Then present your coupon to your service technician to enjoy great cost savings. *Some independent contractor or franchise locations may charge trip or estimate fees or after hours fees. Services, hours of operations, pricing structure, and guarantees may vary by location. Contact your local Roto-Rooter at 800-768-6911 for details.

Since the rotor design had no salient poles the air gap was measured as a displacement of the rotor body to obtain the dynamic center of the rotor. Machine data is as follows: 185 MW, 600 RPM (± 4%), Rotor diameter is approx. 4200 mm (165.4 inches) with a nominal, designed, air gap of 13mm (0.512 in) in a "cold" condition.

With options for gravel, mountain, and road, ROTOR's hydraulic groupsets are designed to perform under pressure and built to last. 12-speed options are compatible with a wide range of hubs, while 13-speed groups use …

A 12-speed hydraulic group with a shifter, derailleur, chain, cranks, chainring, and 12-speed cassette sells for $1,400. The 13-speed group with front and rear hubs sells for $1,800, and the 13 ...

Solution Overview & Benefits. Rotor is a small hydro power plant which provides an easy way to generate electricity by harnessing the current of a river. A vertical axis water wheel is mounted in the center of a circular tube. Induced by the flow of a river, the wheel turns like a turbine. The rotational energy is transferred by the axis to a ...

With the rapid development of artificial intelligence, machine vision and other information technologies in the construction of smart power plants, the requirements of power plants for the state monitoring of hydro-generator units (HGU) are becoming higher and higher. Based on this, this paper applies YOLOv5 to the state monitoring scenario of …

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Generator Air Gap 101. An air gap is the distance between the rotor and stator of a large-scale hydroelectric generator. This gap is a very small distance in relation to the size of the rotor. Its measurement to tight tolerances is critical to prevent damage to and maintain efficiency of the generator. Static measurement of the air gap is ...

Large low speed hydro-generators (Fig. 1) have a very small specific air-gap to stator bore diameter ratio making it virtually impossible to have a perfect centering of the rotor within the stator ...

The generator, manufactured by Sade Vigesa, is cooled by eight water-cooled radiators. The new unit was equipped with four vibration proximity probes, two at the generator guide bearing and two at the turbine guide bearing, as well as one axial vibration probe on the rotor shaft. The probes were supplied by Bently Nevada.

Tech. Travel. Shop. Review: Rotor's 13-Speed Hydraulic Drivetrain. Oct 15, 2020. by Daniel Sapp. Share. Tweet. Add to Favorites. 301 Comments. We've seen …

You'll be invited to go inside one of my generating units and look straight up to admire a 160-tonne rotor in action! I'm convinced you'll love the experience! ... Hydro‑Québec's got just the ticket! Check it out! Contact information. Rapides-Farmer Generating Station – Interpretation Center 2740, rue Saint-Louis Gatineau (Québec ...

HydroTron solar products incorporate latest technology with quality components to deliver a state-of-the-art solar pump solution. The HydroTron helical rotor solar pump is an efficient, cost effect way to move water. Water can be pumped from bores, dams or rivers to supply tanks, animal troughs or irrigation lines.

This work produced a model of hydropower generators with floating rotor rims, consisting of a rigid hub and a flexible rotor rim coupled with flexible connections. …

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2. Dynamic modeling for rotor system of a hydro-turbine generator unit. 2.1. Modeling the example of Francis hydro turbine generator unit A Francis hydro turbine generator unit with rated unit's ...

On-line monitoring of the air gap in a hydroelectric generator provides sig-nificant and timely information about its structural condition. The vibrosystm air gap …

Waterotor is a breakthrough patented hydrokinetic technology that converts over 50% of the available energy in slow moving water (streams, rivers, canals and Ocean currents) into electricity at speeds as slow as 3.2 km/h (0.9 m/s). The excellent performance of the Waterotor is due to our unique rotor that was developed, tested and refined in a ...

On certain hydro-generators, the rotor rim laminations often relax with age and the tight shrink fit between the rotor rim and rotor spider loosens. This relaxing is often accelerated by the forces created during load rejections, overspeed events, and thermal cycling. When the rim keys, that align and keep the rim preloaded, loosen to the point ...

Black & Veatch started with a detailed physical inspection of the rotor spider, directing technicians during their non-destructive examinations to identify and characterize the cracks. Next, the rotor spider, rim and poles were constructed in a 3D finite element model, and behavior was simulated at normal and fault conditions.

FITNESS-FOR-SERVICE EVALUATION. Black & Veatch was contracted to perform a fitness-for-service evaluation for an owner that had found two very large and …

Waterotor Energy Technologies Inc. was founded in 2011 and has become the optimum renewable energy solution to fill energy voids on a global scale. The company is now ready to satisfy global market demands starting with unserved regions and expanding to other markets. Waterotor Energy Technologies Inc. will supply affordable …

This paper describes the application and implementation of the method of analysis of stator and rotor geometry and dynamics of hydro generator rotor based on the analysis of the measurement of air gap …

HYDRO GENERATOR, CHARACTERISTICS AND PERFORMANCE 9.1 GENERAL The electric generator converts the mechanical energy of the turbine into electrical energy. The two major components of the generator are the rotor and the stator. The rotor is the rotating assembly to which the mechanical torque of the turbine shaft is applied. By …

generate electricity. The rotor is built by a number of steel sheets (Figure 2-1, 10.2), which are laminated together with studs and nuts. The poles are slid into the dovetail slots and are keyed by a number of pole wedges [5] [6]. Pictures of the rotor rim and how the poles are attached to it can be found in 10.3.

Rotor field poles on hydrogenerators use dovetail, Tee head or radial bolt attachments to attach to the rotor spider. Dovetail and Tee head attachments are more common and can consis t of single or ... "Crack initiation in hydro power plant rotor rim sheets," Oskar Altzar, KTH Materials Science and Engineering, 2014. About the Author .

The use of hydroelectric generators brings a plethora of benefits. Foremost, they provide a renewable source of energy, reducing dependence on fossil fuels. They also provide a stable, reliable supply of power, and hydroelectric power plants have a long lifespan and low operation and maintenance costs. Furthermore, they are capable of …

This paper presents an overview of a new approach for the diagnosis of synchronous generators based on the stray flux along with the Variational AutoEncoder technique (VAE). A full study on the use of the VAE to detect the rotor inter-turn short-circuit fault of the salient-pole synchronous machine has been conducted. Real data …

The measured eccentricity of the rotor of the hydro-generator unit installed with high precision is lower than 0.15 mm. The unbalanced magnetic pull and vibration caused by the rotor eccentricity are calculated to be very small and consistent with the field measurement.

First Online: 03 September 2017. 1158 Accesses. Part of the Springer Proceedings in Energy book series (SPE) Abstract. An efficient conversion of kinetic energy of river …

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Rotor Hydro is the ideal hydraulics tool to clear stumps and fallen trees from forest areas and public and private garden through the use of excavators. Technical Data Absorbed power 100-145 Hp (73-106 Kw) Weight Kg. 1500 Drill operative diameter 55 cm (70 cm optional) Cylinder (optional) 37 cm Bladed ring (optional) 70 cm VIDEO Catalogs

Call Today. RotorStumper Hydro 17/25 with drill. Rotor Hydro is the ideal hydraulics tool to clear stumps and fallen trees from forest areas and public and private garden through the use of excavators. Contact Jack For …