Siemens
(4872) 700-366
skenergo@mail.ru
Mechanical design
Structure of standard DC motors

Type

1G.5/1H.5

1G.6/1H.6

1G.7/1H.7

1G.5/1H.5

Motor detail

Framesize100to160
0.3to76kW

Framesize160to280
31to510kW

Framesize355to450
240to1000kW

Framesize500and630
250to1600kW

Stator

Iron active part

Rectangular design

Rectangular design

Rectangular design

Hexagonal design

Main poles, interpoles and interpole yoke (in solid sheet-metal enclosure for working flux), laminated; compole field is thus designed for quick-response flux change

Fully laminated, non-enclosed stator core; main and compole field circuit are thus designed for quick-response flux change

Fully laminated, non-enclosed stator core; main and compole field circuit are thus designed for quick-response flux change

Fully laminated, non-enclosed stator core; main and compole field circuit are thus designed for quick-response flux change

Uptoframesize112:
main and interpoles stamped

Fromframesize132:
main poles screwed on, interpoles stamped

Framesize160:
main and interpoles stamped

Fromframesize180:
main and interpoles screwed on

Main and interpoles screwed on

Main and interpoles screwed on

Windings

With main pole and interpole winding

With main pole and interpole winding

With main pole, interpole and compensation winding

With main pole, interpole and compensation winding

Stator and field coils impregnated by dipping

Stator and field coils impregnated by dipping

Stator and field coils impregnated by dipping

Stator and field coils impregnated by dipping

No. of poles

Framesize100and112:
No.ofpoles2

Fromframesize132
No.ofpoles4

No.ofpoles4

No.ofpoles4

No.ofpoles6

Rotor

Iron active part with commutator

Laminated rotor core with skewed slots for low noise and torque ripple

Laminated rotor core with skewed slots for low noise and torque ripple

Laminated rotor core with skewed slots for low noise and torque ripple

Laminated rotor core with skewed slots for low noise and torque ripple

Axial cooling-air ducts for high utilization (from frame size132)

Axial cooling-air ducts for high utilization,

1 radial cooling duct also for frame size160

Axial cooling-air ducts for high utilization

Axial cooling-air ducts for high utilization

Commutators for high maximum speeds

Commutators for high maximum speeds

Commutators for high maximum speeds

Commutators for high maximum speeds

Friction-locked connection laminated core - shaft for high torque impulses

Friction-locked connection for frame size 160 and keyed (shaft key) connection laminated core - shaft for high torque impulses from frame size180 upwards

Keyed (shaft key) connection laminated core - shaft for high torque impulses

Keyed (shaft key) connection laminated core - shaft for high torque impulses

Dynamically balanced rotor

Dynamically balanced rotor

Dynamically balanced rotor

Dynamically balanced rotor

Windings

Trickle-impregnated rotor winding (protection against brush dust and moisture)

Framesize160:
Sink-rolled winding impregnation for high protection against dust and moisture.

Fromframesize180:
Fully sealed, dipped rotor winding (increased protection against severe environmental conditions)

Fully sealed, dipped rotor winding (increased protection against severe environmental conditions)

Fully sealed, dipped rotor winding (increased protection against severe environmental conditions)

End shields

Framesize100: Die-cast aluminium end shields.

Fromframesize112: Grey cast-iron end shields for modular mounting of separate fan unit, duct connection, servicing covers and for different types of construction

Grey cast-iron end shields for modular mounting of separate fan unit, duct connection, servicing covers and for different types of construction

Grey cast-iron end shields for modular mounting of separate fan unit, duct connection, servicing covers and for different types of construction

Disk-type end shields made of steel,
Fan unit top, drive end or non-drive end

Condensate drain holes

Condensate drain holes

Condensate drain holes

Condensate drain holes (in unit)

