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2.2
Product Description
The power generating systems MB7500-110 generate a sinusoidal
voltage of 110 V with a quartz-stable frequency of 50Hz.
A full-load power of 7500W can be drawn. Its preferred application is
in road-vehicles and motor-boats. The special feature of the VSCF-
system (variable speed constant frequency) is that out-put voltage and
out-put frequency are extensively independent of the motor speed.
The power supply unit consists of a three-phase AC generator, an
electronic module MB7500-110AC and an operator panel MB6001ST-
110.
The generator is powered by the engine via a V-belt or a flat belt.
The electronic module regulates the out-put voltage to 110V and
stabilises the out-put frequency to 50 Hz.
The electronic modules MB7500-110AC have no controls and
displays.
All operational messages and fault signals are indicated on the operator
panel MB6001ST-110.
The output lines have to be protected according to the cross-section,
which has been used.
The electronic modules MB7500-110AC have an integrated over
current disconnection function. If the current-flow is higher than 80A
over a time of 1 second, the device will be switched-off.
The LED I> lights up and the LED U> blinks.
Is the over current higher than 250A for more than 10
µ
s, the device is
disconnected. The LED System lights up and the LED U> blinks.
The connections between generator and electronic module MB7500-
110AC have to be inherently earth-fault-resistant and short-circuit-
proof. If this is impossible, a 50A automatic circuit-breaker (B
characteristic) at the outgoing section of the generator has to be
installed.
