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TOV Modular Voltage Relay Under and overvoltage protection for low and medium voltage industrial installations. Part of a modular system Instantaneous under and overvoltage Time delay under and overvoltage 1/8 standard 19" rack cases available LED indicators and reset button Phase to ground fault detection in isolated neutral systems Trip, auxiliary, power supply alarm Third harmonic filter (single phase) Automatic transfer equipment Automatic control systems Component for complex protection scheme

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TOV Modular Voltage Relay manufactured using techniques to minimize failures TOV relays are undervoltage and overvoltage relays, single phase or three phase, instantaneous or fixed time. Adjustments are made from dip switches located on the front of the relay. The single phase relays may include a filter for third harmonics, as well as the ability to select between overvoltage and undervoltage operation in the same relay. Connection Diagrams (+) ABC A4 GE Power Management Some of the more common undervoltage applications of the TOV relay are: power consumption Drawout case LED indicating...

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TOV Modular Voltage Relay Technical Specifications PROTECTION OPERATING TIMES There are Two Operating Modes: 1. Instantaneous (30 to 50 ms) 2. Time delay 130 ms to 25.6 sec in 100 ms steps The same relay can be used in either mode, or in both modes VOLTAGE RANGES Adjustable Voltage Ranges are available as follows: 20 to 275 VAC 50 to 305 VAC 3 to 65 VAC (only in single phase version) in 1 V steps The Maximum Allowable Continuous Voltages are: 400 AC for the 20 to 275 V and 50 to 305 V ranges 200 VAC for the 3 to 66 V range FREQUENCY RANGE With filter POWER SUPPLY AUXILIARY CIRCUIT VOLTAGE...

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TOV
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