Power plant identification system
The power plant identification system (KKS) is a system identification system for the uniform and systematic identification of systems, facilities and equipment in the electricity and heat supply. It is basically suitable for all energy sources. The KKS has been developed by VGB PowerTech since the early 1970s and was first implemented by a power plant operator in 1976. Since the publication of the first VGB guideline on the KKS in 1978, it has been used by power plant builders and power plant operators to clearly designate and identify all components of a power plant. The KKS is particularly a tool for the operation of systems in the power supply, as it supports all operational processes. In addition, the KKS is the basis for digitization and digitized processes. The power plant marking system from VGB - Working Group plant identification and documentation looked after and continually evolving. The KKS markings are regulated in the VGB guidelines VGB-B 105 and VGB-B 106 (English: VGB-B 105e and VGB-B 106e) or the updated editions of VGB-B 105 from 2018: VGB-S- 811-01-2018-01-DE (VGB-S-811-01-2018-01-EN). The KKS has also been incorporated into national and international standards.
construction
The marking according to the KKS consists of a 15 to 17-digit combination of letters and numbers . The letters are usually used to classify the systems and units . The digits are usually used for counting.
The KKS differentiates between 3 types of labeling:
- Process identification for the encryption of systems and devices in the power plant process
- Installation location identification , for the encryption of installation locations and locations in electrotechnical systems
- Room marking , for coding the topographical location of systems and devices in buildings
The KKS labeling follows a fixed structure that is based on structural levels. The level of detail of the license plate increases from left to right. The structure of the classification stages is a lpha- n umerisch. In the following, A is used for letters and N for numbers. A space is placed between the structural levels. When identifying the installation location, the structural symbol " . " (Full stop) is placed between structural levels 1 and 2 .
| Outline level 0 | Outline level 1 | Outline level 2 | Outline level 3 |
|---|---|---|---|
| Overall system | function | Aggregate | Resources |
| A or N | (N) AAANN | AANNN (A) | AANN |
Positions that are only used when necessary are shown in brackets.
Outline level 0 - overall system
The top level designates the overall system and has a counting character. It consists of a number or a letter.
Outline level 1 - Functional overall system
The first level describes a functional overall system in the overall system. It consists of 3 letters and 2 digits with an optional leading digit. Systems in power plants are assigned to the letters according to a given key. The first letter (from the left) denotes the main systems (so-called main groups ); the following letters then indicate the further subdivision into subgroups. The following two digits have a counting character and are referred to as F N counting.
Outline level 2 - aggregate
The second level denotes an aggregate in the subgroup. It consists of 2 letters and 3 digits. The letters are assigned to units (for example a measurement) in power plants according to a given key. The first letter denotes a group of aggregates; the following letter then denotes the further subdivision into subgroups. The following digits are counting. Many companies and plant manufacturers use an additional identifier in which the first numerical number is a functional addition. For example, AA3NN means that it is a matter of venting, AA4NN of emptying and AA6NN of measuring point.
Outline level 3 - equipment / signal identifier
The third level designates a device or signal identifier in the aggregate. It consists of 2 letters and 2 digits. Equipment (for example a drive) is assigned to the letters according to a specified key. The first letter denotes a group of aggregates; the following letter then denotes the further subdivision into subgroups. The following digits are counting. There is a defined assignment for signal identifiers, e.g. B. XB01 is the "open" feedback from a drive. XB51 is the "Not open" feedback from the same drive, XB02 is the "CLOSED" feedback and therefore XB52 is the "Not CLOSED" feedback.
example
The designation is in a flow diagram : 1 2LAC03 CT002 QT12
Outline level 0:
The block 1 of a power plant site receives the marking 1 in this stage.
Outline level 1:
The designation 2LAC03 applies to the 3rd feed water pump in the 2nd water - steam circuit . It means:
- Main group 2L: 2nd steam, water, gas cycle
- Subgroup (2L) A: feed water system
- Subgroup (2LA) C: feed water pump system
- Meter (2LAC) 03: third feed water pump system
Outline level 2:
The marking CT002 applies to the 2nd temperature measurement. It means:
- Main group C: Direct measurement
- Subgroup (C) T: temperature measurement
- Counter (CT) 002: second temperature measurement
Outline level 3:
The marking QT12 applies to the 12th immersion sleeve as sensor protection. It means:
- Main group Q: I&C equipment
- Subgroup (Q) T: Protection tubes and immersion sleeves as sensor protection
- Counter (QT) 12: twelfth protective tube or immersion sleeve
The above example indicates the 12th immersion sleeve on the 2nd temperature measurement on the 3rd feed pump in block 1 of a power plant location.
