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1，Amorphous Alloy Transformers

Amorphous alloy transformer is a new type of transformer with amorphous metal as the core material. Amorphous alloy core has high saturation magnetic induction strength, low coercivity, ultra-low loss, low excitation current and good temperature stability. Compared

with silicon steel S9 series transformers, the no-load loss is reduced by 70-80%, and the no-load current is reduced by 50%.

The energy-saving effect is very obvious, and the amorphous alloy transformer is a green and energy-saving transformer.

Main functions and characters：

● The core adopts three-phase four-frame and five-column structure;

● The use of Dyn11 connection group is conducive to reducing the harmonic impact of the power grid and improving the quality of power supply;

● Transformer tank adopts sealed structure, reliable operation, maintenance-free:

● No-load loss is only about 20% of the S9 transformer, and no-load current is about 50% of the S9 transformer.

S(B)H15-30-2500/10 series three-phase amorphous alloy transformer

2，Capacity Regulating Transformers

3，Rectifier Transformers

The rectifier transformer has absorbed the successful experience of the same industry at home and abroad in technology, and has developed various types of products to meet different customer needs. The products are single phase, three phase, three phase five column, six phase and twelve phase. The technical performance of the products is at the domestic advanced level. According to the special requirements of customers to design and manufacture a variety of structural forms of products.

● Main production process and characteristics:

1. High performance silicon steel sheet and high quality oxygen free copper wire are used in the material, and advanced integrated coil phase separation technology is adopted in the production technology.

2. The iron core adopts the five-step stacking method, the cold-press welding technology of the lead wire, and the precision machining

of the sealing surface of the oil tank.

4，F(xiàn)urnace Transformers

The electric furnace transformer produced by the company can effectively improve the smelting efficiency, reduce the comprehensive power consumption and strengthen the operation reliability, and the performance indicators have reached the domestic advanced level.

● Main production process and characteristics:

1. The iron core is made of high-quality cold-rolled oriented silicon steel sheet, the iron core is stacked with full oblique joint multi-stage step process, the iron core clamping device is made of pull plate pressing nail structure, and the body assembly is made of six

directions and ten-point positioning measures.

2, the coil is made of high purity semi-hard oxygen-free copper paper wrapped flat wire wound, turn insulation is made of high quality insulating cardboard. The inner coil is wound directly on the insulated cylinder, and all the coils are provided with internal and external stays. The final assembly of the coils is a synchronous jacking system.

3, the fuel tank adopts folding plate flat-top fuel tank. The cooling system of medium and small capacity electric furnace transformer adopts chip radiator, and the cooling system of medium and large capacity electric furnace transformer adopts split combined forced oil circulation cooler.

5，S11-M.D Series Buried Distribution Transformers

Underground distribution transformer is a kind of transformer that can be installed in the ground pit and can meet the needs of

high-voltage power supply of single-ring network, which is suitable for long distance and small-load high-voltage output system such as roads, Bridges, airports and tunnels.

● Product standard

GB16927-1997 High voltage test technology

Gb10994.1-1996 Power transformer

GB7328-1987 Determination of sound levels of transformers and reactors

GB/T6451-2008 three-phase oil-immersed power transformer technical parameters and requirements

GB4208-2008 Shell protection class

JB/T501-2006 Power converter test guide

JB/T10544-2006 Underground transformer

Main features and technical parameters: Main functions and characters

● Normal conditions of use

· Outdoor pit and tunnel wall pit

· The altitude does not exceed 1000M

· Maximum ambient temperature +40℃

· Minimum temperature -25℃

· Pit operation conditions: meet the water flooding exceeds 1 meter of the transformer top cover plane, and the operation can reach 120 days

Note: According to user requirements, the ring type geographical transformer can add four-position load switch, and the terminal type buried transformer can add two-position load switch.

● Performance characteristics

a, the high-voltage inlet line adopts two (one in one out) three-phase integrated plug-in high-voltage cable connectors;

b, low-voltage outlet line using three-phase four-wire integrated plug-in type low-voltage electrical connector;

c, high voltage side mounted limited current fuse protection;

d, the box is made of A3 steel and special protection treatment;

e, the protection level is IP68, and it can be fully invaded in the water for a period of time, up to 120 days;

f, the rise limit value when running in the pit meets the requirements of GB1094.4-1996.

