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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QCG Central chemical supply free for use e.
It is not allowed to use any other letters. Originally the titles of the breakdown levels were based on the process-related code: W — Renewable energy plants QCU Central chemical supply free for use e. Installation Space Code Serial no. Signals and Signal Applications Breakdown level 3 is used to identify signals and their applications.
The numerical digits count and subdivide the unit e. Kraftwerk – Kennzeichen – System KKS was published in kkx edition by the VGB and is now the basis for the designation of installations and subsystems in power plants.
H — Conventional heat generation Where an equipment unit serves as an interface between two or more systems, its system code is assigned on the siwmens principle, i. Steam system common to LA. Measuring Circuits Measuring circuits comprise analog signal acquisition, conditioning, distribution and measured data recording and indicating processing elements.
APPENDIX I: KKS SYSTEM
Modern methods of digital systems programming and ability of efficient use of technical documentation require to use the concept of functional group positions A1 and A2 and number of the group positions An – three numerals depending on degree of complexity of automatic analog control system. Enter the email address you signed up with and we’ll email you a reset link. Supply systems which serve only one equipment unit are identified on an equal footing as subsystems of the system in which they are installed.
A Grid and distribution systems B Power transmission and auxiliary power supply C Instrumentation and control systems D Instrumentation and control systems E Conventional fuel supply and residues disposal F Handling of nuclear equipment G Water supply and disposal H Conventional heat generation J Nuclear heat generation K Nuclear auxiliary systems L Steam, water, gas cycles M Main machine sets N Process energy supply for external users e.
Coding letters and designations of the main groups F1 as given in the Function Key: D — Loop control siemnes In case for eg. A – Grid and distribution systems for electric power plants, cide power plants and heating plants Special Rules for Mechanical Engineering EY – Conditioning of signals related to functional protection group of technical and electrical protection system of the unit. M — Main machine sets F — Indirect measuring circuits These analog signal processing elements receive the code of the equipment unit concerned.
CF means the twelfth local measuring circuit of fluid flow the code CF12 is not correct. Identification in data character A2 is governed by the physical variable.
KKS Identification System for Power Plants – Function and Type
Redundant zeros must be written e. This is subject to agreement between the parties to the project. A working party, consisting of planners, operating companies, authorized inspectors and other authorities, was set up in with the task of finding such a solution.
Equipment Unit Code Equipment Unit Code consists of two letters, three digits and sometimes one additional letter data character A3 which can be omitted. Structure-related identification is expedient where different systems are held by shared supports.
The AN number must consist of three digits. The outdoor area is designated in the breakdown level 1 by symbols: The data characters in parentheses may be omitted if the code remains unique. Rules on the Keys Equipment unit identified in breakdown level 2 belongs always to a system identified in breakdown level 1. YB71 XB72 Control room; close, down EB – Conditioning of signals related to single drive control. Identification of the functional groups involved in process-related tasks so as to relate them to the principal task concerned may be performed by using the alpha characters in Cde Numbering begins anew for each structure.