Automatic Voltage Regulator 2000va Stabilizers

We focus on recommending Steam Turbine Driven Solution(pump,fan), Parts and Auxiliary Equipment, Small Condensing Steam Turbine with company characteristics, and strive to enhance the competitiveness and influence of products. We have always been adhering to the corporate philosophy of 'carving out fine products, mutual benefit and development' and the service tenet of 'customer needs as the first choice, customer satisfaction as the first standard', and our products and services have won a good reputation among customers worldwide. We combine our own characteristics, give full play to the subjective initiative of dealers, and adopt flexible sales strategies according to the characteristics of local markets. The company always insists on the core values of "thinking determines the way out, quality makes the future, innovation promotes development, and strength creates the brand".

Product Overview

1. Local characteristics and performance analysis

● Stator:

The stator is composed of a base, a stator core and a stator winding.

The frame is welded by steel plates, the structure is light and strong, and the frame is divided into many air inlet and outlet areas along the axial direction;

● Stator coil:

It is made of multiple strands of polyester fiberglass-covered copper wire, and adopts a semi-group blue structure (some adopts transposition structure); the insulation grade of the coil is F grade, and the mica tape is continuously wrapped and molded. The end of the coil is made of weftless tape or The polyester glass rope is tied tightly with the bracket and the binding ring, so that the unit has a high tolerance to sudden short circuits.

● Stator core:

The stator core is made of cold-rolled non-oriented, high-permeability, low-loss, high-quality silicon steel sheets that are punched and laminated. Both sides of the silicon steel sheets are coated with a strong insulating paint film to prevent short circuits between the stator core sheets and reduce eddy current loss.

● Generator rotor:

The rotor is composed of a rotating shaft, a coil, a center ring, a guard ring, a fan ring, etc. The rotor coil is wound by cold-drawn flat copper wire and subjected to oxygen-free annealing. The rotor coils of 50MW and above steam turbine generators are tailor-welded with silver-containing cold drawn copper wires, and are insulated with class F.

The guard ring located at the end of the rotor coil is made of non-magnetic steel. Both ends of the rotor are equipped with centrifugal fans or axial fans with blades forged from high-strength aluminum alloy.

● Rotor processing:

The rotating shaft of the generator is forged from a whole high-quality alloy steel. Axial slot is machined on it to embed the rotor coil, and the large teeth are provided with ventilation slots or crescent slots to enhance the cooling of the body and coil ends. , It adopts the special CNC milling machine for the rotor of Italian tower base generator to ensure the efficiency of the generator.

The generator rotor must undergo high-speed dynamic balance experiment and dynamic variable current impedance experiment before leaving the factory to test the mechanical strength of the rotor and ensure excellent inter-turn insulation of the rotor winding.

2. Cooling method

The steam turbine generator adopts closed air self-circulation ventilation method.

Turbine generator rotors below 50MW adopt indirect ventilation cooling;

The rotor of 50MW and above steam turbine generator adopts direct ventilation and cooling. The rotor winding slot is milled with auxiliary slots, and the rotor winding is milled with ventilation holes. Under the action of the fan head and the centrifugal pressure head of the rotor winding vent, the cold air passes through Secondary slots and ventilation holes directly cool the rotor windings.

3. Excitation method

The turbine generator produced can adopt three excitation methods: static thyristor, two-unit AC brushless excitation and three-unit AC brushless excitation.

4. Insulation system

It adopts F-class insulation material and insulation structure, and is evaluated according to the B-class insulation level during operation, and a certain degree is reserved.

5. Design and acceptance criteria

The design, production, and acceptance are carried out in accordance with the latest standards of relevant countries, and at the same time meet the requirements of the latest standards of the International Electrotechnical Commission IEC34-1. According to customer requirements, the turbine generators produced can also be designed, manufactured and inspected in accordance with ANSI, NEMA and other international standards.

Main Specifications

Turbo-Generator Ratings

Turbo-Generator Ratings above 25MW

Our company adheres to the business philosophy of 'survive by quality, develop by reputation, win by service, and be honest in the world', to produce beautiful and durable Automatic Voltage Regulator 2000va Stabilizers based on genuine materials, carefully design and specialized production. We are committed to becoming an enterprise with advanced technology, strong development capabilities, comprehensive production capabilities, complete product categories and customer satisfaction. We sincerely look forward to and believe that we can achieve mutual benefit and win-win results with all customers and colleagues, and create a better future.