Secheron Ur46-81s User manual

Document number: SG104148TEN

Language: En Revision: B01 Issue date: 20.8.2012

Instructions manual

DC High speed circuit-breaker

UR46-81/82S

Number of pages: 68

SG104148TEN-B01 Established by: Desbaillet Checked by: Released by:

Signature:

Date:

Secheron

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Date:

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

2File: 1-UR46-8S_front.fm

Geneva, Switzerland

Reproduction in whole or part, or disclosure to a third party prohibited.

Design modifications

This document is not contractual and contains information corresponding to the level of tech-

nology at the date of release. Sécheron reserves the right to modify and/or improve the product,

whose characteristics are described in these documents, as required by new technology at any

time. It is the purchaser’s responsibility to inform himself, no matter what the circumstances, of

the product’s maintenance conditions and requirements.

Sécheron reserves all rights, especially those arising from our general delivery conditions.

Document information

In case of dispute between a non-English version of this publication and its corresponding

English version, the English one is the only legal version.

It is important to keep this manual for the lifetime of the equipment and to pass it on to any

subsequent owner or user.

Structure of this instruction manual

• Chapters A to F: all the information needed to understand, install, use, perform the mainte-

nance and order a spare part for the standard version of this device.

• Chapter G. Options: all the information needed to understand, install, use, perform the main-

tenance and order an option or a spare part for these options.

• Chapter H. Customization: all the information needed to install, use, perform the maintenance

and order a part for these customized assemblies (chapter not included without customiza-

tion).

Note! When the “Customization” chapter is present, always refer to it at first before referring to the

other chapters which are intended to the standard device.

Throughout this manual:

• the numbers between brackets (x) refer to the corresponding positions in the figure shown in

the same sub-chapter.

the blue texts are hyperlinks, to be clicked on to navigate in electronic files; they are black in

printed manuals.

Sécheron SA Tel. +41 (0) 22 739 41 11

Rue du Pré-Bouvier 25 Fax:+41 (0) 22 739 48 11

1217 Meyrin- Geneva info@secheron.com

Switzerland www.secheron.com

Secheron

UR46-81/82S Revision changes

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

File: 2-UR46-8S_rev_en.fm 3

Revision changes

Version: SG104148TEN

Revision Date Established by: Description

A00 18.4.08 Desbaillet New manual

B00 19.12.08 Desbaillet

B.1.2: added (Tamb=40 °C); modified INss text.

Exchanged B.2 and B.3.

C.3: modified.

C.8.2: added text.

C.9.2: modified.

D.1: changed greases.

D.7.6: changed text.

D.8.2 + D.9 + D.11: removed Molycote.

G.1.2: added “and the lever (9) “; changed drawing.

G.1.3: added.

G.3: added kit number.

G.3.1 + G.3.2: added stroke.

G.3.1 + G.4.1 + G.6: added important.

And many small updates throughout the manual.

B01 20.8.12 Desbaillet

A.2: added safety rules.

B.3: modified.

C.1: modified all.

C.8: added.

C.12.1: added.

C.13.2: changed drawings; modified values.

C.15, C.16: added.

D.1: changed all.

D.2: added important.

D.4: modified all.

E.1.1.A: changed for procedure “2”.

F.4.1: added pos. 1192: modified pos 25, 26.

F.4.2: added pos 325; changed drawing.

F.4.3: changed.

F.4.4: put 1200 instead of 1250.

G.2.4: modified pos 1280 + 1290.

G.3.1, G.3.2: added note.

G.4: changed all; removed BI24.

G.5, G.6: added.

G.10: added.

And many small updates throughout the manual.

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Revision changes UR46-81/82S

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

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Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

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UR46-81/82S Table of contents

Table of contents

A. Introduction

A.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-9

A.1.1 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-9

A.1.2 Uses of the high speed circuit-breaker . . . . . . . . . . . . . . . . . . . . . . . . . . .A-9

A.1.3 Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-10

A.1.4 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-10

A.1.5 Device identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-11

A.1.6 Routine tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-11

A.2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-12

A.2.1 General precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-12

A.2.2 Safety requirements for the installation . . . . . . . . . . . . . . . . . . . . . . . . . .A-12

A.2.3 Hazard information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-13

A.2.4 Personnel use requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-13

B. Technical specifications

B.1 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-15

B.1.1 Breaking current parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-15

