3-Phase Voltage Unbalance Monitor

 

• Detects Unbalanced Voltages On Wye Connections
• Percent of Unbalance Adjustment
• Automatic Reset
• Can Energize Relay w/ Only 1 Phase and Neutral Connection

 

Description

The Model 2002Y 3-Phase Voltage Unbalance Monitor is designed to continuously monitor a three-phase line with a neutral connection for unbalanced voltage conditions.

This device will only energize the relay if an unbalance exists. Zero volts on all three phases is considered a balanced condition. This allows the Model 2002Y to be used with shunt breakers, so that main power can be restored without resetting breakers.

The solid-state sensing circuit drives an internal electromechanical relay. Indicator lights on the monitor show when the voltage balance is within an acceptable range, when an unbalance exists, and when the relay is actually tripped.

 

Specifications

Model 2002Y–XXX/YYY	2002Y- 69/120	2002Y- 120/208	2002Y- 138/240	2002Y- 220/380	2002Y- 240/415	2002Y- 277/480
Phase-Neutral Voltage	69VAC	120VAC	138VAC	220VAC	240VAC	277VAC
Phase-Phase Voltage	120VAC	208VAC	240VAC	380VAC	415VAC	480VAC
Voltage Range	± 15%	± 15%	± 15%	± 15%	± 15%	± 15%
Frequency	50Hz - 60Hz
Power Consumption (per phase max)	2.0W	2.0W	2.0W	2.0W	2.0W	2.0W
Transient Protection	2500VRMS for 10ms
Repeat Accuracy	± 0.1% (fixed conditions)
Unbalance Adjustment	2% to 10%
Response Time	150ms
Reset Time	Fixed 1 sec
Dropout Time	Adjustable 1 to 20 seconds
Reset Type	Automatic
Dead Band	0.5% max
Contact Rating	DPDT 10 amps at 240VAC resistive
Expected Relay Life	Mech: 10 million operations Elec: 100,000 operations at rated load
Operating Temp	- 20° to +131° F
Humidity Tolerance	0-97% w/o condensation
Mounting	Surface
Enclosure Material	ABS plastic
Weight	10 oz.

Downloads

Document	File Type	File Size	Download
Model 2002Y Datasheet	PDF	286 KB

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17 Raritan Road, Oakland, NJ 07436 | 800-526-5376
Created By: G.Dezines