Eaton Power Xpert UX 12 User manual

User manual Power Xpert® UX
Power Xpert® UX with W-VACi circuit breaker (up to 24 kV)
Air Insulated Medium-voltage switchgear

Table of contents
Power Xpert® UX with W-VACi circuit breaker 6063308 G01 01 14 July 2011 www.eaton.com
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Table of contents
Power Xpert® UX with W-VACi circuit breaker 6063308 G01 01 14 July 2011 www.eaton.com
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Table of contents
1Introduction 6
1.1 General system description 6
1.1.1 System type 6
1.1.2 System construction 6
1.2 Using the manual 6
1.2.1 Target group 6
1.2.2 Notation guide 6
1.2.3 Structure of the manual 6
1.3 Safety instructions 7
1.3.1 General instructions 7
1.3.2 Safety of the Switchroom 8
1.3.3 What to do in the event of a fire 11
1.4 Product information 12
1.4.1 Product Rating Plate 12
2Product description 13
2.1 The system 13
2.1.1 Panels 13
2.1.2 Circuit Breaker or Contactor unit 13
2.1.3 Circuit Breaker or Contactor Unit Positions 14
2.1.4 Cable connections 14
2.1.5 Voltage transformers 15
2.1.6 Current transformers 15
2.1.7 Auxiliary equipment 15
2.1.8 Earthing 16
2.1.9 Withdrawable units 17
2.1.10 Interlocks 18
2.2 Panel types 18
2.2.1 Circuit-breaker panel 18
2.2.2 Bus-section panel (connecting panel) 19
2.2.3 Incoming panel 20
2.2.4 Outgoing panel 20
2.2.5 Metering panel 20
2.2.6 Contactor panel 20
2.3 Equipment safety 20
2.3.1 Safe operation 20
2.3.2 Safety features 20
2.3.3 Execution of work 21
2.3.4 Safety markings 21
2.4 General technical data 22
2.4.1 Electrical data 22
2.4.2 Environmental conditions 23
2.4.3 Dimensions and weights 23
3System assembly 25
3.1 Environmental requirements 25
3.1.1 Climate 25
3.1.2 Room for extension 25
3.1.3 Floor 25
3.1.4 Floor plan 25
3.1.5 During transport and storage 25
3.2 System transport 27
3.2.1 Delivery inspection 27

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Power Xpert® UX with W-VACi circuit breaker 6063308 G01 01 14 July 2011 www.eaton.com
3.2.2 Instructions for transport 27
3.2.3 Transport in the operating area 28
3.3 System assembly 28
3.3.1 Foundation on site 28
3.3.2 Unpacking the delivery 28
3.3.3 Inspection of the floor 28
3.3.4 Preparations 29
3.3.5 Installation of the switchgear 32
3.4 Busbar coupling 33
3.4.1 Main busbar 33
3.4.2 Earthing busbars 34
3.5 Connection of wiring and cables 35
3.5.1 Connecting a main cable 36
3.5.2 Connection of secondary wiring 36
3.5.3 Connecting the auxiliary cables 37
3.5.4 Inter-panel connection of auxiliary cables 37
4System operation 38
4.1 Operation - General 38
4.1.1 Mechanical operation door open 39
4.1.2 Charging the closing spring 39
4.1.3 Mechanical operation door closed 40
4.1.4 Electrical operation 40
4.2 Unit insertion and withdrawal 41
4.2.1 Standard interlocking 41
4.2.2 Inserting a unit 42
4.2.3 Door interlock mechanism 43
4.2.4 Withdrawing a unit 43
4.2.5 Locking the shutters 44
4.3 Earthing 45
4.3.1 Cable door interlock mechanism 45
4.3.3 Switching on/off the earthing switch 46
4.3.4 Earthing busbar/cable using withdrawable earthing unit 46
4.4 Checks 47
4.4.1 Shutter lifter truck 47
4.4.2 Optional Voltage Detection System VDS 49
5System commisioning and decommisioning 50
5.1 Commissioning 50
5.1.1 Acceptance testing 50
5.1.2 Inspections 50
5.1.3 Handover 50
5.2 Decommissioning 50
5.2.1 Dismantling 50
5.2.2 Disposal 50
6System inspection, maintenance and repair 52
6.1 Logbook 52
6.2 Inspection and maintenance, general 52
6.2.1 Periodic check 52
6.2.2 Maintenance 52
6.3 Fault diagnosis 53
6.3.1 What to do in the event of a fault 53
6.3.2 Troubleshooting table 53

