Hilkar's accredited in-house High-Power and High-Voltage Test Laboratory performs special, type, and routine testing for power resistors, reactors, special transformers, power quality equipment, testing systems, and other electrotechnical equipment. Testing is performed in accordance with IEC, IEEE, and other national and international standards.
Our laboratory performs more than 250 test types, including short-circuit, lightning impulse, switching impulse, temperature-rise, partial discharge, and ingress protection (IP) tests. These tests verify product performance, safety, and reliability under simulated operating conditions.
In addition to standard testing, we develop customized test programs tailored to specific customer requirements. These programs support product certification, qualification, and compliance with applicable national and international standards.

Main Test Capabilities
High-power, high-voltage, and precision testing to verify electrical, thermal, and mechanical performance under real operating conditions.
- Short Circuit Tests
- up to100kA
- Continuous Power Source for Full-Load Testing
- up to36kV35MW
- Lightning, Switching & Chopping Impulse Tests
- up to1000kV
- High Voltage Tests
- up to500kV50–60–400Hz
- Radio Influence Voltage (R.I.V.) and Partial Discharge Test
- up to500kV
- Test Types & Capabilities
- 250+
Short Circuit Tests
- Short Circuit Test up to 100 kA
High Voltage Tests
- Lightning Impulse Test System up to 1000 kV
- Chopping Impulse Test System up to 1000 kV
- Switching Impulse Test System up to 1000 kV
- High Voltage Test System up to 500 kV 50-60-400 Hz
- Induced Voltage Test System up to 500 kV 50-60-400 Hz
- High Voltage Test System up to 200 kVdc
- Radio Influence Voltage (R.I.V.) Test System up to 500 kV
- Partial Discharge System up to 500 kV
Thermal & Mechanical Tests
- Temperature Rise Test System up to 36 kV 35 MW continuous
- High Current Injection Test System up to 3x35 V 6300 A and up to 4000 A @ 1000 Vdc — Continuous Power Source with Computerized Data Logging
- Ingress Protection (IP) Testing: Solid water jet test
- Impact Resistance (IK) Testing
- Vibration Table and Measurement System
- Hardness Measurement
- Thermal Camera Measurement
Measurement & Analysis
- Impedance Measurement between 20 Hz - 5 MHz
- Electric Field Measurement 0-2000 V/m 0-100 kHz
- Magnetic Field Measurement 0,01...1500 mT (AC), 0,01...3000 mT (DC)
- Sound Level Measurement & Data Logging
- Resistance Measurement by microohmmeter up to 50A
- Insulation Resistance Test
- Capacitive Load Testing up to 15,000 kVAr


Equipment & Standards Tested
Our testing capabilities cover the following equipment and international standards, organized by category.
Power Resistors & Reactors & Transformers
- IEEE C57.32Neutral Grounding Devices
- IEC 60076-25Neutral Grounding Resistors
- IEC 60076 SeriesPower Transformers
- IEEE C57.12.90Power Transformers
- IEC 60353Line Traps
Switchgear & Circuit-Breakers & Fuses
- EN 62271 SeriesAlternating current circuit-breakers, disconnectors and earthing switches, high-voltage switchgear and controlgears
- IEEE C37.09AC High-Voltage Circuit Breakers
- IEC 60282-1High-voltage fuses
Environmental Testing & Enclosure Protection
- EN 60529Degrees of protection provided (IP Code)
- EN 62262Degrees of protection provided (IK Code)
- EN 60068-2-75Environmental testing
- NEMA 250Enclosures for Electrical Equipment
Instrument Transformers
- IEC 61869 SeriesInstrument transformers
- IEEE C57.13Instrument transformers
Insulators & Insulation & Surge Arresters
- IEC 60660Post Insulators of Organic Material
- IEC 60168Post Insulators of Ceramic Material
- IEEE C29.1Electrical Power Insulators
- IEC 60137Insulated Bushings
- IEEE C57.19Insulated Bushings
- IEC 60383 SeriesInsulators for Overhead Lines
- IEC 61111Electrical Insulating Matting
- IEC 60243 SeriesElectric Strength of Insulating Materials
- IEC 60893 SeriesInsulating Materials
- IEC 60099-4Metal-oxide Surge Arresters
- IEEE C62.11Metal-oxide Surge Arresters
Railway Applications
- IEC 60322Railway Applications



