IEC MV SWITCHGEARP4S PRODUCT RANGE

E+I Engineering’s IEC MV switchgear range is an indoor air

insulated switchgear for medium voltage power distribution

available in 12kV, 17.5kV, 24kV & 40.5kV

P4 Series (P4S) is an indoor air insulated switchgear for medium

voltage power distribution. This new series of switchgear is based

around the ethos of safety and reliability and is a result of E+I

Engineering group’s quest for continuous innovation and long-term

R&D commitment.

The modular construction of the range allows E+I Engineering’s

team of expert engineers to customise each medium voltage power

solution based on individual project specification.

Key features:

– Circuit breaker is withdrawable for maintenance

– Integration of internal arc prevention technologies

– Vacuum Technology for safe, compact and reliable performance

– Compact and modular design for increased project flexibility.

– Comprehensive mechanical and electrical interlocks for safety and

prevention of maloperation

Standards

The P4S range is fully

ASTA Tested Certified. It is

manufactured in a certified

management system

environment where Quality ISO

9001, Safety OHSAS 18001and

Environmental ISO 14001

standards are applied to all

aspects of the manufacturing

and installation processes. It is

manufactured in accordance

with IEC 62271-200, IEC

62271-1 and IEC 62271-100

Type Tests

– Dielectric tests

– Power frequency withstand test

– Lightning impulse withstand test

– Measurement of the resistance

of the main circuits

– Temperature-rise tests

– Short-time withstand current

and peak withstand current tests

– Verification of the IP rating

– Additional tests on auxiliary and

control circuits

– Verification of making and

breaking capacities

– Mechanical operation tests

– Verify the protection of persons

against dangerous electrical

effects

– Internal arc test

ASTA Certificates

E+I Engineering completed

extensive testing at ASTA and

KEMA accredited laboratories

to ensure the product we

supply meets the international

requirements.

STANDARDS

OHSAS 18001:2007 OHS 533652

ISO 9001:2015 FM 12680

ISO 14001:2015 No: EMS 566536

All certificates available on request

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MV SWITCHGEAR

IEC P4S PRODUCT RANGE

SWITCHGEAR STRUCTURE

The panel is divided into 5 independent compartments which are;

1. Cable Compartment

2. Voltage transformer compartment

3. Vacuum circuit breaker compartment

4. Main busbar compartment

5. LV Control Section

1. Cable Compartment

The cable compartment is accessible from the rear door. This door has an interlock with the earth switch

ensuring that the door will only open when the earth switch is closed.

2. Voltage transformer compartment

The voltage transformer (VT) compartment allows for a withdrawable voltage transformer to be connected and

racked in. An interlock on the VT truck ensures that the door must be closed before the voltage transformer is

racked in.

3. Vacuum circuit breaker compartmentThe vacuum circuit breaker (VCB) compartment houses the withdrawable VCB. An interlock on the VCB truck

ensures that door must be closed before the VCB can be racked in to the service position.

4. Main busbar compartment

The main busbar compartment houses the main horizontal inter-connecting bus. It is accessed via a removable

panel at the rear of the switchgear.

5. Low voltage control compartment The low voltage control compartment houses all the main control and protection relays required. There is a

direct connection from this compartment to the wiring plug connected to the VCB.

*If required the plenum assembly is bolted to the top of the enclosure, the plenum assembly can be extended

past the Switchgear to an external wall.

SWITCHGEAR STRUCTURE

EnclosuresThe enclosure and partition are made from high quality cold rolled mild steel or galvanized

sheet steel, the processing of these materials is carried out by CNC punch and multiple edge

folding technology. The panels used within the structure are secured by means of riveting or

high tensile nut and bolt.

– Side sheets are made from durable 2mm Aluzinc sheet steel incorporating advanced double bend

technology to ensure additional structural strength

– Gland plates made from 3mm stainless steel

– Exterior paint in RAL 7035 light grey

– Doors with integral strength enhancing struts

– Drop pin door latch ensuring the door is held shut during an arc fault event

– Viewing window for visual confirmation of VCB status

– Mechanical VCB open push button ensures that the breaker can be manually opened even during

power failure.