Brushgear, commutation

Brush holders

Coiled-strip spring holder

Pressure finger holder

Pressure finger holder

Coiled-strip spring holder or pressure finger holder

Brush monitoring

Limit value monitoring with microswitch and pressure finger holder

Limit value monitoring with microswitch

Limit value monitoring with microswitch

Signalling brushes

Carbon brushes

Top-cushioned brushes for low-vibration operation. Adjusted brush quality

Top-cushioned brushes for low-vibration operation. Adjusted brush quality

Top-cushioned brushes for low-vibration operation. Adjusted brush quality

Top-cushioned brushes for low-vibration operation. Adjusted brush quality

Commutation

Almost sparkless commutation with converter connection even in the overload range due to optimized compole field, magnetic decoupling of the main and compole field circuit and rotor windings with very good commutation characteristics. Brush life is thus considerably Ionger.

Connection system

Terminal box

Die-cast aluminium terminal box with terminal stud for cable connection

Die-cast aluminium terminal box for frame size160,

Grey cast-iron box for frame size180 upwards with removable cable entry plate to facilitate connection with large cable cross-sectional areas

Die-cast aluminium terminal box with removable cable entry plate to facilitate connection with large cable cross-sectional areas

Grey cast-iron box with removable cable entry plate to facilitate connection with large cable cross-sectional areas

Modular design enables terminal box to be mounted in different ways

Modular design enables terminal box to be mounted in different ways

Modular design enables terminal box to be mounted in different ways

Terminal box can be mounted on the right or left

Ventilation

Standard air flow direction from non-drive end to drive end for intensive commutator ventilation, air flow direction from drive end to non-drive end also possible

Standard air flow direction from non-drive end to drive end for intensive commutator ventilation, air flow direction from drive end to non-drive end also possible

Standard air flow direction from non-drive end to drive end for intensive commutator ventilation, air flow direction from drive end to non-drive end also possible

Standard air flow direction from non-drive end to drive end for intensive commutator ventilation, air flow direction from drive end to non-drive end also possible


DURIGNIT 2000 insulation system

The insulation consists mainly of plastic materials with a high thermal overload capacity and resistance to tracking. It also meets the requirements placed on motors that are operating in tropical conditions (humid and hot climate).

Temperature class F (overtemperature limit 105K at a cooling medium temperature of 40C) is used for 1G.5/1H.5 motors (1HA5 motors, temperature class H in the stator). The output must be reduced by 13% to 87% when the motors are used in accordance with temperature class B (speed 106% only with frame sizes 100 to 160).

Temperature cIass H (overtemperature limit 125K at a cooling medium temperature of 40C) is used for 1G.6/1H.6 motors. The output must be reduced by 8% to 92% when the motors are used in accordance with temperature class F (speed 103%).

Windings, magnetic circuit, current rate of rise and commutation

Field winding

In the standard version, all motors are provided with a field winding for separate field excitation.

The standard field voltage is 310V (refer to section "Field").

Interpole winding

All motors have an interpole winding.

Compensation winding

Motors, frame sizes 355 to 630 have a compensating winding as standard.

Magnetic circuit, current rate of rise

The stator yoke, armature, main and interpoles are laminated.

All motors have a fully laminated magnetic circuit and are, therefore, especially suitable for converter operation. Current rates of rise up to 250IN/s are permissable for dynamic processes.

Commutation, brush material

In addition to pure design criteria, the commutation function depends especially on the operating and ambient conditions of the DC motor. Even critical applications can be handled by selecting suitable brush materials.

The standard brush material has the following application restrictions:

  • Changing load operation, 50% to 150%
  • Relative air humidity 10% to 50%1)
  • Cooling air temperature ? 10C (refer to section "Other operating and ambient conditions")
  • Cooling air without any solid particles (filter or higher degree of protection) and aggressive substances
  • The maximum permissible external vibration levels, as specified on section "Mechanical performance, vibrations", should be observed.

1) The following relationships exist at 40C:

Relativeairhumidity

%

Absoluteairhumidity

gwater/m3air

10

5

50

25

85

40




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  (4872) 700-366
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