12kV ET1 Removable AC Metal-enclosed Switchgear - 电子书在线预览、各类电子书在线制作-云展网平台

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12kV ET1

Removable AC Metal-enclosed Switchgear

Medium Voltage Switchgear System

Automotive

Aerospace

Electrical Truck

Hydraulics

Automotive

Aerospace

Electrical Truck

Hydraulics

Powering business worldwide

Next generation

transportation

Eaton is driving the

development of new

technologies – from hybrid

drivetrains and emission control

systems to advanced engine

components – that reduce fuel

consumption and emissions in

trucks and cars.

Higher expectations We continue to expand our

aerospace solutions and

services to meet the needs of

new aviation platforms,

including the high-flying light jet

and very light jet markets.

Building on our strengths

Our hydraulics business

combines localised service and

support with an innovative

portfolio of fluid power

solutions to answer the needs

of global infrastructure projects,

including locks, canals and

dams.

Powering Greener Buildings

and Businesses

Eaton’s Electrical Group is a

leading provider of power

quality, distribution and control

solutions that increase energy

efficiency and improve power

quality, safety and reliability.

Our solutions offer a growing

portfolio of “green” products

and services, such as energy

audits and real-time energy

consumption monitoring.

Eaton’s Uninterruptible Power

Supplies (UPS), variable-speed

drives and lighting controls help

conserve energy and increase

efficiency.

Eaton delivers the power inside hundreds of products that are answering the demands of today’s fast changing world. We help our customers worldwide manage the power they need for buildings, aircraft, trucks, cars, machinery and entire businesses. And we do it in a way that consumes fewer resources.

MV switchgear technology

is in our DNA

Eaton’s range of

SF6 free switchgear

for Medium Voltage

Eaton Corporation is a worldwide leader in the

design, manufacture, and sale of safe, reliable

and high-performance medium voltage power

distribution equipment in accordance with IEC,

ANSI and GB / DL standards

Complete Global Medium Voltage Switchgear Solutions

Eaton, a premier leader in designing and manufacturing power

distribution and protection equipment in the electrical industry,

offers a comprehensive range of medium voltage (MV) solutions

to meet the needs of virtually every application. From products

that feature cutting-edge design that allow for easy access,

maintenance and space savings, to arc-resistant products that

enhance safety, Eaton’s medium voltage solutions provide a

variety of products for every need. Additionally, Eaton’s global

service network provides maximum customer support in all

regions of the world.

As one of the few completely vertically integrated and diversified

industrial manufacturers in the world, Eaton designs not only MV

assemblies, but also the key components that comprise the MV

solutions – from steel housing and circuitbreaker compartments

to vacuum interrupters, circuit breakers, bus systems and fuses.

Eaton’s MV heritage, strengthened by acquisitions such as

Westinghouse DCBU, Cutler Hammer, MEM and Holec, has

resulted in breakthrough MV technologies and numerous

international patents over the years.

Part of Eaton’s complete electrical PowerChain Solutions

– which help businesses minimize risks while realizing greater

reliability, cost efficiencies, capital utilization and safety –

Eaton’s medium voltage equipment meets all applicable

standards and certifications such as IEC, NEMA / ANSI, GB / DL,

UL, IEEE, KEMA and CSA.

When it comes to medium voltage solutions, you can trust the

one name with a long history of proven performance: Eaton.

High reliability

• Compact components and optimized

electrical field structure guarantee the

performance of the overall insulation

system

• The epoxy encapsulated circuit breaker and

completely insulated and enveloped

busbar system enhance service reliability

• Up to 30,000 cycles long-life spring

mechanism requires minimal

maintenance

• The high-performance circuit breaker can

accommodate up to 50 full-capacity

circuit-breaking duty

• High-quality brand interrupters with a

guaranteed life span of 30 years

Safety for equipment and

person

• Metal-clad fully enclosed structure prevents

invasion by pollutants and tiny living

things.

• Operation only on completely closed-door

condition protects the personal safety of

operators.

• Reliable and comprehensive interlocking

device effectively prevents against

wrongful operation for enhanced safety

• The emergency opening device in the front

door makes emergency tripping of VCB in

closed-door state.

• The quick making earthing switch is used for

grounding on the cable side to ensure

safety during maintenance.

