Format of Code. Types of Code and Breakdown Levels. In consideration of the various requirements placed on the identification of plants, sections of plants and . Assignment of System Codes to Mechanical Equipment and Measuring Circuits. .. Brüter – Kernkraftwerkgesellschaft mbH • Siemens AG, Corporate Groups E. The Siemens Kraftwerk-Kennzeichen-System (KKS), abridged version, stations , KKS has three different types of code: Process-related code Process-related.
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Spaced notation promotes the comprehensibility and mnemonic quality of codes. Requirements to be met by the Identification System To perform the set tasks the Identification system must siiemens capable of satisfying the following requirements: A – Grid and distribution systems for electric power plants, thermoelectric power plants and heating plants The prefix number is used in cases when for oks in compass of one power unit appear two or more identical subsystems two boiler plants, two turbosets, etc.
Special Rules for Civil Engineering Originally the titles of the breakdown levels were based on the process-related code: Subsequent isolation and pressure equalization valves in the measuring circuit are components of the measuring circuit ocde therefore classified as KA.
Format of Breakdown Levels The code is made up of breakdown levels. The AN number must consist of three digits. G — Water supply and disposal Z — Workshop and office equipment Notation of Codes The code may be written with or without spacing but in such a way that it cannot be misinterpreted.
These analog signal processing elements receive the code of the equipment kkz concerned.
Usually the code is written above the line: The additional code is not an alternative code for the components identified under breakdown level 3. The flag points in the direction of fluid flow. This is subject to agreement between the parties to the project. On breakdown level 2, the individual windings are classified but not on a phase-specific basis by means of GT for transformer equipment and numbered starting on the high-voltage side.
All signals in such automatic regulation system in breakdown level KKS 0, 1, 2, are described identically.
It is a common practice to apply a grouping numbering of equipment units: Measuring circuits are identified according to the system within the interfaces of which the sensor is installed. The grid sizes and the siemebs and coce of the data characters A or N are subject to agreement between the parties to the project.
Room Identification by Coordinates Serial no. X special structures, Y bridge structures, Z ducting structures. However, such schemes kos not have the effect of reserving numbers in other applications, not even within the same engineering discipline. The origin and development of KKS It is absolutely essential for the parties participating in the construction and operation of ccode power plant to agree upon a standard system for the designation and classification of the plant, its part and components.
Wherever possible, all three alphabetical symbols are permanently allocated, including their associated boundary constraints and task allotment in modern power plant technology. Equipment Unit Identification In the process-related code which is the most important and mostly applied type of codes in every branch of engineering, the entire system is subdivided according to the function or process.
APPENDIX I: KKS SYSTEM
There are also cases of deviations consisting in using the dividing symbol twice, and AN, e. Equipment Unit-Specific Analog Signal Processing and Measuring Circuits Equipment unit-specific analog signal processing elements comprise control and instrumentation equipment sie,ens is only provided for one equipment unit such as control interface, protective logics, instruments in the feeder and command termination for final control elements.
A working party, consisting of planners, operating companies, authorized inspectors and simens authorities, was set up in with the task of finding such a solution.
Codes may be spaced by the insertion of blank spaces or interposing lines at predetermined points and by multiple- line notation: Closed-Loop Control Circuits The principles for the identification of measuring circuits apply analogously to the identification of closed-loop control circuits on breakdown level 1.
YB81 XB82 Auto; close, down System code System code consists of three letters and two digits. The latter consist of data characters occupied by alpha and numeric symbols. C — Direct measuring circuits EA – Conditioning of signals related to functional control group.
It is a common practice to apply s grouping: Increased unit sizes, higher rates of automation and further developments in power-plant technology, coupled siemsns the demands made on classification systematics by power plant operators, all called for a uniform and total solution of the classification problem.
They should be established individually for different control and instrumentation concepts.
Subgroups The classifying coding letters and designations are established on a non-project-specific basis in the KKS keys, namely as: It is not allowed to use any other letters. W — Renewable energy plants C — Instrumentation and control systems G — Electrical devices AN numbering may be consecutive or grouping. Calculation of new value on base ckde 2 variables, e. Conventional heat generation Unit control system L.
The prefix symbols may be omitted if the information contents of the codes remain unambiguous.
Mechanical Supports Supports may be identified using the system code or the structure code. Structure Code Serial no. Skip to main content.