DS200DSPAF1ABE - Software EPROM

SPECIFICATIONS

Part Number: DS200DSPAF1ABE
Manufacturer: General Electric
Series: Mark V
Product type: Software EPROM Set
Availability: In Stock
Country of Manufacture: United States (USA)

Functional Description

DS200DSPAF1ABE is a software EPROM Set designed and developed by GE. It is a part of the Mark V control system. These EPROM sets store and execute software programs that control and regulate critical functions within control systems. The specific functionality and purpose of the EPROM may vary depending on the system it is installed in. Such sets are designed to ensure the efficient and reliable operation of these systems, contributing to their precision and performance.

System Analog Controls

Analog controls have played a pivotal role in the history of control systems, particularly in the context of steam turbines. General Electric (GE) introduced the electro-hydraulic control (EHC) system for steam turbines in the 1960s. These analog control systems represented a significant step forward in the evolution of turbine control. Let's explore the evolution of analog controls and their significance in more detail:

• Introduction of EHC System: In the early 1960s, GE introduced the electro-hydraulic control (EHC) system for steam turbines. The first medium-size unit using this technology went into service in 1961, followed by the first large reheat unit in 1968.
• Proportional Analog Controls: The early EHC systems employed proportional controls based on analog circuitry. These controls featured dual redundancy for speed control and a single channel for other control functions. The logic and protective systems were implemented using relays.
• Transition to Integrated Circuitry (IC) Technology: In the 1970s, there was a significant advancement in EHC systems. The discrete component analog circuitry was modernized to take advantage of integrated circuitry (IC) technology, which offered improved efficiency and reliability. Solid-state logic circuits were introduced for some of the protection and logic functions.
• Introduction of EHC Mark II: The transition to IC technology and solid-state logic circuits resulted in the EHC Mark II system. This new iteration featured many IC components and a redesigned cabinet arrangement. It represented a notable improvement in the overall efficiency and reliability of steam turbine controls.
• EHC Mark III and Digital Elements: The subsequent EHC Mark III, mainly used for small- and medium-sized turbines, further embraced IC technology throughout the system. It also incorporated electronic speed sensing and microprocessors for automation, reflecting the integration of digital elements into analog controls.
• Reduction in Component Count and Triple-Redundant Protection: A major improvement in medium and large steam turbine controls was a reduction in component count, which significantly enhanced system reliability. The EHC Mark II version for large steam turbines introduced triple-redundant protection systems for functions that could lead to a turbine trip. This innovation virtually eliminated spurious forced outages, further improving operational reliability.
• High-Pressure Hydraulic System: The associated high-pressure hydraulic system, which used 1600 psig (110 bar) fire-resistant fluid, underwent gradual improvements through the years. This basic technology continues to be used in modern electro-hydraulic controls.

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FREQUENTLY ASKED QUESTIONS

What is DS200DSPAF1ABE?
It is a Software EPROM Set designed and developed by GE

How did EHC systems evolve with the introduction of integrated circuitry (IC) technology?
In the 1970s, EHC systems transitioned to modernize their analog circuitry with integrated circuitry (IC) technology. This transition enhanced system efficiency and reliability, and solid-state logic circuits were introduced for protection and logic functions.

What was the EHC Mark II, and how did it improve steam turbine controls?
The EHC Mark II represented a significant advancement. It featured many IC components and a redesigned cabinet arrangement, resulting in improved overall efficiency and reliability in steam turbine controls.

How did the EHC Mark III incorporate digital elements into analog controls?
The EHC Mark III, primarily used for small- and medium-sized turbines, further embraced IC technology throughout the system. It also integrated electronic speed sensing and microprocessors for automation, reflecting the transition of digital elements into analog controls.