B.1.2 Main circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-15

B.1.3 Control circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-15

B.1.4 Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-15

B.2 Breaker control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-16

B.2.1 Typical values for the closing coils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-17

B.3 Auxiliary contacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-18

B.3.1 Commutation diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-18

C. Installation

C.1 Weight and dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-19

C.2 General requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-20

C.3 Delivery check and acceptance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-20

C.3.1 Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-20

C.3.2 Transport damage procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-20

C.4 Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-20

C.5 Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-21

C.6 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-21

C.7 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-21

C.8 Tightening torques. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-21

C.8.1 General procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-21

C.8.2 Standard tightening torques. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-21

C.9 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-22

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C.9.1 Mounting position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-22

C.9.2 Clearances to be observed in operating position . . . . . . . . . . . . . . . . . . C-22

C.10 Low voltage connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-23

C.11 Earth connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-24

C.12 High voltage connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-25

C.12.1 Recommended dimensions of the bars/cables. . . . . . . . . . . . . . . . . . . . C-25

C.13 Maximum current release (Id) setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-26

C.13.1 Direct release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-26

C.13.2 Setting procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-26

C.14 Final visual inspection and tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-27

C.15 Security check advised during operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-28

D. Maintenance

D.1 Required tools and consumable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-29

D.2 Periodicity of the inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-30

D.3 Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-30

D.4 Part replacement criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-31

D.5 Visual inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-32

D.5.1 Arc chute removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-32

D.5.2 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-32

D.5.3 Arc chute refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-32

D.6 Detailed inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-33

D.6.1 Cleaning the contact area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-33

D.6.2 Measuring the “W” contact wear dimension . . . . . . . . . . . . . . . . . . . . . . D-33

D.6.3 Check and adjustment of the X clearance . . . . . . . . . . . . . . . . . . . . . . . D-34

D.6.4 Check and adjustment of the Y clearance . . . . . . . . . . . . . . . . . . . . . . . D-35

D.6.5 Check and adjustment of the Z clearance. . . . . . . . . . . . . . . . . . . . . . . . D-36

D.6.6 Check and grease. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-36

D.7 Replacement of the main contacts and the pole . . . . . . . . . . . . . . . . . . . . . . . . . . . D-37

D.7.1 Removal of the fixed contact, the pole and the metal strips . . . . . . . . . . D-37

D.7.2 Replacement of the moving contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-38

D.7.3 Reassemble the metal strips, the pole and the fixed contact . . . . . . . . . D-38

D.7.4 Refit the arc chute. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-39

D.8 Replacement of the fork unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-39

D.9 Replacement of the arc chute parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-40

D.9.1 Replacement of de-ionizing plates and baffles . . . . . . . . . . . . . . . . . . . . D-40

D.9.2 Replacement of the horns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-40

D.10 Replacement of the closing device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-41

D.11 Replacement of the closing core and the spring . . . . . . . . . . . . . . . . . . . . . . . . . . . D-41

D.12 Replacement of the direct release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-42

D.13 Replacement of the pusher and the shock absorber. . . . . . . . . . . . . . . . . . . . . . . . D-43

D.14 After sales services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-43

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UR46-81/82S Table of contents

E. Trouble shooting

E.1 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-45

E.1.1 Main circuit malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-45

E.1.2 Auxiliary switches malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-46

E.2 Adjustments of the closing coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-47

E.3 Performance check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-48

E.4 Replacement of the auxiliary contacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-49

F. Wear & spare parts catalogue

F.1 List description: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F-51

F.2 Recommended spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F-51

F.3 After sales services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F-51

F.4 Catalogue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F-52

F.4.1 Main circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F-52

F.4.2 Closing device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F-54

F.4.3 Auxiliaries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F-54

F.4.4 Direct tripping device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F-55

F.4.5 Frame and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F-55

F.4.6 Arc chute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F-56

G. Options

G.1 Manual closing device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-57

G.1.1 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-57

G.1.2 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-57

G.1.3 Spare part catalogue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-57

G.2 Over current release indicator & contact wear indicator . . . . . . . . . . . . . . . . . . . . G-58

G.2.1 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-58

G.2.2 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-58

G.2.3 Spare and wear parts catalogue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-58

G.3 Manual tripping device: M3 type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-59

G.3.1 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-59

G.3.2 Maintenance - J clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-59

G.3.3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-60

G.4 Indirect releases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-60

G.4.1 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-60

G.4.2 Installation - Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-61

G.4.3 Maintenance - J clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-61

G.4.4 Maintenance - In case of replacement of the direct release . . . . . . . . . G-61

