JSC “ELUR” CERC 1 JSC “ELektrichesky Upravlyayemy Reactory ...

Key companies working with ELUR/CERC for controllable reactors are: - Transformer factory (ZTR), OJSC, Zaporozhye, Ukraine - Electro-technical factory, OJSC, Ramenskoye, Moscow Region, Russia - All-Russian electro-technical institute, State Enterprise, Moscow, Russia - Expending Edge LLC, San Anselmo, California, USA

ELUR/CERC is a laureate of Russian government award for science and technologyin 2003 (development, manufacture and maintenance arrangement of controllableelectric reactors).

- Controllable shunt reactors (MCR): RTU 110…500 kV;- Controllable shunt reactors (MCR): RTU 6…35 kV;- Controllable arc-extinguishing (neutral) reactors (MCR): RUOM (ROU) 6…35 kV.

Range of products:Range of products:

JSC “JSC “ELektricheskyELektrichesky UpravlyayemyUpravlyayemy Reactory”(ELURReactory”(ELUR/CERC)/CERC) was established in 2000was established in 2000

JSC “ELUR” JSC “ELUR” –– CERCCERC 11

Midwest ISO- Expanding Edge Seminar, St. Paul, MN – September 16, 2004

1. MCRs are smoothly adjustable inductive resistances controlled by changing themagnetic circuit saturation.2. Application of MCRs instead of non-adjustable and stepwise adjustable reactorsis expedient in electric networks mains with a variable load shedule.3. MCRs combined with condenser bank capacitors act as synchronous and staticthyristor compensators. 4. Structural diagram: 5. The main adjustment characteristics:

CT VT

~Un

Хn

CB MCR

Phasecurrent

Phase voltage

Error signal

Controllable Shunt Reactors (MCR)Controllable Shunt Reactors (MCR) 22


Schematic Typical modesdiagram of the phase: III. Maximum mode (full-

period saturation) IHV = 1,3In ; Ic ≈ 2In

II. Nominal mode (semiperiodicsaturation)

IHV = Ic = In

I. No-load operation(non-saturated mode) IHV = Ic ≈ 0

Phase current IHV

Control current Ic

Phase voltage UHV Control voltage Uc

Magnetic fluxes Ф, Ф2

Фs

- Фs

I II III I

iHV

ic

Ф Ф2

UHV

Uc

Uc = (0,01…0,03)UHV

τ = (0,1…1) sec

iω

Principle of operationPrinciple of operation 33


a) I distortion ≤ 0.04In

a)

b) Qph = (0.03…0.05)Qn;

I distortion ≤ 0.02In b)

a1 b1 c1

a1 b1 c1 LfCf1

А B C 0

HV winding

a)

I∆

Control winding

Phase current HV

Current I∆

Phase current HV

Current I∆

Schematic diagram of MCRSchematic diagram of MCR 44

А B C 0

HV

b)

I∆

Control winding


Basic technical specifications:Basic technical specifications:1. Rated voltage 525/√3 kV2. Rated power 60 MVAr3. Power variation range 0.2…81 MVAr4. Time of power change 0.3 sec5. Losses: -no-load loss 90 kW

-nominal loss 465 kW6. Control power 1.8 MVA7.Total weight 138 tons

A phase of the controllable reactor RODTsU-60/525/A phase of the controllable reactor RODTsU-60/525/√√33mmountedounted inin 1989 1989 onon thethe ““BelyBely R Ruustst”” substationsubstation, Russian Federation, Russian Federation

Customer’s (Customer’s (““DalnyDalny elektroperedachielektroperedachi””) conclusion is,) conclusion is,“The sample has successfully passed the tests and can be accepted as a base for a pilot model.”

PurposePurpose::Network tests (adjustment, dynamic, vibration and noisetests, current nonlinear distortion, resonance events).

A phase of A phase of 180/500180/500 MCR MCR 55


3-phase controllable reactor 25 MVAr, 110 kV mounted on“Kudymkar” substation, Russian Federation, 1999

Basic technical specifications:Basic technical specifications:• Rated voltage 121 kV• Rated power 25 MVAr• Power variation range 0.25…30 MVAr• Time of power change 2.0 sec• Losses:no-load loss 25 kWnominal loss 200 kW6.Control power 160 KVA7.Upper harmonics in current < 4%8.Total weight 69 tons

CustomerCustomer’’s (UES of Russia) s (UES of Russia) conclussionconclussion (on results of panel discussion at the (on results of panel discussion at the reacrtorreacrtor installation site) is that: installation site) is that: 1.Voltage deviations are limited by ±1.5%. 2. On peak load the power loss in the adjoining network is reduced to 2.5 MW. 3. Due to the increased transmission capacity the projecting of additional 220 kV power transmission line for this region can be postponed.

