GE Multilin 239 Motor Protection Relay

Description

The GE Multilin 239 is a motor protection relay designed for precise phase and ground current monitoring with advanced overload protection and trip curve capabilities.

Current Inputs

• Phase Current: True RMS conversion, 16 samples/cycle

• CT Input: 1 A and 5 A secondary

• Measurement Range: 0.1 to 11 × phase CT primary

• Frequency Range: 20 to 300 Hz

• Accuracy: ±2% of full scale

• Ground Current: True RMS conversion, 16 samples/cycle

• CT Input: 5 A secondary and 50:0.025 CT

• Measurement Range:

• 5 A CT: 0.03 to 1.4 × CT primary

• 50:0.025 CT: 0.05 to 16.0 A

• Accuracy:

• ±0.03 A (0 to 0.49 A)

• ±0.07 A (0.50 to 3.99 A)

• ±0.20 A (4.00 to 16.00 A)

• 5 A CT: ±2% of full scale

• 50:0.025 CT:

Overload Trip Characteristics

• Trip Curves: 15 fixed-shape curves

• Overload Pickup Inhibit: Adjustable 1.00 to 5.00 × Full Load Current (FLC)

• Pickup Level Range: 1 to 1500 A

• Accuracy:

• Pickup: ±1% of displayed value

• Trip Time: ±2% of trip time or ±1 second, whichever is greater