CLC/TS 50537-2:2010

SLOVENSKI STANDARD
01-april-2010
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Railway applications - Mounted parts of the traction transformer and cooling system -
Part 2: Pump for insulating liquid for traction transformers and reactors
Bahnanwendungen - Anbauteile des Haupttransformators und Kühlsystems - Part 2:
Pumpe für Isolierflüssigkeiten für Haupttransformatoren und Drosselspulen
Applications ferroviaires - Accessoires des transformateurs de traction et systèmes de
refroidissement - Partie 2: Pompe pour liquide isolant des transformateurs principaux et
bobines d’inductance
Ta slovenski standard je istoveten z: CLC/TS 50537-2:2010
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CLC/TS 50537-2
SPÉCIFICATION TECHNIQUE
February 2010
TECHNISCHE SPEZIFIKATION
ICS 29.180; 45.060.10
English version
Railway applications -
Mounted parts of the traction transformer and cooling system -
Part 2: Pump for insulating liquid for traction transformers and reactors

Applications ferroviaires -  Bahnanwendungen -
Accessoires des transformateurs Anbauteile des Haupttransformators
de traction et systèmes und Kühlsystems -
de refroidissement - Part 2: Pumpe für Isolierflüssigkeiten
Partie 2: Pompe pour liquide isolant für Haupttransformatoren
des transformateurs principaux und Drosselspulen
et bobines d’inductance
This Technical Specification was approved by CENELEC on 2010-01-22.

CENELEC members are required to announce the existence of this TS in the same way as for an EN and to
make the TS available promptly at national level in an appropriate form. It is permissible to keep conflicting
national standards in force.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TS 50537-2:2010 E

Foreword
This Technical Specification was prepared by Working Group 24 of SC 9XB, Electromechanical
material on board of rolling stock, of Technical Committee CENELEC TC 9X, Electrical and electronic
applications for railways.
It was circulated for voting in accordance with the Internal Regulations, Part 2, Subclause 11.3.3.3 and
was accepted as a CENELEC Technical Specification on 2009-12-11.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following date was fixed:
– latest date by which the existence of the CLC/TS
has to be announced at national level (doa) 2010-07-22
The CLC/TS 50537 series “Railway applications – Mounted parts of the traction transformer and
cooling system” consists of four different parts:
• Part 1: HV bushing for traction transformers;
• Part 2: Pump for insulating liquid for traction transformers and reactors;
• Part 3: Water pump for traction converters;
• Part 4: Gas and liquid actuated (Buchholz) relay for liquid immersed transformers and reactors
with conservator for rail vehicles.
1)
The CLC/TS 50537 series shall be read in conjunction with CLC/TS 50534 “Railway applications –
Generic system architectures for onboard electric auxiliary power systems”.
This standardization project was derived from the EU-funded Research project MODTRAIN
(MODPOWER). It is part of a series of standards, referring to each other. The hierarchy of the
standards is intended to be as follows:
———————
1)
Under development.
- 3 - CLC/TS 50537-2:2010
Overview on the technical framework
CLC/TS 50534 defines the basis for other depending standards
CLC/TS 50534
Railway applications - Generic system architectures for
onboard electric auxiliary powers systems
Level 1: Architectures
EN 50546
CLC/TS 50535 EN 50533
Shore (external) supply systems
Railway applications - Onboard Three-phase train line voltage
for rail vehicles
auxiliary power converter system characteristics
Level 2: Systems, Interfaces
CLC/TS 50537-1
EN 50547 CLC/TS 50537-2
Part 1: HV bushing for traction
Batteries for rail vehicles
Part 2: Pump for insulating liquid for
transformers
traction transformers and reactors
CLC/TS 50537-4
CLC/TS 50537-3
Part 4: Gas and liquid actuated
Part 3: Water pump for traction
(Buchholz) relay for liquid immersed
converters
transformers and reactors with
conservator for rail vehicles
Level 3: Components
Mounted parts of the traction transformer and cooling system