Table of contents
Power Xpert® UX with W-VACi circuit breaker 6063308 G01 01 14 July 2011 www.eaton.com
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7Accessories 55
7.1 List of available accessories 55
7.1.1 Power Xpert® UX 55
7.1.2 Optional 55
8Glossary 56
8.1 Safety and qualification of personnel 56
8.2 Abnormal operating conditions 56
8.3 Equipment and the area around it 57
9Appendix 58
9.1 General 58
9.2 Floor Plan drawings 59

Introduction
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Power Xpert® UX with W-VACi circuit breaker 6063308 G01 01 14 July 2011 www.eaton.com
1 Introduction
1.1 General system description
The Eaton Power Xpert® UX switchgear system is
designed for medium-voltage supply stations such as
main supply stations, distribution sub-stations and
industrial connections. It can also be used in industry and
power plants as motor control centers.
1.1.1 System type
The Eaton Power Xpert®UX system is an air-insulated,
medium voltage switchgear system. It is defined as
‘metal enclosed switchgear’ in accordance with
IEC 62271-200 and classified in the
category LSC2B-PM.
1.1.2 System construction
A Power Xpert® UX panel is constructed of sheet metal
circuit breaker panels, withdrawable vacuum circuit
breakers and withdrawable contactors.
The main busbar system is located at the top of the
panels. It consists of copper bars which may be
supported by insulator depending on rated short-circuit
current. The bars are provided with an insulation layer
over their entire length.
Pressure relief vents at the top of the circuit breaker
panels provide protection against overpressure in any of
the main compartments (busbar, circuit breaker or cable)
that may be caused if an internal arc occurs.
An additional low-voltage compartment (for secondary
equipment) is fitted to a circuit breaker panel
The installation is divided functionally into panels (such
as circuit breaker panels, a busbar section panel, etc.).
The panel function and the rated current of the panel in
question determine the width of the panel.
Options
The installation may be provided with optional equipment
such as busbar insulating bushings, voltage transformers
etc.
The standard installation supplied is a single busbar
model.
For further details, see technical data.
1.2 Using the manual
1.2.1 Target group
The switchgear is designed for use by personnel who are
expert or adequately trained in using switchgear and/or
carrying out electrical operations.
For definitions of these terms, see chapter 8 – Glossary.
1.2.2 Notation guide
This manual uses warning boxes to alert the user to
possible dangers while operating or maintaining the
equipment:
WARNING
Personal (fatal) danger to personnel and
bystanders.
CAUTION
Danger of damage to equipment.
NOTE
Important note for clarification.
REMARK
Useful advice.
1.2.3 Structure of the manual
The manual contains 9 chapters.
Chapters 1 and 2 contain general information on the
system design and construction and general safety
aspects. The information is presented in the form of
descriptive texts, supported by illustrations as necessary.
Illustrations are numbered consecutively for each
chapter, and are captioned if necessary.
Chapters 3 to 7 consist mainly of procedures. These
procedures contain step-by-step descriptions of actions
in the order in which they should be carried out.
Illustrations are on the same page as the relevant step
and have the same number.
WARNING
Never take any action without knowing what
effect it will have.
REMARK
Read through all actions first, using the relevant
figures. Contact Eaton if you do not understand what
you have to do.

