KKS CODIFICATION PDF

KKS CODIFICATION PDF

The KKS system is a classification system for the complete power plant and its components and provides a common language for the designer. IDENTIFICATION SYSTEM KKS Chapter I KKS Guidelines and Total Plant Key Chapter II Function Key Chapter III Equipment Unit Key Chapter IV Component. I have a query which states: One of my client using KK standard codification for P&ID In KKS Codification of P&IDs, the line tag, instrument tag and valve tag.

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If this is not the case, all floor numbering codes of the total plant must be written uniformly with three data characters in AN. Data character F0 contains so called prefix number. Types of Code and Breakdown Levels In consideration of the various requirements placed on the identification of plants, sections of plants and items of equipment in power codificatuon, KKS has three different types of code: Total plant Serial no.

Increased unit sizes, higher rates of kms and further developments in power-plant technology, coupled with the demands made on classification systematics by power plant operators, all called for a uniform and total solution of the classification problem.

KKS Identification System for Power Plants – Function and Type

Due to the size of power plants and the fact that the large number of parties participating are all in different locations, communication problems arise which can incur costs which cannot be estimated in advance.

Special Rules for Mechanical Engineering If several process-related systems are situated in one structure we designate this structure according to the main, most important system. Remember me on this computer. Control and instrumentation equipment which serves more than one main group may be identified under main group C for control and instrumentation, e.

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 F Structure-related identification is expedient where different systems are held by shared supports.

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Supply systems which serve codificatioon one equipment unit are identified on an equal footing as subsystems of the system in which they are installed. On breakdown level 2, transducer racks, supports and frames are identified by means of GZ.

KK standard codification

Room Identification by Numbering Serial no. Drains and vents are identified as far as the final isolation element — codifivation double valves — or as far as the open outlet as part of the drained or vented system originator principle.

D — Loop control circuits They are made up of classifying and numbering code elements. The prefix number is used in cases when for instance in compass of one power unit appear two or more identical subsystems two boiler plants, two turbosets, etc. Regulation part is described in level 1 by process-related installation, and level 2 by the controlled parameter – control part is described by executive device e. CF means the twelfth local measuring circuit of fluid flow the code CF12 is not correct.

G — Water supply and disposal This applies analogously to supply systems. EZ Protection Cdification example: Further applications are subject to agreement between the parties to the project. codifiation

Identification System for Combined Cycle Power Plant (KKS coding)

This code unit can be combined with any breakdown level as necessary for identification. F — Indirect measuring circuits Numbering starts anew when one of the preceding code elements changes. Data character G as well as data character F0 can be omitted in KKS if the further part of designation will remain complete univocal.

Help Center Find new research papers in: Closed-loop controls are identified according to the controlles variable and not after the measuring circuits which coeification the control or the final control element on which the control acts. YB81 XB82 Auto; close, down Main machine sets common to L.

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Deviations with respect to the type of data character A or N and their quantity are allowed by DIN Part 2 and are subject to agreement between the parties to the project. Examples Examples of kka identification of installation spaces in panels To identify the installation space, draw on front of the panel coordinate system origin – so called grid. A Grid and distribution systems B Power transmission and auxiliary power supply C Instrumentation and control equipment D Instrumentation and control equipment for use only when function codes CM to CT are insufficient for the identification of system combinations The subdivisions in F2 and F3, are given in the applicable Function Key.

S — Ancillary systems Where several mechanical systems identified differently in data characters F2 and F3 are connected to one mechanical service system, the following code letters are used for the service systems on breakdown level 1 in the data characters concerned as follows: H — Subassemblies of main and heavy machinery Such modifications are subject to agreement between the parties to the project.

Q — Auxiliary systems Installation zone X Grid zone Installation zone Y. Modern methods codiflcation 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.

For this purpose, data character B1 can contain: The numerical digits count and subdivide the unit e. The grid sizes and the meaning and type of the data characters A or N are subject to agreement between the parties to the project.