Environmentally friendly

and low energy

consumption

• No SF6 gas is used for the circuit breaker

and insulation (green and environmentally

friendly)

• Powerful maintenance-free design with

minimal parts

• Powerful maintenance-free design with

minimal parts

• Highly efficient and energy-saving assembly

process to reduce energy consumption

during the manufacturing process

• Effective utilization of materials

• The advanced vacuum circuit breaker

contact design helps prevent against the

heating point to minimize electrode

corrosion and to extend the product life.

• The number of electrical contact or

interconnection points inside the system is

kept at a minimum for lowest energy

consumption during operation.

• To discontinue use, no special or required

processing procedure is needed.

Easy operation and wide

adaptability

• After opening the rear door of switchgear,

the cables and current transformers can

be installed

• Common electromagnetic transformer is

used

• Cable connectors of various common

specifications to be used

• Suitable for multiple cables connection of

various common specifications (up to 6

cables per phase)

• Panel coupling is simplified in site: no

special tools are required and system can

be extended on both sides.

• Mimic diagram of primary circuit in front

door and the components status are

visible for users

• Maintenance may be accommodated for

front or rear access.

12kV ET1

Removable AC Metal-enclosed Switchgear

Overview

12kV ET1 is the indoor metal-clad air insulated medium voltage switchgear. Benefit from

Eaton’s the new vacuum technology and the mature epoxy-resin insulation technology, it is

approved comprehensively through type testing and qualification. The product is mainly

applied in the power plants, transformer stations, mining enterprises and high-rise

buildings with optimized safety, reliability, cost-effectiveness, and high performance. The

550mm width compact solution better suits the application in projects with restricted spaces

such as the commercial real estate, data centers and retrofit.

ET1-12 switchgear comprises a complete range from 1250A up to 4000 A current. The main

busbar current can reach 4000A. Adopting the vacuum interrupting technology and the

composite insulation technology, the switchgear is the best of its kind in the medium voltage

field to replace the environmentally harmful SF6 gas insulation equipment.

It is also produced with fully recyclable materials ensuring that at the end of its life the

product can be safely and efficiently recycled – providing a wholly sustainable solution to

medium voltage switchgea applications.

Applications

• Infrastructure

• Data centers

• Commercial buildings

• Industries and corporations

• Airports and hospitals

Applied standards

• GB3906

• GB/T11022

• DL402

• DL404

• DL593

• IEC62271

Basic design

ET1-12 has a modularized structure which consists of the front and the back modules. The module is riveted internally and is known for the outstanding switchgear strength and precision.

The interfaces available on both sides of the panel for conveniently expansion of the existing system.

Low voltage busbar

channel

On top of the panel there’s an independent

low voltage busbar access that may be

opened separately to connect low voltage

busbars of adjacent panels which line up.

Pressure relief channel

For the three high voltage compartments

on top of the panel, there are the

respective pressure relief cover plates to

help with the emissions of gases generated

during internal arcing from above.

Removable AC Metal-enclosed Switchgear

Superior safety, reliability and performance

The low voltage compartment consists of

separate grounded metal partitions. Internally

there are the grid board/terminal

block/secondary grounding bar to offer

sufficient room for secondary control and

protection equipment.

The circuit-breaker compartment is made of

grounded metal partition boards. On top of it

is the separate pressure relief channel.

Inside the circuit-breaker compartment there

are the installed aluminum alloy guide rail and

the exclusive grounding conductor to ensure

precise coordination between the circuit

breaker truck and the primary contacts and

reliable grounding during racking-in from the

test to service position.

With the compartment door fully closed, the

circuit breaker can be closed or opened via

the manual button or the operation rod in

front of the door.

The circuit breaker truck is mechanically

interlocked with the door plate. Only when the

circuit breaker is tripped and returns to the

test position can the door be opened.

The earthed metal shutters on the busbar and

cable sides can be separately operated. The

shutters will automatically open or close as

the truck moves in or out.

When the circuit breaker is in a test or

disconnected position, the shutters close

automatically to prevent against approaching

or contacting with charged conductors.

When the circuit breaker truck is moved out of

the switchgear, a padlock may be added with

the shutter closed to ensure that the service

personnel do not contact high voltage charged

conductors.

The switchgear is configured with the standard

epoxy resin casting block current transformer.

The earthing switch is installed inside the

cable compartment in the center of the

cabinet. Opening or closing is manipulated

from the front side of the switchgear. The

status of the earthing switch can be observed

directly through the window, and may be

displayed on the low voltage door.

There is a mechanical interlock between the

earthing switch and the circuit breaker or the

contactor truck. Only when the truck is in the

test/disconnected position can the earthing

switch be turned on or off.

