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
. 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.




Table of Size - Power - Torque
SizePower (kW)Torque (Nm)
80 S0,81 - 3,917,80 - 10,40
80 M1,20 - 4,7710,6 - 14,10
80 L1,36 - 6,3013,8 - 18,30
90 M1,76 - 7,3216,5 - 22,01
90 L2,21 - 9,2320,5 - 27,30
90 P1,88 - 11,2625,1 - 33,50
100 M4,11 - 12,8040
100 L4,30 - 16,3049
100 P5,50 - 20,2060
112 M8,10 - 23,869
112 L9,50 - 26,482
112 P9,90 - 31,3097
132 BS11,10 - 40,60113
132 BM15,90 - 11,10150
160 S24,10 - 79,60250
160 M31,10 - 93,10315
160 L29,90 - 109370
160 LB37,9 - 137,5430
200 AK33,5 - 121,5445
200 AS41 - 140530
200 AM47 - 152620
200 AL56 - 159730
200 ALB67 - 178840


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