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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Sine Filters
Sine Wave Output Filter Modules provide satisfactorily smoothed sinusoidal waveform with low residual ripple form square waveform with high voltage spikes, present at the output of motor drives.
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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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Grounding Transformers [ZN (Zigzag), ZNyn, YNd(open), Ii0]
Grounding Transformers are designed for providing an artificial neutral point for ungrounded three phase power systems. During the line-to-ground faults, grounding transformers provide an easy path to ground faults to limit the fault currents and transient overvoltages.
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Resistive Load Banks
R Series
Load banks are devices which contain resistive, inductive and/or capacitive loads, apply the load to an electrical power source and dissipate the power of the electrical source. Portable and stationary resistive load banks incorporate as low as 1 kW load step increments for testing small to large generating sets. The fine control resolution ensures accurate load control and power factor targeting adjustments.
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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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Primary Current Injection Testers
Primary Current Injection Tester is designed for testing protective relay and circuit breakers and also testing the turns ratio of current transformers at high variable currents. A test current is injected into the primary side of a system to determine how the system behaves at particular levels of current. This test makes it possible to determine whether the relay will trip and how long the current needs to flow before the trip is initiated.
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LV Iron Core Motor Starting Reactors
Motor starting reactors are used to reduce voltage during starting of large 3 phase motors while limiting inrush currents.
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Neutral Grounding Resistors
NGR
Neutral Grounding Resistors (NGRs) are used to limit the fault current for safety of equipment and personnel in industrial systems.
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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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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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Air Core Test Lab Reactors
Test Laboratory Reactors are designed for high voltage and high power test laboratories. They are designed to withstand the most extreme electrical service conditions during test periods. Design techniques are implemented in accordance with the most demanding service conditions. These reactors are used for various purposes in test laboratories such as current limiting and synthetic testing of circuit breakers, capacitor testing, artificial line simulation etc.
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Combined Load Banks
C-Series
C-series combined load banks are devices which contain resistive and reactive loads, apply the load to an electrical power source and dissipate the power of the electrical power.
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LCL Filters
LCL Type Harmonic Filter Modules are used to filter out the input current harmonics of the Motor Drives having six-pulse diode/thyristor rectifiers, where harmonic current distortion exceeds the limits defined in standards.
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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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Harmonic Filter Resistors
The widespread use of nonlinear loads such as power electronics based equipment and electric arc & ladle melt furnaces all around the world hinder the quality of electric power. One of the most important parameters for defining the power quality is harmonic distortion.