There is also a mechanical interlock between

the earthing switch and the cable

compartment door to ensure that the cable

compartment door can only be opened after

the earthing switch is turned to off.

Each switchgear is configured with a

pass-through main earthing busbar. A

rectangular copper bar with a suitable cross

section is selected according to the

short-circuit capacity of the system to ensure

simple and effective grounding connection

between switchgear and the grounding

network at the substation.

The grounding conductors inside the

switchgear are distributed inside the cabinet

vertically and horizontally and are connected to

the earthing switch and the main earthing

busbar. The overall grounding system has been

validated through the short circuit withstand

test.

Inside the cable compartment it is possible to

install the current transformer, earthing

switch, and surge arrester. The cable

compartment and the switchgear are designed

to accommodate the various ways of incomer

and feeder, such as bottom cable in/out, top

cable in/out or top bus bar in/out.

The cables can be connected in parallel for at

least 2 x 400 mm2 three-core cables at the

same time. The terminal height of cable is not

below 750 mm, which makes connection

convenient.

The busbar compartments are separated from

one another through grounded metal partition

boards and bushings. There are separate

pressure relief channels. The whole busbar

system is fully insulated to guarantee the

insulation level and to minimize the possibility

of arc fault. The epoxy resin insulators with

large creepage distance (≥240 mm) are used

to support the busbar. The bushing is installed

on the stainless-steel plate in order to reduce

heat generated by the eddy currents from the

busbar.

Low voltage compartment Busbar compartment Circuit breaker compartment Shutters

Current transformer Earthing switch Grounding conductor Cable compartment

3 4 5 6

7 8 9 10

Control, protection and operating interface

Low voltage compartment

door

All controls and displays are installed on the

door to facilitate operation.

On the door, various types of meters and

switches may be installed as required, such

as:

• Circuit breaker closing/opening switch

• Circuit breaker status lamp

• Ammeter/Voltmeter and the phase

selection switch

Eaton brand protection relay may be used

as the standard option; customers may also

choose protection relays from other

suppliers.

Mimic diagram

There is a clear circuit mimic diagram on the

door of each panel.

Ammeter and the phase

selection switch

Voltage Indicator

The optional three-phase voltage detection

and indicator are available for each panel.

This voltage indicator is driven by the

capacitor voltage divider inside the insulator

and is connected to the conductor on the

cable side. Operators can see directly if the

connected cable is charged.

Truck position indicator

Shows that the circuit breaker truck is in the

connected/service or test/disconnected

position.

Circuit breaker status

indicator and

closing/opening switch

This local circuit breaker opening/closing

switch can be used to manipulate the

circuit breaker; the closing/opening state is

shown on the door.

The optional LED indicates the “charged”

state of the spring mechanism.

Earthing switch status

indicator

Shows that the earthing switch is in the

opened/closed state.

Viewing windows

The circuit breaker compartment door

viewing window provides visual indication

of the position of the circuit breaker

indicating:

• The status of the breaker

• The status of the spring charged

mechanism

The cable compartment door viewing

window allows visual indication of:

• The status of the earthing switch

• Inspection of the cable connections

Circuit breaker propelling

mechanism operation

hole

Turn the knob and open the cover plate

over the operation hole to insert the

handle to racking in/out the truck.

2 Protection relay

Clear operation panel to facilitate user operation

Safety first design

Eaton applied its experiences and knowledge accumulated over the years in the resin insulation technology, vacuum technology, arc

interruption and electrical field control technology to the design and development of products, and has accordingly ensured very high

safety and reliability in operation throughout the life span of its equipment. The switchgear is known for the many reliable functional

designs to guarantee continuity in power supply and also to protect the safety of operators.

Preventing against internal

arc fault

The solid encapsulated monopolar

structure of each phase and the fully

insulated busbar system guarantee

insulation and encapsulation of the overall

loop high voltage conductors and keep

them isolated from one another to

avoid/minimize possible internal arc fault to

the greatest extent possible.

Internal arc class:The greatest

underlying threat possibly facing operators

is the generation of arc inside the

switchgear. The metal-clad design of ET1

along with its robust structure enabled its

three major compartments to successfully

pass the internal arc fault test and meet the

GB3906 requirements. The rated value of

IAC can reach 40kA-1s.

According to the standard defined

protection level of switchgear upon internal

arc fault, the ET1 range’s approval upon

independent third-party testing proves that

the IAC class it can offer is AFLR.

