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POWER DISTRIBUTION . SMART GRID SOLUTIONS GRIDCON ® iTAP ® THE SYSTEM SOLUTION FOR VOLT AGE REGULATED DISTRIBUTION TRANSFORMERS.
poWER dIsTRIBuTIoN . sMART GRId soLuTIoNs
GRIdCoN iTAp
ThE sYsTEM soLuTIoN FoR VoLTAGE REGuLATEd dIsTRIBuTIoN TRANsFoRMERs.
INTEGRATING RENEWABLE ENERGY WIThouT GRId ExpANsIoN.
2
GRIdCoN iTAp
3utilizing grid capacities with voltage regulated distribution transformers.
A voltage regulated distribution transformer gets to the heart of the problem maintaining the voltage band by dynamically adapting the voltage. It decouples the voltages of low voltage and medium voltage grid. This results in an 11 percent rather than a 3 percent voltage rise being available in the low voltage grid for feedin from renewable energies. This usually eliminates the need for expensive grid expansion, and in the few situations where this is not the case, the network operators still gain time. Moreover, with voltage regulated distribution transformers, network operators realize a higher utilization of their operating equipment and therefore use it more efficiently.
Voltage regulated distribution transformers the economic alternative to grid expansion.
Network operators face a difficult dilemma: they need to ensure a stable supply voltage in the low voltage grid and at the same time integrate an increasing amount of renewable energy. Within the voltage band of 10 percent of the rated voltage according to dIN EN 50160, a maximum voltage rise of 3 percent is available to renewable energies in the low voltage grid. The rest is reserved for the medium voltage grid, voltage drops, and setting imprecisions. Rapidly growing feedin volumes are increasing the risk of the voltage band being violated. Network operators are being forced into expensive expansion work even though the capacities of their operating equipment is far from exhausted.
Primary substation Medium voltage grid
Secondary substation Low voltage grid
Outside of the voltage band
Outside of the voltage band
+10 %
+5 %
-5 %
-10 %
0 %
3 % voltage rise from feed-in2 % voltage rise from feed-in
5 % voltage drop
Maximum load
Maximum feed-in
5 % voltage drop
110 kV 20 kV 20 kV 0.4 kV 0.4 kV
Voltage drop and setting imprecision distri-bution transformer, 1.5 % each
2 % regulation of bandwidth transformer
Devi
atio
n fr
om ra
ted
volta
ge (i
n %
)
Primary substation Medium voltage grid
Secondary substation Low voltage grid
Outside of the voltage band
Outside of the voltage bandDevi
atio
n fr
om ra
ted
volta
ge (i
n %
) +10 %
+5 %
-5 %
-10 %
0 %
11 % voltage rise from feed-in
2 % voltage rise from feed-in
5 % voltage drop
Maximum load
Maximum feed-in
Down-regulation
Upregulation5 % voltage drop
110 kV 20 kV 20 kV 0.4 kV 0.4 kV
2 % regulation of bandwidth transformer
4 % Regulation of bandwidth distribution transformer
Voltage regulated distribution transformers keep the voltage in the distribution grid stable by compensating for the voltage rise from distributed generation. Likewise they balance the voltage drop caused by additional loads, such as electric cars or heat pumps. Additional cables dont have to be laid, and there is no need for more secondary substations. since the start of 2011, our fi eld trials have been demonstrating how voltage regulated distribution transformers help to avoid grid expansion.
GRIdCoN iTAp ThE sYsTEM soLuTIoN FoR VoLTAGE REGuLATEd dIsTRIBuTIoN TRANsFoRMERs.
GRIdCoN iTAp
4
The GRIdCoN iTAp system solution provides the entire functionality required alongside the transformer for voltage regulated distribution transformers:
I The onload switching function allows the ratio between the upper and lower voltage in the transformer to be dynamically adjusted under load
I The drive function guarantees reliable switchingI The regulator function including sensors
measures the voltage and derives the switching operations required
Regulator function
I Voltage regulation on the low voltage busbarI Threephase voltage measurementI Automatic, remote, and manual modesI Raise / lower operationsI Ethernet and Rs232 interfacesI Control system protocols IEC 608705101,
IEC 608705104, IEC 61850I sheet steel housing, powdercoatedI Level of protection: Ip54
onload switching function
I onload tapchanger following the reactor principleI Arc quenching in specifi cally developed vacuum switching
tubesI Fitted in transformer tank above the active partI Maintenancefree over the transformers life
(up to 700,000 tap changes)I Regulation on the upper voltage sideI 3 phasesI Maximum of 9 operating positionsI Freely confi gurable regulating range, e.g. 4 x 2.5 percent
(maximum 600 V step voltage)I 30 A maximum rated throughcurrentI 24 kV voltage class
5
drive function
I stepping motorI Fitted on the transformer cover above
the onload tapchangerI Runs for less than 1 second per
tapchange operation
suITABLE FoR ANY sECoNdARY suBsTATIoN ALso WITh oNLoAd TApChANGER.
