Hilkar
Hilkar, combines extensive research and development with high quality systems in both manufacturing and design processes. In addition to this, an extensive sales organization and experienced customer response have founded. Today, dedicated to serving our customers in Turkey and abroad, Hilkar is one of the main power resistors, reactors, special transformers and motor control and testing systems supplier in the world.
- +90 264 275 5540
- +90 264 275 1276
- hilkar@hilkar.com
- Organize Sanayi Bolgesi 10.Cad. No:9
Arifiye/Sakarya, 54580
Turkiye
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Air Core Harmonic Filter Reactors
Use of nonlinear loads such as power electronics based equipment and electric furnaces have been on the rise for the last decades. Such loads decrease the power quality of the network that they are connected to. One of the most important parameters for defining the power quality is harmonic distortion.
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Radiator Mounted Load Banks
RD-Series
RD-series radiator mounted load banks are designed to be fitted directly onto diesel generator sets. RD-series load banks use the engine cooling air from the generator radiator to cool the load elements.
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LV Iron Core Harmonic Filters
Nonlinear loads such as power electronics based equipment and electric furnaces are sources of harmonic currents leading to harmonic distortion, which is one of the most important parameters for defining the power quality. Most of the commercial loads such as personal computers, photocopy machines, power supplies, and compact fluorescent lamps; and industrial loads such as AC and DC motor drives inject harmonic currents into the network that they are connected to.
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LV Iron Core Line & Load Reactors
Line and load reactors are generally serial-connected to the input and/or output terminals of three phase equipment such as motor speed controllers, inverters and UPS systems. These equipment make use of semiconductor switches such as IGBTs, thyristors, and diodes and therefore create harmonic distortion and high switching over-voltages (dv/dt). Use of such equipment has been becoming more widespread as the technology advances. However, the negative effects of these equipment should not be overlooked.
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Explosion-Proof Heaters
Explosion-Proof Heaters (ATEX certified) provide neutral convection solutions of heating for electrical equipments in hazardous industrial locations where potential for explosion exists due to the presence of flammable gases, vapors, powder-metals or dusts.
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LV Iron Core Shunt Reactors
Iron core Shunt Reactors act as an absorber of reactive power to increase energy efficiency of the power system. Shunt Reactors are used in order to compensate capacitive reactive power generated by long and lightly loaded transmission lines as well as underground cables, thus allowing the flow of more active power through the system and avoiding over voltages. Shunt Reactors can be directly connected to the power line or to a tertiary winding of a three-winding power or distribution transformer.
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Slip-Ring Motor Starting Panels
Rotor Starter
The Slip-Ring Motor Starters are based on the series of resistors that are applied to the rotor circuit to control the speed/torque characteristics of the motor. Rotor starters are mainly used for the motor starting applications requiring high-starting torque like loaded belt conveyors in mining industry. By external resistors, it is possible to shift the motor maximum (break-down) torque up to starting torque point for motors under heavy loads during start-up. The resistors are splitted into some steps and controlled via contactors by motor starting control system. As the motor speed increases, the external rotor resistors are eliminated by shorting contactors until all external resistors are shorted out.
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Generator Neutral Grounding & Leads Cubicles
Generator Neutral Grounding Cubicles are designed to minimize fault damage incurred by generators, maintain sufficient fault detection and improve power system reliability. Generator Neutral Grounding and Lead Cubicles are manufactured as for IEEE or IEC standards.
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Anti-Islanding Load Banks
AI-Series
AI-series anti-islanding load banks containing purely resistive, inductive, or capacitive load, have segmented combination control of power input, and can simulate a variety kinds of power loads to meet the grid-connected inverter full load test requirements.
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Iron Core Current Limiting Reactors
Current Limiting Reactor (CLR) is one of the most effective short circuit current limiting devices. It reduces stresses on busses, insulators, circuit breakers and other high voltage devices. Use of CLR is the most practical and economical approach at current limiting.
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High Resistance Neutral Grounding Devices
HRG systems limit the fault current by placing high resistance between neutral point of transformer (or generator) and ground. As it is not possible to locate the fault point in delta connected systems, an artificial neutral point is created and delta connected system can be grounded. This allows a fault current of a few amperes thus locating the fault point gets easy. When the neutral point is grounded thru high resistance, both continuity of operation is provided during fault condition and sufficient current (typically between 2 A and 10 A) flow is provided for ease of locating the fault point.
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PLC Line Traps
Line Traps are used in transmission and distribution networks and they are the key components in Power Line Carrier (PLC) systems used for remote control signals, voice communication, remote metering and control between substations in the electrical T&D networks.
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Inductive Load Banks
L-Series
L-series inductive load banks are devices which contain inductive loads, apply the load to an electrical power source and dissipate the reactive power of the electrical source. L-series load banks are designed for portable and fixed applications. Hilkar brand L-series load banks have robust design and are specifically designed for corrosive environments. Load banks can be controlled via local, remote, wireless remote or automatic control systems.
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High Current Transformers
High Current Transformer is designed to elevate and check the temperature of the conductors at high current levels, in order to simulate the current loading conditions found in electrical circuits. High Current Transformer is designed as an open type transformer that uses the test object as its secondary coil or has 1 or 2-turn self secondary winding. The conductors cores' temperature depends on the short-circuit high current caused by the test object. According to the current going through the test object, the test temperature of the conductor will change. The loop temperature is measured by a thermocouple probe which is directly connected to conductor.
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Air Core Electric Arc Furnace Reactors
Arc Furnace Reactors are serially connected reactors that are installed in the supply systems of arc furnace transformers to stabilize arc and limit the unstable arc furnace current and voltage drop which optimize their melting process. These buffer reactors are connected in series to the primary side of the furnace transformer. Typically these reactors are tapped coils and manufactured as per customer'stap requirements.