Introduction
Power Xpert® UX with W-VACi circuit breaker 6063308 G01 01 14 July 2011 www.eaton.com
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Further information regarding chapters 3 to 7 is given
below.
Chapter 3 – Setting up the system
This chapter contains instructions on transport, assembly
and busbar coupling. It also describes what is required
for the operating area and gives an overview of
connection possibilities.
Chapter 4 - System operation
This chapter is aimed at the operator, who is expected to
operate and monitor the system independently. For that
reason, these activities are described in detail.
Chapter 5 - System commissioning and
decommissioning
Chapter 5.1 sets out the actions required before the
system can be commissioned. These actions should be
carried out in conjunction with Eaton.
Chapter 5.2 deals with decommissioning the system. It
also includes recommendations for the safe disposal of
the system or parts of the system.
Chapter 6 – System inspection, maintenance and
repair
This chapter describes only those operations that may be
carried out by the user.
NOTE
Operations not included in the manual must be
carried out by or under the supervision of Eaton.
Chapter 7 - Accessories
This chapter contains a list of accessories that can be
supplied
Chapter 8 - Glossary
This chapter contains clarifications of specific terms used
in the manual but not explained further.
Chapter 9 – Appendix
This chapter shows the structure of all the documentation
supplied with the system.
1.3 Safety instructions
Read this user manual carefully before commissioning
the switchgear. Make sure that you have read and
understood all safety warnings and instructions.
1.3.1 General instructions
Eaton has done its utmost to inform user as accurately
and as fully as possible concerning any dangers involved
in using the system. Users are responsible for
supervising implementation of the instructions contained
in this manual.
Personnel
The user must make sure that personnel are qualified to
carry out the task.
Safety of bystanders
Access to the equipment is to be limited to those directly
involved in operating or maintaining it.
Other persons must not remain in the vicinity of the
equipment.
During switching operations, no personnel must be
behind or above the installation.
Safety plan
It may be necessary to draw up a safety plan.
Comprehensive advice on this should be obtained from
the relevant authorities (fire brigade, local authorities,
occupational health & safety, company safety
department, first aid service etc.).
Safety standards
Power Xpert® UX switchgear complies with the following
standards:
●
IEC 62271-200:
AC metal-enclosed switchgear
and controlgear for rated voltages
above 1 kV and up to and
including 52 kV;
●
IEC 60529:
Degrees of protection provided
by enclosures (IP code);
●
IEC 62271-1:
General conditions for high
voltage switchgear and control
gear standards.

Introduction
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Power Xpert® UX with W-VACi circuit breaker 6063308 G01 01 14 July 2011 www.eaton.com
The components used comply with standards:
●
IEC 62271-100:
High-voltage alternating current
circuit breakers
●
IEC 62271-102:
Alternating current
disconnectors and earthing
switches
●
IEC 60044-1:
Instrument transformers – part
1: Current transformers
●
IEC 60044-2:
Instrument transformers – part
2: Voltage transformers
●
IEC 60265:
High-voltage switches – part 1:
Switches for rated voltages
above 1 kV and less than 52 kV
●
IEC 60282-1:
High-voltage fuses – part 1:
Current-limiting fuses
●
IEC 62271-105:
High-voltage alternating current
switch fuse combinations
●
IEC 60470:
High-voltage alternating current
contactors and contactor-based
motor-starters.
Eaton Power Xpert® switchgear can be used in areas
under normal conditions as described in IEC 62271-1,
Chapter 2.1.
1.3.2 Safety of the Switchroom
The installation and the switchroom must comply with all
applicable local safety regulations. The switchroom is
the room in which the switchgear has been set up and
must meet at least the following requirements:
- Clear space
NOTE
Operations not included in the manual must be
carried out by or under the supervision of Eaton.
Front Access:
If the switchgear is arranged for Front cable access then
rear or side clear space of at least 0.1 m is required.
However Eaton recommends at least 1 m at one end of
the switchgear and at least 0.5 m to the rear wall are left
to allow for ease of installation.
Rear Access:
If the switchgear is arranged for Rear cable access then
a clear space of 0.8 m is required to the rear wall of the
switchroom, at least 0.1 m space at one end of the
switchboard and 0.5 m space at the other end of the
switchboard to allow for adequate escape routes, and if
switchboard length is more than 10 m, then at least 0.5 m
clear space of both sides is required to allow for
adequate escape routes.
All installations:
Eaton recommends a dimension of at least 1.5 m at the
front of the switchgear to allow for ease of operation,
removal of vacuum circuit breaker from the panel and
adequate escape route. In the case of facing installations
aisle width of 2.5 m is required between the installations.

Introduction
Power Xpert® UX with W-VACi circuit breaker 6063308 G01 01 14 July 2011 www.eaton.com
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Clear space for Power Xpert® UX switchgear with front
and rear access
Clear space for Power Xpert® UX switchgear with
front access
Fig. 1-1 Clear space for 12 kV and 17.5 kV panel

Introduction
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Power Xpert® UX with W-VACi circuit breaker 6063308 G01 01 14 July 2011 www.eaton.com
Clear space for Power Xpert® UX switchgear with front
and rear access
Clear space for Power Xpert® UX switchgear with
front access
Fig. 1-2 Clear space for 24 kV panel