Lahmeyer-Compact- transformer substation

LLaahhmmeeyyeerr--CCoommppaacctt--ttrraannssffoorrmmeerr ssuubbssttaattiioonn®

type LCS-E.6type LCS-E.6type LCS-E.6type LCS-E.6

SÄCHSISCH-BAYERISCHESTARKSTROM-GERÄTEBAU GMBHOhmstraße 1 • 08496 Neumark/SachsenTelefon: +49 (0) 3 76 00 / 83-0Telefax: +49 (0) 3 76 00 / 34 14E-Mail: [email protected]

www.sgb-trafo.de

mailto:[email protected]

LAHMEYER

Compact-transformer substation®

LCS-E.6

LCS-E.6 / 08.01 Subject to technical changes!

SGB Neumark GmbH Tel.: 037600/83-008492 Neumark, Postfach 11 42 Fax: 037600/3414

Contents

1. Application and technical regulations- Use- Construction- VDE Regulations, IEC Standards

2. Station housing- Construction- Material and surface treatment- Fastening elements- Doors , locks- Safety class- Lifting, Transport- Earthing- Illumination

3. MV-switchboard- Main switch / disconnector- Conditions for transformer

4. Transformer- Transformer compartment- Mounting or replacing the Transformer

5. LV-switchboard- Main switch, fused load break switches- LV-fuse inserts- Output clamping- Instrumentation- Mains socket- Instrument panel

6. Earthing appliance

7. Transport and mounting - Excavation, building pit, base structure - Using lifting equipment, lifting points * Cable connection on MV and LV side

8. Technical documents

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Advantages:

• Small volume

• Robust

• Low weight complete station including all equipment and 630 kVA transformer about 3400kg

• Transformer compartment accessible via plug-in shutter on both sidesor through the roof.

• Front doors, door stops left and right adjustable, swivel angle 90‘ and 135‘

• Construction mains supply-/emergency supply inlet

• The steel base (about 320kg) is hot-galvanised, 100% poreles and doublepowder coated. The base unit is off modular designed (patent).

• Oil spill basin, 3mm sheet stainless steel supported above ground.Leakage may be examined from the outside.

• Cable inlet above basepan.

• Leading cables through the base structure is possible.

All in all an exceptional cheap, easy to handle and economic solution

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1. Operation and technical regulations

1.1 The compactstation type LCS-E is used as a mains and customer station.

1.2 The station is tested and certetified to PEHLA at 20 kA for 1 second. (Type of accessibility: B closed doors)

1.3 The station is tested and conforms to the following VDE regulations and IEC Standards:

VDE 0100 Erection of installations with rated voltages up to 1000V.

VDE 0101 Erection of installations with rated voltages above 1000V.

VDE 0105 Operation of power installations.

VDE 0110 Insulation co-ordination for equipment with low voltage systems.

VDE 0111/IEC 71-1 Insulation co-ordination to equipment for three phase a.c. systems above 1000 V

VDE 0141 VDE regulations for Earthing a.c. equipment for rated voltages above 1000V.

VDE 0532/ IEC 76-1,2,3,4,5 Transformers and reactors.

VDE 0670/IEC 466 A.c. switch gear and controlgear for voltages above 1000V.

VDE 0670/Section 611 (EN 61330/IEC 1330) Customer ready stations HV/LV

1.4 Mounting, set-up and operation of compact stations is executed by trained personal only, trained in the use of MV-switchgear, transformers, LV-switchgear, the appropriate VDE- regulations and accident preventation procedures (VBG 4).

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2. Station housing

Temperature class = 20‘ K Like all LAHMEYER-Compactstations, the type LCS-E compactstation is factory tested and supplied ready for use. The station contains one MV-compartment, LV-compartment and a transformer compartment.

After connecting the LV and MV cables, the station is ready for immediate operation.

2.1 The station housing type LCS-E, is manufactured in folded sheet metal design. It consists of the following parts:

- Steel base pan, hot-galvanized, 100% poreles and double powder coated.- Alternative: Base pan with intermediate mounting frame to fit CTA10 transformers.- Two sheet metal folded beams, connected to the base pan or intermediate

frame, for mounting MV- and LV equipment.- Easy removable roof, (only one screw to be removed in the LV-compartment.- Two lockable plug-in shutters within the side walls.- Housing including doors and shutters for the LV- and MV compartments, removable

in one piece from the steel base pan or intermediate frame.

