Unit substations
Hochspannungstechnik Peters & Thieding GmbH
PetersHochspannungstechnik GmbHThieding
&
OOVVEERRVVIIEEWW
Our unit substations are industrially manufacturedturnkey units consisting of:● enclosure● medium voltage switchgear● transformer● low voltage distribution
The applications for our unit substations are:● public power supply● industrial energy distribution● construction site power supply● grid connections for wind power systems
Standards and type tests● VDE 0670 Part 611 (draft of 8/93)● IEC 1330, 1st issue of 11/95
2
Design Type Voltage Transformer MV switchgearkV kVA
Packaged substations
Concrete BK 12/24 max. 800 SF6 (air-insulated)
Sheet steel, insulated SIK 12/24 max. 1600 SF6
Walk-in-type substations
Concrete B 12/24 max. 3 x 1000 Air-insulated (SF6)
Sheet steel, insulated SI 12/24/36 max. 3000 Air-insulated (SF6)
Our unit substation range comprises:
CCHHAARRAACCTTEERRIISSTTIICCSS
3
Operator safety● Arc fault proofing (internal faults)
by pressure relief and cooling of arcing gases
● Prod-proofing (penetration from outside)by internal hinges and ventilation grilles with special profiles to preventpenetration
Flexibility● Modular system● Installation of various components facilitated● High versatility in external design
Environmental friendliness● Electromagnetic compatibility (EMC)
Compliance with the 26th German Pollution ControlOrdinance in the structural design of the LV system and LV cable connections
● Recyclable materials (concrete, steel) make disposal un-problematical
● Transformer sump in highly compacted, oil-proof, quality controlled concrete with special coating, TÜV certified andmonitored
Economy● Long life● High availability
by:● partitioning of the switchgear rooms to prevent ingress of dirt and
moisture from the transformer room ● thermal insulation of doors, roof and walls (on sheet steel substations) to
prevent condensation on the switchgear● sectional construction, facilitating rapid replacement of individual
components without affecting systems in other functional areas
Partition and pressurerelief in a packaged
substation
LV cable connection withreduced magnetic field
strength
Manufacture of a substation door with rock
wool insulation
Clinker faced concretepackaged substation
PPAACCKKAAGGEEDD SSUUBBSSTTAATTIIOONNSS IINN CCOONNCCRREETTEE
4
Substation enclosure● Foundation
The substation enclosure consists of a reinforced concrete foundationwith transformer oil sump. The medium voltage cables are led in throughHauff HD 125 glands, and the low voltage cables through an open slot.
● SuperstructureThe foundation supports a hot dip galvanised frame structure, the doorframes and the section walls. The side walls consist of concrete slabs andare bolted to the frame.
● RoofThe roof consists of a single concrete slab. As an alternative, a thermallyinsulated GRP or aluminium double skin roof with granulate filling canbe used.
● DoorsThe doors consist of an aluminium sandwich structure with thermal insu-lation and neoprene seals. The fittings and fastening screws are in stain-less steel. Each door has a central lock for profile barrels, a three pointbar fastening system and an automatic stop.
● VentilationThe ventilation components are designed as doors, and consist of a sheetsteel frame with anodised aluminium vanes and insect guards. The hingesin stainless steel can be operated from the medium voltage room.
Medium voltage switchgearSF6-insulated ring main units (RMU) up to 24 kV with switch disconnectorsor circuit breakers are used.
TransformerOil-immersed transformers in hermetic design to DIN 42500 are used asstandard. Other oil-immersed or cast resin transformers can however alsobe installed, subject to their maximum capacity and dimensions.
Low voltage distributionThe low voltage unit is specially designed for service in packaged substati-ons. It is a type tested, open distribution board, and is mounted on the sec-tion wall of the LV room. Switch disconnectors or compact circuit-breakersand fuse switches are used as the switching devices.
Sectional structure with MV, LV andtransformer compartments
SF6-insulated ring main unit
Transformer with MV plugs and LV terminals
Low voltage distribution with localmetering
Type max. MV panels Utility- Dimensions Weight with-transformer max. metering L x W x H out transformercapacity kVA SF6 air-insulated mm kg (approx.)
BK 002 800 5 LV, MV 2790 x 1943 x 2305 4800
BK 003 630 (800) 3 (1) 2880 x 1280 x 2255 4500
BK 004 250 2 (3) 1770 x 1680 x 1995 2800
BK 043 800 5 3 LV, MV 2790 x 1943 x 2255 5200
TTYYPPEE:: BBKK
5
Substation variants
Concrete packagedsubstation BK 003
Concrete packagedsubstation BK 003
installed and in operation
PPAACCKKAAGGEEDD SSUUBBSSTTAATTIIOONNSS IINN SSHHEEEETT SSTTEEEELL,, IINNSSUULLAATTEEDD
6
Substation enclosure● Foundation
The substation enclosure consists of a reinforced concrete foundationwith transformer oil sump. Hauff HD 125 and 75 glands are providedfor cable entry. In place of the concrete foundation, a hot dip galvanisedsteel base frame for a foundation to be laid locally can also be used.
