Three-phase Liquid Rotor Starter

For more than 50 years Elektroschaltgeräte Meerane GmbH has been developing and producing starters for slip ring motors.

With the experience of many years from special applications and customised products, a powerful product line has been developed which covers the entire range of appications.

The perfected and reliable starters for slip ring motors made by Elektroschaltgeräte Meerane GmbH stood the test in state-of-the-art control system for plant construction.

The excellent properties of slip ring motors make them partivularly suitable for special applications. Special importance has the proportionality of the intensity of current to the released torque which comes close to the breakdown torque. For starting of these motors we offer 2 basic types of starters for specific ratings:

• Liquid rotor starter for three-phase slip ring motors: motor rating 200kW approx. 10MW
• Drum starter for three-phase slip ring motors: motor rating 59kW-410kW

A suitable, economical and safe solution can be offerd for other rating ranges and special operating conditions thanks to the experience gained in many years.

Starters, made in Meerrane, are very verastile. Mainly these starters used for applications in the cement indurstry, in water süpply and distribution, in open pit mining, in iron and steel production etc. To attain optimum technical and economical solutions, calculations and designs are made to find the right starter for the respective application on the basis of important operating and environmental data.

Depending on the starting and positioning requirements, three-phase liquid starters ane made with:

• Smooth sheet steel containers
• Radiator containers
• Radiator containers and additional fans
• Smooth sheet steel containers and built-in cooling coil
• Smooth sheet steel containers, separate hiat excanger and recirculating pump

All types anre also available in tandem construction.

Standard:

• without steerage (electric operating data up terminal strip)
• conventional relay- and contactor- control
• automatic control
• automatic control for regular work
• automatic control for current regulator starting

Options:

• Fixed or variables starting times
• Customized gate voltage

Standard:

• Limiting temperature monitoring
• Liquid level indicator
• Liquid level monitoring
• Automatic setting range limiter
• Automatic switching off by actuating the manual emergency drive
• Low-maintenance spindle gearbox
• Drain cock

Options:

• Short-circuit contactor
• Customized control
• Electronic locked rotor protection
• Electrolyte heater (frost protection)
• Heat exchanger including pipe connections
• Cooling coil
• Protective system (optional IP30, IP 43 oder IP54

• FA 6260 ... series in the lower part of the starter (no cable conduit recommended)
• FA 6270 ... series on busbar in the switch cabinet of the starter (no cable conduit required).

• Low-maintenance
• Robust construction
• High operating safety
• Continuously adjustable starting and setting of speed
• Variable setting and adjustment of resistance
• Remote-controllable
• Cooling variants
  • self-ventilation
  • fan cooling
  • water cooling

Liquid Rotor Starters are versatile:

• Speed controller
• Load resistor
• Braking resistor
• Slip resistor