2.2 Material and surface treatment

Material (under soil): Support structure Steel sheet, 3mm, hot-galvanized, 100% poreles and double powder coated

(zinc dust coating)

Oil pan for mounting the transformer, stainless steel 3 mm (1.4301-2B) Material (above soil level): Steel sheet, stripe galvanized (< 225 g/mq)

Surface treatment: Computer guided powder coating and 5-zone surface pre treatment, attain coatings <70ym in thickness.

The used powder lacquer is free of heavy metals and non toxic.

Zinc and Powder coatings = highest corrosion prevention.

Standard colour: Olive green (RAL 6003-Sruktur) Note:

The applied powder coating may be overcoated with other colours, using a special liquid lacquer. Rufing up the surface is not necessary. The corrosion resistance is not effected.

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2.3 All housing fittings are resistend against corrosion

2.4 Doors to the MV- and LV compartment are fitted with three hinges each.The doors are fitted with metal- swing leaver locks, prepared for fitting standard profile cylinders with 45o ore 90o lock-in angle. The profile cylinders are protected with weather hood’s.The same swing leaver locks are used for the plug-in shutters.

- Profile cylinders are not supplied with the station -

The door to the MV-compartment is fitted with 4x multiple security lock.Both doors may be hinged up either left- or right sided. This may be done onsite. Door swing: 90o and 135o.

2.5 Safety class

MV- and LV compartment IP 54Transformer compartment IP 43

2.6 The compact station, type LCS-E may be transported and lifted completelyequipped.The station is lifted via the base pan or the intermediate frame.(refer to technical documentation, page 11)

2.7 All fitted elements are electrically connected and earth’d at a central earthingstarpoint in the LV- compartment.

2.8 All parts under voltage are shock prove covered.

2.9. MV and LV compartment may be fitted with lights, switched by door operated contacts.

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3. MV- switchgear

Using CTA 10 transformers (12kV), the following switchgear can be fitted: The CTA 10 transformer has direct on tank mounted fuse holders:

• MINEX-C, 3K, Make Driescher 12 kV

• GC, 2K + 1TS, " Moeller (F & G) 12 kV

• 8DJ30, 3K , " Siemens 12 kV

• MD4 3 - 4 K " Hazemeyer 12 kV

• MF 3 - 4 K " Hazemeyer 12 kV

• DPS 12 AE, 1 K " Driescher 12 kV

In conjunction with DIN-Transformers 12/24 kV, max. dimensions LxWxH = 1250x900x1650mm, hermetic sealed type with insulated connections or NTB-Transformers 12/24 kV, the following switchgear may be fitted:

• FBA, 2 K + 1TSS, Make Alstom 12 / 24 kV

• MINEX-C, 3 K + 1TSS, * " Driescher 12 / 24 kV

• G.I.S.E.L.A.,2 K + 1TSS, * " 12 / 24 kV

• GA, 2 K + 1TSS, " Moeller (F & G) 12 / 24 kV

• 8DJ20, 2 K + 1TSS, " Siemens 12 / 24 kV

• 8DJ30, 2 K + 1TSS, " " 12 kV

• HH-fuses 12/24 for 2 cables " SGB 12 / 24 kV

• M 3007 for 2 cables " Driescher/SGB 12 / 24 kV

*(24kV - HH-fuse, fitting dimension 292mm)

Short syntax: K = Cable switch, TS = Transformer switch, TSS = Transformer switch inc. fuses.

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LCS-E.6 / 08.01 S


- MV-switch gear -

Illustration : switch gear options

Make Alstom, Typ FBA 3 sections., 2 K + 1 TSS

Make Driescher,Typ MINEX-C4 sections., 3 K + 1 TSS

ubject to technical changes!

Make Siemens,Typ 8DJ203 sections., 2 K + 1 TSS

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4. Transformer compartment

4.1 CTA 10 transformers = <630 kVA They are mounted above the base pan and are bolted to mounting-rails. Intermediate frame required !

4.2 DIN - transformers hermetically sealed with insulated connections = <630kVA DIN - transformer with porcelain-bushings Overall dimensions L x W x H = 1250x900x1650 mm

These transformers are placed in the base pan and secured against moving, not bolted.

4.3 Connection between transformer and MV-switchboard with ready-to-fit and tested copper or cable busbars

4.4 On the LV-side connections are made using high flexible, 3kV insulated conductors, Typ NSGAFOU 185 smm, depending on required power.

4.5 Initialling or changing transformers When installing or replacing transformers, all connections to MV switchboard and LV distribution must be well earthed and cut from power. The transformer is lifted up out of the top of station.