G.4.5 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-61

G.4.6 Spare and wear parts catalogue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-61

G.5 Checking and adjusting the J clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-62

G.5.1 Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-62

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G.5.2 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .G-62

G.6 Vertical mechanical release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-63

G.6.1 Description of the vertical mechanical release . . . . . . . . . . . . . . . . . . . . G-63

G.6.2 Installation - Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-63

G.6.3 Installation - Adjust the J clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-63

G.7 Varistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-64

G.7.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-64

G.7.2 Trouble shouting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-64

G.7.3 Spare parts catalogue. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-64

G.8 Direct release type DE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-65

G.8.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-65

G.8.2 Maximum current release (Id) settings . . . . . . . . . . . . . . . . . . . . . . . . . . G-65

G.8.3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-65

G.8.4 Spare and wear parts catalogue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-66

G.9 Position indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-66

G.9.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-66

G.10 VEAM low voltage connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-67

Secheron

UR46-81/82S Introduction

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

File: a-UR46-8S_Intr_en.fm A-9

A. Introduction

A.1 General description

A.1.1 Description

The UR46 is a DC high-speed current-limiting circuit-breaker, with natural cooling. It has been

designed to ensure, on detection of a short-circuit, a trip free and rapid opening of its main

contact; and to quickly extinguish the arc by generating a constant over-voltage during the whole

interruption process.

04601

1. Fixed insulating frame made of glass-fibre reinforced insulating material.

2. Main circuit, consisting of a lower connection terminal (21), a moving contact (22), an upper

connection terminal (23) and a fixed contact (24).

3. Over-current release.

4. Arc chute.

5. Closing device and fork.

6. Auxiliary contacts housing with pusher (7).

8. Coolers

A.1.2 Uses of the high speed circuit-breaker

Because of its short response time following the detection of an excess current (short-circuit,

overload detection...), it is particularly suitable for the protection of the DC equipment in traction

substations or industrial installations.

DANGER!

To ensure maximum safety, servicemen and operators must read the A.2 "Safety

precautions" section before starting installation, maintenance and adjustment of

the device or before starting to operate it.

Secheron

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Introduction UR46-81/82S

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

A-10 File: a-UR46-8S_Intr_en.fm

A.1.3 Main features

• High insulation level to earth and between main contact

• High breaking and making capacity

• Long service life

• Simple maintenance

• Small dimensions

A.1.4 Functions

Closing

When a closing pulse is received, the closing device (1) moves the fork (2), which closes the

moving contact (3) and applies the contact pressure to the main contacts (3 & 9). The pusher (4),

pushed by the moving contact (3), actuates the auxiliary contacts (5). The closing force is

absorbed by the shock absorber (6).

Holding

Once the main contact is closed, the contact pressure is maintained by the closing device (1),

either with a reduced holding current (E type) or with a permanent magnet (M type).

Opening

The circuit-breaker opens either through an over-current release or through an appropriate

opening order:

• An over-current that exceeds the maximum current setting value, causes the direct release

rod (7) to move up, which lifts (8) the fork (2), thus releasing the moving contact (3).

• Opening the breaker on remote order cuts off the holding current of the closing device

(E type) or applies a reverse current pulse (M type), which causes the fork (2) to retract.

The pusher (4) then opens the moving contact (3) and actuates the auxiliary contacts (5).

The arc generated between the main contacts (3 & 9) moves upwards between the horns (11)

into the arc chute (10) and is split by the baffles (12). The ionized gases are mostly neutralised

between the de-ionizing plates (13).

03649-S

1^21 Secheron

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Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

File: a-UR46-8S_Intr_en.fm A-11

UR46-81/82S Introduction

A.1.5 Device identification

The plate that is riveted to the device carries the data should you need to contact Sécheron.

The CE mark indicates that this device complies with the basic health and safety regulations of

the European Economic Area (EEA).

03653

A.1.6 Routine tests

These tests define the particular characteristics that each device has to fulfil at the end of the

production. These values are recorded in a routine test sheet, which is attached to the device at

delivery.

