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GB/T 3319-2015 English PDF (GBT3319-2015)

GB/T 3319-2015 English PDF (GBT3319-2015)

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GB/T 3319-2015: Confirmation of the rated output of electric locomotives and electric multiple units
This Standard specifies the calculation and measurement method of rated power of electric locomotives and electric multiple units. This Standard is applicable to the calculation and measurement of electric locomotives and electric multiple units..
GB/T 3319-2015
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.280
S 41
Replacing GB/T 3319-1998
Confirmation of the Rated Output of
Electric Locomotives and Electric Multiple Units
(UIC 614 O.1990, Definition of the Rated Output of
Electric Locomotives and Motive Power Units, MOD)
ISSUED ON. DECEMBER 31, 2015
IMPLEMENTED ON. JUNE 1, 2016
Issued by. General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Terms and Definitions ... 5
3 Calculation of Rated Power ... 6
4 Measurement of Rated Power ... 7
5 Measurement Device ... 10
6 Measuring Data ... 10
Bibliography ... 12
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard replaced GB/T 3319-1998 Definition of the Rated Output of Electric Locomotives and Motive Power Units; compared with GB/T 3319-1998, the major technical changes are as follows.
--- Modified “Scope” (see Chapter 1 of this Edition, Chapter 1 of 1998 Edition); --- Added the description of “Terms and Definitions” (see Chapter 2 of this Edition); --- Modified the “maximum rated power” into “maximum output power” in rated power calculation [Translator note. "power" might be replaced by "output", hereafter the same] (see 3.1 of this Edition, 3.1 of 1998 Edition);
--- Added “Measurement of Rated Power” (see Chapter 4 of this Edition); --- Added “Measuring Device” (see Chapter 5 of this Edition);
--- Added “Measuring Data” (see Chapter 6 of this Edition).
This Standard adopts the re-drafting method to modify and use UIC 614 O. 1990 Definition of the Rated Output of Electric Locomotives and Motive Power Units. This Standard has technical differences from UIC 614 O.1990, the clauses related to these differences have been marked with vertical single line (|) on the outside page margin; these difference and causes are as follows.
--- Modified “Scope”;
--- According to China’s requirements for drafting standard, added the description of “Terms and Definitions”;
--- Modified the “maximum rated power” into “maximum output power” in rated power calculation;
--- Added “Measurement of Rated Power”;
--- Added “Measuring Device”;
--- Added “Measuring Data”.
This Standard made the following editorial changes.
--- Added the serial number of formula;
--- Added “Bibliography”.
Confirmation of the Rated Output of
Electric Locomotives and Electric Multiple Units
1 Scope
This Standard specifies the calculation and measurement method of rated power of electric locomotives and electric multiple units.
This Standard is applicable to the calculation and measurement of electric locomotives and electric multiple units.
2 Terms and Definitions
The following terms and definitions are applicable to this document.
2.1 Rated output
The rated power of electric locomotives and electric multiple units indicates the output power measured on the wheelsets in the following two cases.
--- The maximum output power that can be provided within a defined time interval (at least 5min from the cold state);
--- Nominal power, namely continuous power.
However, it shall be emphasized that the power value obtained here shall not be regarded as a basis for comprehensively judging the tractive effort of these electric locomotives and electric multiple units; the evaluation of tractive effort still needs considering other factors.
NOTE. before the issuance of corresponding standards, the measured value indicates the value measured at the rated voltage of power network.
2.2 Electric multiple units
It includes one set of locomotive at least, also indicates the minimum independent unit where the multi-unit train is inseparable during the running period.
2.3 Continuous tractive effort
When the main controller of electric locomotives and electric multiple units is at the D – actually-measured value of dynamic wheel diameter, in mm;
D’ – wheel diameter when dynamic wheel half-worn, in mm;
F’ – in the constant power working condition of locomotives, the actually-measured vehicle hook traction force, in kN;
M – calculated service weight of locomotives, in t;
w – total unit running resistance of locomotives at the corresponding speed, in N/kN. 4.1.3 Reducing calculus of continuous tractive effort of electric multiple units wheel circumference
The continuous tractive effort (F) of wheel circumference, when wheel diameter is half- worn, shall be calculated as per Formula (4).
Where.
P – train weight, in t;
g – gravity acceleration, in m/s2;
wo – unit running additional resistance, in N/kN;
wr – unit curve additional resistance, in N/kN;
wi – unit slope additional resistance, in N/kN;
wa – unit accelerative force, in N/kN.
Thereof, wa shall be calculated as per Formula (5).
Where.
v – train speed, in km/h;
t – time, in s.
4.1.4 Reducing calculus of continuous running speed
4.1.4.1 For step voltage-regulating electric locomotive, the speed shall be calculated to the one when voltage of power network is 25kV, and wheel diameter is half-worn as per Formula (6).
T – measuring time, in min;
u(t) – the instantaneous value of the primary voltage at the test speed point, in V; i(t) – the instantaneous value of the primary current at the test speed point, in A. 5 Measurement Device
5.1 The error of equipment and system required for the measurement of electric locomotive are as follows.
a) Use the test vehicle equipped with dynamometer;
b) Vehicle hook force measuring system, the system error shall be no greater than 0.5%;
c) Running speed measuring system, the system error shall be no greater than 0.5%;
d) Electrical parameter measuring system, the system error shall be no greater than 0.5%.
5.2 The error of equipment and system required for the measurement of electric multiple units are as follows.
a) Running speed measuring system, the system error shall be no greater than 0.5%;
b) Electrical parameter measuring system, the system error shall be no greater than 0.5%.
5.3 The used equipment shall be qualified by the verification of the state legal measuring organization, and within the valid period.
6 Measuring Data
6.1 The electric locomotive data that need to be measured are as follows. a) Vehicle hook tractive effort, in kN;
b) Diameter of dynamic wheel, in mm;
c) Service weight of electric locomotives, in t;
d) Running speed, in km/h;
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