BS EN 61377-1:2006 pdf download

BS EN 61377-1:2006 pdf download.Railway applications一Rolling stock -Part 1: Combined testing of inverter fedalternating current motors and theircontrol system.
3.7
duty cycle of vehicleIload profile
duty cycle of vehicle is the speed and mass of train and track over the time.
The load profile for converter is calculated by the engineering from the duty cycle of vehicle Load profile (currentpower versus time) Is the repetitive cycle or the load current]power under specified conditions such as starting and braking. Also the voltage has to be considered
3.8
rating of a combined system
combination of simultaneous values of electrical and mechanical quantities, with their duration and sequence, assigned to the combined system by the manufacturer
3.9
rated value
numerical value of any quantity included in a rating
3.10
continuous ratin9
mechanical output that the combined system can deliver on the test bed at a given speed for an unlimited time without exceeding the limits of temperature rise given in IEC 60349-2 and
IEC 61287-1
NOTE Several conhinuous ratings may be specified.
3.11
short-time rating (for example 1 h)
mechanical output that the combined system can delivur on the test bed al a given speed for the stated time without exceeding the limits of temperature rise given in Table 2 of IEC 60349- 2 and In IEC 61287-1, starting with the combined system cold, all other requirements of here mentioned standards being satisfied
3.12
short-time overload rating
mechanical output that the combined system can deliver on the test bed at a given speed for the stated time. The test is carried out as specified in 81.6 of IEC 60349.2. wIthout exceeding the limits of temperature rise given in Table 3 of IEC 60349•2 and in IEC 61287-1
NOTE Short.time overload ratings ar, of value in determining the suitability ot combined systems for duties which Involve relatively long periods of operation below the continuous rating followed by a period above it. These are most liltely to occur in locomotive application,. They are not relevant to repeated short-load cycles of rapid iranall and similar duties, and should not be sp.cih.d tar such applications.
3.13
intermittent duty rating
duty cycle on which the combined system may be operated without the temperature rise at any point exceeding the limits given in lEG 60349-2 and lEG 61287-1
3.14
periodic duty rating
periodic duty on which the combined system may be operated without the temperature rise at any point exceeding the limits given in lEG 60349•2 and IEC 61287-1
The specified characteristics shall be submitted to the user before the order for the combined system is placed, unless otherwise specified.
The values of the supply voltage ol the traction system shall be specified by the user, They should preferably be the standard values according to IEC 60850.
5.2 Declared characteristics
Characteristic curves obtained from the results of type tests carried out in accordance with 7.5.
5.3 Combined system characteristics
The specified and declared characteristics of the combined system shown as a function of speed, over the whole application range are:
a) external characteristics such as the mean mechanical torque, the mean values of the d.c. input: voltage, current and power of the combined system;
b) internal characteristics such as the root-mean-square value of the output current of the inverter, the root-mean-square of the fundamental components of the output current and voltage of the inverter, the slip of asynchronous motors, and the excitation current for synchronous motors;
C) internal values such as switching transients, which are the point•to•point and point’toearth peak voltage, temperatures, etc.
NOTE Internal swilchin transients are of use to check the dielecinc lest vollae 01 tIe Coflshtu•fl15
If the efficiency Is an Important parameter, II shall be requested, and this characteristic shall also be shown. Efficiency is parlicularly important for combined systems used on thermal)electric rolling stock, or battery-fed vehicles.
The efficiency characteristic of the combined system shall take into account the motor, the inverter, the cables and other relevant components.
The measurement of efficiency shall include excitation losses in the case of synchronous machines
The characteristics shall be drawn at least for the maximum torque reference (main controller demand) over the entire speed range of the application, in motoring and braking if electric braking is proposed.
Only external characteristics, and the maximum internal repetitive switching transients are mandatory.. The other internal characteristics and values shall be measured, but the results shall not Influence the acceptance of the combined system.
Figures 3 to 6 show examples of the most common mandatory curves.