1. Device type 6. International standards number

2. Identification number 7. Rated voltage

3. Serial number 8. Manufacturer, site of manufacture

4. Rated operational current 9. Routine test certificate

5. Manufacture date 10.CE mark

Type:

Nr: IEC/EN

Sécheron SA, Genève

Ser. Nr:

In: Un:

Date

Secheron

SECHERON

CONTROLE

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8 5 4 6 0

Introduction UR46-81/82S

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

A-12 File: a-UR46-8S_Intr_en.fm

A.2 Safety precautions

A.2.1 General precautions

A.2.2 Safety requirements for the installation

of electric equipment connected to a Sécheron’s circuit-breaker mounted on a vehicle.

When mounting electrical equipment inside a vehicle, the consequences of an eventual fault in

the circuit breaking of the Sécheron’s circuit-breaker must absolutely be taken into account.

All the necessary precautions must be taken in order to ensure the safety of the people inside

(and/or outside) the vehicle if such a fault happens. Sécheron declines any responsibility in the

case of non respect of the directive EN 45545.

DANGER!

High voltage electricity can kill or cause serious injury.

Never touch the circuit-breaker before the high voltage circuit is neutralized and the

installation is properly earthed.

All inspection, maintenance and installation operations carried out on the circuit-

breaker must be performed with the power off and the circuit-breaker earthed.

Some controls require the use of low voltage (DC) electrical supply. Follow the

safety requirements in force to carry out these operations.

When performing installation, inspections and maintenance, keep your hands away

from moving parts during the opening and closing operations of the circuit-breaker.

Do not attempt to service the internal parts without the presence of another person

who is trained in first aid.

Modifying, removing, deactivating or otherwise changing components in any way

may affect the safety of the device. Not using parts from the original manufacturer

can affect the performance and safety of the device and automatically waives

Sécheron’s warranty

A circuit-breaker that appears to be damaged or defective should be disconnected

or made inoperative and secured against unintended operation until they can be

repaired by qualified personnel.

When isolating electrical equipment, the following five safety rules have to be

observed: disconnect from the power supply / take the necessary means to prevent

reclosing of the isolating switches / test absence of voltage by approved means /

ensure earthing and short-circuiting by approved means / protect adjacent live

parts by covers and barriers and fit a suitable warning notice.

Secheron

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

File: a-UR46-8S_Intr_en.fm A-13

UR46-81/82S Introduction

A.2.3 Hazard information

Hazard information in this document has the following meanings:

A.2.4 Personnel use requirements

The instruction manual describes the authorized ways to install, operate and service the

device, and it may only be installed, operated and serviced in accordance with these instructions.

Sécheron will take no responsibility for injury or damage if the device is installed, operated and

serviced in any other way.

During installation, maintenance and operation of the device, technicians and operators are

responsible for:

• the device and the working area around the device;

• the personnel in the device area;

• ensuring that the safety test is fully completed before the high voltage circuit is connected.

Electricians should be certified according to local regulations with experience of similar types of

installations. They must have proven skills in reading and working with drawings and cable lists,

as well as knowledge of local safety regulations for power and automation. Work with the elec-

trical equipment must be performed by skilled or instructed technicians only.

• A skilled person is an individual with technical knowledge or sufficient experience enabling

him to avoid the hazards that electricity/mechanical devices/chemicals etc. can create.

• An instructed person is an individual adequately advised or supervised by a skilled person, in

order to avoid the hazards that electricity/mechanical devices/chemicals etc. can create.

DANGER!

Immediate danger to life!

Failure to observe this information will result in death or serious personal injury!

WARNING!

Risk of serious personal injury!

Failure to observe this information could result in death or serious personal injury!

CAUTION!

Risk of minor personal injury!

Failure to observe this information may result in minor personal injury!

Important!

Risk of damage to equipment!

Failure to observe this information could result in damage to equipment

WARNING!

If safety precautions are not followed, there is risk of personal injury.

Secheron

▲I

Introduction UR46-81/82S

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

A-14 File: a-UR46-8S_Intr_en.fm

This page intentionally left blank

Secheron

UR46-81/82S Technical specifications

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

File: b-UR46-8S_tech data_en.fm B-15

B. Technical specifications

B.1 Characteristics

B.1.1 Breaking current parameters

Iss = Prospective sustained short circuit current

Îss = Peak of Iss

Icut off = Cut off current

Id= Setting of maximum current release

di/dt = Initial current rate of rise

UNe = Rated voltage

Ûarc = Maximum arc voltage

tb= Total break time

tc= Time-constant of the circuit

tl= Opening time

B.1.2 Main circuit

Refer to the corresponding data sheet for complementary information.

