LOHER Tube-cooled Motor Siemens

Область применения



Used in Ex-Zones 1 and 2 for

  • Pumps
  • Compressors
  • Fans
  • Branch Oil & Gas

Обзор



The version with tube cooling covers the upper power range for flameproof motors and extends up to 6500 kW. Here, the stainless steel cooling tubes - concentrically arranged around the active part of the motor - act as an air-to-air heat exchanger. The special inner cooling system with X ventilation, axial and radial cooling slots ensure a consistent temperature level. The rugged version allows safe, reliable and straightforward operation in Zone 1 both for line and converter operation.

Особенности


  • Complies with almost all of the user requirements and specifications (no deviation philosophy)
  • Configuration based on international standards (ATEX, GOST-R, CCOE certified)
  • High level of acceptance in the various sectors. For instance, Shell and DOW recommend these motors
  • Complete project documentation guarantees minimum planning costs
  • High degree of cost effectiveness and low operating costs as a result of the optimum electrical and mechanical values
  • High degree of variability and versatility using a welded steel enclosure (to adapt the dimensions, mounted components)

Технические данные



Motors:

DH.. / MLFB: 1PS4

Shaft heights:

710, 800, 1000

Power range:

800 kW - 6500 kW

Number of poles:

2 - 16 poles, higher pole numbers on request

Voltage range:

3000 V - 11000 V

Rated voltage:

3.3 kV / 4.16 kV / 6 kV / 6.6 kV / 10 kV / 11 kV

Frequency converter:

Line and converter operation

Degree of protection:

IP55, IP56, IP65

Cooling type:

IC 511, IC 516

Type of construction:

IM B3, IM B35, IM V1

Enclosure:

Welded steel

Bearings:

Roller bearings, sleeve bearings (only for gas group IIB)

Standards:

IEC, EN, DIN, VDE

Explosion protection:

II2G Ex d(e) IIB T4

Type of protection:
without explosion protection

N.A.

Noise level:

max. 86 dB(A) (load, 50 Hz), lower noise versions are available



Features

  • Also available for exceptional requirements such as dust explosion protection or double protection Ex e & Ex d.
  • Corrosion protection using special paint finishes according to the manufacturer''s standard or customer''s specification.
  • The motors are available as special version for polar regions down to -40 °C (without pre-heating of the motor) or desert regions up to +60 °C.
  • When required, vertical motors can also be equipped with thrust bearings for high axial and radial loads.
  • Operation with frequency converters is possible without any complex system test.
  • Wide range of connection systems for large cable cross-sections, high short-circuit strength or phase-segregated version.
  • Optimized starting and operating parameters and high efficiency by using copper bar rotors as standard.

Дальнейшая информация


  • Brochures
  • Pumps, fans, compressors