Contents
1 Scope . 6
2 Normative references. 6
3 Terms and definitions . 7
4 Operating conditions . 8
4.1 General . 8
4.2 Environmental conditions . 8
4.3 Cooling liquid . 8
4.4 Storage and transport conditions . 9
5 Electrical requirements . 9
5.1 Power supply . 9
5.2 Electrical connection with three-phase train line .10
5.3 Connector (electrical requirements) .11
5.4 Temporary loss of voltage supply .11
5.5 Insulation class and temperature rise .11
5.6 Starting current.11
5.7 Electrical discharge machining (EDM) .11
6 Mechanical requirements .11
6.1 General .11
6.2 Vibration measurement .12
6.3 Preferred dimensions .12
6.4 Connector (mechanical requirem ents) .15
7 Hydraulic requirements .16
7.1 Hydraulic performance .16
7.2 Hydraulic interchangeability .16
7.3 Preferred values .18
8 Fire protection .23
9 Reliability and lifetime .23
10 Material .23
11 Noise .24
12 M arkings .24
13 Documentation .24
14 Testing .25
14.1 General .25
14.2 List of tests .25
14.3 Description of tests .26
Bibliography .29

- 5 - CLC/TS 50537-2:2010
Figures
Figure 1 – Typical connection to three-phase train line .10
Figure 2 – Main dimensions of in-line pumps (axial flow pumps).12
Figure 3 – Main dimensions of radial flow pumps (R-A.1 or R-A.2) .14
Figure 4 – Main dimensions of radial flow pumps with in-line input (R-L.2 only) .14
Figure 5 – Hole pattern of the preferred connector socket .15
Figure 6 – Hydraulic interchangeability across the allowable operating range .17
Figure 7 – Hydraulic interchangeability across an actual flow rate .17
Figure 8 – Characteristics (Q-H-diagram) for pumps I.1 and I.2 at 50 Hz .18
Figure 9 – Characteristics (Q-H-diagram) for pumps I.1 and I.2 at 60 Hz .19
Figure 10 – Characteristics (Q-P-diagram) for pumps I.1 and I.2 at 50 Hz .19
Figure 11 – Characteristics (Q-P-diagram) for pumps I.1 and I.2 at 60 Hz .20
Figure 12 – Characteristics (Q-H-diagram) for pumps R-A.x and R-L.2 at 50 Hz .21
Figure 13 – Characteristics (Q-H-diagram) for pumps R-A.x and R-L.2 at 60 Hz .21
Figure 14 – Characteristics (Q-P-diagram) for pumps R-A.x and R-L.2 at 50 Hz .22
Figure 15 – Characteristics (Q-P-diagram) for pumps R-A.x and R-L.2 at 60 Hz .22

Tables
Table 1 – Main dimensions of pump, type I.1 and I.2 .13
Table 2 – Main dimensions of pump, type R-A.1, R-A.2 and R-L.2 .15
Table 3 – Material of pump casing – Minimum environmental temperature .23
Table 4 – Maximum A-weighted sound power level, LWA in dB, rated load conditions .24
Table 5 – List of tests .26

1 Scope
This Technical Specification covers requirements for electric pumps which generate the circulation of
insulation liquid in traction transformers and reactors of rail vehicles and their associated cooling
system.
The pumps covered by this Technical Specification are rotodynamic pumps driven by a squirrel cage
induction motor which is immersed in the insulating liquid.
CLC/TS 50537-2 gives consideration to both technical and normative requirements of the railway
environment and restricts the variety provided by industry-wide standards for pumps (for example
EN 50216-7 and EN ISO 9906). It determines requirements and tests enabling the interchangeability
especially regarding electrical, mechanical and hydraulic interfaces. Furthermore, service conditions
are described.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
2)
TS 45545 (series):2009 Railway applications – Fire protection on railway vehicles
CLC/TS 50467 Railway applications – Rolling stock – Electrical connectors,
requirements and test methods
3)
CLC/TS 50534 Railway a
...