B.1.3 Control circuit

B.1.4 Operating conditions

Unit UR46-81S UR46-82S

Rated voltage UNe 900 V 1800 V

Maximum operational voltage 1000 V 2000 V

Rated insulation voltage UNm 3000 V 3000 V

Rated service current INe 4600 A 4600 A

Conventional free air thermal current (Tamb=40 °C) Ith 4600 A 4600 A

Rated short-circuit making and breaking capacity according

to EN-50123-1-2

ÎNss

INss

TNc

180 kA

125 kA

100 ms

115 kA

80 kA

31.5 ms

Maximum arc voltage Ûarc ≤2500 V ≤4000 V

Nominal voltage Un24, 36, 48, 72, 96, 110, 220 Vdc

Supply voltage limits (-25°C < Tamb < +40°C) 0.7Unto 1.25Un

03659_S

Icut off

Iss

0.63 Iss

Îss

di/dt

Ûarc

UNe

Ambient outdoors temperature Tamb -25 °C to +40 °C

Altitude h ≤1400 m

Flammability To standards NF F 16-101 - NF F 16-102 – NF ISO 1928

Secheron

VVWVN

Technical specifications UR46-81/82S

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

B-16 File: b-UR46-8S_tech data_en.fm

B.2 Breaker control

The circuit-breaker can be maintained in the closed position using either a reduced holding

current (E type) or without current (M type).

Note! Sécheron recommends the protection of the closing device coil using an automatic circuit-

breaker with thermal protection, having the following characteristics: a closing pulse duration of

0.5-1 sec, the ability to trigger the circuit-breaker several times consecutively and a holding

current that is limited to 5% of the closing current.

Electric holding: E type

A. Start of the closing pulse: the contacts F + G close.

B. Closing pulse: 0.5 to 1 s.

C. Start of the holding current: the contact G opens.

D. Holding: a R1 resistance limits the holding current to 5% of the closing current.

E. Opening: the contact F opens to provoke the interruption of the holding current.

03602

Magnetic holding: M type

A. Start of the closing pulse: the contacts E close.

B. Closing pulse: 0.5 to 1 s, then the contacts E open.

C. Holding: achieved by the permanent magnet.

D. Opening: the contacts F close to provoke a current pulse of the opposite polarity to the

closing current. The duration of this pulse is 0.5-1 s, then the contacts F opens. The opening

current is 20 % of the closing current.

03604

Important!

A longer closing pulse may burn the coil.

R1: holding resistor S: automatic circuit-breaker

Rp: parallel resistor Rs: serial resistor S: automatic circuit-breaker

–

~ 5%

100%

00,5 1 t [s]

B C

~ 20%

100%

0,5 1 tctc+1

tc+0.5

t [s]

–

1^21 Secheron

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Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

File: b-UR46-8S_tech data_en.fm B-17

UR46-81/82S Technical specifications

B.2.1 Typical values for the closing coils

* Optional voltage

R1: resistor to be inserted in the holding circuit of the E type; the power to be considered for the

resistor choice is 220 W (4x55 W).

Rs: resistor to be inserted in serial with the coil in the opening circuit of the M type; the power to

be considered for the resistor choice is 50 W (200 W / 4).

Rp: resistor to be inserted in parallel with the closing coil in the opening circuit of the M type.

Notes

• Values given for ambient temperature range between -30°C and 70°C. The Imax and Imin

values are given for the most unfavourable values of voltage and temperature.

•R

min = 0.92 x Rnom; Rmax = 1.08 x Rnom.

• These values refer to DC voltage or rectified full-wave voltage.

• The total opening time with a recovery diode is 2.5 s (not recommended as the opening time

is too long).

• Sécheron recommends to protect the control circuit (while opening) with a varistor.

