High-voltage machines Surface-cooled up to 2,000 kW

1 / 7 PagesView full catalog

High-voltage machines Surface-cooled up to 2,000 kW

Product catalog summary

Design Specifications:

Compliance with standards: IEC, VDE, DIN, ISO, EN.
Protection degree: IP55, cooling type IC411.
Non-sparking design according to EN 60079-15.
Protection type Exe as per EN 60079-7.
Rated voltages range from 2 to 11 kV.
Rated frequency options: 50 or 60 Hz.
Number of poles: 2 to 8, with higher numbers available on request.
Construction types: IMB3 and IMV1, others available on request.

Technical Data and Main Dimensions:

Frame sizes range from 355 to 560 with varying dimensions for different pole numbers.
Rated outputs are specified for voltages between 3 to 6.6 kV.
Dimensions are provided for 6kV, IMB3, with anti-friction bearings.

Frame and Corrosion Protection:

Frames and endshields are made of cast iron with cast-on motor feet.
Design ensures strength, torsional rigidity, and vibrostability.
Paint systems are free from lead and heavy metals, suitable for different climate groups.
Standard and special paint systems are resistant to light, temperature, and abrasion.

Bearings:

Motors are fitted with Series 3 anti-friction bearings, with sleeve bearings for specific models.
Lubrication uses lithium-soap grease, with maintenance-free shaft seals.
Sleeve bearings are available on request, with options for self or force-feed lubrication.

Ventilation and Noise:

Ventilation system optimizes cooling air flow with a uni-directional external fan.
Noise reduction is a key design aspect, with additional measures available for extreme requirements.

Insulation and Winding:

V-Celastik® insulating system using VPI technique, corresponding to Class F.
High impulse withstand capability and mechanical stability of windings.
Quality assurance follows DIN EN ISO 9001 standards.

Operator Protection and Terminal Boxes:

Terminal boxes are designed for high short-circuit strength and safety.
Ample dimensions for safe cable connections, with options for compound-filled entries.
Terminal boxes meet IP54 protection and are suitable for outdoor installation.
Minimum conductor cross-sections are specified based on system fault levels.

Catalog excerpts

High-voltage machines Surface-cooled up to 2,000 kW-1

Rated outputs at U > N =3 - 6,6 kV (Basic design) To relevant standards: IEC, VDE, DIN, ISO, EN Degree of protection IP55, cooling IC411 > 200010000 Non Sparking to EN 60079-15 Type of protection Exe to EN 60079-7 > Frame560 Frame355Frame400Frame450Frame500 Rated voltages from 2 to 11 kV > Frame560Frame400Frame355Frame450Frame500 Rated frequency 50 or 60 Hz > Frame560Frame400Frame450Frame500 Number of poles 2p=2 to 8 (higher number of poles onrequest) Construction IMB3 and IMV1 (others on request) > Rated output in kW 2 1) 48No. of poles6Frame400Frame355Frame450Frame500 1) Higher outputs on request Main dimensions at: 6kV, IMB3, Anti-friction bearings Terminals > air inlet Dimensions in mmFrame SizeNo. ofA AB AE B BC H HD Lpoles3552-8610 730 870 900 70 355 1107 1785 4002-8686 810 950 1000 75 400 1207 1871 4502-8750 940 1080 1120 45 450 1327 2091 5002 > 1) -8850 10501140 1250 93 500 1435 24205604-8950 1160 1190 1400 93 560 1553 2645 > 1) 2p=2 with sleeve bearings only 3 >

Open the catalog to page 1

High-voltage machines Surface-cooled up to 2,000 kW-2

Frame and endshields are made of cast iron. Motor feet are cast on.For each shaft centre height only one frame length is used. To ensure optimum use of material, the finite element method wasused for the design. The frame design ensures the highest possible strength, torsional rigidity, and vibrostability. Segmental ribs and asymmetric arrangement of the terminal boxmake for a larger heat-radiating frame surface. In addition, cooling ribs are arranged on the frame inside around the endwindings. Main and auxiliary terminal boxes are arranged on the cable duct on top of the frame. Cable entry can...

Open the catalog to page 2

High-voltage machines Surface-cooled up to 2,000 kW-3

For particularly high radial loads, all motors are provided with acylindrical roller bearing at the D-end. > Shaft seals are maintenance-free. They protect the bearingsagainst the ingress of dust and spray water, to degree of protection IP55. For lubrication, lythium-soap grease is used. All motors are fittedwith standard lubricators M10x1. Outer bearing covers are designed to accommodate 5 years quantity of spent grease. The shaft seal on the bearing inside is a felt ring; on the bearing out- side a labyrinth seal is used. Our motors in basic design are fitted with Series 3 (medium) antif-riction...

Open the catalog to page 3

High-voltage machines Surface-cooled up to 2,000 kW-4

tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:4.90pt "Arial", sans-serif; } .font1 { font:6.00pt "Arial", sans-serif; } .font2 { font:6.30pt "Arial", sans-serif; } .font3 { font:7.00pt "Arial", sans-serif; } .font4 { font:9.00pt "Arial", sans-serif; } .font5 { font:14.00pt "Arial", sans-serif; } .font6 { font:34.00pt "Georgia", serif; } Ventilation and noise The ventilation system Noise This is characterised by the shape of the fan, the fan cowl, and the arrangement of the ribs, all combining to provide an optimum flow of cooling air. The uni-directional external fan is arranged...

Open the catalog to page 4

High-voltage machines Surface-cooled up to 2,000 kW-5

Developments in the field of insulation led in the 80Βs to the intro-duction of the V-Celastik > insulating system. This is a system usingthe VPI technique which also corresponds to Class F. VPI means that the complete stator (core and windings) isimpregnated with artificial resin in a vacuum/pressure process. The result is a winding with excellent thermal, electrical and mechanical properties.The constantly high quality of the high-voltage insulation is en-sured by the latest in manufacturing equipment. > 7/0267 Wound stator prior to impregnation The impulse withstand level of the windings is...

Open the catalog to page 5

High-voltage machines Surface-cooled up to 2,000 kW-6

In the basic design, the deep-bar squirrel-cage winding consists of copper bars, brazed to short- circuiting rings. Depending on rotor stresses, eit- her butt or grooved bar-to-ring joints are used. For higher starting torques, or to meet therequirements of particular torque character- istics, special slot designs can be used. The comparatively low resistance of the copperwinding results in low current/heat losses and, consequently, in high efficiencies. The copper bars are driven into the core slotsand peened to ensure absolutely positive seat- ing. This prevents any movement of the cage winding...

Open the catalog to page 6

High-voltage machines Surface-cooled up to 2,000 kW-7

tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:6.00pt "Arial", sans-serif; } .font1 { font:7.00pt "Arial", sans-serif; } .font2 { font:9.00pt "Arial", sans-serif; } .font3 { font:14.00pt "Arial", sans-serif; } Terminais and Terminal boxes Operator protection Terminal boxes have a high short-circuit strength (terminais) and are highly short-circuit-proof (shatterproof). In the event of a fault, the internai pressure is vented in one direction only. Injuries due to flying debris are prevented. These properties have been verified in a neutral test laboratory in numerous internal...

Open the catalog to page 7