kv class cast resin Dry Type Power transformers Dimensions Specifications Rated Voltage:33 kv Vector Group:Dyn11, YynO Low Voltage:0.433 kv Insulation Level:L170AC170/LIOAC5 Rated Power kva Type P 0 P k 75 P k 120 U k L PA Weight Length Width Height W W W % db(a) kg mm mm mm 800 SC(B) SC(B) SC(B) SC(B) SC(B) SC(B) All given sound levels are max. values. P o: No-Load Loss P k 75 C: Load Loss at 75 C P k 120 C: Load Loss at 120 C U k: Impedance L PA: A-weight Sound Pressure Level in db NOTE: Technical data subject to change without prior notice. Rated Power of 3000kVA, 3500kVA & 4000kVA are available upon request. SC(B) 10 Low Loss 10

12 Green Asia Alliance Sdn. Bhd. ( H) 42, Jalan PJS 7/19, Bandar Sunway, Petaling Jaya, Selangor Darul Ehsan, Malaysia. Tel: / Fax: Website: greenasia.com.my