A = Protection for personnel (authorized

personnel only)

F = Protection at the Front of the switchgear

L = Protection at the Lateral (sides) of the

switchgear

R = Protection at the Rear of the switchgear

Accessibility of

compartments

To guarantee the safety of personnel, access

control is enforced for each charged

compartment of the switchgear as required

by standards:

• Busbar compartment:

Tool-based/non-accessible

• Circuit breaker compartment： Interlock

controlled

• Cable compartment: Tool-based or

optional interlock control

Partition classification

ET1 employs only earthed metal partitions

and therefore has the highest level of

partition classification of PM.

ET1 switchgear is equipped with automatic

earthed metal shutters. Individually

operated shutters for both the Line

(busbar) and Load (cable) connections can

be padlocked in the closed position. When

the vacuum circuit breaker is in the test or

the disconnect positions, the shutters will

automatically close to prevent accidental

contact with any live parts.

For testing purposes, special shutter fixtures

are used to maintain the shutters in the

open position. Colour coded and labelled

‘Busbar’ and ‘Cable’, the shutters are easily

identified as Open or Closed.

Basic protection against

invasion by foreign matters

The standard external protection class of

the switchgear design is IP4X. IP41 is an

optional configuration. The internal

protection class is IP2X. The partition design

of the protection class prevents against

invasion by foreign matters and reduces the

risk of any accident as a result of contact

with charged components.

Safety interlocks

For personnel safety ET1 is designed with a

series of interlocks to prevent

fundamentally against dangerous situations

and wrongful operation that might give rise

to serious consequences and accordingly

protect the operators and the switchgear.

Basic interlocks

• Only when the circuit breaker

compartment door is closed can the

circuit breaker be moved in or out. Only

when the circuit breaker is in the

testing/isolated position can the circuit

breaker compartment door be opened.

• Only when the circuit breaker is in the

opened state, the truck may move from

the testing/isolated position to the

working position.(mechanical interlock).

• Only when the truck is in a complete

testing or working position can the circuit

breaker be closed (mechanical interlock).

When the truck is in the testing or

working position but there is no

controlled voltage, the circuit breaker

cannot be closed; one can only open it

manually (mechanical electrical

interlock).

• When the truck is in the working position,

the control line plug is locked and hence

cannot be pulled out.

• When the earthing switch is off, the truck

cannot move from the testing/isolated

position to the working position; when

the truck is in the working position, the

earthing switch cannot be turned

off(mechanical interlock).

• When and only when the earthing switch

is off, the rear door of the cable

compartment may be opened

(mechanical interlock). When the rear

door is not closed, it is impossible to turn

on the earthing switch.

Additional interlocks

• The additional electrical or mechanical

lock realizes interlocking between the

busbar grounding and the upstream

incoming line/downstream outgoing

line.

• The additional interlock may be installed

onto the truck and/or the earthing

switch operation mechanism, such as

the latching electromagnet.

• Once the truck moves away, the shutter

may be locked with a padlock.

• The operation hole of the earthing switch

may be locked by padlock.

• Additional electromagnetic lock may be

installed to the door of the cable

compartment of the switchgear.

Remote operation

In order to realize further safety

requirements, the switchgear may be

configured with complete remote operation

features. The VCB truck and Earthing switch

can be operated via motor no need to

access the switch room.

Minimal maintenance and high reliability

Highest class of operational

continuity

The class of loss of service continuity of ET1

is LSC2B.

The LSC2B class indicates that system

operation can reach maximum continuity

When the main switch device is being

serviced, there is no need to interrupt

corresponding cable connection or the

main busbar. Therefore, in the LSC2B

switchgear, there have to be at least three

compartments to exercise different

functions:

• 1 for the main switch device

• 1 for components connected to one side

of the main switch device, such as the

feeder loop

• 1 for components connected to the other

side of the main switch device, such as

the busbar

When the circuit breaker compartment is

opened, the cable and the busbar are still

in a charged state and the switchgear now

can be classified as LSC2B.

Reliable and maintenance-free

vacuum switch technology

Solid insulation combining

resin pouring technology

Fully insulated and fully

encapsulated busbar system

Epoxy resin is a high-quality insulating

material. With more than 50 years of

experience in designing and manufacturing

pouring resin parts, Eaton was able to

design exclusive parts to help optimize

distribution of the electrical field with a

robust structure and sufficient heat sinking

performance.