PurposePurpose::Being coupled with Shunt Condenser Bank (SCB) of 42MVAr it provides voltage stabilization in connection point,optimization of reactive power flows in the adjacentnetwork.

25/11025/110 MCR MCR 6 6


3-phase controllable reactor 100 MVAr, 220 kVmounted on the “Chita” substation, Russian Federation, 2002

Basic technical specificationsBasic technical specifications::• Rated voltage 220 kV• Rated power 100 MVAr• Power variation range -2.5…113 MVAr• Time of power change 0.4 sec• Losses:no-load loss 87.7 kWnominal loss 558 kW6. Control power 1 MVA7. Upper harmonics in current <2%8. Total weight 183 tons

CustomerCustomer’’s (UES of Russia) conclusions (UES of Russia) conclusion ( (of scientific and technical council, clause 2, ofof scientific and technical council, clause 2, ofDecember 29, 2003December 29, 2003)) is, is,“To recommend Federal Network Company of Unified Energy System, JSC using the similarcontrollable shunt reactors (MCR) in 110—330 kV networks”.

PurposePurpose::Voltage stabilization in the connection point,generator relief from the reactive power.

100/220100/220 MCR MCR 7 7


3-phase controllable reactor 180 3-phase controllable reactor 180 MVArMVAr, 330 kV m, 330 kV mountedounted onon thethe““BaranovichiBaranovichi”” substationsubstation, , Belarus, 2003Belarus, 2003

Basic technical specificationsBasic technical specifications::• Rated voltage 347 kV• Rated power 180 MVAr• Power variation range -5…195 MVAr• Time of power change 0.7 sec• Losses:-no-load loss 138 kW-nominal loss 753 kW6.Control power 1 MVA7.Upper harmonics

in current <2%8.Total weight 320 tons

Preliminary conclusion of the customerPreliminary conclusion of the customer (technical board of “(technical board of “BelenergoproektBelenergoproekt””)) is, is,“To recommend “Belenergo” using only MCR in 330 kV networks”.

PurposePurpose::

Voltage stabilization, generator relief from thereactive power.

180/330180/330 MCR MCR 8 8


Measurement sheet of MCR operationMeasurement sheet of MCR operation 25/110 25/110 MCRMCR “ “KudymkarKudymkar” substation” substation 180/330 MCR “ 180/330 MCR “BaranovichiBaranovichi” substation” substation

Automatic modeAutomatic mode 9 9

Bus voltage and RTU current graph for automatic operation of the reactor

0

20

40

60

80

100

120

140

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

time of day

volta

ge, k

V, re

acto

r cur

rent

, A

Ряд1Ряд2

Daily time -s he e t o f ope ration in automatic vo ltage s tabilization c ondition (the graph starts a t 18:30 7/09 2003)

40

90

140

190

240

290

340

390

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63

Time of ope ration (min), c he c kpoint e ve ry 20 minute s

Ubu

s330

кV

(кV

), Iсо

reac

tor

(А)

U bus 330 кV Iсо reactor

Voltage Current


0

50

100

150

200

250

300

0 500 1000 1500 2000 2500

I dist (A)

25

20

15

10

5

I dist (A)

I ph

I dist (without filters)

I dist (full graph)

Biasing current Fig.4. The diagram illustrates the article by Bryantsev A. M. “Network tests… of a 100 MVA 220 kV reactor”

Regulation curves

Static performanceStatic performance 10 10

Voltage Current distortion

Control current

110/220 MCR, «Chita» substation

1

3

2

1 – phase effectivecurrent

2 – phase distortioncurrent

3 – phase distortioncurrent, filters switchedoff


Dynamic performanceDynamic performance 11 11

Совместное включение конденсаторной батареи (БСК) и УШР на п/ст «Кудымкар» с предварительным подмагничиванием реактора. Сверху вниз : три фазных тока реактора, выходное напряжение ТМП, ток подмагничивания в ОУ, напряжение управления СУРЗА, ток фа-зы В батареи, суммарный ток присоединения в фазе В, фазный ток ТМП со стороны 10 кВ.