● SuperstructureThe foundation supports a hot dip galvanised frame structure to whichthe door frames, the section walls and the side walls are fastened. Theside walls consist of 60 mm thick sheet steel sandwich panels with thermal insulation.
● RoofThe roof consists of aluminium sheet with PU foam for thermal insulationand a GRP liner. As an alternative, an aluminium double skin roof withgranulate filling can be used.
● DoorsThe doors consist of an aluminium sandwich structure with thermal insulation and neoprene seals. The fittings and fastening screws are instainless steel. Each door has a central lock for profile barrels, a threepoint bar fastening system and an automatic stop.
● VentilationThe outer walls of the transformer room are designed as ventilationunits. They consist of sectional steel components with insect guards,arranged in a staggered manner with intervals. The ventilation elementscan be unfastened and swung out slightly from the medium voltageroom for inspection and removal of the transformer.
Medium voltage switchgearSF6-insulated ring main units (RMU) or metal-enclosed air-insulated panelsof type ZK 8 for up to 24 kV are used as the medium voltage switchgear.These consist of type tested panels with load-break switches or circuit- breakers and can be installed side by side in any configuration.
TransformerOil-immersed transformers in hermetic design to DIN 42500 are used asstandard. Other oil-immersed or cast resin transformers can however alsobe installed, subject to their maximum capacity and dimensions.
Low voltage distributionThe low voltage unit is either an open distribution board or a metal-enclo-sed, modular switchgear assembly of type NS 1. It consists of individualtype tested panels with a busbar running the length of the assembly.Switch disconnectors or compact circuit-breakers and fuse switches can beused as the switching devices. Metering and monitoring equipment canalso be installed.
Accessibility of the MV and trans-former compartments
Air-insulated medium voltage system ZK 8
Low voltage distribution NS 1
Low voltage distribution assemblywith reduced magnetic field strength
7
TTYYPPEE:: SSIIKK
Substation variants
Type max. MV panels Utility Dimensions Foundationtransformer max. metering L x W x H S: Steelcapacity kVA SF6 air-insulated mm C: Concrete
SIK 002 800 5 LV, MV 2790 x 1943 x 1630 1700 C, S
SIK 003 800 3 2960 x 1270 x 1605 1500 C, S
SIK 25-22 1600 4 2500 x 2200 x 2250 3500 C, S
SIK 25-23 1600 4 (1) 2500 x 2350 x 2565 3500 C
SIK 27-22 630 4 3 2700 x 2200 x 2455 3800 C, S
SIK 27-27 630 5 4 2700 x 2700 x 2455 4000 C, S
SIK 30-23 1600 2 x 4 MV 3000 x 2350 x 2565 4500 C
SIK 31-22 1600 4 3 3150 x 2200 x 2250 4500 C, S
SIK 35-23 1600 2 x 4 MV 3500 x 2350 x 2565 5000 C
Sheet steel packaged substation SIK 003 with concrete foundation
Weight withouttransformerkg (approx.)
WWAALLKK--IINN--TTYYPPEE SSUUBBSSTTAATTIIOONNSSIINN CCOONNCCRREETTEE
8
Substation enclosure
● StructureThe structure is in reinforced concrete with a cable basement, walls and a roof. The cable basement with transformer oil sump serves as the foundation for the substation. The roof consists of a concrete slab cast ina single piece, with an all round border and rain outlet.
● DoorsThe doors consist of an aluminium sandwich structure with thermal insulation and neoprene seals. The fittings and fastening screws are instainless steel. Each door has a central lock for profile barrels, a threepoint bar fastening system with panic catch and an automatic stop. The door frame is in aluminium and is installed from the inside.
● Double floorThe switchgear rooms are fitted with a hot dip galvanised false floorwhich is covered with screwed down wooden boards in front of the switchgear.
Medium voltage switchgearMetal-enclosed air-insulated panels of type ZK 8 are used as the mediumvoltage switchgear. These consist of individual type tested panels for up to24 kV with load-break switches or circuit-breakers, metering and riserpanels, and can be installed side by side in any configuration.
TransformerOil-immersed transformers in hermetic design to DIN 42500 are used asstandard. Other oil-immersed or cast resin transformers can however alsobe installed, subject to their maximum capacity and dimensions.
Low voltage distributionThe low voltage unit is a metal-enclosed, modular switchgear assembly of type NS 1. It consists of individual type tested panels with a busbar running the length of the assembly. Switch disconnectors or compact circuit-breakers and fuse switches can be used as the switching devices.Metering and monitoring equipment can also be installed.
