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 Circuit Breaker Monitoring Capabilities

Breaker State (Open/Closed)

Breaker Timing: Opening & Closing Time (Latch Time); Opening & Closing Travel Time; Arc Time; Interrupting Time

Opening & Closing Travel Velocity

Operations Coun: Fault-Interrupt Count; Non-Fault-Interrupt Count

Days Since Last Operation

Trip & Close Coil Circuit Integrity

Charging Motor Current Draw & Run Time

Contact Wear & Restrike Detection

Circuit Breaker Monitoring Reporting

2-Hour Current Log (5000 Records – FIFO): Min., Max., & Average Current

Event History (5000 Records – FIFO): Opening Coil (1 or 2); Timing Measurements; Opening & Closing; Velocity; Peak Fault Current; Alarm Status for Each Operation; Contact Wear for Each Operation; Accumulated Contact Wear

SF6 Gas Monitoring Capabilities

Gas Density

Gas Pressure

Gas Temperature

Leakage Trend & Confidence Level

Forecasts Days until Low Gas Alarm

SF6 Gas Monitoring Reporting

Daily Average (750 Records – FIFO): Pressure, density, temperature & SF6 mass

2-Hour History Log (5000 Records – FIFO): Pressure, density, temperature

Sensor Types Supported

SF6 Gas Density, Temperature, Pressure

SF6 Gas Dew Point

Generic AC/DC Voltage & Current

Generic (Hydraulic, Air) Pressure

Generic Temperature

Tank Heaters (UPSM-241)

Analog: 4-20mA (Loop-Powered)

Digital: Frequency/Pulse-Width Modulated

Environmental:

Operating Temperature: -40 to 65° C

Storage Temperature: -40 to 65° C

Humidity: 0 to 95% Non-condensing

Communications:

RS-485 Full/Half Duplex

Ethernet

Fiber-optic (OM3D-F Model Only)

Relay Output: Dry Contact; 1 ea. Form C

Relay Contact Rating:

N.O: 5 Amps @ 250 VAC or 3 Amps @30 VDC

N.C: 2 Amps @ 250 VAC or 1 Amp @ 30 VDC

Relay Contact Fuses: 3.15 A Slow-Blow

Power Supply Input Voltage: 110-250 VDC / 90-264 VAC, 50 / 60 Hz

Power Consumption: 60VA Maximum

Power Supply Input Fuses: 3.15 A Slow-Blow

Aux Input Voltage: 0 to 48 - 250 VDC

Aux Input Fuses: ¼ A Fast-Blow

Aux Input Impedance: 540K Ohms

CT Pickup Coil Input Signal: 0 to 5 VAC

Input Sampling Rate: 32 Samples per line cycle

Sensor Signal:

Analog: 4 to 20 mA

Digital: Frequency & Pulse-Width Modulated

Sensor Power: 20 VDC @ 25mA Max

Analog Sensor Accuracy: +/-1% of Full-Scale Max, +/-0.5% Typ.

Dimensions: 280 mm L x 70 mm W x 143 mm H

Datasheet

Manual

Brochure