Description
SensorLink’s Qualstik Plus is an excellent survey instrument for locating problem areas for comprehensive testing. It was developed specifically for the measurement of four important items of power quality in the electric utility industry. This live-line power quality meter stores up to nine sets of power quality readings: Current, leading/lagging Power Factor, Total Harmonic Distortion and the Direction of Current Flow.
The current sensor does not use magnetic materials and has no moving parts. The opening of the sensor is electronically closed and external currents are electronically rejected. The Leading/ Lagging True Power Factor is calculated by analyzing the voltage waveform in comparison with the current reported from the amp sensor.
The SensorLink Qualstik Plus is not position sensitive; just slip it over a conductor and touch the electrode on the bottom of the sensor to the line. The current reading is shown on one side of the display, while the power factor and THD readings share the other side. The direction of current fl ow indication shows below the other readings on the display.
The user is able to store up to eight sets of readings. The ability to hold multiple sets of reads ends the need to raise and lower the hotstick after each measurement.
The universal hotstick adapter and internal structure of the Qualstik Plus are made of long glass fiber reinforced thermoplastic polyurethane. This polymer is non-conductive and extra tough to protect the amp sensors. The housing is made of urethane and built to operate safely, even in severe utility environments. It is resistant to shock, water repellent, flame retardant and operates in a wide temperature environment.
The Qualstik Plus is an excellent tool for determining placement of power factor correction devices, survey primary lines for harmonic distortion, as well as identifying other power quality problems.
Distribution engineers use the Qualstik Plus for correctly placing capacitor banks in electric utility systems that maintain integrated, inductive loads. This instrument insures that capacitor banks are placed where they are most efficient.
