HOUSING GP-OSCILLATING AXLE 1399106 - Caterpillar

Overview
The UPS 750 is a fully integrated line-interactive system. The system uses a flywheel to store mechanical energy in the form of a rotating mass. When power from the input of the UPS is interrupted, the UPS will convert the energy that is stored in the flywheel to electrical energy. This energy is supplied to the external load until one of the following conditions occur:
The standby generator assumes the load.
The utility power is available again.
The flywheel runs out of energy.Once input power returns, the system will transfer the load back to input source of power without interruption. The UPS 750 can be used in a wide range of commercial power applications. The systems provide voltage regulation and protection from power failures. The system helps provide regulated power to critical loads in the event of sags, surges, or outages.Cabinets
The components of the UPS 750 are contained in two steel cabinets. The systems consist of the following two cabinets:
The System Input/Output (SIO) cabinet
Flywheel Power Unit (FPU) cabinetThe system cabinets are transported as separate individual units, along with the Flywheel Module which is separated from the FPU for shipment. The cabinets are assembled as a single system at the installation site. The System Input/Output Cabinet weighs 2109 kg (4650 lbs) The Flywheel Power Unit Cabinet weighs 1020 kg (2250 lbs), and the Flywheel Module weighs 2245 kg (4950 lbs). Together as a system, the total combined weight of both cabinets is 5375 kg (11850 lbs)Note: The System and Input/Output Cabinet can be factory configured for either single or dual input, with three wire or four wire configurations as well..SIO Cabinet Assembly
Illustration 2 g03424031
SIO cabinet with doors removed (front view 1)
(1) VCI-1
(2) Phase A
(3) Phase B
(4) Phase C
(5) Neutral Bus
(6) K1
(7) Power Distribution DC Board
(8) VCI-3 Board
(9) VCI-2 Board
(10) PS-1 and PS-2 Power Supplies
(11) APC-3 Board
(12) Customer Interface Board (CIO)
Illustration 3 g03609716
SIO cabinet with doors removed (front view 2)
(1) GSM Breakers
(2) Power Distribution for AC Voltage (PDAC)
(3) K3 Bypass Switch
(4) K4 Static Bypass
(5) Static Switch Driver Board
(6) K2 Output Contactor
(7) Input Control Transformer Fuses
(8) Breaker Controller Interface
(9) Line Static Switch Driver
(10) K1 Input Contactor
(11) Line Static Switch Thyristors
(12) APC 3 Board
(13) Customer Interface Board (CIO)
Illustration 4 g03609717
SIO cabinet with doors removed (front view 3 at 45° angle)
(1) Phase A Output Bus
(2) Phase A Input Bus
(3) Phase A Bypass Bus
(4) Phase B Output Bus
(5) Phase B Input Bus
(6) Phase B Bypass Bus
(7) Phase C Output Bus
(8) Phase C Input Bus
(9) Phase C Bypass Bus
(10) Output Neutral Bus
(11) Input Neutral Bus
(12) Bypass Neutral Bus
(13) Control Power Transformer Fuses
(14) Line Static Switch Thyristors
(15) .APC 3 Board
(16) .Customer Interface Board (CIO) FPU Cabinet Assembly
Illustration 5 g03425416
FPU cabinet with doors removed
(1) Utility Gate Driver Board
(2) Utility Inverter Module
(3) Flywheel Interface Board
(4) Accelerator Board
(5) Fan Power Distribution Block
(6) Rotor Position Sensor
(7) DC Cap Module, Inverter
(8) Flywheel Gate Driver Board
(9) Field Coil Driver Board
(10) Flywheel Assembly and Shroud
(11) Vacuum Pump
(12) Fan Input Fuses System Components Description
The components of the UPS 750 are all contained in two separate units known as the SIO cabinet,