Function key (main groups)
| ISIN book letter |
Main group |
|---|---|
| A. | Network and distribution system |
| B. | Energy dissipation and self-consumption |
| C. | System of control technology (structure according to control tasks) |
| D. | System of control technology (structure according to procedural tasks) |
| E. | conventional fuel supply and residue disposal |
| F. | Handling of nuclear parts |
| G | Water supply and disposal |
| H | conventional heat generation |
| J | nuclear heat generation |
| K | nuclear auxiliary facility |
| L. | Steam, water, gas cycle |
| M. | Main engine set |
| N | Process energy and media provision for non-power plant consumers |
| P | Cooling water system |
| Q | Auxiliary system |
| R. | Gas generation and treatment |
| S. | Auxiliary system |
| U | Building |
| W. | Plant for renewable energies |
| X | Large machine (not main machine set) |
| Z | Factory and office equipment |
Letters that are not listed are either empty or blocked.
Function key (main groups and sub-groups)
Examples of main groups and subgroups of the function keys:
| B. | Energy dissipation and self-consumption |
| BA | Energy dissipation |
| BAA | Generator discharge |
| BAB | Foundation cells |
| BAC | Generator switch, also pole reversing switch, including cooling system |
| BAT | Machine transformers, including cooling system |
| BA ... | |
| BB | Medium voltage distributors and transformers, normal network |
| BBA - BBS | MS distribution normal network |
| BBT | MV power transformers |
| BB ... | |
| BC | Medium voltage distributors and transformers, in general |
| BF | Low-voltage distributions and transformers, normal network |
| bra | Low-voltage main distributors and transformers, in general |
| BR | Low-voltage distributions, emergency power grid |
| BT | Battery systems |
| BU | DC distributions, normal network |
| E. | conventional fuel supply and residue disposal |
| EA | Solid fuel unloading and storage |
| EAA | Ship unloading facility |
| EAB | Wagon and truck unloading |
| EAC | Transport system |
| EAD | Settling system |
| EA ... | |
| ET | Ash removal and purification system |
| ETA | Conveyor system for wet ash |
| ETB | Storage or settling basin for wet ash |
| ETC | Excavator for wet ash |
| ETD | Conveyor system for granules |
| ETE | Storage system for granules |
| ETG | Conveyor system for dry ash |
| ETH | Storage facility for dry ash |
| ET ... |
| H | conventional heat generation |
| HA | Printing system |
| HAA | LP partial flow preheater system (flue gas heated) |
| HAB | HP partial flow preheater system (flue gas heated) |
| HAC | Eco system |
| HAD | Evaporator system |
| HA... | |
| HF | Bunker, feeder, grinding system |
| HFA | Bunker in front of the grinding plant |
| HFB | allocation |
| HFC | Grinding plant (incl. Classifier) |
| HFD | Flue gas recirculation |
| HFE | Mill air system, support air system |
| HF ... | |
| HH | Main combustion (also with electrical energy) |
| HHA | Main burner |
| HHB | Afterburning grate |
| HHC | Grate firing |
| HHD | Other combustion equipment (e.g. vapor burner, airborne dust burner) |
| HHE | Intermediate storage, extraction and distribution of coal dust |
| HHF | Intermediate oil storage, extraction and distribution |
| HHG | Gas reduction, distribution |
| HH ... | |
| HL | Combustion air system (primary, secondary air) |
| HLA | Sewer system |
| HLB | Blower system, fresh air blower system |
| HLC | External preheating (not by flue gas) |
| HLD | Preheating by flue gas |
| HL ... | |
| HN | Flue gas discharge (without flue gas treatment) |
| HNA | Sewer system |
| HNC | Induced draft fan system |
| HNE | Chimney system |
| HNF | Flue gas circulation |
| HN ... |
| L. | Steam, water, gas cycle |
| LA | Feed water system |
| LAA | Storage, degassing (incl. Feed water tank) |
| LAB | Feed water pipe system (without feed water pump system, feed water preheating) |
| LAC | Feed water pump system |
| LAD | Feed water preheating |
| LAE | HP water injection system |
| LAF | MD injection water system |
| LAH | Approach and exit line system |
| LA ... | |
| LB | Steam system |
| LBA | FD piping system |
| LBB | Hot ZÜ line system |
| LBC | Cold ZÜ line system |
| LBD | Withdrawal line system |
| LBE | Counter pressure line system |
