MVS Technologies is furnished with a wide variety of electrical testing equipment to verify the operating conditions of electronic components, assemblies and products under various types of environmental conditions. We offer a full turnkey solution for your electrical testing needs and the expertise you require, whether it involves active monitoring as part of a larger test program or stand-alone analysis of a device or system.
Material properties such as resistance, capacitance and inductance can be determined in addition to the electrical parameters of current and voltage.
Insulation Resistance (IR) – Insulation resistance (IR) tests—alternately referred to as Meggers — use DC voltage to calculate the resistivity of insulation in kilohms, megohms, and gigohms. For equipment that runs on lower voltage, IRs generally use DC applications of 250Vdc, 500Vdc or 1,000Vdc. On high-voltage items, voltages of <600V and 2,500Vdc and 5,000Vdc are usually applied. By measuring resistivity, IR testing reveals the condition of insulation that sits between conductive parts—higher resistance means better insulation. While the most ideal result would be infinite resistance, insulators have their imperfections, and leakage currents will ultimately determine set values of resistivity. IR tests are particularly advantageous because DC voltages have no detrimental effects on insulation.
Dielectric Withstand Voltage (AC/DC Hi-pot): – This is an electrical test administered on products and parts to gauge the strength of insulation, which helps determine a product’s potential to run reliably under various conditions. Withstand testing is performed at high voltages of direct or alternating currents at power or resonant frequencies. The test typically lasts for a minute, though the duration—like the voltage rate—can vary depending on the needs of the product. Testing standards vary between switchgear, military devices, high-voltage wires and over-the-counter electronic equipment.