6，Prefabricated Substation

Products comply with GB17467-2010 "high voltage/low voltage preassembled substation" and IEC1330 standards. ZB type box substation is commonly known as European box transformer, as a new type of power supply and distribution device, it has many advantages over the traditional substation. Because of its small size, small footprint, compact structure, easy to move, thus greatly shortening the cycle and footprint of the infrastructure, but also reduce the cost of infrastructure. At the same time, the box-type substation is simple to install on site, fast power supply, and simple equipment maintenance. There is no need for special duty,

especially it can go deep into the load center, which is very important to improve the quality of power supply, reduce power loss,

enhance the reliability of power supply and change the distribution network.

ZB substation is composed of four parts: high voltage switchgear, low voltage distribution panel, distribution transformer and shell. High voltage has air, vacuum, SF6 load switch; The transformer is dry transformer or oil immersed transformer. The box adopts a good heat insulation ventilation structure, beautiful appearance, good heat insulation performance, and the box is equipped with upper and lower ventilation duct, outdoor solar radiation on the transformer room and high and low pressure room caused by the temperature rise can be reduced to a minimum. Temperature controlled forced ventilation device and automatic temperature control device can be installed in

the box. Each individual unit is equipped with complete control, protection, live display and lighting systems.

7，PAD-MOUNTED TRANSFORMER

The combined type transformer produced by our factory (commonly known as the American box transformer) is a transformer that combines the transformer body, switchgear, fuse, tap changer and related auxiliary equipment. The high-voltage connection scheme has terminal type and ring network type, which can adapt to the requirements of various power supply systems. Moreover, it has the advantages of compact structure, small size, less investment, fast installation and so on. It can be used indoors and outdoors. It is

widely used in residential areas, airports, high-rise buildings, commercial centers, factories and mines, enterprises, hospitals, schools and

other occasions. It can penetrate the load center with maximum annual ease and improve the quality of power supply. And can meet the

user's power metering, reactive power compensation, low voltage shunt and other configuration requirements, easy to use flexible.

● Fully insulated structure and interlocking device to ensure personal safety;

● Fully sealed structure, eliminate oil deterioration, extend service life:

● The load switch has the characteristics of three-phase continuous movement, which effectively reduces the ferromagnetic resonance;

● Double fuse protection to ensure simple, convenient, economical, reliable and safe operation of the system;

● There are silicon steel sheet iron core, amorphous alloy iron core, coil iron core, low loss, low noise, box does not heat;

● High voltage line adopts elbow type cable plug, can operate 200A load current, can be used as load switch operation in emergency, and has the characteristics of isolation switch;

● Small size, only about 1/3 of the European box with the same capacity.

Composite transformer

Composite transformer insulation level

High voltage electrical components insulation level

Low voltage electrical component insulation level

8，H Class Oil-immersed Day T

● Long thermal life, strong overload operation ability, long-term overload operation under 120% rated capacity, and long-term full load operation without forced air cooling;

● High safety and flame retardant performance, no smoke generated under long-term combustion at high temperature of 800℃;

● Strong thermal shock resistance (can immediately add full load at -50℃);

● 100% waterproof sealing, excellent hydrophobicity, moisture resistance;

● Insulating material and copper wire can be easily separated and recycled after the life period, without polluting the environment.

Impregnated H-class insulated 10kV non-exciting voltage regulating distribution transformer

Dip type H-insulated 35kv unexcited voltage regulating distribution transformer

9，F(xiàn) Class Cast Resin Day Type Transformers

● Good cooling conditions, coil does not absorb moisture, does not pollute the environment, can be installed in the load center;

● Low noise and low loss, significant energy saving effect, economic operation, maintenance-free;

● High mechanical strength, high insulation strength, strong short-circuit resistance;

● Excellent flame retardant, explosion-proof, outstanding disaster prevention performance;

● Low loss, small size, light weight, easy installation.

Epoxy resin cast type f insulated 10kV non-exciting voltage regulation distribution transformer

Epoxy resin cast type f insulated 35kV non-exciting voltage regulation distribution transformer

S13-M Series Three-phase Double-winding Distribution Transformers with off-circuit Tap Changer