Coil characteristics Closing E type holding M type opening

Pulse 0,5 to 1 [s] Pulse 0,5 to 1 [s]

Unom

Umin

Umax

Rnom

Inom

Imin E

Imin M

Imax

Inom

Imin

Imax

Inom

Imin

Imax

[V] [V] [V] [Ω] [A] [A] [A] [A] [Ω] [A] [A] [A] [Ω][Ω] [A] [A] [A]

24 16.8 30.0 0.575 41.7 22.5 25.0 70.9 11.4 2.00 1.38 2.54 2.36 1.33 6.07 3.81 8.49

36 25.2 45.0 1.10 32.7 17.7 19.6 55.6 25.0 1.38 0.95 1.74 5.30 2.99 4.31 2.73 5.96

48 33.6 60.0 2.30 20.9 11.3 12.5 35.4 45.7 1.00 0.69 1.27 9.40 5.35 3.05 1.90 4.27

64* 44.8 80.0 3.64 17.6 9.5 10.6 29.9 79.4 0.77 0.53 0.97 17.20 9.00 2.30 1.45 3.20

72 50.4 90.0 4.40 16.4 8.8 9.8 27.8 100.0 0.69 0.48 0.87 21.20 11.97 2.16 1.36 2.98

110 77.0 137.5 9.40 11.7 6.3 7.0 19.9 210.0 0.50 0.35 0.63 40.00 20.00 1.61 1.01 2.26

125* 87.5 156.3 11.95 10.5 5.6 6.3 17.8 272.0 0.44 0.30 0.56 52.00 26.00 1.42 0.89 1.99

220 154.0 275.0 37.60 5.9 3.2 3.5 9.9 840.0 0.25 0.17 0.32 160.0 80.00 0.81 0.50 1.13

Power consumption [W] 1300 400 400 2200 55 2.3 1.2 3.6 200 15 25 12 38

Secheron

Technical specifications UR46-81/82S

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

B-18 File: b-UR46-8S_tech data_en.fm

B.3 Auxiliary contacts

B.3.1 Commutation diagram

03672

M. Main contact

A. Switching of auxiliary contacts (a+b)

Number of auxiliary contacts 5a (NO) + 5b (NC) in standard configura-

tion

Rated voltage (potential free contacts) 24 to 220 Vdc

Maximum breaking current

– Ohmic load at 110 Vdc

– Inductive load τ= 15 ms at 110 Vdc 1 A

0.3 A

Conventional thermal current Ith 10 A

Minimum let-through current at 24 Vdc

(For a dry and clean environment) 10 mA for silver contact;

4 mA for gold contacts.

Connections M3 screws

Ab (3-4)

a (1-2)

1^21 Secheron

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UR46-81/82S Installation

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

File: c-UR46-8S_inst_en.fm C-19

C. Installation

C.1 Weight and dimensions

Dimensions

The DIN-ISO 2768-1 coarse tolerances are applied to these dimensions.

04610-S

(1) Type 81 arc chute

(2) Type 82 arc chute

DANGER!

To ensure maximum safety, servicemen and operators must read the A.2 "Safety

precautions" section before starting installation, maintenance and adjustment of

the device or before starting to operate it.

Weight (± 5 kg) UR46-81S UR46-82S

Circuit-breaker (standard, without options):85kg 86 kg

Arc chute:25 kg 34 kg

Total:110 kg 120 kg

320 246

760

4xØ11

69 (1) / 168 (2)

419 (1) / 617.5 (2)238

100

137 40 95

386

437

397(1)

398

784 51

100

40 40160

378

437(2)

R490

4x Ø18

50 25

305020

40 25

4x Ø16

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Installation UR46-81/82S

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

C-20 File: c-UR46-8S_inst_en.fm

C.2 General requirements

Special arrangements must be agreed between the user and Sécheron SA to cover extreme

service conditions such as:

• altitude above 1400 m;

• ambient temperature exceeding + 40°C;

• minimum temperature below - 25°C;

• high average temperature combined with high relative air humidity (> 95%);

• heavy rain, sand storms, etc.

C.3 Delivery check and acceptance

C.3.1 Check

The customer must open the package and visually check:

• the conformity of the delivered devices with the order: correct identification numbers on the

identification plates and correct number of devices;

• for any damage on devices.

C.3.2 Transport damage procedure

If the equipment is damaged, the customer must imperatively report the damage by an official

letter to Sécheron SA within 7 days after receiving the goods. Once this delay has expired, all

transport damages can no longer be covered by Sécheron SA. Sécheron SA will have to charge

the customer for any repair. For the repair procedure, please refer to our website

“www.secheron.com” and click on “Services / RMA”.

C.4 Handling

Circuit-breaker with its arc chute attached: lift it using ropes/slings as shown below.

Arc chute only: manipulate it by hand, or ropes, or straps and a hook. Lift the arc chute using

both lifting handles (1).

04611-S

CAUTION! Risk of crushing.

The high speed circuit-breaker can weight up to 120 kg.

1^21 Secheron

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