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LSA 49.3 IC6 / IC8 enclosed low-voltage generators with air/air or air/water heat exchanger, 435–800 kVA

Enclosed low-voltage generators LSA 49.3 IC6 and IC8 of 435–800 kVA with an air/air or air/water heat exchanger. IP55 housing, 400 mm shaft height, four poles, 1500–1800 rpm, 380–480 V. They are fitted where open air cooling is unacceptable, including dusty environments, ships and rooms with limited air exchange.

IC6 (CACA / TEAAC)
435–660 kVA, cooling IC6A1A1, efficiency up to 96.3%
IC8 (CACW / TEWAC)
462–800 kVA, cooling IC8A1W7, water flow 4.5 m³/h
Voltage
380–480 V
Poles / speed
4 poles, 1500–1800 rpm

Technical specifications

IC6 (CACA / TEAAC)435–660 kVA, cooling IC6A1A1, efficiency up to 96.3%
IC8 (CACW / TEWAC)462–800 kVA, cooling IC8A1W7, water flow 4.5 m³/h
Voltage380–480 V
Poles / speed4 poles, 1500–1800 rpm
Shaft height400 mm
ProtectionIP55
Excitation / regulatorAREP / D550, accuracy ±0.25%
Short-circuit current300% of rated, 10 s
Cooling standardIEC 60034-6

Specifications are taken from the manufacturer’s technical documentation. Updated .

Description

IC6 (CACA / TEAAC) has an air/air heat exchanger, cooling code IC6A1A1 per IEC 60034-6, output 435–660 kVA (kVA at 50 Hz, kW at 60 Hz) and efficiency up to 96.3%. The heat exchanger is self-ventilated, so a start from zero (black start) needs no external power for fans. IC8 (CACW / TEWAC) is water-cooled, code IC8A1W7, 462–800 kVA, water flow 4.5 m³/h. The heat exchanger with double tubes and leak monitoring, marine-grade materials and a built-in terminal box are made for ship installations, and the generator withstands three times the short-circuit current. Common data are as follows. Insulation is class H, winding pitch 2/3 (6S), 6 leads, overspeed 2250 rpm, short-circuit current 300% for 10 s. AREP excitation with the digital D550 regulator gives ±0.25% accuracy, and the D550 itself supports parallel operation with the grid, three-phase measurement, a data log and remote communication. Options include a heater and stator thermal protection (PT100), bearing temperature sensors, a rotor earthing brush, an insulated ball bearing, a stainless-tube heat exchanger for IC6, a remote potentiometer, CTs for parallel operation and the R791 radio interference kit.

How to choose

Choose between the versions by the availability of cooling water. Where there is none, fit IC6 for 435–660 kVA; where there is and you need up to 800 kVA, fit IC8. For more than 800 kVA the LSAP range has LSA 49.1 for 660–1010 kVA and LSA 50.2 for 1250–1650 kVA, and for the open version of 10–660 kVA there is the separate LSA 40 – LSA 47.3 item.

Request a price and lead time

LSA 49.3 IC6 / IC8 enclosed low-voltage generators with air/air or air/water heat exchanger, 435–800 kVA. We reply within one business day.

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Or email office@usk.ua or call +38 (044) 339-50-20.

FAQ

How do the IC6 and IC8 versions differ?

IC6 is cooled by an air/air heat exchanger, IC8 by an air/water heat exchanger. Output is 435–660 and 462–800 kVA respectively.

Why is IC6 suitable for black start?

The IC6 heat exchanger is self-ventilated, so the fans need no external power and the generator can be started from zero.

What is the efficiency of LSA 49.3 IC6?

Up to 96.3% at 435–660 kVA. For IC8 the efficiency is not given in the data.

What is the voltage regulation accuracy of LSA 49.3?

±0.25% with AREP excitation and the digital D550 regulator. Short-circuit current is 300% for 10 s.

What water flow does IC8 need?

4.5 m³/h to the air/water heat exchanger, cooling code IC8A1W7.

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