DL/T 5137-2001 in English

1.0.1 This code specifies the fundamentals, contents and requirements of electrical measurement and energy metering device design in power plants and transformer substations, excluding the test instrument design in the electric laboratories.

1.0.2 This code is applicable to those steam-turbine/gas-turbine thermal power plants whose unit capacity is equal to or larger than 50MW, those hydropower plants whose unit capacity is equal to or larger than 10MW, those pumped-storage power plants whose unit capacity is equal to or larger than 10MW, those transformer substations whose rated AC voltage ranges from 35KV to 500KV, and those DC converter stations whose rated DC voltage ranges from 100KV to 500KV, either newly-built or extended.
The newly-built and extended power plants, transformer substations and DC converter stations that disaccord with the aforesaid provisions may take this code as reference.
1.0.3 This code just specifies the collection scope for the electrical measurement and energy metering data of computer monitor (control) system, as well as the configuration of general measuring meters. The setting and functions of the computer monitor (control) system, remote measurement and metering system in the power plants and substations shall be compliant with the relevant requirements and codes.

1 Scope
2 Normative references
4 Symbols and Terms
4.1 Symbols
4.2 Terms
5 General measuring meters
5.1 General requirement
5.2 Current measure
5.3 Voltage measure and insulation monitor
5.4 Power measure
5.5 Frequency measure
5.6 Synchronized juxtaposition measure
5.7 The public electric measure of the whole plant (station)
5.8 Measure of static compensation device
5.9 The monitor of harmonics in public power grid
6 Energy metering
6.1 General requirement
6.2 Measure of active and reactive energy
7 Electrical measurement in DC converter station
7.1 General requirement
7.2 DC parameter monitor
7.3 AC parameter monitor
7.4 Harmonic parameter monitor
7.5 Electric parameter record
7.6 Energy metering
8 The measure of computer monitor (control) system
8.1 General requirement
8.2 The data collection of computer monitor (control) system
8.3 General measuring meter in computer monitor
8.4 General measuring meter in computer control
9 Transducer of electrical measurement
10 Measure-service current, voltage mutual-inductors
10.1 Current mutual-inductor
10.2 Voltage mutual-inductor
11 Measurement secondary connection
11.1 AC current circuit
11.2 AC voltage circuit
11.3 Secondary measurement circuit
12 The installation conditions of instrumentation device
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
E.1The symbols and explanations of Table-service
E.2 The measurement table of electrical measurement and energy metering (see table E.2.1~Table E.2.16)
Table E.2.1 The measurement table of generator excitation system in thermal power plant
Table E.2.2 The measurement table of generator and generator one transformer unit in thermal power plant
Table E.2.3 The measurement table of generator excitation system in hydropower plant
Table E.2.4 The measurement table of generator and generator one transformer unit in hydropower plant
Table E.2.5 The measurement table of double and three column transformer group in generator group
Table E.2.6 The measurement table of double and three column transformer group in substation
Table E.2.7 The measurement table of wire in generator and substation
Table E.2.8 The measurement table of bus-bar device wire in generator and substation
Table E.2.9 The measurement table of reactive compensation DEVICE in substation
Table E.2.10 The measurement table of DC parts in DC converter station
Table E.2.11 The measurement table of plant-used high/ low-voltage power supply in thermal power plant
Table E.2.12 The measurement table of plant-used high/ low-voltage power supply in hydropower plant
Table E.2.13 The measurement table of plant-used high / low voltage electromotor in thermal power plant
Table E.2.1.14 The measurement table of station-used power and electromotor in substation
Table E.2.15 The measurement table of DC power supply and electromotor in power plant and substation
Table E.2.16 The measurement table of public-service in power plant and substation