The video shows the no-load test of a 5.5 kV slip ring induction motor and allows a look into the brush and slip ring compartment of the motor. This allows you to view directly, the carbon brushes and rotating slip rings. This water-cooled (originally air-to-air-cooled CACA) 4000 kW motor from stock was customized and made ready for delivery in only a few weeks, specifically for a sugar factory on the volcanic island of La Réunion. Once installed, this motor will be driving a sugar cane shredder there.
The slip ring, wound rotor induction motor from our Berlin motor warehouse was converted from air cooling IC611 to IC 81W CACW water cooling exclusively at the request of the customer. This is rather untypical for a slip ring motor. The air-water cooling system is totally enclosed and works as a closed circuit for the internal cooling air. The cooling of the slip ring chamber itself is ensured by air-to-air cooling with a heat exchanger and external fans which are also readily available in our warehouse.
Performance data of slip ring induction motor :
Type: Slip ring motor MEBSSW710-06
Standard: IEC / EN 60034-1
Nominal power: 4000 kW (4 MW)
Nominal voltage: 5500 V
Nominal frequency: 50 Hz
Number of poles: 6 poles
Nominal speed: 991 min-1
Design: IM B3
Frame Size / Shaft height: 710 mm
Degree of protection: IP 55
Cooling type: IC 81W water-cooled
Weight: 19200 kg
Quick motor solution to help keep sugar production lines running
The new shredder motor for this sugar plant needed to be fully interchangeable 1:1 with an existing motor without having to make any further adjustments to the customer's shredder system or foundation. Menzel not only adapted the cooling type of the slip ring induction motor in stock. The motor shaft was also mechanically processed (reducing the diameter and length of the shaft end) and the foot mounting holes were re-drilled in a relatively short time in accordance with the customer‘s requirements. Before delivery, the rotor was rebalanced and the motor went through complete routine tests, including no-load test.
A majority of the slip ring induction motors leaving our motor factory in Germany are custom-made or adapted to produce identical replicas of obsolete motors that are no longer produced by major manufacturers such as Siemens or ABB. Thanks to our unique, extensive motor inventory, we can also react very quickly in an emergency.
In the past, steam turbines were primarily used in sugar factories to drive large sugar cane shredders. Today it is asynchronous motors that move the huge loads involved in sugar production. Due to the shredder's high moment of inertia, the relatively long start-up times and the high demands on the start-up torque, three-phase slipring motors with liquid starters are today’s prime movers.
Slip-ring motors are particularly suitable for heavy starts, especially on unstable power networks. They have a high power density and have a compact design thanks to the internal slip ring properties. The classic slip ring rotor may require a little more monitoring, but is a well proven, particularly reliable and easily maintained technology.
Menzel has been a manufacturer and supplier of large electric motors for industrial plants all over the world since 1927. Our three-phase asynchronous motors with slip ring rotors are available from 75 kW to 8000 kW. They are very robust and extremely resistant to dust, dirt or moisture, which is an advantage for application environments such as a sugar factory. The modular structure of our series enables a variety of cooling and protection types as well as various mounting options.
MENZEL slip ring motors are used in a wide variety of industries such as sugar, cement, paper, power, mining or steel . They are used to drive shredders, crushers, mills, compressors, fans, refiners, etc.
The optimum choice of electric motor depends on the individual application. Our customer focussed, experienced engineers would be happy to advise you!
Website in 9 languages
►►► www.menzel-mot...
LinkedIn
►►► / menzel-motors
Twitter
►►► / menzelmotors
Newsletter
►►► www.menzel-mot...
MENZEL Elektromotoren GmbH
Neues Ufer 19-25
10553 Berlin (Germany)
info@menzel-motors.com
Tel. +49303499220
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
RU-vid playlist with all english videos:
►►► • MENZEL MOTORS - englis...
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
6 окт 2024
