Novatech Bitronics M87X Series, Manual

Page: 104 / 184

ML0021 August 15, 2018
88
Copyright 2018 Bitronics, LLC
Input Signals (S10, S11, S12, S1C)
VT (PT) AC
Voltage Inputs
(S10, S11,
S12) Terminals
9 to 16
(cont’d) Configuration 8 Inputs, Measures 2 Buses, 3 or 4 Wire.
Nominal 120Vac
System Voltage Intended for use on nominal system voltages up to 480V rms phase-to-phase (277V rms
phase-to-neutral).
Peak Voltage Reads to 600V peak (425V rms), input-to-case (ground)
Impedance >7.5M
Ω , input-to-case (ground)
Voltage
Withstand 2.5kV rms 1min, input-to-case (ground)
2kV rms 1min, input-to-input
Frequency 15-70Hz
AUX
Measurement
Voltage Inputs
(S10, S11,
S12) Terminals
17 & 18
Configuration 2 Inputs: VAX1 & VAX2
Nominal
125Vdc / 120Vac
System Voltage Intended for use on nominal AC system voltages up to 480V rms phase-to-phase (277V
rms phase-to-neutral), and DC system voltages up to 250Vdc.
Peak Voltage Reads to 600V peak (425V rms), input-to-case (ground)
Impedance >7.5M
Ω , input-to-case (ground)
Voltage
Withstand 2.5kV rms 1min, input-to-case (ground)
2kV rms 1min, input-to-input
Frequency DC-70Hz
Input Signals (S13, S14, S15, S16, S17, S2C)
CT Current
Inputs (S13) Configuration 6 Inputs. 2 sets of 3 Phase Currents
Nominal 5Aac
Peak Current
Linear to 100A symmetrical (141A peak) at all rated temperatures.
Overload 30Aac continuous. Withstands 400Aac for 2 seconds.
Isolation 2500Vac, minimum.
Burden 0.04VA @ 5A rms, 60Hz (0.0016 Ω @ 60Hz).
Frequency 15-70Hz
CT Current Configuration 6 Inputs. 2 sets of 3 Phase Currents