Medium Voltage Indicator uses capacitive coupling, earth ground.
September 27, 2010 -
Respectively suited for 2-15 kV and 15-43 kV applications, VoltageVision® R-1VH and R1VL provide safety for workers performing mechanical or electrical maintenance on medium voltage equipment by helping to ensure isolation of electrical energy. Products utilize capacitive coupling with earth ground to complete flashing circuit as well as provide surge immunity and electrical installation integrity. Amount of energy transferred to indicator determines flash rate and intensity.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Grace Engineered Products, Inc.
5000 Tremont Ave Ste 203
Davenport, IA, 52807
USA
New Medium Voltage Indicator
(Davenport, Iowa) Known for their products that increase employee productivity and promote compliance to NFPA 70E, Grace Engineered Products announces the release of its newest innovation - The Medium Voltage Indicator.
The VoltageVision® R-1VH / R1VL Medium Voltage Indicator increases safety for workers performing mechanical or electrical maintenance on medium voltage equipment by helping to ensure isolation of electrical energy. These indicators flash with enough illumination to allow safe viewing from outside the enclosure through an access or inferred window on a medium voltage starter, transformer, switchgear and other power distribution equipment.
Built for long-life and reliability with solid-state LEDs and flame-rated material, the Medium Voltage Indicators are available in packages of 3 (one per phase) in two voltage categories. Capacitive coupling between the Medium Voltage Indicators and earth ground provide a means of completing the flashing circuit without a hardwired ground connection, which provides enough energy to flash the LEDs. Capacitive coupling also provides high surge immunity and electrical installation integrity. The amount of energy transferred to the Medium Voltage Indicator through capacitive coupling varies, and therefore determines its flash rate and intensity. The key factors include the line voltage, the distance between the adjoining phases, and the size and distance of the ground plane (enclosure or other). Because of this, the Medium Voltage Indicator with a flash rate optimized for applications on voltages between 2KV and 15KV are sold under the part number R-1VL. The Medium Voltage Indicator optimized for applications on voltages between 15KV and 43KV are sold under the part number R-1VH.
The Medium Voltage Indicator is sold in packages of three for $270 list price. To view the data sheet, please click here.
Grace Engineered Products is the leading innovator of thru-door electrical safety devices, and ships products all over the world including Asia, Australia, Europe, and North and South America. GracePort®, their brand of PLC ports, has revolutionized the automation industry by allowing customers to custom-design their port to meet their specific needs. Their ability to provide the customer with exactly what they need and ship 90% of their orders within 24 hours of receiving the purchase request means they live up to their motto of being the easiest company with which you can do business. Grace Engineered Products is a privately owned company and located in Davenport, Iowa.
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