secondary substations are designed for minimum space requirements. only if voltage regulated distribution transformers fi t in these stations are they an economic solution. The challenge is to design a voltage regulated distribution transformer with the same dimensions as a nonregulated one.
Makes full use of the available space our innovative way of installing the onload tapchanger in the transformer.
I The onload tapchanger fi ts perfectly in the space available above the active part of the transformer
I Because of the vacuum technology, the onload tapchanger doesnt need its own oil compartment
I since the tap change takes place in special vacuum tubes, there is no possibility of oil contamination
GRIdCoN iTAp
6
1,288 mm
826 mm
1,73
0 m
m
Transformer 630 kVAwith GRIDCON iTAP
Typical specification transformer 630 kVA
Width 1,288 mm 1,500 mm
Height 1,730 mm 1,750 mm
Depth 826 mm 850 mm
7
ouR VACuuM TEChNoLoGY RENoWNEd sINCE 1987.
GRIdCoN iTAp
8
hIGhER pERFoRMANCE, hIGhER VALuE.
Maintenancefree and longlasting
I With up to 700,000 maintenancefree tap changes, the onload tapchanger works reliably over the entire transformer life
I The onload tapchanger doesnt use any electronics that restrict its service life
I Maintenancefree due to vacuum technology
Maximum operational reliability
I No critical operating statuses thanks to the reactor switching principleI A communication interface permits interaction with the control system if
requiredI GRIdCoN iTAp is the product of all our experience as we have been
developing onload tapchangers since 1929: More than 35,000 vacuum technology based and over 10,000 reactor type onload tapchangers from Maschinenfabrik Reinhausen are in use around the world
Low life cycle costs
I A total of 700,000 reliable tap changes make maintenance super uous I The onload tapchanger works reliably over the entire transformer lifeI If necessary, the motor and voltage regulator can be easily replaced
designed with future requirements in mind
I A maximum of 9 operating positions and step voltages of up to 3 percent allow a regulating range of up to 24 percent. The onload tapchanger can also be confi gured asymmetrically for situations with mainly loads or mainly feedin supplies
I Full use can be made of the voltage band of 10 percent according to dIN EN 50160
simple installation in the transformer
I The onload tapchanger is mechanically connected using standard screwsI simple crimping provides the electrical connectionI No additional electric bushings are needed
The perfect solution for distribution network operators.
9
TEChNICAL dATA oNLoAd TApChANGER.
On-load tap-changer iTAP III
Number of phases 3
Application At any point in the winding
Maximum rated through current Ium (A) 30
Rated short time current (in A) 600
Rated duration of short-circuits (in s) 3
Rated peak withstand current (in A) 1,500
Maximum rated step voltage Uim (in V) 600
Maximum rated tapping voltage Uim (in V) 1,200
Step capacity PStN (in VA) 9,000
Maximum number of operating positions 9
Rated insulation level
Highest voltage for equipment Um (in kV) 24
Rated short duration power frequency withstand voltage (in kV 1.2 / 50 s) 125
Rated lightning impulse withstand voltage (in kV, 50 Hz 1 min) 50
Rated frequency (in Hz) 50
Temperature range of transformer oil -25 C to +105 C
Maximum permissible overpressure/vacuum (in bar) + / - 0.3
Maximum number of tap-change operations 700,000
Step capacity diagram GRIDCON iTAP
700
600
500
400
300
200
100
0
Rate
d st
ep v
olta
ge U
i [V]
0 5 10 15 20 25 30 35
Rated through current Iu [A]
9,000 VA
GRIdCoN iTAp
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TEChNICAL dATA VoLTAGE REGuLAToR ANd CoNTRoL CABINET.