• High mechanical strength to enhance

monopolar durability and mechanical

life span

• Avoid impacts from climate conditions

and humidity

• Reduce mechanical impacts and

vibration

• High heat conductivity

• High resistivity and creepage distance for

enhanced insulation and compact

design

The main busbar penetrating through the

whole switchgear is completely insulated

and isolation between adjacent cabinets is

guaranteed by the main busbar

compartment. The long-term reliable

insulation performance of the main busbar

system is accordingly guaranteed. It also

helps prevent against spreading between

adjacent cabinets in case of failure.

Withdrawable truck design

Main primary components such as the

voltage transformer, fuse and lightning

arrestor can all be installed on the

withdrawable truck to facilitate safe

operation while the main busbar is charged

and also maintenance.

The reliability and advantages of vacuum

switches in the medium voltage field are

without a doubt. Eaton’s vacuum switch

technology has brought about

advantageous circuit breakers and

contactors for their high performance, long

life span, and low energy consumption.

• No servicing is required during the up to

30-year life span of the vacuum

interrupter.

• Long operating life span: The circuit

breaker can work up to 30,000 times

and contactors up to 1,000,000 times.

• Contactor wear is minimal, and

mechanical adjustment is not required

throughout the operation cycle.

Highly flexible application

Eaton understands the complexity and variability of actual application and the value of land, and offers various flexible

design solutions in order to answer the needs of application to the maximum extent possible.

Adaptation to different

climates and environments

• 3500m high-altitude

• Addition of a heater to prevent against

condensing risk in a humid

environment

• IP41/IP42 cover protection available

• Vibration and tilt test to satisfy special

environmental needs

• Galvanized steel sheet or epoxy powder

painted cover for enhanced protection

against impacts from salty fog in coastal

environments

Optional design solutions

and configuration

• 7.2kV or 12kV fuse - vacuum contactor

used to control and protect the load of

the electric motor, capacitor or

transformer

• VCB cable in/cable out solution for

upstream incomer of transformer, with

the top or bottom entry/out

• Option for standard or busbar casing

current transformer

• Suitable for cable connectors of various

common specifications

• Concurrent connection with multiple

cables (up to 6 cables per phase)

• Top entry of primary/secondary cable

• Can accommodate access by cables or

the busbar and also mixed access by

cables and the busbar

• Fixed or withdraw-able installed voltage

transformer

• Busduct between different bus sections

or cabinets

• Installed against the wall or back to back

Compact 550 mm solutions

of a complete series

ET1-12 550 products inherited the

strengths of the ET1 and the E-VAC series of

products and further realized the compact

design of switchgear to better suit limited

space such as commercial real estate and

field modification. The products have been

comprehensively qualified through type

testing with optimized user safety,

reliability, cost-effectiveness and high

performance.

• New compact design with only 550mm

width to save installation room

• Small size VCB as part of E-VAC series,

inherited Eaton’s high-quality vacuum

interrupter and solid encapsulation

workmanship

• Same user interface and operation with

the ET1 switchgear; free configuration

for different rating feeders to form one

system is possible

Main components

SL series of contactors

The fused contactor truck may be adopted for motor start and capacitor bank.

Green and environmentally friendly vacuum interrupter

The rated current of contactor up to 400A

The maximum breaking current up to 7.2kV 8.5 kA/12kV 4kA

Up to 50 kA HRC fuse

The maximum rated current of the fused-contactor up to 7.2kV 250A/12kV 200A

The electronic tripper controller allowed to select the control voltage and trip time on

site

Optional mechanical interlock

Electrical life span up to 300,000 times

Mechanical operation is possible up to 12kV, 1,000,000/7.2kV, 2,500,000 times, without

service or adjustment

Features

●

E-VAC vacuum circuit breaker

The epoxy resin encapsulated pole unit has excellent insulation performance and can

adapt to rough environments

Use of Eaton’s latest vacuum interrupter that has a long life span, low wear and low chop

current

Mature spring mechanism with steady performance, a long life span, and minimal

maintenance

Excellent performance on switching resistance, inductive and capacitive loads with a very

low restroke rate

AC/DC control power supply

The spring mechanism realizes automatic mechanical and electrical tripping

Available auxiliary contacts to display the status of the spring charged or not

Mechanical indicator shows the closed/opened state

The auxiliary contact shows the closed/opened state

The auxiliary contact shows the service/test position of VCB

The auxiliary contact available for remote display

Mechanical interlock to ensure door-closed operation

The mechanical interlock ensures the VCB truck racking in or out only when tripped

Features

●

Busbar

The busbar system consists of a highly-conductive copper row, with a cross section being a

standard rounded rectangle.

