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For continuous submersible operation or operation only when submerged, Combimac provides a wide range of surface cooled electric motors. Typical applications for these electric motors are dredging-, deep well-, and sewage pumps.
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The workhorse in all industry, asynchronous motor, in IP23 or IP55.
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DC Machines
Our production range provides you with the ideal solutions for a great variety of applications.
The machines will be adjusted to your individual requirements, if necessary.
Performance characteristics:
- Shaft heights: 112 to 1,000 mm in angular design, larger sizes in round design
- Range of output: 10 to approx. 8,000 kW
- Range of Torque: 20 to approx. 900,000 Nm
Features:
All prevalent protection and cooling systems, in horizontal and vertical designs.
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AC motors from LDW meet all your demands regarding reliability and efficiency. We design and construct motors that provide the best possible solution for your application.
Our line of products includes induction motors with cage rotors or slip ring rotors as well as synchronous motors with brushless or brush-type excitation.
Performance characteristics:
- AC motors for high voltage and constant speed up to 15 kV and 25 MW
- AC motors for variable speed at the converter up to 50 MW
- All prevalent types of construction, protection and cooling systems
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Induction motors suitable for marine applications. Low and Medium Voltage. Aluminium, cast iron and steel frames. Normativa: IEC 60034, IEC 60072-1, EN 50347. Main naval registers approval.
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Designed to DIN EN 60034 (IEC 72) Motors for voltage ranges > 6 kV to 11 kV are 20% derated compared to the basic design, 1.07 to 1.2-fold power increase at 60 Hz, construction types IM B3, IM B35 and IM V1 to DIN/IEC, robust, low-vibration design, degrees of protection IP 23, IP 54, IP 55, class F insulation, VEMODUR-VPI-155 insulation system, energy-efficient and environment-friendly, various modifications possible
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Designed to DIN EN 60034 (VDE 0530),IEC 34 Motors for voltage ranges > 6 kV to 13 kV, 1.07 to 1.2-fold power increase at 60 Hz, construction types IM B3, IM B35 and IM V1 to DIN/IEC, robust, low-vibration design, degrees of protection IP 23/IP 24, IP 54, IP 55, class F insulation, VEMODUR-VPI-155 insulation system (vacuum-pressure impregnation), efficiency-optimised and environment-friendly, various modifications possible
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The use of permanent magnets to create a constant flux in the air gap, results in synchronous performance with the robust design of an asynchronous induction motor. The permanent magnets are made from neodymium iron boron (NdFeB) or samarium cobalt (SmCo). Both materials provide the powerful magnetic material at room temperature, with high flux density at high magnetization.
AC PERMANENT MAGNET
Applications that require high torque at low speeds often use synchronous motors with reducers, as standard induction motors generate plenty of torque, but unfortunately not at low speeds. New synchronous motor designs using permanent magnets make it possible to have low speed and high torque in one package, eliminating gearboxes and other mechanical components. Also for high speed applications permanent magnet motors provide improved properties. The motor also delivers high torque at low speed, a benefit traditionally associated with dc motors.
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As a specialist manufacturer of marine motors we have accumulated long years of experience and the very latest technology, allowing us to design and manufacture various types of motor functionally as ships' machinery.
Meanwhile, we have established output series enabling a full compliance to the characteristics and conditions of use demanded for a variety of auxiliary machineries (e.g. pumps, compressors, deck machineries, etc.). Thus the optimum type of motor can be selected to suit the purpose of use. A rich array of models including the TID, ID, TDV, IDV, TIT, TTS, TIF, TIV, IVC, and IX are available, depending on the protection degree, method of installation, cooling method, etc.
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For various naval applications, for example pumps, compressors, fans or winches, Combimac supplies the following type of asynchronous AC (alternating current), shock resistant, electric motors:
MILD SHOCK
The type 43 electric motor is a totally enclosed fan cooled motor, meeting the naval requirements for equipment with mild shock and low noise & vibration requirements.
MEDIUM SHOCK
The type 50 electric motor is similar in design to the type 43 electric motors however meeting higher shock demands. Furthermore as a result of this higher shock resistance all IEC frame sizes up to 400L are manufactured from nodular cast iron. The design of the type 60 motors is derived from the type 50 motors, thus meeting relatively high shock levels, however aiming for a lower mass and therefore providing a low weight, high shock resistant motor.
HIGH SHOCK
The type 48 electric motor design has been developed over the years to meet the most stringent shock levels and, if required, combined with ultra low noise & vibration levels. The motors consists of a completely steel welded construction that makes them suitable for meeting shock figures of 340g and are therefore often used onboard submarines.
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Various high-speed electric motors, up to 50.000 rpm and 150 kW power rating, have been designed and manufactured to meet our customers' high-speed requirements. COMBIMAC high-speed motors are often used to drive test equipment connected with bearings, seals and transmissions.
Furthermore, most of the high-speed motors have been designed to meet the customers' individual interface and motor performance requirements.
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Designed to DIN EN 60 034 (VDE 0530), electrical design to IEC 34 and NEMA, to ship classification rules, construction types IM B3, IM B35 and IM V1 to DIN/IEC, robust low-vibration design, degree of protection IP 23/ IP 54, class F insulation, insulation system VEMODUR-VPI-155, vacuum-pressure impregnation, efficiency-optimised and environment-friendly, various modifications possible
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Approved by GL, BV, DNV, LRS, ABS, RS, energy-efficient and environment-friendly, designed to DIN EN 60034 (IEC 72), mounting dimensions and assignment of output ratings to DIN 42673, 42677 or progressive, robust low-vibration grey cast iron design, degree of protection IP 55, higher degrees up to IP 65 on request, class F insulation with thermal reserve, class H available as an option, terminal box optionally top-mounted, RHS or LHS, various modifications possible
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Azipod® is a podded electric propulsion unit where the variable speed electric motor driving the fixed pitch propeller is in a submerged pod outside the ship hull, and the pod can be rotated around its vertical axis to give the propulsion thrust freely to any direction. Thus the ship does not need rudders, stern transversal thrusters or long shaftlines inside the ship hull.
Azipod propulsion system was introduced some 20 years ago and the system has gained a position of a major propulsion system for luxury cruise liners and ice going tonnage. The concept has many benefits. Due to the azimuthing propulsion its manoevrability is excellent, it saves space inside the vessel hull and gives a lot of freedom for ship design. Especially in ice going vessels the system improves the performance in ice operation. However, the most important benefit of the system is reduced fuel consumption and CO2 emissions.
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A monitoring system which combines high performance and economy can be equipped with up to 4 CRTS, and it is also equipped with graphic display functions.
Information communication can be processed through built in personal computer.
The monitor system, which adopts a continuous supervisory method that corresponds one to one with measuring point, assures a highly reliable system construction.
The monitor system is constructed with plug-in type modules that allow the direct reading of measured values and setting values. The module unit construction also enables maintenance work to be easier.
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