Electromotor 2300 KW SCHORCH

Overview

The Schorch KV6534B-AA04 (listed as Electromotor 2300 KW SCHORCH) is a three-phase high-voltage squirrel-cage induction motor manufactured by ATB Schorch GmbH, Mönchengladbach, Germany. The unit is listed with a rated output of 2300 kW at 6.6 kV, 235 A and 1491 rpm, which corresponds to a 4-pole machine on a 50 Hz supply.

ATB Schorch builds high-voltage motors in several families for safe and hazardous areas, including the KV modular series (160 to 17,000 kW) and the KR and KU series for hazardous areas. Cooling method, enclosure and area classification of an individual unit are defined by its order configuration and must be confirmed from the nameplate or the original motor documentation.

Key Features

• Rated output 2300 kW at 6.6 kV supply
• Rated current 235 A, rated speed 1491 rpm
• Three-phase squirrel-cage induction design for continuous duty
• Built by ATB Schorch GmbH, a manufacturer of large high-voltage motors
• Configuration (cooling, enclosure, bearings) defined per order and nameplate

Technical Specifications

Applications

• Large centrifugal compressors in gas processing and petrochemical plants
• Process, pipeline and water-injection pumps
• Boiler feed and cooling water pumps in power and desalination plants
• Large fans and blowers in heavy industry

Schorch KV Series Selection Notes

ATB Schorch lists the KV range as its modular high-voltage motor series. For the safe-area version the manufacturer gives an output range of 160 to 17,000 kW in frame sizes 400 to 1,200, with 2 to 24 poles and rated voltages from 2.3 to 15 kV. The motors are offered for operation direct on the mains or from a frequency inverter.

The standard mounting arrangements published for the series are B3 (horizontal, foot mounted) and V1 (vertical, flange mounted). The cooling method is IC611, which means a closed internal air circuit cooled through a machine-mounted air-to-air heat exchanger, and the enclosure is IP55 or IP65. A version of the same series with ATEX (IECEx) certification is listed separately for hazardous areas.

These are series limits, not the data of this individual machine. The mounting, protection class, bearing type and terminal box arrangement of a KV6534B-AA04 must be read from its nameplate and order documents. When asking for a replacement, quote the full type designation and serial number, because the manufacturer does not publish a public key for the frame and suffix codes.

How a High-Voltage Squirrel-Cage Motor Works

The Electromotor 2300 KW SCHORCH is an asynchronous (induction) machine. The three-phase 6.6 kV supply to the stator winding creates a rotating magnetic field. With a 4-pole winding on a 50 Hz network, this field turns at a synchronous speed of 1500 rpm. The field induces currents in the short-circuited bars of the squirrel-cage rotor, and the interaction between these currents and the stator field produces torque. The rotor always runs slightly slower than the field; the listed 1491 rpm corresponds to a slip of about 0.6 % at rated load, which is typical of a large, efficient machine.

Squirrel-cage rotors have no brushes or slip rings, so the rotating part needs little routine maintenance apart from the bearings. This robustness is the main reason such motors are chosen for continuous-duty compressors, pumps and fans in process plants.

Starting, Protection and Supply Considerations

A 2300 kW motor draws a high inrush current when started direct-on-line, typically several times its rated current. Before a replacement or spare is installed, the site should confirm that the network, switchgear and protection relay settings suit the motor, or that a soft starter or frequency inverter is used. Typical protection for high-voltage motors includes overcurrent and earth-fault protection, thermal overload, stall and locked-rotor protection, and monitoring of stator winding and bearing temperatures where sensors are fitted.

Installation and Maintenance of the Electromotor 2300 KW SCHORCH

• Foundation and alignment: a rigid, level foundation and accurate shaft alignment to the driven machine reduce vibration and bearing loads.
• Insulation checks: measure stator insulation resistance before first start-up and after long periods of standstill, especially in humid coastal sites.
• Bearings: follow the lubrication interval and grease type given on the motor lubrication plate or in the manual.
• Cooling: keep the heat exchanger and air passages clean; dust and sand reduce cooling performance.
• Condition monitoring: regular vibration and temperature trending helps detect bearing wear, misalignment or rotor problems early.
• Anti-condensation heaters: where fitted, they should be energised while the motor is stopped.

Typical Applications in Oman & the GCC

Motors in the 2 MW class at 6.6 kV are common drivers for gas compressors, crude oil and water injection pumps, seawater intake and desalination pumps, and large cooling fans in power plants. High ambient temperatures in the region can require derating or confirmation of the motor’s temperature rise limits, so the site ambient conditions should be included in any enquiry.

Why Seven Star LLC

Seven Star LLC supplies Schorch high-voltage motors to industrial users across Oman and the GCC. Because motors of this rating are built to order, we verify the nameplate data (type code, voltage, speed, frame, cooling method and area classification) before quoting so that the unit matches the driven equipment and site.

Request a Quote for Electromotor 2300 KW SCHORCH

Send the motor nameplate details or a nameplate photo (type code KV6534B-AA04, serial number), the required quantity, supply configuration (direct-on-line or VFD), area classification and the driven equipment type through our Inquiry Form. We will confirm availability and respond with a formal quotation.

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