| LBF | HD reducing station |
| LBG | Auxiliary steam piping system |
| LBH | Start-up steam system, shut-down steam system |
| LB ... | |
| LC | Condensate system |
| LCA | Main condensate pipe system |
| LCB | Main condensate pump system |
| LCC | Main condensate preheating |
| LC ... |
| M. | Main machine sets |
| MA | Steam turbine plant |
| MAA | HP turbine |
| MAB | MD turbine |
| MAC | LP turbine |
| MAD | storage |
| LIKE | Condensation system |
| MA ... | |
| MB | Gas turbine plant |
| N | Process energy supply for non-power plant consumers (e.g. district heating) |
| N / A | Process steam system including condensate return |
| NAA | Pipe system (steam) |
| NAB | Pipe system (condensate) |
| N / A... |
| P | Cooling water systems |
| PA | Main cooling water system |
| PAA | Extraction, mechanical cleaning with fresh water cooling |
| PAB | Main cooling water pipe and sewer system |
| PAC | Main cooling water pump system |
| PA ... | |
| Pc | Service water system conventional area |
| PCA | Extraction, mechanical cleaning with fresh water cooling |
| PCB | Line and sewer system |
| PCC | Pumping system |
| PC ... |
| U | Buildings |
| UH | Buildings for conventional heat generation |
| UHA | Steam generator enclosure, steam generator house (boiler house) |
| UHF | Heavy bunker construction |
| UH ... | |
| AROUND | Buildings for main machine sets |
| UMA | Nacelle for steam turbine generator |
| UMB | Nacelle for gas turbine generator |
| UMC | Nacelle for gas and steam turbine generator |
| AROUND... |
Aggregate key (main groups)
| ISIN book letter |
Main group |
|---|---|
| A. | Aggregate |
| B. | apparatus |
| C. | Direct measuring circle |
| D. | Control loop |
| E. | Processing of measured values and signals |
| F. | Indirect measuring circuit |
| G | Electrical and control equipment |
| H | Assembly of the main and large machines |
| J | Nuclear element |
Aggregate key
Examples of the aggregate key
| A. | Aggregates |
| AA | Fittings including drive, also hand-operated |
| FROM | Locks, locks |
| AC | Heat exchangers, heating surfaces |
| AE | Rotating, traveling, lifting and slewing gear |
| AF | Continuous conveyor, feeder |
| AG | Generator sets |
| AH | Heating, cooling and air conditioning units |
| AJ | Shredding devices, only process-related |
| AK | Pressing, packaging equipment, only process-related |
| AT THE | Mixers, agitators |
| ON | Compressor and blower units |
| AP | Pump units |
| AS | Adjusting and clamping devices for non-electrical quantities |
| AT | Cleaning, drying, filtering, separating devices, except * BT * |
| A ... | |
| B. | Apparatus |
| BB | Storage facilities (containers) |
| BE | Shafts (only for assembly, maintenance) |
| BF | Foundations |
| BN | Emitters, injectors, ejectors |
| BP | Flow and throughput limiters, throttle orifices (not measuring orifices) |
| BQ | Brackets, support devices, scaffolding, pipe penetrations |
| BR | Pipelines, channels, gutters |
| BS | silencer |
| B ... | |
| C. | Direct measuring circles |
| CB | Radiation quantities (thermal radiation, flame monitoring, if not * CR * or * CQ *) |
| CD | density |
| CE | Electrical parameters (e.g. current, voltage, electrical power, electrical frequency) |
| CF | Flow, throughput |
| CG | Distance, length, position, direction of rotation |
| CH | Manual input, manual intervention, manually operated sensors (e.g. fire alarms) |
| CJ | Power (mechanical, heat) |
| CK | time |
| CL | Fill level, level (also of interface) |
| CM | Humidity |
| CP | pressure |
| CQ | Quality parameters (analyzes, material properties) except * DD *, * DM *, * DV * |
| CR | Radiation quantities |
| CS | Speed, speed, frequency (mechanical), acceleration |
| CT | temperature |
| C ... | |
| D. | Control loops |
| D ... |
Equipment key (main group)
| ISIN book letter |
Main group |
|---|---|
| - | Electrotechnical equipment |
| K | Mechanical equipment |
| M. | Mechanical equipment |
| Q | I&C equipment (not electrotechnical) |
| X | Original signal |
| Y | Signal usage |
| Z | linked signals |
Resource key
Examples for the resource key:
| - | Electrical equipment according to DIN 40719 Part 2, September 1978 edition |
| -A | Assembly and parts assembly |
| -B | Converter from non-electrical size to electrical size and vice versa |
