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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Product
Harmonic Filter Resistors
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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.
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Product
Grounding Transformers [ZN (Zigzag), ZNyn, YNd(open), Ii0]
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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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Product
LCL Filters
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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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Product
Motor Starting & Control Resistors
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Motor Starting Resistors are used to reduce the voltage at the motor terminals and also decrease the starting current. Motor Starting Resistors are necessary because the self resistance of a motor armature is very low. When the voltage is first applied, excessive current will flow. For limiting this current, since there will be no resisting back electromotive force (emf),some series resistance can be added to the armature windings.
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Product
Neutral Grounding Resistors
NGR
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Neutral Grounding Resistors (NGRs) are used to limit the fault current for safety of equipment and personnel in industrial systems.
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Product
Air Core Motor Starting Reactors
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Motor starting reactors are used to reduce voltage during starting of large 3 phase motors while limiting inrush currents.
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Product
LV Iron Core Motor Starting Reactors
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Motor starting reactors are used to reduce voltage during starting of large 3 phase motors while limiting inrush currents.
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Product
Radiator Mounted Load Banks
RD-Series
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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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Product
Dynamic Braking Resistors
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Speed of three phase asynchronous squirrel-cage motors and three phase synchronous motors are generally controlled by motor drives where frequency of the drive output determines the motor speed, and it can be adjusted without dependence on the voltage magnitude.
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Product
Primary Current Injection Testers
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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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Product
Generator Neutral Grounding & Leads Cubicles
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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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Product
Air Core Current Limiting Reactors
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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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Product
High Resistance Neutral Grounding Devices
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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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Product
Turn-Key Short Circuit Laboratories
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For low and medium voltage switchgear including :*Circuit breakers*Contactors*Disconnect switches*Fuses*Miniature circuit breakersApplied tests for low and medium voltage switchgear :*Dielectric withstand test*Impulse withstand test*Breaking capacity test*Mechanical life testElectrical life test*Over load performance test*Short circuit breaking capacity test**Short time short circuit impulse current test*Temperature rise test*Operation performance testTests for low & medium voltage panels :*Short time short circuit impulse current test*Dielectric test*Impulse withstand voltage test*Temperature rise test
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Product
Reduced Voltage Motor Starting Panels by Reactors
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A method to limit motor starting current is a series reactor. Iron core or air core reactors can be used for starting purposes. If an air core is used for the series reactor then a very efficient and reliable soft starter can be designed which is more suitable for high MW ratings of synchronous/induction motors at MV levels. The reactors are designed with taps.