Voltage regulator and control cabinet iTAP III
Voltage 3 AC 400 V
Current 1 A
Frequency 50 Hz
Test voltage to ground 2 kV / 1 min
Operating temperature -25 C ... +60 C
Duration of the tap-change operation 0.9 s
Shortest gap between tap-change operations 3 s
Interfaces Ethernet, RS232
Protocols IEC 60870-5-101, IEC 60870-5-104, IEC 61850
Housing (W x H x D) 380 x 380 x 180 mm
Weight 15 kg
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Maschinenfabrik Reinhausen GmbHFalkensteinstrae 893059 Regensburg, Germany
phone: +49 941 4090 0Fax: +49 941 4090 7001EMail: [email protected]
www.reinhausen.com
MR WORLDWIDE
AusTRALIAReinhausen Australia pty. ltd.17/2022 st Albans RoadKingsgrove, NsW, 2208phone: +61 2 9502 2202Fax: +61 2 9502 2224EMail: [email protected]
BRAZILMR do Brasil Indstria Mecnica Ltda.Av. Elias Yazbek, 465, CEp: 06803000Embu so paulophone: +55 11 4785 2150Fax: +55 11 4785 2185EMail: [email protected]
CANAdAReinhausen Canada Inc.1010 sherbrooke West, suite 1800Montral, Qubec h3A 2R7Tl: +1 514 286 1075Fax: +1 514 286 0520EMail: [email protected]
INdIAEasunMR Tap Changers (p) Ltd.612, CTh Road, TiruninravurChennai 602 024phone: +91 44 26300883Fax: +91 44 26390881EMail: [email protected]
IRANIran Transfo After sales services Co.Zanjan, Industrial Township No. 1 (Aliabad)Corner of Morad str., postal Code 4533144551EMail: [email protected]
ITALYReinhausen Italia s.R.L.Via Alserio, 16, 20159 Milanophone: +39 02 694 3471Fax: +39 02 694 347 66EMail: [email protected]
JApANMR Japan CorporationGerman Industry park, 1182 hakusanMidoriku, Yokohama 2260006phone: +81 45 929 5728Fax: +81 45 929 5741
LuxEMBouRGReinhausen Luxembourg s.A.72, Rue de prs, L7333 steinselphone: +352 27 33 471Fax: +352 27 33 4799EMail: [email protected]
MALAYsIAReinhausen Asiapacifi c sdn. Bhd.Level 11 Chulan Tower, No. 3 Jalan Conlay50450 Kuala Lumpurphone: +60 3 2142 6481Fax: +60 3 2142 6422EMail: [email protected]
p.R.C. (ChINA)MR China Ltd. (MRT) () 3604E, pC: 200120: +86 21 6163 4588: +86 21 6163 4582: [email protected]@reinhausen.com: www.mrchina.cn
RussIAN FEdERATIoNooo MRNaberezhnaya Akademika Tupoleva 15, Bld. 2(Tupolev plaza), 105005 Moscowphone/Fax: +7 495 980 89 67EMail: [email protected]
souTh AFRICAReinhausen south Africa (pty.) Ltd.No. 15, Third street, Booysens ReserveJohannesburgphone: +27 11 835 2077Fax: +27 11 835 3806EMail: [email protected]
souTh KoREAReinhausen Korea Ltd.Baek sang Bldg. Room No. 150019728, Kwanhundong,ChongroKu, seoul 110718phone: +82 2 767 4909Fax: +82 2 736 0049EMail: [email protected]
usAReinhausen Manufacturing Inc.2549 North 9th Avenue, humboldt, TN 38343phone: +1 731 784 7681Fax: +1 731 784 7682EMail: [email protected]
uNITEd ARAB EMIRATEsReinhausen Middle East FZEdubai Airport Freezone, Building phase 63rd oor, offi ce No. 6EB, 341 dubaiphone: +971 4 2368 451Fax: +971 4 2368 225EMail: [email protected]
please note:
The data in our publications may differ from
the data of the devices delivered. We reserve
the right to make changes without notice.
IN3130904/00 EN GRIdCoN iTAp
F0301100 09/12 pu
Maschinenfabrik Reinhausen Gmbh 2012
ThE poWER BEhINd poWER.