Use the following procedure:

• Loosen the roof fixture screw (red) placed near the upper door frame of the LV-distributor.Slide the roof about 100mm towards the LV-side and lift of the roof.

• Unscrew and remove the poke-protection panels above the transformer compartment.

• Open the plug-in shutters on both sides, remove earthing.

• Adjust the transport rails spacing on the base pan to match the transformer-undercarriage.

• Place transformer in station and connect.Consider voltage relief distances to DIN 0101 !

• Replace plug-in shutters and lock.

• Fix upper poke-protection panels.

• Lift on the roof and engage with the fixing screw. Fasten the screw within the LV-compartment.

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5. Low voltage distribution panel

Low voltage distributionLAHMEYER- Compactstation, type LCS-Ewith low voltage distribution.Incoming feed via 910 A rail, 8 outlets.

5.1 Option (standard)

5.1.1 NH-fused load break switches to DIN 43623 size 3 as main switch including:

- reinforced copper-busbars and contacts, high temperature resistant insulation material

- generously reinforced dimensioned-busbar.- Use of Al-Oxide-ceramics for the fuse body

at voltage: 400V current : 910A.

Fuses to be used: NH-fuse inserts to DIN 43620 and 3 pieces VDE 0636 part 22 Operation classification gTr Rated current 910 A or with copper blades 1000 A

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5.1.2 Output power

NH- fuses load break switches 400/630A 8 pieces

5.1.3 Current transformer connection options 900/600/300/5A, in L2 1 piece

5.1.4 Bimetal type current meter with peak-hold pointer (15min) 1 piece

5.1.5 Syncron sockets for syncronizing, fuses 3 pieces

5.1.6 Inlet for construction site supply in the right side wall of the LV-compartment, Ø each 100 mm 2 pieces

optional:- 3 current meters inc. current transformers

- 1 voltmeter incl. switch and fuses. - 1 Schuko- mains socket, fused - 1 lighting and fuse

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5.1.7 Meters, fuses and terminal strips are mounted in instrument panel above the LV-distribution.

5.1.8 MP and PE busbars for the entire earthing are mounted in the LV compartments floor area.

5.1.9 The cable fixture is placed below the removable floor panel.

5.2 Option (with LV- counter meter)

The illustration shows a „customer specified station“. Four of eight outputs have been replaced by certified current transformer and one LV-counter-meter cabinet, size 1.

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6. Earthing appliance

The central earthing bar is situated in the LV-cabinet. The soil earthing lead or deep soil earther are directly connected to the central earthing bar. In this way, all housing parts and the base pan are directly connected to the main earthing.

7. Transport, placing and erection The LCS-E is manufactured ready for connection and fully tested. For transport, placing and erection refer to technical documentation Bl.12

7.1 Placement on the building site. Dimensional drawing No. 283432.4 (with steel pan)

7.2 Resulting terrain height and surface water must be considered when determving the excavation depth. Site excavation drawing No: 283436.4 (with steel pan)

7.3 The excavation pit must have a strong floor bearing. Floor unevenness must be compensated with a levelled sand bed. In case difficult floor conditions are encountered, a lean-concrete substructure or concrete thresholds are recommended.

7.4 The station is placed on site by using an adequate lifting gear. The LCS-E can be lifted and put in place completely equipped. Set-up for lifting, Drawing No: 283434.9 (with steel pan)

7.5 Procedure for cable connection:

7.5.1 To be removed on the MV- side:• Face panel of the base pan• Cover of the MV-switch gear- cable-connection-compartment.

(see manual)• Lower door threshold (screwed on sideways)• Front floor panel.

7.5.2 To be removed on the LV- side:• Base pan fill skirt.• Front floor panel.• Lower door threshold (screwed on sideways)

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8. Technical documentation

- Dimensional drawing (with steel pan) 283432.4

- lifting-set-up drawing (with steel pan) 283434.9

- Site excavation drawing (with steel pan) 283436.4

- loading plan (with steel pan) 283435.6

- Typ testing Page 1+2

- Electro magnetic field test record

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LCS-E.6

LCS-E.6 Subject to technical changes!


- Type testing to DIN EN 61330, VDE 0670, Part 611 -

1. Proof testing of isolation levels on the factory -ready station

Since all electrical parts within the ready made Station have been tested to all relevant standard’s,the test above is only to be applied on the connections between those parts, as far as the dielectricparameters are influenced by mounting and setup conditions.

