PROMOTION BROCHURE

Innovative Solutions in

Reactive Power Compensation and

Energy E�iciency

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New Generation Compensation System

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Smart SVC SystemWhat is Smart SVC System? Smart SVC is a new generation compensation system developed on the basis of the fact that classical

compensation made with capacitor and reactor stages cannot fully respond to load requirements in today's

enterprises where capacitive characteristic and fast changing reactive loads are increased.

The system consists of 3 main components.

(1) SVC-capable relay, which can activate the capacitors and shunt reactors in the normal range via contactors and

control the monophase shunt reactors in each phase of the SVC step with a sensitivity of 1/1000

(2) 3 monophase shunt reactors, one for each phase

(3) A thyristor inductive load driver capable of driving the shunt reactors at desired powers.

Smart SVC does not attempt to respond to the system using only capacitor stages, as in conventional

compensation systems. At the same time, with the help of a thyristor inductive load driver, the power of the

single-phase shunt reactors is activated by adjusting each phase independently. Since switching in conventional

systems is done by mechanical contactors, its ability to respond to fast changing loads is limited. Since the Smart

SVC uses a thyristor inductive load drive for switching, it can meet the load requirement in 20 ms.

Smart SVC can respond to both capacitive and inductive load requirements by combining the response flexibility

obtained from adjustable single-phase shunt reactors with capacitor stages. Smart SVC is preferred in order to avoid

reactive energy problems when we consider load imbalances and rapid load changes in the enterprises.

1

New Generation Compensation System

How Does the Smart SVC System Work? The Smart SVC relay measures and analyzes all electrical parameters of the system very quickly and precisely

with its 24-bit resolution power measurement integrated. It determines exactly the reactive (inductive / capacitive)

power required by each phase and adjusts the power of the shunt reactor connected to the related phase

accordingly. In this way, the reactive power needs of the system are fully answered. As can be seen in Figure-2,

even when the classical relays give the best response with the existing capacitors, there are still di�erences

between the reactive power requirement of the system and the total step power.

These di�erences accumulate over time, especially in fast systems, leading to higher reactive rates. As a solution,

the Smart SVC relay achieves the capacitive load requirement of the system using its own capacitor stages.

The remaining capacitive di�erences are fully compensated by adjusting the power of the shunt reactors. The

compensation capability of the Smart SVC system is shown in Figure-3.

Figure-1 Smart SVC general scheme of the systems Figure-2 Compensation with classic relay

Res�dual capac�t�ve power cleaned by SVC

Figure-3 Compensation with Smart SVC

Smart SVC System Features Fast and complete solution for fast changing loads

Uninterrupted and complete solution to variable capacitive loads

Fast response time down to 20 ms

Precise solution even under small loads thanks to 3 mA detection current

Use of fewer steps (capacitor, reactor, contactor, fuse…)

Compensation with current step values continuously thanks to automatic step test

No use of small-value single-phase capacitor / reactor for unbalanced loads

Longer capacitor and contactor life due to step changes

Rates well below reactive limits, target “0” inductive and capacitive values

Optimum values in panel labor and maintenance costs

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Current Transformers

Contactor

Capacitor

ShuntReactor

L1 Output

InductiveLoad Driver

Power Power

Time

Stage power in curcuitReactive power requirement of the system

Stage power in curcuit (SVC)Reactive power requirement of the system

Tyhristor

New Generation Compensation System

SVC System Application AreasEnterprises with Unbalanced or Capacitive Loads They are the enterprises where the variable and phase distributions of the loads are not equal and the machine

equipment producing capacitive load is weighted. In unbalanced load plants, as the number of single-phase stages

to be used to eliminate the di�erence between phases increases, the number of stages in the existing reactive

power control relay is not su�icient and the reactive energy needs of the plant cannot be fully met. On the other

hand, in today's enterprises, devices such as inverter air conditioner systems that produce capacitive load, energy

saving and LED lighting systems and uninterruptible power supplies have become more and more common. In order

to meet the reactive energy needs of such enterprises, inductive loads (shunt reactors) must be added to the

compensation system. In case of attempting to add shunt reactor stages such as normal capacitor stage, panel

dimensions increase in excess and the investment costs to the operation increase considerably.

Thanks to the step flexibility provided by each of the independent single-phase shunt reactors in the Smart SVC

system, a more cost-e�ective, complete and precise solution is produced for all these problems. The size of the

inductive load driver and monophase shunt reactor to be used in the SVC system which is considered to be used in

the enterprise varies according to the inductive load requirement and load unbalance of the enterprise.

Usage AreasPetrol StationsHospitalsLift SystemsOfficesSocial Facilities

BanksSupermarketsSchoolsPublic BuildingsMalls

Products to be usedReactive Power Controller Relays SMART S12 SMART S18 RKR NT-S12

SVC 5 SVC 10 SVC 20 SVC 30

SVC Drivers

Single-Phase Shunt ReactorsSRM 1.0SRM 1.5SRM 3.0

SRM 5.0SRM 7.5SRM 10.0

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New Generation Compensation System

Enterprises with Balanced and Fixed Loads All of our Smart SVC reactive power control relays can also be used as conventional relays without the SVC system

and can respond to fixed-load installations. The communication port is a standard in all of our classic relays, and

thanks to the 3 mA sensing current, it becomes possible to provide e�ective solutions in enterprises with high

current transformer ratio. Furthermore, the Power Flow Graph, which records the reactive energy needs of the

enterprise and gives us information about how the application should be, provides solutions to our customers in our

classic relays.

