Silicon controlled rectifier speed drives; the drilling rig top drives used for controlling the speed of the drill string; and traction motors; all for use in oil, gas and chemical exploration on gas and oil drilling rigs and in electrical power co-generation and other industrial and commercial electrical power, instrumentation and control systems

Electrical power, instrumentation and control equipment, namely, low and medium voltage metal clad and metal enclosed switchgear, arc resistant switchgear, motor control centers, motor starters, circuit breakers, disconnect switches both fused and unfused, generator controls, low and medium voltage bus ducts; drilling rig control systems used for monitoring different functions of drilling rig operations, monitoring and control apparatus for monitoring hazardous conditions and shutting down electrical and mechanical systems when conditions reach pre-determined levels, portable power and control system buildings used for power control and distribution, alternating current drives for power control and distribution, digital and analog direct current drives for power control and distribution, wind power converters, utility grade solar power inversions systems; all for use in the oil, gas and chemical production, distribution and manufacturing industries and on oil and gas drilling rigs and in electrical power co-generation and other industrial and commercial electrical power, instrumentation and control systems; drilling rig automation systems comprising of hardware and software for monitoring and operating oil and gas drilling rig functions; electrical instruments used to control and monitor ballast in offshore drilling rigs and vessels; instruments for monitoring and controlling machinery on vessels; security systems for vessels comprising of hardware and software used to monitor, control and respond to access and usage of locations and equipment aboard vessels

Construction, repair, maintenance and testing of electrical power, instrumentation and control equipment comprised of low and medium voltage metal clad and metal enclosed switchgear, including motor control centers, motor starters, circuit breakers, disconnect switches both fused and unfused, silicon controlled rectifier speed drives, drilling rig top drives, generator controls, drilling rig control systems, industrial shutdown systems, and traction motors, complete raceway systems, alternating current and direct current variable speed drives, lighting systems, high-voltage cable installation, communication systems, and security systems used in the oil, gas and chemical production, distribution and manufacturing industries, the pulp and paper industries, oil and gas drilling industries, electrical power co-generation and other industrial and commercial electrical power, instrumentation and control systems