On-Load Automatic Capacity and Voltage Regulating Transformer
1. Scope of application
The on-load automatic capacity and voltage regulating transformer is a new technology, intelligent and energy-saving distribution transformer. It has two capacity levels: large and small, which can automatically adjust and switch the capacity according to the load changes without power outage. When the load is light or close to no load, the transformer adjusts from large capacity to small capacity operation; when the system voltage changes and the output voltage of the transformer becomes unstable, the on-load voltage regulating switch can also automatically adjust the voltage to ensure the stability of the power voltage and the safety of users' electricity use.
This product is mainly composed of a transformer, an on-load voltage regulating switch and a controller. Its functions include data storage, remote signaling, remote control, remote adjustment, telemetry, intelligent networking, reactive power compensation control, and anti-theft, which cannot be achieved by traditional rolled iron core, amorphous transformers and other energy-saving products.
The product has the characteristics of intelligent control structure, strong practicability, and significant energy saving effect, which has far-reaching significance for ensuring the safe operation of the power distribution system and improving the quality of the power supply of the power grid.
On-load automatic capacity and voltage regulating transformer is suitable for urban residential areas, commercial areas, industrial areas, rural power grids and other placeswith strong seasonal power consumption, large day and night load fluctuations, concentrated power consumption, and low average annual load rates. It solves the problem of large transformer losses caused by relatively large seasonal load changes in the distribution network, and also overcomes the operation and maintenance problems caused by manual operation after the no-load voltage regulating transformer needs to be powered off.
2. Product standards
GB/T1094.1-5 GB/T1094.7 JB/T10088 GB/T6451
GB/T7595 JB/T3837 GB20052 IEC60076
3. Operation environment
1) Altitude: ≤1000 meters.
2) Ambient temperature: Maximum +40ºC, Minimum -40ºC.
3) Max outdoor wind speed: ≤45m/s.
4) Max Ground ramp degree: ≤3°.
5) Seismic level: ≤3m/s2 at horizontal direction and ≤1.5m/s2 at vertical direction.
6) Installation environment: No obvious and heavy pollution, no explosive and corrosive gas and dust, with good air ventilation and no severe vibration and shock.
7) If the application environment is different from the above standard conditions, please contact for customized designs.
4. Product advantages
1)Automatic voltage regulation: It has automatic voltage regulation functionsupports ±3*2.5% and ±4*2.5%; when the user or line load instability causes voltage fluctuations, the transformer can automatically adjust the voltage level to improve the quality of power supply, extend the life of equipment, and solve the problem of large load and voltage fluctuations in the distribution network.
2) Automatic capacity adjustment: Automatically adjust the capacity according to the load size, so that the transformer can automatically operate in the small capacity range during the low load period. Its no-load loss is greatly reduced when the load is light, and the no-load active power loss of the small capacity is less than 1/3 of that of the large capacitywith significant energy saving.
3) Vacuum arc extinguishing: Using vacuum tube switching, the switching process is non-stop and does not generate arcs.
4) Stable switching: Through IGBT control and adaptive control of the tap changer switching speed according to changes in temperature, the capacity adjustment and voltage regulation switching are locked with each other and do not interfere with each other, ensuring stable and reliable switching.
5) High level of intelligence: It supports multiple communication methods such as WIFI, GPRS and RS485, and expands the functions of transformer operating status monitoring, remote adjustment of gears and setting of fixed values, and fault pre-alarm.
6) Human-computer interaction: The controller is equipped with a TFT screen, and parameter confirmation, modification and operation can also be performed remotely and wirelessly through the mobile phone APP.
7) Significant energy saving effect: Automatically adjust capacity and voltage according to load changes, avoiding high loss problems of large-capacity transformers at light loads and improving reactive power compensation.
8) Enhance system flexibility: Quickly respond to changes in grid demand and improve the overall flexibility and reliability of the power system.