Low voltage distribution NS 1
Oil-immersed transformer in hermeticdesign
Air-insulated medium voltage switchgear ZK 8
Enclosure with cable basement anddoors
TTYYPPEE:: BB
9
Substation variants
Type max. MV panels, air-insulated Length Weight, emptytransformer for 1/2/3 transformers, max. kg (approx.)capacity kVA 12 kV 24 kV mm Bxx-26/ -30
B 35 1000 4 2 (3) 3500 16500/18000
B 40 1000 4 2 (3) 4000 19000/20500
B 42 1000 4 3 4200 19800/21000
B 45 1000 4 3 4500 20500/22200
B 50 1000 5 4 5000 22200/24000
B 55 2 x 1000 6/4 4/3 5500 23800/25700
B 60 2 x 1000 7/4 5/3 6000 25500/27500
B 65 2 x 1000 7/5 5/4 6500 27200/29300
B 70 2 x 1000 8/6 6/4 7000 28900/31000
B 75 2 x 1000 9/7 7/5 7500 30500/32800
B 80 3 x 1000 10/7/4 7/5/4 8000 32200/34600
B 85 3 x 1000 11/8/6 8/6/4 8500 33900/36300
B 90 3 x 1000 12/9/6 9/7/5 9000 35500/38100
The following applies to all types: Width: 2650 mm (Type B xx-26) or 3000 mm (Type B xx-30)Height: 3380 mm (clear internal height: 2300 mm)
Greater transformer capacities on request.
Walk-in-type concrete substation as a wind parksupply substation
Concrete substation, clinker faced
10
WWAALLKK--IINN--TTYYPPEE SSUUBBSSTTAATTIIOONNSSIINN SSHHEEEETT SSTTEEEELL,, IINNSSUULLAATTEEDD
Substation enclosure● Base frame
The station enclosure consists of a self-supporting base frame in hot dip galvanised steel girders with an oil sump. The cables are entered frombelow through corresponding openings. A foundation to be laid locally isnecessary for erection and to seal the substation from below.
● SuperstructureThe substation superstructure consists of galvanised steel sections boltedtogether to form a sturdy frame. They are cladded on the outside withpainted steel or aluminium panels in sandwich structure with 60 mmthermal insulation. The aisles in front of the switchgear panels are cover-ed with screwed down wooden boards.
● RoofThe roof consists of insulated double sheet steel panels with GRP coating.It has an all round border in aluminium and a rain outlet.
● DoorsThe doors consist of an aluminium sandwich structure with thermal insu-lation and neoprene seals. The fittings and fastening screws are in stain-less steel. Each door has a central lock for profile barrels, a three pointbar fastening system with panic catch and an automatic stop.
● VentilationThe outer walls of the transformer room are designed as ventilationunits. They consist of sectional steel components with insect guards,arranged in a staggered manner with intervals.
Medium voltage switchgearMetal-enclosed air-insulated panels of type ZK 8 are used as the mediumvoltage switchgear. These consist of individual type tested panels for up to36 kV with load-break switches or circuit-breakers, metering and riserpanels.
TransformerOil-immersed transformers in hermetic design to DIN 42500 are used asstandard. Other oil-immersed or cast resin transformers can however alsobe installed, subject to their maximum capacity and dimensions.
Low voltage distributionThe low voltage unit is a metal-enclosed, modular switchgear assembly oftype NS 1. It consists of individual type tested panels with a busbar runningthe length of the assembly. Switch disconnectors or compact circuit-brea-kers and fuse switches can be used as the switching devices. Metering andmonitoring equipment can also be installed.
Walk-in-type substation in sheetsteel, insulated
Air-insulated medium voltage switchgear ZK 8, 36 kV
TTYYPPEE:: SSII
11
Substation variantsThe walk-in-type sheet steel substations are not standardised. All sizes and configurations can be implemented as long as the maximum dimensions and electrical data are not exceeded.
The type designation is:
SI x-y where: x: length in dmy: width in dm
The maximum data are as follows:
Examples
Substation with transformer, 1500 kVA, 33/0,4 kVSI 99-35
Substation without transformer, 33 und 11 kVSI 77-27
Type max. transformer max. voltage max. length max. width max. heightcapacity kVA kV mm mm mm
SI 99-35 3000 36 9900 3500 3000
SI-substation with air-insulatedmedium voltage
switchgear ZK 8, 12 kV
LV LV LV
DC
LV
Unit substations
PetersHochspannungstechnik GmbHThieding
&
Hochspannungstechnik Peters & Thieding GmbHSüdring 40 · D-21465 Wentorf · P.O. Box 80 07 28 · D-21007 Hamburg
Telephone +49 (0) 40 72 92-30 · Fax +49 (0) 40 72 92-3159 · E-Mail [email protected] · Internet http://www.peters-thieding.com
Peters & Thieding Romania S.A.Strada 8Martie Nr. 4RO-4800 Baia MareRomaniaTelephone +40 62 213 581Fax +40 62 213 583E-Mail: peters&[email protected]
Peters & Thieding Shantou Ltd.Jin Xin Bei LuXia Peng Industrial Area, Zhao Hoa BuildingCN-515065 ShantouP.R.ChinaTelephone +86 754 835 4278Fax +86 754 835 4378E-Mail: [email protected]
Arctec Ltd.Room 1805Queen’s Place No. 74, Queen’s Road CentralHongkongP.R. ChinaTelephone +852 25 300 760Fax +852 28 015 259E-Mail: [email protected]