Respective busbar compartments are separated by single partition boards

Fully insulated main busbar penetrates the whole switchgear

The ventilation of the busbar compartment is directly linked to the pressure relief

channel

For supporting the busbar, the large creepage distance insulators are used

The pre-drilled copper makes field connection easy

The rated current of the busbar system reaches 4000A and short-circuit current reaches

50 kA-4s

Features

●

Earthing switch

Both the incomer and feeder can be configured with the cable side earthing switch. There is

a mechanical interlock between the earthing switch and the circuit breaker. Only when the

circuit breaker is in the opened state and has moved to the “isolated/testing” position can

the earthing switch be operated.

The quick earthing switch passed the fault test

Front access operation easily with low torque via the bevel gear

Auxiliary contacts for open/closed positions

Mechanical indicator for open/closed positions

Mechanically and/or electrically interlocked with VCB to ensure safety of operators

Features

●

Current/voltage transformer

Configured with smaller epoxy resin molded current transformer

The external/built-in fuses to protect the transformer

The type of voltage transformer meets the demand of the compact switchgear

Features

●

Main components

Quality and service warranty

Certifications

• All products have been certified through

type-testing performed at a third-party

test station

• Related product high-tech certifications

Factory Acceptance Test

(FAT)

• The FAT is performed combining test

items required by customers

• Field facilities and simulated field

environment, testing and measuring

test equipment and complete

documentation are provided as

required

• Customer engineers take part in the

whole process as witnesses and sign

off for confirmation

Ex-work inspection

• Strict ex-work inspections are performed

on each vacuum interrupter, circuit

breaker and switch equipment. Upon

completion of the overall installation,

thorough appearance checks and

mechanical functional and electrical

tests need to be performed.

• Before being released from the factory,

circuit breakers go through standard

switchgear coordination tests to ensure

product interchangeability and

universality.

• Before being released from the factory,

circuit breakers go through the run-in

test for mechanical operation to ensure

steadiness of the performance.

• The ex-work inspection data of all

products are archived and traceable.

Quality control

• The R&D process is managed through Prolaunch

• The manufacturing facilities follow the globally consistent Eaton quality,

environment, and safety system (EQS&EHS) ISO14001 / OHSAS18001

certified

• Both the switchgear and the circuit breaker are tooled to ensure

consistency in dimensions

• Quality test from raw material to finished product

• Automatic three-axis imaging test

• X-ray testing

• Loop resistance test

• Switchgear mechanical property test

• Pressure tolerance and local release test

• Mechanical and electrical test

Technical Data

System

Rated voltage

Busbar system

Vacuum Circuit breaker

SL contactors

Enclosure

kA/s

times

kA/s

times

75*

1250;1600;2000;2500;

3150; 4000

630;1250;1600;2000;

2500;3150;4000(FC)*

25;31.5; 40; 50/4

63; 80; 100; 125

E-VAC

630; 1250; 1600; 2000;

2500; 3150; 4000(FC)

25; 31.5; 40; 50

63;80;100;125

25; 31.5; 40;50/4

30,000/20,000/10,000

RAL7035

*BIL 95kV can be meet if

required;

*Add cooling fan while

rated current up to 4000A.

ET1-12

1250;1600;2000;2500;

3150; 4000

630;1250

25;31.5/4

63;80

E-VAC

630;1250

25; 31.5

63;80

25;31.5/4

30,000

ET1-12 550

7.2; 12

32; 42

60; 75

1250;1600;2000;2500;

3150; 4000

Maximum 200 (depending on

the fuse)

4; 6/4

10; 15

400

8.5; 4

10.4

6/1; 6/4

300,000

1,000,000**

*The short-circuit breaking

current of F-C depend on fuse

with max. 50kA.

**The mechanical life bases

on electrical latch contactor;

The mechanical latch should

be replaced every 250,000

times.

ET1 (F-C)

Rated Power frequency withstand

voltage (1 min)

Main busbar rated current

Branch busbar rated current

Short time withstand current

Rated peak withstand current (peak

value)

Model No.

