Adres: UZAYÇAĞI CAD. 1 33
Tel 1: 0 (312) 354 19-03
Faks: 0 (312) 354 19-05
Email 1: info@selkonenerji.com.tr
Email 2: serdar_k81@hotmail.com
Web: http://www.selkonenerji.com.tr/
Features of Smart SVC System
Relay Models
1) Smart 12CL - COM
2) Smart SVC12C3L - COM
General Information
Smart SVC12C3L is a new generation compensation relay. Contrary to conventional compensation relays, it does not try to respond to the system by using only capacitor stages, but also activates it by adjusting the powers of the coils (shunt reactor) that provide inductive load. In this way, it responds to the system much faster and more fully than conventional relays.
Since classical relays have a certain number of capacitors, they cannot fully meet all the reactive powers required by the system, it only tries to find the closest possible value. In addition, since the switching is made by means of mechanical contactors, its ability to respond to fast in and out loads is limited. Smart SVC, on the other hand, fully meets the needs of the system by opening its inductive coils at the desired power for each phase. Since the switching is done with thyristors, the response time to the system is very short. Thanks to this method, Smart SVC can easily compensate the system even in enterprises where conventional compensation relays are difficult.
Technicial Specifications
Businesses that need high power need to take 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 the enterprises where the meter is on the medium voltage side, in case of high power consumption, the compensation made on the low voltage side is sufficient to solve the reactive problem. However, in cases where the active consumption decreases, the compensation made by the low voltage cannot prevent the enterprise from penalizing.
At the root of this problem
Smart SVC – MV compensation relay has been developed as a result of experience and long efforts in the fields to solve this problem. The MV relay receives current information from 3 current transformers on the medium voltage side or to be newly installed. Voltage information is taken by the low voltage side and the power of each phase is measured independently, taking into account the phase angle difference. As a result of this measurement, the relay produces a solution on the low voltage side of the system by using both the existing stages and the SVC outputs.
After the application, as a result of the observations to be made from the counter and the relay, the reactive problem can be completely eliminated by making precise adjustments on the phases. It is also very useful to see the Cos fi values or reactive powers of each phase on the meter screen on the medium voltage side.
Technicial Specifications
4) Smart SVC12C3L - FAST
General Information
It is a special solution that can be applied for systems where loads are variable and phase differences are different and fluctuate relatively fast and with low amplitude. The response time of the reactors in this solution is 20 ms. In such systems, by using the advantage of SVC, both the system will be responded quickly and a more cost-effective solution will emerge. In such systems, it is more appropriate to use thyristor switched modules (See SVC22CL)
Technicial Specifications
5) Smart SVC18C3L - TRI
General Information
In unstable businesses where reactive changes are fast and large, systems with contactors are insufficient to respond to the need for compensation. In the compensation of such enterprises, it is possible to respond to rapidly changing loads by switching with thyristor instead of switching with mechanical contactors in classical systems. In addition, when the capacitors are commissioned for the first time, since the current drawn is minimum, it is possible to switch on and off at a high speed. With this system, the life of the capacitor and switching elements is extended and the power quality is positively affected. In addition, maintenance costs are minimized. The system can operate in both binary mode and normal mode, depending on the power of the connected capacitors. If the capacitor arrangement is made in such a way that each step is 2 times the previous step, the system is considered as binary. In binary mode, capacitor selection is done much faster. If desired, the system that will be created without a binary sequencing in this way accepts the relay as normal mode and produces a solution accordingly. The system detects the load change in 10 ms and makes it possible to switch within the next 10 ms. At the first zero crossing after the switching signal, the capacitor is activated (<20 ms). In this way, the response rate of the system is pulled up to 50 ms.
Technicial Specifications
Usage areas
6) Smart SVC22CL - TRI
General Information
In unstable businesses where reactive changes are fast and large, systems with contactors are insufficient to respond to the need for compensation. In the compensation of such enterprises, it is possible to respond to rapidly changing loads by switching with thyristor instead of switching with mechanical contactors in classical systems. In thyristor systems, since the capacitors are activated at zero crossings, the necessity of waiting for discharge times is eliminated. In addition, when the capacitors are activated for the first time, since the current drawn is minimum, it is possible to switch on and off at a high speed. With this system, the life of the capacitor and switching elements is extended and the power quality is positively affected. In addition, maintenance costs are minimized. The system can operate in both binary mode and normal mode depending on the power of the connected capacitors. If the capacitor arrangement is made in such a way that each step is 2 times the previous step, the system is considered as binary. In binary mode, capacitor selection is done much faster. If desired, the system that will be created without a binary sequence in this way, the relay accepts as normal mode and produces a solution accordingly. The system detects the load change in 10 ms and makes it possible to switch within the next 10 ms. At the first zero crossing after the switching signal, the capacitor is activated (<20 ms). In this way, the response rate of the system is pulled up to 50 ms.
Technicial Specifications
Usage areas