- Connections between MV-Switch gear and transformer have been typ-testetEvery connection with cable N2XSY 12/24 kV and make-up Earthing connections have been test-loaded with 50kV for 1min to test dielectric strength.

- Cable used for the LV-Side are NSGAFÖU,185 mm2 Cu, 1,8/3 kV

2. Heat testing

- Establishing temperature-class of the housing using a 630kVA transformer.

The temperature class is 20 K.

This test has been performed using transformer Fabr.-Nr. 346 268 of Fa. SBG

The LV- distributor was integrated in the test.

The temperature limit’s to DIN VDE 0660 part 500 are not exceeded.

2.1 Over load testing the LV- distributor 1,15 x IN permanent load (minimum 7 hours).The temperature limit’s to DIN VDE 0660 part 500 are not exceeded.All build in parts remain functional.

3. Testing to verify the safety grade, to DIN VDE 0470 ,part1

- MV-Compartment and LV-Compartment: IP54- Transformer compartment, insertion proof: IP43

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- Type testing to DIN EN 61330, VDE 0670, Part 611 -

4. Testing to evaluate the effects of internal error

- 3-phase short circuit within the cable connection compartment of the MV-Switch gear with closed doors and short circuit current of 20 kA, 1 s

- The criterious of valuations 1 – 6 according IEC 1330: 1995; DIN EN 61330 (VDE 0670 part 611) 1997-08 are fulfil

5. Test for verification of mechanical resistance of the housing against mechanical stress.

- Roof load minimum 2500N/m (Mounting load and snow load).Verified by means of static calculation.

- Wind load to IEC 694 (700N/mm2). Verified by means of static calculation.- Stress by outer blow on housing, door’s, swing leaver handle and ventilation opening’s.

Test using test assembly to VDE 0670 part 611 , passed.

6. Noise level of factory ready station

- The sound pressure level (LPA) is reduced by 3 dB(A) when the transformer is mountedin the station.

7. EMV-Test

The test was performed using 910A.On all test points values < 100 µT where measured.

See enclosure

Test record electric field intensity page 1 of 1

Compactstation Typ: LCS-ETest equipment: Combinova FD1 measuring range: 40nT – 100yT // 4 V/m-10 kV/m(RMS)Max. permittable value : magnetic field B in Micro-Tesla : 100 yTElectric field E in (kV/m) : 5kV/mAttendance: green , OS

Mains feed Uk-MV Us at short circuit DIN 630 kVA In=910AFeed current MV: 34.6A

The electric field strength on the sheet metal surface is max. 40V/m.

MV

cabi

net

Transformer

LV

cab

inet

0,2 m distancerange

Bearing load (bulk density) calculation to DIN 1054Lahmeyer-Compact Station LCS-E.6

Oil pan

Base pan

Medium voltagecable

Soil heap up

- Station overall weight: 3000kg = 30kN

- Floor contact section of runners: 0.2m x 2.42m x 2 =0.968mq

- Bearing load for the complete station: 31 k N/qm

- In accordance to table 1 of DIN 1054 (permissible site load),the permissible bearing load for mounting-sensitivebuildings on non binding soil

- -

Compressedgravel bed

is specified at 150kN/qm!

above illustration shows only the stations modular base structure (patent )Static calculations of the complete station are available.

air flow section (labyrinthfor draining off hot arc gathe MV-compartment intotransformer compartmen

B

Medium voltagecable

NOTE:Modular Base un

New foundation concept

air flow section (gap between oil pan and outer wall)for gases from the cable connection compartment.

pass)ses from the

t.

Oil pan

The front support acts trough its depth,as a labyrinth passbetween MV- and transformercompartment.

ase pan

Main dimensions of the stainlesssteel pan- (DxLxH)900x1490x450Material thickness t=3mm,1.4301Soil heap up

Compressed gravel bed

it - patent !

Please don’t hesitate to contact us any time:

� Dipl.-Ing. Andreas JahreißSGB GmbHOhmstraße 1, 08496 Neumark

Tel.: +49 37600 / 83-207Fax: +49 37600 / 3414

� Dipl.-Ing. Holger KlotzSGB GmbHOhmstraße 1, 08496 Neumark

Tel.: +49 37600 / 83-226Fax: +49 37600 / 3414

� Dipl.-Ing. Dieter SippelLeiter Vertriebsbüro OlpeDahler Str. 31 a, 57462 Olpe Dahl

Tel.: +49 2761 / 83 71 42Fax: +49 2761 / 83 71 43Mobil: +49 172 / 94 94 037

Lahmeyer-Compact- transformer substation

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