Rated current

Rated short-circuit breaking current

Rated short-circuit making current (peak

value)

Short time withstand current

Rated current

Rated breaking current

Rated short-circuit making current (peak

value)

Rated short-time withstand current

Electrical life (AC3, AC4)

Mechanical life

Degree of protection

Partition class

Standard color

Withstand current

Mechanical life

Rated lightning impulse withstand

voltage (BIL)

Rated frequency

IP4X (IP2X for internal partition)

Main dimensions

7.2/12kV Contactor

400A F-C

12kV 550 VCB panel

630A

1250A

12kV panel

630A

1250A

1600

1600/2000A

2500A

3150A

4000A

Basic solution Width W (mm) Height H1 (mm) Height H2 (mm) Depth D1 (mm)

600

550

800

1000

2200

2325

1500

Depth D2 (mm)

1570

Reference weight (kG)

750

780

800

850

900

1000

1200

1280

1450

25kA

25/31.5kA

40kA

50kA

31.5/40kA

40/50kA

31.5/40/50kA

50kA

31.5/40/50kA

40/50kA

Basic solution and configuration

Vacuum circuit-breaker ● 1 ● 1 ● 1

Vacuum contactor ● 1

Disconnect truck

VT & Arrestor truck ● 1

VT truck ○ 0 or 1 ○ 0 or 1 ○ 0 or 1

Arrestor truck ○ 0 or 1

Metering truck

Fuse truck

Current transformer ● 3 or 2 ● 3 or 2 ● 3 or 2 ● 3 or 2

Voltage transformer ○ 1~3 ● 1~3 ● 2~3

Surge arrestor ○ 0 or 3 ○ 0 or 3 ○ 0 or 3 ○ 0 or 3 ● 3

Earthing switch ○ 0 or 1 ○ 0 or 1 ○ 0 or 1

HRC fuse ● 3

PT protection fuse ○ 2 or 3 ○ 2 or 3 ● 3

Ring type CT ○ 0 or 1 ○ 0 or 1 ○ 0 or 1

Voltage Indicator ● 1~2 ● 1~2 ● 1~2 ● 1~2 ● 1~2

Transformer

Protection relay ○ ○ ○ ○ ○

Meter ○ ○ ○ ○

Bottom cable entry

Top cable entry

Top busbar entry

Rating

Rated current (A)

Width (mm)

Depth D2 (mm)

Note: ● Required ○ Optional —— Not available

●

630~4000

550/800(630~1250A)

800(1600~2000A)

1000(2500~4000A)

1500

○

●

○

630~4000

550/800(630~1250A)

800(1600~2000A)

1000(2500~4000A)

○

Dimensions

●

○

550/800(630~1250A)

800(1600~2000A)

1000(2500~4000A)

1500 (Bottom rear cable in/out)

1650(Top rear cable/busbar

in/out)

1500 (Bottom rear cable in/out)

1650(Top rear cable/busbar

in/out)

1500 (Bottom rear cable in/out)

1650(Top rear cable/busbar

in/out)

630~4000

Entry

○

Primary components

F-C Feeder

LV components

VCB Incomer Top entry VCB Incomer VCB Feeder Busbar VT

○

<=3A

550 (for withdrawable VTs only;

VT's parameter to be confirmed by

Eaton due to size limitations)

800/1000 (both VTs and surge

arrestor can be installed in truck)

●

○

<=200A

600

1500

Basic solution and configuration (continued)

Vacuum circuit-breaker ● 1

Vacuum contactor

Disconnect truck ● 1

VT & Arrestor truck ●

VT truck ○ 0 or 1

Arrestor truck ○

Metering truck ○ 0 or 1

Fuse truck ● 1

Current transformer ● 3 or 2 ● 3 or 2 ● 3 or 2

Voltage transformer ● 2~3

Surge arrestor ○ 0 or 3 ● 3

Earthing switch

HRC fuse ● 3

PT protection fuse ● 3

Ring type CT

Voltage Indicator ● 1~2 ● 1~2 ● 0~1 ○ 0~1

Transformer ● 1

Protection relay ○ ○

Meter ○ ○ ○

Bottom cable entry

Top cable entry

Top busbar entry

Rated current (A)

Width (mm)

Depth D2 (mm)

630~4000

550/800(630~1250A)

800(1600~2000A)

1000(2500~4000A)

1500 1500

550 (up to 1250A; Fixed install

Surge arrestor; VT's parameter to be

confirmed by Eaton due to size

limitations )

800 (630~2000A)

1000 (2500~4000A)

800 (for transformer up to 50kVA)

1500

Transformer

630~4000 <=3A

550/800(630~1250A)

800(1600~2000A)

1000(2500~4000A)

1500

Bus section Bus riser Metering

630~4000

Rating Dimensions Entry Primary components LV components

General requirements for the installation of switchgear

The location and passageway available for the installation of the switchgear should meet applicable requirements.