Enterprises with Fast Loads It is not possible to respond to fast variable loads by switching with mechanical contactors in conventional

systems. Such enterprises can only be answered by thyristor switching. In thyristor systems, since the capacitors

are activated at zero crossings, the requirement to wait for discharge periods is eliminated. In addition, it is possible

to start and remove the capacitors at a high speed since the current drawn when the capacitors are first

commissioned is minimum. Thus, the life and power quality of the capacitors and switching elements are positively

a�ected. In addition, panel maintenance costs are minimized.

The system can operate in both binary mode and normal mode according to the capacitors' capacities connected

to the stages.

The relay operates in binary mode if the capacitor arrangement is made twice each step of the previous step. In

binary mode, the capacitor selection is done much faster. If no sequence is made in this way or if binary mode has

been exited due to the loss of capacitors over time, the device will operate in normal mode

continues. For very fast systems of this type, it is possible to detect the load change in 10 ms and switch in the next

10 ms. At the first zero crossing after the switching signal, the capacitor is activated. In this way, the response

speed of the system can be reduced up to 20 ms.

Usage Areas CNC Machine tools Lathe leveling workshops Workshops with press, spot andwelding machines Lift Systems

Soon..

Products to be usedReactive Power Controller Relays SVC Drivers

SMART S18-TSMART 22-T

KSK 15T2KSK 25T2KSK 80T2

KSK 10T3KSK 20T3KSK 50T2KSK 100T2

Static Contactors

SVC 20 SVC 30SVC 5 SVC 10

Single-Phase Shunt ReactorsSRM 1.5SRM 3.0SRM 5.0

SRM 7.5SRM 10.0

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New Generation Compensation System

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Medium Voltage Subscribers The enterprises where the meter measures from medium voltage are di�erent than those of low voltage systems.

This type of enterprises, which require high power, should take the power transformers into their own structure. In

this case, depending on the magnitude of the power, the electricity meter is placed on the medium voltage side. In

MV plants, in case of high power consumption, conventional compensation systems on the low voltage side are

su�icient to solve the reactive problem. However, in cases where the active consumption is low and the transformer

is idle, the compensation made in the low voltage side cannot prevent the entity from paying reactive costs.

The reasons behind this problem are;

The inductive e�ect of the transformer cannot be adjusted according to the changing current

Inadequate measuring and response accuracy of compensation designed for high power

Inadequate accuracy of measurement transformers and other measuring equipment at low currents

The phase imbalance observed in the idle transformer creates reactive energy disturbance in both inductive and

capacitive directions on the medium voltage side

Presence of long electric cables between the meter and transformer

Smart SVC medium voltage compensation system is a new system where current measurement is taken from

medium voltage and the compensation relay, capacitors and shunt reactors are located on the low voltage side.

Smart SVC-OG compensation system has been developed as a result of the experience and long e�orts in the field

in order to solve the aforementioned problems. The Smart SVC-OG relay takes the current measurement from 3

current transformers on the medium voltage side or to be installed, and the voltage measurement from the low

voltage side. The power of each phase is measured independently, taking into account the phase angle di�erence.

As a result of this measurement, the relay uses both current stages and SVC outputs to produce a low voltage

solution to the system. As a result of the observations to be made from the meter and relay after the application,

the reactive problem can be completely eliminated by making fine adjustments on the phases.

New Generation Compensation System

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Smart SVC MV Systems can produce solutions that eliminate the fixed capacitor problem, whether the transformer

is at load or no load. In both cases it uses the same current transformers and stages. Thanks to the measurement

and response accuracy, it does not require a second current transformer group and a second step group.

In solar power plants, consumption caused by internal needs leads to reactive energy use during production. The

low active consumption due to the equipment used results in the reactive energy limit being exceeded. Smart SVC

MV relays monitor the production-consumption status and fully compensate the reactive energy generated.

Products to be usedReactive Power Controller Relays

SVC Drivers Single-Phase Shunt ReactorsSRM 10.0SRM 7.5

SMART OGX SMART SOGXSMART GESX

SVC 20 SVC 30

Usage Areas Sbuscribers whose meters are measuringat MV Solar power plants

MV CONNECTION DIAGRAM

Toro�dal Current Transformers

Step S�gnals

Step

s

SVC Tr�gger S�gnals

OG XLPE Cable

MV LV

L1

L2

L3

N

SMART SOG1

SVC 30

SRM 10.0 SRM 10.0 SRM 10.0

New Generation Compensation System

Ground�ng Busbar

GRUP ARGE ENERJİ ve KONTROL SİSTEMLERİ SAN. ve TİC. LTD. ŞTİ.İkitelli OSB Mah. YTÜ İkitelli Teknopark Sok.

No: 1/2B1-2B7-2B8-2B9 Başakşehir / İstanbulTel: 0212 438 80 24 (pbx) Fax: 0212 438 80 25

E-Mail: info@gruparge.com

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