LOHER VARIO Siemens

Область применения



Used in Ex-Zones 1 and 2 for

  • Pumps
  • Compressors
  • Fans
  • Branch Oil & Gas

Обзор



The LOHER VARIO Ex px (e) series has a welded steel enclosure for the highest degree of variability and versatility. Flange rings at the ends of the enclosure increase the torsional stiffness and ensure a vibration-proof mechanical design. The steel version allows various bearing concepts, dimensions can be adapted and a wide range of instruments can be mounted.
The surface cooling with flat ribs combined with a defined inner cooling circuit with internal shaft-mounted fan ensure optimum motor utilization. The copper bar rotors used as standard allow the starting and operating parameters to be optimized for each and every application. In conjunction with the Ex p system harmonized for the application, the motors can be used in Zone 1 in the medium power range. Further, the pressurized enclosure permits reliable protection against the ingress of corrosive atmospheres.

Особенности


  • Complies with almost all of the user requirements and specifications (no deviation philosophy)
  • Configuration based on international standards (ATEX, NEPSI, 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:

AH.P / MLFB: 1PS6

Shaft heights:

355, 400, 450, 500, 560

Power range:

80 kW - 2150 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, IP67

Cooling type:

IC 411, IC 416, IC 71W

Type of construction:

IM B3, IM B35, IM V1

Enclosure:

Welded steel

Bearings:

Roller bearings, sleeve bearings

Standards:

IEC, EN, DIN, VDE

Explosion protection:

II2G Ex px (e) II

Type of protection:
without explosion protection

N.A.

Noise level:

max. 85 dB(A) (load, 50 Hz), lower noise versions are available



Features

  • 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 or for desert regions up to +60 °C.
  • 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