Static VAR Compensator

Product IntroductionSVG Module and Cabinet Solutions According to cable terminal type, a modular SVG can be divided into two types: Drawer type modular SVG (adding pluggable accessories on power cable terminals) Mixed fixed type modular SVG(Power cables are fixed from rear side, Signal cables are fixed from front side.) HMI has two types: 7 HMI 10 HMI SVG modules and HMI panel can be embedded in Delta s standard SVG cabinet or a customized cabinet. There are breakers, cable terminals and Surge Protection Device (SPD) in the SVG cabinet. Delta can supply IP30, IP42, IP54 or customized solutions. Features Benefits Multifunctional: Reactive power, imbalance and part of Harmonic compensation Excellent reactive compensation: High speed, Precise (-0.99 Cos 0.99), Step-less, Bi-directional (capacitive and inductance) compensation Excellent imbalance correction: Both negative and zero sequence, mitigates neutral current Harmonic Elimination Range: 2nd~25th order (Selectable) Harmonic current capacity: 20% of rated current, 100 kvar SVG can output 30A H2-H25 harmonic compensation current Wide input voltage frequency range, adapts to tough electrical environment Low thermal loss and high efficiency High stability: Infinite impedance to grid, avoids harmonic resonance problem Flexible application: Modular design, embedded in standard or customized cabinet Easy installation and maintenance: Easy installation for SVG module replacement and expansion Wide capacity range: 25~700 kvar for a single cabinet, up to 10 cabinets in parallel Environmental adaptability: -10~55 C temperature, compatible with diesel generators Complete protection: Grid over/under voltage, SVG over current, over temperature, and others. All faults recorded in event log, convenient for failure analysis Waveform display function on HMI: Display waveform of input Voltage, Grid current, Load current and SVG current Display Harmonic current Histogram on HMI: Grid harmonic current and load harmonic current CTs reversal auto correction can be setted on HMI, support grid side or load side current detection

Static Var Compensator

The STATCOM is an electronically generated three - phase voltage source that is connected to the AC system. When operating as a pure STATCOM the generated voltage is exactly in phase with the AC system voltage. If the generated voltage is greater than the terminal voltage then the device will supply VARs (i.e. is capacitive) to the system. If the internal voltage is less than the terminal voltage, the device will absorb VARS (i.e. is inductive) from the system. The control system of the STATCOM is extremely fast and therefore can rapidly change the magnitude (and phase) of the electronically generated voltage.

Neutral compensator is a three phase specially wound transformer which is installed at the low voltage supply line between phases and neutral i. E. Parallel to the impedances. Neutral compensator due to its magnetic symmetry tries to establish neutral point symmetrical with respect to the phase voltages. The effect in turn equalizes the voltages in all the three phases and reduces the neutral current. reduction of power bill as mentioned, neutral compensator equalizes the voltages and reduces the current flowing through the neutral conductor. This effect reduces power loss considerably as it depends on the square of the current. Further the efficiencies of most of three phase electrical equipment improve resulting in reduced losses and saving of electrical energy. equalization of unequal phase voltages neutral compensator is so designed with a specially wound coil which due to the magnetic symmetry equalizes voltages in all the phases which is quite important for efficient working of equipment and measuring instruments. In practice the difference between unequal phase voltages are typically reduced by approximately 2/3. reduction in cable losses in an unbalanced system of voltages a considerable portion of power gets wasted since large current flows through the neutral conductor. After installation of neutral compensator the voltages get equalized in all the phases, the current in the neutral conductor approaches zero amperes thus reducing losses in the distribution cables. have three phases when only two are available neutral compensator generates the third phase when only two are available. This voltage is of course lower than would have been in the healthy phase, but is good enough to drive your three phase machines of capacity of approximately 12 kw. achievement of better protection after installation of neutral compensator the short circuit currents increase and thus the fuses blow faster in the event of a short circuit. Thus it provides a better protection to sensitive equipment. If current breakers are used instead of fuses neutral compensator reduces their tripping time. avoiding hazards of a neutral break a neutral break causes high voltage to appear in single phase circuits. The phenomenon of burning of chokes of tube lights and filaments of lamps is often observed in daily life. This high voltage may damage costly equipment within fraction of a second. Neutral compensator eliminates this possibility by providing a neutral. In effect the consumer shall have all the three phases with neutral even if the neutral breaks in the supply line.