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MV SWITCHGEAR

IEC P4S PRODUCT RANGE

SWITCHGEAR STRUCTURE

Product Dimensions

Rating (A) width A (mm) height B (mm) depth C (mm) Weight (kg)

12kV

630 - 1250 650 2420 1610 800 - 1200

630 - 1250 (40kA) 800

2000 800

630 - 1200 with side cover 675

2000 with side cover 825

17.5kV

630 - 1250 650 2420 1610 800 - 1200

630 - 1250 (40kA) 800

2000 800

630 - 1200 with side cover 675

2000 with side cover 825

24kV

630 - 1250 800 2480 1800 1000 - 1400

2000 1000

630 - 1200 with side cover 825

2000 with side cover 1025

40.5kV

630 - 2000 1200 2480 2800 1500 - 1900

630 - 2000 with side cover 1225

SWITCHGEAR OPTIONS

Protection Relays

Choice of protection relays from all major manufacturers including ABB Relion series, Micom, Sepam and SEL

The modular construction of the range allows customers to tailor each medium voltage power

solution based on individual project specification.

– Choice of protective relays, circuit breakers, Transfer Controllers, Generator Controllers or Paralleling

Controls for increased performance flexibility.

– CB Control Switches, Lock out Relays, Annunciator lights, etc. can be added

– Optional Integrated Grounding Switch or grounding truck available

Vacuum Circuit Breakers

Choice of ABB VD4 and Schneider Electric Easypact available

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MV SWITCHGEAR

IEC P4S PRODUCT RANGE

TECHNICAL DATA

item 12kV 17.5kV 24kV 40.5kV

P4S Switchgear Technical Data

Rated Frequency Hz 50 50 50 50

Rated power frequency (60s) kV 28 38 50 95

Rated Lightning impulse withstand voltage

(peak)

kV 75 95 125 185

Rated current A 630, 1250, 2000

Rated short-time withstand current (3s) kA 31.5, 40 31.5, 40 31.5 31.5

Rated Peak withstand current kA 80, 100 80, 100 80 80

Arc Fault Rating (1s) kA 31.5 AFLR 31.5 AFLR 31.5 AFLR 31.5 AFLR

Degree of protection IP IP4X IP4X IP4X IP4X

ESW Earthing Switch Technical data

Rated power frequency kV 28 38 50 95

Rated lightning impulse withstand voltage (peak) kV 75 95 125 185

Rated short-time withstand current (3s) kA 31.5, 40 31.5, 40 31.5 31.5

Rated Peak withstand current kA 80, 100 80, 100 80 80

Phase space mm 150, 210 150, 210 210, 275 280

Normal Service Conditions

Ambient air temperature °C

Maximum +40

Maximum 24h average +35

Minimum 24h average -5

Minimum recommended +5

Altitude above sea level Meters (m)

Maximum 1000

Conditions of humidity %

Average value of relative humidity (24h) ≤ 95

Average value of relative humidity (1 month) ≤ 90

Pollution The ambient air must not be significantly polluted by dust,

smoke, corrosive and/or flammable gases, vapours or salt.

TECHNICAL DATA

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MV SWITCHGEAR

IEC P4S PRODUCT RANGE

WWW.E-I-ENG.COM

Email:info@e-i-eng.com

E+I Engineering USA CorpUSA Manufacturing Location

400 Supreme Industrial DriveAnderson South Carolina29621

Tel: +1 864 375 1757

E+I Engineering Ltd. European Manufacturing Location

BallyderowenBurnfoot Co.DonegalIreland

Tel:(UK) +44 (0)28 71353030(ROI) +353 (0)74 9368719

Powerbar Gulf LLCMiddle East Manufacturing Location

N16/N17Al Ghail Industrial ParkRas Al KhaimahPO Box 13229UAE

Tel: +971 (0) 7221 6100

E+I Engineering Ltd. UK Manufacturing Location

Campsie Industrial EstateDerryNorthern IrelandBT47 3XY