Metering - GE 869 Instruction Manual

CHAPTER 1: INTRODUCTION

Metering

869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
TAB PUSHBUTTONS
Number of elements: ........................................1 (20 Tab Pushbuttons)
Data Storage:........................................................Non-volatile memory
Mode:........................................................................Self-reset, latched
Display Message:................................................2 lines; 15 characters per line
Dropout Timer:.....................................................0.000 to 60.000 s in steps of 0.005
Auto-reset Timer:................................................0.2 to 600.0 s in steps of 0.1
Hold Timer: ............................................................0.1 to 10.0 s in steps of 0.1
Timer Accuracy: ..................................................±3% of delay setting or ±¼ cycle (whichever is greater) from
USER-PROGRAMMABLE LEDS
Number: ..................................................................17 (14 + 3 PB LEDS) for Membrane and Rugged Front Panels
Programmability:................................................any logic variable, contact, or virtual input
Reset mode:........................................................... self-reset or latched
USER-PROGRAMMABLE PUSHBUTTONS
Number of pushbuttons: .................................3 (Membrane and Rugged Front Panels)
Mode:........................................................................Self-reset, latched
Display message:................................................2 lines of 13 characters on each line
Dropout timer: ......................................................0.000 to 60.000 s in steps of 0.005
Auto-reset timer: .................................................0.2 to 600.0 s in steps of 0.1
Hold timer:..............................................................0.0 to 10.0 s in steps of 0.1
MOTOR
Motor Metered Values
Parameters:...........................................................Motor Load, Thermal Model Biased Load, Filtered Motor
RMS Accuracy: .....................................................± 0.25% of reading or ± 0.2% of rated (whichever is greater)
Magnitude Accuracy:........................................± 0.5% of reading or ± 0.2% of rated (whichever is greater)
RMS PARAMETERS
Currents
Parameters:...........................................................Phase A, B, C, Neutral, Ground
Accuracy:................................................................± 0.25% of reading or ± 0.2% of rated (whichever is greater)
Voltages
Parameters:...........................................................Wye VTs: A-n, B-n, C-n, A-B, B-C, C-A, Average Phase, Neutral
Accuracy:................................................................± 0.5% of reading from 15 to 208 V
Real Power (Watts)
Range: ......................................................................-214748364.8 kW to 214748364.7 kW
Parameters:...........................................................3-phase; per phase if VT is Wye
Accuracy:................................................................± 1.0% of reading or 0.2 kW (whichever is greater) at -0.8 <
Reactive Power (Vars)
Range: ......................................................................-214748364.8 kvar to 214748364.7 kvar
Parameters:...........................................................3-phase; per phase if VT is Wye
Accuracy:................................................................± 1.0% of reading or 0.2 kvar (whichever is greater) at -0.2 <
pickup to operate
Load, Filtered RMS Phase A, B, C Currents, Filtered Phasor
Magnitude Phase A, B, C Currents
from 0.1 to 2.0 x CT
± 1% of reading > 2.0 x CT
from 0.1 to 2.0 x CT
from 0.1 to 2.0 x CT
± 1% of reading > 2.0 x CT
and Residual
Delta VTs: A-B, B-C, C-A, Neutral and Residual
± 1% for open Delta connections
PF ≤ -1.0 and 0.8 < PF < 1.0
PF ≤ 0.2
SPECIFICATIONS
1–25