The maximum rate of current change in normalmode, 110/220 MCR “Chita” substation

Phase currents of the 25/110 MCR “Kudymkar”substation when connected to the network

1 – network voltage

2 – phase currents

3 – control current

1

2

3

1

2

3

2а1

2b2c


Principal electric diagram: Equipment configuration:MCRsMCRs of of 110-500 110-500 series series 12 12

Main equipment:

-MCR phases equipped with a semiconductor converter;

-system of automatic control (САУ).

Supplementary equipment:

-switches;

-voltage and current transformers (ТТ`x and ТН, НАМИ);

-neutral reactor (ТМЗ).

Properties of MCR110-500* series:Power, MVA: 32, 63, 100, 180

Voltage, kV: 110, 220, 330, 500*- any combinations of power and voltage are available.


The connection of the reactor to a high-The connection of the reactor to a high-voltage network with the simultaneousvoltage network with the simultaneousadjustment of power consumption:adjustment of power consumption:

Transient processes in normalTransient processes in normalsymmetrical modes:symmetrical modes:

0—1. Power rise from nominal to maximum level; 1—2 Powerdrop; 2—3 Double power forcing; 3—4 Changeover to nominalmode

0 1 2 3 4

Phase current А

Phase current B

Phase current C

Phase voltage

Typical modesTypical modes of MCR operationof MCR operation 1313


TTypicalypical modemodes of MCR operations of MCR operation 1414

Transient processes of a MCR when:

Voltage drops Voltage rises

Ia

Ib

Ic


Technical requirements for 110Technical requirements for 110——550 kV 550 kV MCRsMCRs ( (UES of RussiaUES of Russia))

BASIC: ADDITIONAL:

• The level of consumed power shall be adjustedautomatically or manually within the range of 0.01 upto 1.2 of the rated power with unlimited number ofpossible changes.• Guaranteed rate of smooth power change fromone steady-state value to another shall be 0.3 to 0.5sec.• The effective value of distortion currentconsumed from the network shall be no more than 5% of the nominal current of the major harmonicswithin the full adjustment range.• Nominal mode shall be started faster than 0.02seconds after the reactor has been connected to HVpower network.

5. MCRs shall provide operability in asymmetricalmode and single-phase conditions.

6. MCRs shall have the following properties: fast-response (bellow 0.02 seconds), changeover of aneffective power value to the mode of increasedpower consumption with consequent return to initialstate.

7. Reactors shall provide enhancement of theconsumed current shape with distortion currentreduced to 2% of the major harmonic rated value.

8. MCRs shall provide power take-off at the LVside.

Technical requirementsTechnical requirements 15 15


1. Basic technical and economic features for 110—500 kV CSRs of RTUseries:- Weight index: 1.5—3 kg/kVAr- Power loss index:at no-load mode 0.5—1.0 W/kVAr;at rated mode 4—8 W/kVAr.

2. Performance:- fully automatic operation (without switching operation);- operation and maintenance costs, reliability are similar to those ofconventional shunt reactors.

3. Multifunctional capabilities:- MCR can functionally substitute for conventional shunt reactors,stepwise adjustable reactors and thyristor reactor groups;- MCR combined with bank work as synchronous or thyristorcompensators.- MCRs do not require switching of circuit breakers.

EfficiencyEfficiency 1616


Backlog of orders for MCR in RussiaBacklog of orders for MCR in Russia 17 17

A phase of the controllable reactor RODTsU-A phase of the controllable reactor RODTsU-60/525/60/525/√√3 installed3 installed atat ““BelyBely R Ruustst”” substationsubstation,,Russian FederationRussian Federation

1. 1. MCRsMCRs types which have already been installed or are types which have already been installed or arebeing manufactured:being manufactured:

25 (32) MVAr/110 kV 25 (32) MVAr/110 kV —— 4 units; 4 units;

63 MVAr/110 63 MVAr/110 kVkV —— 1 unit; 1 unit;

100 MVAr/220 100 MVAr/220 kVkV —— 2 units; 2 units;

180 MVAr/330 (500) 180 MVAr/330 (500) kVkV —— 2 units. 2 units.

2. Backlog of future orders:2. Backlog of future orders:

On estimation of UES of Russia, RJSC roughly each oneOn estimation of UES of Russia, RJSC roughly each onein three reactors for 110-550 kV networks shall be ofin three reactors for 110-550 kV networks shall be ofcontrollable type.controllable type.


JSC “ELUR” CERC 1 JSC “ELektrichesky Upravlyayemy Reactory ...

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