Product Overview:We offer advanced Static VAR Compensators (SVC) and Static VAR Generators (SVG) engineered for real-time dynamic reactive power compensation, power factor correction, and harmonic mitigation in heavy industrial networks. Utilizing high-speed IGBT-based multilevel inverters and thyristor-controlled reactors (TCR), our systems deliver instantaneous, bi-directional reactive power support to stabilize grid voltage, eliminate flicker, and optimize system capacity without traditional capacitor switching delays. Key Specifications: Product Type: Static VAR Compensator (SVC) / Static VAR Generator (SVG) / STATCOM Panel System Voltage: 415V AC (Low Voltage) up to 33 kV / 132 kV (Medium/High Voltage via step-down coupling) Rated Reactive Power Capacity: Customizable modular configurations (50 kVAR up to several MVAR ratings) Response Time: Ultra-fast response within less than a cycle ( 10 ms for SVG/STATCOM modules) Compensation Mode: Continuous, dynamic, and bi-directional (Inductive and Capacitive) Enclosure Protection: Floor-mounted IP54 / IP55 powder-coated CRCA mild steel enclosure Compliance Standards: Designed and tested in adherence with relevant IS / IEC standards (e.g., IEEE 519 harmonic guidelines) Key Features Advantages: Eliminates transient switching surges, contactor wear, and resonance risks associated with conventional APFC capacitor banks. Provides seamless voltage flicker mitigation and active load balancing in rapidly fluctuating industrial environments. High efficiency with minimal standing losses and robust thermal management for 24/7 continuous operation. Integrated intelligent digital controllers with real-time waveform monitoring, touchscreen HMI, and SCADA compatibility. Applications: Heavy Industrial Plants with Rapidly Fluctuating Loads (Arc Furnaces, Rolling Mills, Cranes) Renewable Energy Integration (Solar and Wind Farm Grid Code Compliance Substations) Mining, Cement Plants, and Large Manufacturing Shopfloors with High Non-Linear Loads Utility Transmission and Distribution Substations Requiring Dynamic Voltage Regulation Packaging Delivery:Securely packed in heavy-duty industrial wooden crates with moisture-proof wrapping and shock-absorbing base pallets. Prompt manufacturing dispatch and technical commissioning support available across India.

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Static VAR compensator

Svc s are part of flexible ac transmission system device family, regulating voltage and stablising the system. The svc is an automated impedance matching device designed to bring the system closer to unity power factor. It is connected to system to regulate the transmission voltage. The main advantage of svc s over mechanically switched compensation schemes is their near instantaneous response to changes in the system voltages. Svc's are tailor made product and designed manufactured as per customer's requirement. Testing is done as per iec/ astm or any other international standard as recommended by the customer.

range upt0 66kv. more details on www.meruspower.fi

Quality Power, along with Endoks Energy systems Turkey undertakes complete turnkey solutions on Static Var Compensation. SVC Systems are reactive power compensation and harmonic filtering systems developed to minimize the disturbing effects caused by fast varying reactive power , voltage variations and harmonics in electric Transmission / distribution system and industrial plants.Switching events, faults, non-linear loads (power semiconductor based systems) and fast variation of active/reactive power demand from grid may lead to disturbing effects on power system. SVC systems are implemented with specific circuit elements by considering the load characteristics and supply conditions. Application Field : Static VAr Compensation (SVC) systems are installed to fulfill the following technical requirements - Dynamic reactive power compensation Flicker reduction Load balancing Mitigation of harmonics Dynamic voltage regulation Increasing the system stability SVC installation reap high economic benefits to following - Distribution systems feeding disturbing loads such as electric arc/ladle furnaces (EAF/LF) and rolling mills. Point of common coupling (PCC) of the renewable energy sources to the transmission-distribution system Distribution systems feeding railway lines Transformer substations feeding critical loads Transmission lines. Economical Benefits to Grids Increase in energy efficiency Increase in the quality of supplied energy of distribution companies. Decrease in the active power losses due to the reactive power flow Increase in the capacity of transmission and distribution systems. Economic Benefits For Iron and Steel Industry Reduces the tap-to-tap time. Increases the transferred active power and production Provides a stable operation by voltage regulation Decreases the electrode consumption Increases the lifetime of the furnace

A Static Var Compensator (SVC) is a fast-acting power electronic device used for dynamic control of voltage in a local area or at an interface point. Our parent company has more than 50 years experience developing reactive power solutions for applications involving fast changing loads. We design, supply, install and commission SVC systems for sectors including power transmission, fusion energy and energy-intensive industry. Today, we have the world s largest installed base of SVCs. Our success is rooted in advanced system capability combined with high-integrity wraparound engineering support.

SVC device is mainly composed of TCR and FC. FC circuit takes account of filtering and provides a stable capacitive reactivepower QFC.TCR circuit changes inductive reactive QTCR of phasedreactor output by controlling thyristor triggering angle . Fig.2 showsthe relationship between triggering angle and reactor basic wave current.Inductive reactive offsetting with capacitive reactive, as long assystem reactive Q=Qload(load need)-QFC+QTCR 0 or constant can bedone, thus it can be achieved that power network power factor equalswith constant and voltage hardly fluctuates.Due to high speed of regulator dynamic response(less than 10ms), reactivepower dynamic compensation can be achieved. Especially for 3phases AC arc furnace load, which can restrain the voltage fluctuationand flickering to the minimum level. Meanwhile it has split-phase adjustment,it can balance the load of 3 phases AC arc furnace and otherdevices, and also restrain negative sequence component of power networkto the minimum level.