The installation foundation for the switchgear usually requires two concrete pouring efforts. The first one is meant to install embedded parts of the switchgear and pave the underlying channel

steel. The second concrete pouring effort is for the supplementary level on the ground; the general height is 60 mm. The height of the concrete should be below that of the surface of the channel

steel by 3 to 6 mm when the supplementary level of concrete is poured.

The patterns of primary and secondary cable grooves of the switchgear depend on the location and construction conditions of the switchgear to be installed.

The difference per meter on the surface level of the installation foundation of switchgear may not be greater than 1 mm. The difference over the whole length may not exceed 3 mm.

The switchgear is delivered to a specific location according to engineering needs and as shown in the drawings. For a relatively long row of switchgear (with more than 10 units), it is advised to

begin with the center while combining the units.

There should be suitable transport tools in the field of installation, such as cranes and forklifts; rollers and crowbars are strictly prohibited.

During installation, the circuit breaker handcart should be removed from inside the switchgear and be placed in another place for proper storage first.

During installation, first calibrate the first unit or ensure that horizontal and vertical requirements are met from the first connecting surface.

The unevenness of switchgear, once installed, may not exceed 2 mm.

Once the first unit is calibrated, install the other units. Pay attention to the side holes and the installed units.

Spare components and parts and accessories

The accessories of switchgear generally include:

• VCB charging handle

• Opening/closing operating pin

• Racking handle

• Earthing switch operating handle

• Door locking handle

• Trolley

• Specialized tools

Spare components and parts generally include:

• PT protection high-voltage fuse

• Opening coil

• Closing coil

• Voltage Indicator Display

Auxiliary switch

• Indicator

• Transfer switch

• Electromagnetic lock

The list of spare components and parts is eventually based on customer requirements and

decided mutually between the supplier and the party with demand.

Ordering information

• It is required to provide the following information when placing an order:

• System wiring diagram, primary solution layout and floor plan

• Basic parameters, including rated voltage, rated current, circuit breaker opening/closing

current and control power voltage

• Line access approach and line access cable specification and quantity

• Special requirements for the element model number, specification and quantity (if any)

• For special user environments or requirements, please contact Eaton first.

Included documents

• Product Qualification Certificate

• Product Ex-work Inspection Report

• Packing List

• Installation and Operation Instructions

• List of Included Spare Components and Parts and Accessories

• Secondary wiring diagram

• Other relevant materials required by the customer

ET1 installation foundation illustration

ET1 floor plan

Front

800*1650 550*1500

Front

800*1500

Front

35 90 210 35

1650

12-14X24

630

800

385 780

693

25 643 50

300

530

1106

419

90 210 35 35

1500

180

385 780

380

550

12-14X24

280 1135

643 50

693

90 210 35 35

1500

180

385 780

630

800

12-14X24

530 1135

643 50

693

1500 deep switchgear installation foundation illustration

Pouring of concrete

Beam

Cabinet rear Cabinet front

[8-channel steel 1~3mm

650

250 95 250

1500

Foundation and floor plan

Printed in China

CHICA2020001A_EN(07-2028)

Eaton Corporation

Asia Pacific Headquarter

No.3, Lane 280, Linhong Road,

Changning District,

Shanghai 200335

www.eaton.com.cn/electrical

Eaton is a registered trademark

of Eaton Corporation.

All trademarks are property of their

respective owners.

Eaton is an intelligent power management company dedicated to

protecting the environment and improving the quality of life for

people everywhere. We make products for the data center, utility,

industrial, commercial and institutional, machine building, residential,

aerospace and mobility markets. We are guided by our commitment

to do business right, to operate sustainably and to help our customers manage power ─ today and well into the future. By capitalizing

on the global growth trends of electrification and digitalization, we’re

helping to solve the world’s most urgent power management

challenges and building a more sustainable society for people today

and generations to come.

Founded in 1911, Eaton has continuously evolved to meet the changing and expanding needs of our stakeholders. With revenues of $27.4

billion in 2025, the company serves customers in 180 countries. Eaton

entered the Chinese market in 1993 and has grown significantly since

then. In 2004, Eaton moved its Asia-Pacific headquarters from Hong

Kong to Shanghai. Today, Eaton has nearly 9,000 employees and 20

manufacturing facilities in China.

For more information about Eaton China, visit www.eaton.com.cn

For more information, visit

Eaton.com.cn

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