| -C | capacitor |
| -D | Binary element, delay device, storage device |
| -E | Special resources |
| -F | Protective device |
| -G | Generator, power supply |
| -H | Reporting device |
| -L | Inductance |
| -M | Electric motor |
| -N | Amplifier, regulator |
| -P | Measuring device, testing device |
| -Q | Heavy current switchgear |
| -R | resistance |
| -... | |
| K | Mechanical equipment |
| KA | Slide, valve, flap, cock, bursting disc, orifice |
| KB | Gate, door, insulation panel |
| KC | Heat exchanger, cooler |
| KD | Reservoir, basin, expansion tank (procedural) |
| KE | Turn, drive, lift, swivel |
| Theatrical Version | Continuous conveyor, feeder |
| KJ | Shredding machine |
| KK | Press, packaging machine |
| K ... | |
| M. | Mechanical equipment |
| MB | brake |
| MF | foundation |
| MG | transmission |
| MK | coupling |
| MM | Motor, not electrotechnical |
| MR | Pipeline part, channel part |
| MS | Adjusting drives, not electrotechnical |
| MT | turbine |
| MU | Transmission element, non-electrotechnical converters and power amplifiers, except for clutch and gearbox |
| Q | I&C equipment (not electrotechnical) |
| QA | Protective housing (only to protect I&C equipment) (Siemens deviation from the VGB original) |
| QB | Sensor, if not structural unit with * QP *, measuring orifice |
| QH | Reporting device |
| QN | Governor, governor |
| QP | Measuring device, testing device |
| QR | Measuring pipeline |
| QS | Expansion tank in the measuring circuit |
| QT | Protection tube, immersion sleeve as sensor protection |
| QU | Converter |
Implementation of the marking
In order to clearly identify units in a complete system, process-related identification based on an RI flow diagram is required. The entire system is first divided into individual main systems according to the function key for main groups and then a further division into individual systems is carried out according to the function key for subgroups.
This is followed by the counting subdivision of the individual systems into subsystems or system sections (F N counting).
The principles for F N counting are:
- The direction of counting generally corresponds to the direction of flow of the material flows.
- The count can be carried out continuously or in groups.
- Once the planning has reached a certain degree of completeness, it is no longer possible to change counts once they have been set (too much change effort).
meaning
The main features of the KKS are:
- Uniform and clear identification for planning , approval , construction , operation and maintenance of power plants
- the common application for the trades machine and construction technology as well as electrical and control technology
- Cross-company application for planners, manufacturers and operators .
So that the PPS is an essential prerequisite for the project management during the planning and construction phase as well as for system documentation , management , maintenance and materials management during the operational phase.
Standardization and further development
The essential specifications of the KKS are also used in chemical plants . They are described in the national standard DIN 6779 - labeling system for technical products and technical product documentation. This standard is not fully used even in power plants with the KKS. Both are specified in DIN 6779-1, which states, among other things, that markings are required for all phases of projects in plant construction, operation and demolition, and that they are assigned function-, location- and / or product-related and have a hierarchical structure exhibit. The subject of system identification is defined in great detail in some industries. Example: In the case of pipe connections in a cooling water line in a power plant, each screw in a flange connection is addressed with its own identification.
In 2007 the VGB published a further development of the KKS under the name RDS-PP - Reference Designation System for Power Plants. It is based on the international standards IEC / DIN EN 61346 or ISO 16952 and IEC / PAS 62400. EN 61355 is used for the document identification .
swell
- VGB guidelines VGB-105 and VGB-B 106
- VGB-Standard VGB-S-811-01-2018-01-DE
- VGB-S-811-91-2019-02-DE-EN: KKS Pocketbook (free, German-English), Download KKS Pocketbook