2.2.2 Measurements and Accuracies
2.2.3 List of Motor Protection Features
• ANSI 19 – Reduced Voltage Start
• ANSI 27 / 59 – Adjustable over/under voltage protection (Off or 1 to 40%, time 0.1 to 90.0 sec. in 0.1 sec. intervals,
independent over and under voltage levels)
• ANSI 37 – Undercurrent detection (Off or 5 to 100% and time 0.1 to 90.0 sec. in 0.1 sec. intervals)
• ANSI 46 – Current imbalance detection (Off or 5 to 40%)
• ANSI 47 – Phase rotation (selectable ABC, CBA, Insensitive, or Single Phase)
• ANSI 48 – Adjustable up-to-speed / stall timer (1 to 900 sec. in 1 sec. intervals)
• ANSI 50 – Instantaneous electronic overcurrent trip
• ANSI 51 – Electronic motor overload (Off, class 1 to 40, separate starting and running curves available)
• ANSI 51 – Overcurrent detection (Off or 50 to 800% and time 0.1 to 90.0 sec. in 0.1 sec. intervals)
• ANSI 51G – Residual Ground fault detection (Off or 5 to 100% of motor FLA)
• ANSI 74 – Alarm relay output available
• ANSI 81 – Over / Under Frequency
• ANSI 86 – Overload lockout
• Single Phase Protection
• Shorted SCR detection
• Mechanical Jam
11
2 - TECHNICAL SPECIFICATIONS
Function
Terminal
Block
Terminal Number Description
SCR J6 to J11 1: Gate
2: Cathode
SCR gate Connections
Phase C.T. J12 1: CT1
2: CT1
3: CT2
4: CT2
5: CT3
6: CT3
See CT Connector
Wire Gauge: The terminals can support 1- 14 AWG wire or 2-16 AWG wire or smaller.
Torque Rating: The terminals on the control card have a torque rating of 5.0-inch lb. or 0.56Nm. This MUST be followed or damage will occur to the terminals.
Refer to the Control Card Layout on page 39.
Table 1: Terminals
Internal Measurements
CT Inputs
Conversion: True RMS, Sampling @ 1.562kHz
Range: 1-6400A
Line Voltage Inputs
Conversion: True RMS, Sampling @ 1.562kHz
Range: 100VAC to 1000VAC 23 to 72 Hz
Metering
Current
Voltage
Watts
Volts-Amps
Watt-Hours
PF
Line Frequency
Ground Fault
Run Time
Analog Input
Analog Output
0 – 40,000 Amps ± 3%
0 – 1250 Volts ± 3%
0 – 9,999 MW ± 5%
0 – 9,999 MVA ± 5%
0 – 10,000 MWh ± 5%
-0.01 to +0.01 (Lag & Lead) ± 5%
23 – 72 Hz ± 0.1 Hz
5 – 100% FLA ± 5% (Machine Protection)
± 3 seconds per 24 hour period
Accuracy ± 3% of full scale (10 bit)
Accuracy ±2% of full scale (12 bit)
z NOTE: Percent accuracy is percent of full scale of the given ranges, Current = Motor
FLA, Voltage = 1000V, Watts/Volts-Amps/Watt-Hours = Motor & Voltage range
Table 2: Measurements and Accuracies
To Next Page
Loading...
Need help?
General
