SECTION 8
ELECTRICAL SYSTEM
Jan 2001
Page 8-1
05114632
8 Electrical System
The electrical system contains all functions necessary for turnkey operation.
This includes the control and starter panel, intensifier reversal circuit,
diagnostics, malfunction warning and protection.
The electrical enclosure and the display, buttons, lights, and electrical
harnesses into and out of this enclosure can be exposed to occasional water
spray and dust per NEMA-12 standards.
8.1 Electrical Overview
There is only one 100hp electric motor on the SL-IV100hp Waterjet Pump. The
control voltage of 24vdc is furnished by the built-in power supply drawing its
power from the motor’s AC circuit.
8.1.1 Motor Starter Circuit
The SL-IV100hp Waterjet Pump is powered by a standard Wye-delta starter
circuit. The built in starter circuit includes the following:
• Manual disconnect with door handle interlock
• Over current protection
• Thermal overload devices.
• The hydraulic circuit is selected to low pressure to allow the motor to
achieve full speed for approximately 5 seconds.
• The motor is also provided with terminal blocks for wire termination
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