Ensure that proper protection is built into your electronic equipment with tests for protective relays and other control devices. We use the surge tested and the electrical fast transient generator to ensure compliance. We can impose a 4 kV, 1.2/50 us and 0.1/50 us impulse on particular circuits of deenergized equipment that qualify. The test voltage is directly coupled onto the circuit under test in both common and transverse modes with positive and negative polarities. At 4 kV, the energy delivered by this test is about 2 joules. For other applications, voltage and energy capability can be extended to 12 kV and 19 joules, respectively.

• Surge Tester (IEEE C62.41, UL 1449): The surge tester is used to test the susceptibility of ac-powered equipment to transients that are relatively high in energy, originating from sources such as lightning or other high-energy discharge sources. Test levels are determined based on environmental exposure criteria for equipment powered at 120 Vac and above.
• Electrical Fast Transient (EFT) Generator (IEC 1000-4-4): The EFT Generator is used to simulate fast rise time, repetitive transients that are typically produced by inductive switching, arcing contacts or faults. Equipment-specific coupling devices are available.