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Series, Shunt & Compound DC Machines |
GENERAL INFORMATION
All RTL-TL series motors have been specifically designed to perform any kind industrial function; their mechanical dimensions are such that perfect working is guaranteed.
Motors are built with fully-laminated quadrangular stator with interpoles and, from axis height 132, they can be completed with stabilising (elettr)/ pole-face (elettron) windings.
All the motors are realised according to the following special features:
- high power/size ratio.
- excellent dynamics response to speed variation
The windings are insulated and impregnated with class H materials, while the motor thermal exploitation is realised according to F class.
CONSTRUCTION DETAILS
ROTOR
Rotor packages are obtained by packaging very low-loss magnetic sheets which are insulated on both sides.
Winding are made of wire or metal-strip twin-lead insulated with a class H resins and impregnated with oven-polymerised insulated varnish which guarantee the best dielectric and mechanical features.
Usually corrugated or lap windings are used.
In motors with an axis height over 200, a special winding, the so-called "frog's-foot" winding is used.
Windings are connected to the commutator either by means of electrode welding or by means of tinning with alloys able to withstand temperatures over 180°C.
Winding end plates are fixed by means of fibre-glass bindings.
COMMUTATOR
With the exception of axis height 250, commutators are built for all sizes, by means of die-casting.
This is done in such a way that an escape velocity much greater than the maximum motor speed is guaranteed.
STATOR
The stator magnetic circuits are obtained by means of high-pressure packaging of magnetic sheets, tightened by rivets, up to the axis height of 132.
From axis height 160, they are compacted inside an iron structure built in the workshop
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Coils wound with class H - insulated wire are impregnated with the same varnish which is used for the rotor; this process guarantees that they may be used for a long time in humid or dusty conditions.
Coils are connected with flexible wires joined together by special bands/strips able to withstand high temperatures.
CONSTRUCTION SHAPES
The construction shapes of TL-RTL series motor are normally IM B3 or IM B5 or derivatives as per the contents of UNEL 05513 - DIN 42950 - IEC 34-7 (Code 1-2) table.
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Table of Size - Power - Torque
| Size | Power (kW) | Torque (Nm) |
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| 80 S | 0,81 - 3,91 | 7,80 - 10,40 |
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| 80 M | 1,20 - 4,77 | 10,6 - 14,10 |
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| 80 L | 1,36 - 6,30 | 13,8 - 18,30 |
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| 90 M | 1,76 - 7,32 | 16,5 - 22,01 |
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| 90 L | 2,21 - 9,23 | 20,5 - 27,30 |
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| 90 P | 1,88 - 11,26 | 25,1 - 33,50 |
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| 100 M | 4,11 - 12,80 | 40 |
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| 100 L | 4,30 - 16,30 | 49 |
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| 100 P | 5,50 - 20,20 | 60 |
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| 112 M | 8,10 - 23,8 | 69 |
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| 112 L | 9,50 - 26,4 | 82 |
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| 112 P | 9,90 - 31,30 | 97 |
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| 132 BS | 11,10 - 40,60 | 113 |
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| 132 BM | 15,90 - 11,10 | 150 |
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| 160 S | 24,10 - 79,60 | 250 |
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| 160 M | 31,10 - 93,10 | 315 |
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| 160 L | 29,90 - 109 | 370 |
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| 160 LB | 37,9 - 137,5 | 430 |
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| 200 AK | 33,5 - 121,5 | 445 |
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| 200 AS | 41 - 140 | 530 |
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| 200 AM | 47 - 152 | 620 |
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| 200 AL | 56 - 159 | 730 |
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| 200 ALB | 67 - 178 | 840 |
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Copyright © 1995, italtec srl.
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