IPDB › China Industry › Industrial Equipment & Components
China, Chinese Brushless Generator Automatic Voltage Regulator AVR R449 for Leroy Somer Alternator1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Power Generating SetsGenerator Parts AccessoriesAVRR449
Yangzhou East Power Equipment Co., Ltd
Preview:
Product Description Product DescriptionR449 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brush-less generator.In addition to regulating the generator voltage, the AVR circuitry includes under-speed and sensing loss protection features. Excitation power is derived directly from the generator terminals.Positive voltage build up from residual levels is ensured by the use of efficient semiconductors in the power circuitry of the AVR.The AVR is linked with the main stator windings and the exciter field windings to provide closed loop control of the output voltage with load regulation of +/- 1.0%.In addition to being powered from the main stator, the AVR also derives a sample voltage from the output windings for voltage control purposes. In response to this sample voltage, the AVR controls the power fed to the exciter field, and hence the main field, to maintain the machine output voltage within the specified limits, compensating for load, speed, temperature and power factor of the generator.A frequency measuring circuit continually monitors the generator output and provides output under-speed protection of the excitation system, by reducing the output voltage proportionally with speed below a pre-settable threshold. A manual adjustment is provided for factory setting of the under frequency roll off point, (UFRO). This can easily be changed to 50 or 60 Hz in the field by pushon link selection.Provision is made for the connection of a remote voltage trimmer, allowing the user fine control of the generator's output.Product ParametersSPECIFICATIONS:Normal AVR supply power: 2 auxiliary windings(X1, X2, andZ, Z2)Shunt supply: 150V .50/60HzRated overload current: 15A, 10s.Electronic biltlin (overload, short circuit, and loss ofsensing) protection: If excitation current raises over 10Amps for more then 10 seconds, excitation current will drops automatically to about 1A.To reset AVR protection, generator must be stopped (or by cutting supply voltage to the AVR).Protection of power inputs by fuses F1Vollage sensing: 5VA insulated transformer with inputvoltage taps at:Terminals 0-110V = 95 to 140VTerminals 0-220 V= 170 to 260 VTerminals 0-380 V = 340 to 520VOutput Vltage adjustment by using pot P2Other sensing vltages by using an adapting other transformersCurent sensing (arall operation) CT 2.5 VA class 1 secondary current oo/1 (optional).Adjustment of quadrature droop with pot P1Under-speed (U/F) and LAM protection: for knee frequency adjustable use P4.Excitation over crrent adjustment use P5: 4.5 to 15A For 50/60 Hz (U/F) solection use jumper ST3.Load acceptance module:LAM is suppressed by cutting wire marked ST5 LAM (Load Acceptance Module) function.When applying a step load to the generator, the rolational speed (frequency) of the genset drops.I the speed is below the preset frequency the "L AM circuits drops the voltage about 15% and this way reducing the effective step t about 25%.as long as the speed has not recovered to normal values.The "LAM" is used either to reduce the speed drop of the engine, during the step load, or to increase the applicable step load for the same speed variation (turbo charged engines) so the engine can recover normal speed quickly.To prevent ollage silltions, the frequency threshold must be adjusted about 2 Hz below the lowest frequency in normal operation.Packaging & ShippingCarton packaging or customized.shipping by sea or as your requests.Company ProfileYangzhou East Power Equipment Co.,Ltd is located inthe famous historical and cultural city of China.which nameis Yangzhou.Our company has many years of generator, diesegenerator set Production experience.Concentrate on thequality of survival,technological development as purposes,Focus on the research of new products, and these ideas madeour products come up a new level of production technologyand quality.We continue to take international advanced businessmanagement models,and keep attracting research personneland technical personnel to join us.therefore our workinggroup becomes bigger and bigger day by day. Whetherpre-sales support or after-sales service, always bring our usersthe most reasonable answer as well.and The most perfecttechnical solution to solve the worries of the majority of users!Our company produce the diesel genset of all kinds ofbrands which belongs to china and overseas.and our productswidely used in high rise office buildings, hotels, hospitals,Industrial and mining, rural areas, mountain field operations,enterprises, institutions, schools or professional households etThe main products are:semi-automatic,Automatic,Low noiseTwo, three, four wheel mobile diesel generator set series.Specifications and Models from 5 kw to 3000 kw.Our intelligent generator set is widely used in electricpower, post and telecommunications, and otherdepartments, got Customers highest praise.Qur companywill keep"customer first, service first"service and providingyou with a full range of services.Our AdvantagesOur company specializes in high-quality generator solutions, offering reliable performance, advanced technology, and energy efficiency. With a strong commitment to customer satisfaction, we provide tailored products and services to meet diverse power needs. Backed by a professional team and robust after-sales support, we ensure seamless operation and long-term value for our clients.Let me know if you want this customized further!FAQ1. What types of generators do you offer?We provide a variety of diesel generators, and power solutions for industrial, commercial, and residential use, both as standby and primary power sources.2. How do I choose the right generator?Selecting the right generator depends on your power requirements, usage (standby or primary), fuel type, operating hours, and installation environment. We can provide professional advice to ensure you choose the most suitable equipment.3. What is the power range of your generators?Our generators have a wide power range, from small portable generators (25-2000kW) to large industrial generator sets (hundreds to thousands of kW), meeting various power demands.4. Do you offer customized services?Yes, we provide customized generator solutions based on specific customer needs, including specification adjustments, accessory options, and special configurations.5. What is the warranty period for your generators?Our generators typically come with a warranty period of 1 year (depending on the model and application) or 1000hours. During the warranty period, we offer free repairs and technical support.6. Do generators require regular maintenance?Yes, to ensure reliable operation, regular maintenance is recommended, including oil changes, filter inspections, battery testing, and load runs. We offer maintenance plans and support services.7. Do you provide installation and commissioning services?Yes, our team can provide professional installation and commissioning services to ensure the equipment is correctly installed and operates smoothly.8. What is the fuel consumption of the generators?Fuel consumption depends on the generator's power rating and load conditions. We can provide fuel efficiency data for specific models upon request.9. How can I contact after-sales support?You can reach our after-sales support team via our customer service hotline, email, or online support platform, and we will resolve your issues as soon as possible.10. Do you offer generator rental services?NO, we only sale gensets.
Purchasing Request
Note: Send your purchase request, and we will screen suppliers or manufacturers for you free of charge...