Cascade system


  • Webster's Revised Unabridged Dictionary
    • Cascade system (Elec) A system or method of connecting and operating two induction motors so that the primary circuit of one is connected to the secondary circuit of the other, the primary circuit of the latter being connected to the source of supply; also, a system of electric traction in which motors so connected are employed. The cascade system is also called tandem systemorconcatenated system ; the connection a cascade connection tandem connectionorconcatenated connection , or a concatenation; and the control of the motors so obtained a tandem controlorconcatenation control .In the cascade system of traction the cascade connection is used for starting and for low speeds up to half speed. For full speed the short-circuited motor is cut loose from the other motor and is either left idle or (commonly) connected direct to the line.
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In literature:

Over beyond the cascade the Dominion is erecting a vast system of locks on its own ground.
"A Summer's Outing" by Carter H. Harrison

In news:

Mr Mastrangelo will be discussing Petrobras's decision to use a shuttle-tanker for its oil export system at the Cascade and Chinook developments.
Cascade Energy has introduced what it says is a first-of-its-kind energy efficiency management system designed to help industrial companies master their energy spend.
The different modules can be combined and cascaded for a range of applications using Fohhn's dedicated Quick-Lock system.
Scattered showers today mainly at the coast and higher elevations with a few showers west of the Cascades through the morning as a low pressure system moves through.
A weak weather system will move over the Cascades bringing the chance for light snow through out the day Friday.
An advanced control algorithm uses a cascaded control system with both position and pressure feedback, while an integrated controller eliminates external wiring between the valve and electronics.
A sapphire gem among the scenic jewels of the National Parks System, Crater Lake remains a remarkable experience for all who find their way to its location high in the Cascade Range in Southwestern Oregon.
According to Hill PHOENIX, chief among the advantages of using CO2 in a cascade system is the greatly reduced refrigerant cost: CO2 is $.50 per lb.
"Now we're looking at the Cascades as a mountain system," Sherrod said.
Computer troubles freeze United Airlines' system, bringing a cascade of delays.

In science:

In order to prepare these systems the non-extensive Boltzmann equation can be solved numerically in a parton cascade simulation as described in the previous section.
Non-Extensive Approach to Quark Matter
In the second part of this review we compiled the most important numerical results on parton cascade simulations of non-extensive systems.
Non-Extensive Approach to Quark Matter
First, the cascading effect has been simulated on three well known networks: the IEEE 300 bus test system, the IEEE 118 bus test system, and the WSCC 179 bus equivalent model.
Topological Analysis and Mitigation Strategies for Cascading Failures in Power Grid Networks
IN TRODUC T ION North American Electric Reliability Corporation (NERC) defines a cascading failure as “The uncontrolled loss of any system facilities or load, whether because of thermal overload, voltage collapse, or loss of synchronism, except those occurring as a result of fault isolation” .
Topological Analysis and Mitigation Strategies for Cascading Failures in Power Grid Networks
We also make an assumption that the system is at the limit of the maximum load and so the failure of a single component may lead to a cascade of overloading failures.
Topological Analysis and Mitigation Strategies for Cascading Failures in Power Grid Networks