10.1 General Specifications
150
Basic Specifications
1.Power Measurement Input Specifications
Measurement line type Single-phase 2-wire (1P2W), Single-phase 3-wire (1P3W), 3-phase, 3-wire (3P3W2M, 3P3W3M), 3-phase, 4-wire (3P4W)
Number of input channels Voltage......4 channels U1 to U4
Current ......4 channels I1 to I4
Measurement input terminal type Voltage......Plug-in jacks (safety jacks)
Current ......Dedicated custom connectors
Input methods Voltage......isolated inputs, resistive dividers
Current ......Insulated current sensors (voltage output)
Voltage range 1500 V, 600 V, 300 V, 150 V, 60 V, 30 V, 15 V @selectable for each measured wiring system
Current range 20 A, 8 A, 4 A, 2 A (20 A with 9272-10)
20 A, 8 A, 4 A, 2 A, 0.8 A, 0.4 A (20 A with 9277)
200 A, 80 A, 40 A, 20 A, 8 A, 4 A (200 A with 9272-10, 9278 and CT6863)
50 A, 20 A, 10 A, 5 A, 2 A, 1 A (CT6862)
500 A, 200 A, 100 A, 50 A, 20 A, 10 A (9279 and 9709)
selectable for each measurement channel (however, the same sensor type must be used for each
channel in multiphase wiring systems)
Crest factor 3 (Voltage, Current) Except 1500 V range: 1.33
Input resistance (50/60 Hz) Voltage input section 2 MΩ ±40 kΩ (differential inputs)
Current sensor input section1 M
Ω ±50 kΩ
Maximum input voltage Voltage input section 1500 V, ±2000 Vpeak
Current sensor input section 5 V, ±10 Vpeak
Maximum rated voltage to earth Voltage input terminal1000 V (50/60 Hz)
Measurement Categories III 600 V (anticipated transient overvoltage 6000 V)
Measurement Categories II 1000 V (anticipated transient overvoltage 6000 V)
Measurement method Simultaneous digital sampling of voltage and current, simultaneous zero-crossing calculation method
Sampling 500 kHz/ 16bit
Measurement frequency range DC, 0.5 Hz to 150 kHz
Synchronization frequency range 0.5 Hz to 5 kHz
Selectable lower limit measurement frequency (0.5 Hz, 1 Hz, 2 Hz, 5 Hz, 10 Hz, 20 Hz)
Synchronization source U1 to U4, I1 to I4, Ext (with the motor evaluation option installed and CH B set for pulse input),
DC (50 or 100 ms fixed)
Selectable for each measurement channel (U/I of each channel must be the same as the sync
source)
The zero-crossing filter automatically matches the digital LPF when U or I is selected.
Two filter levels (strong or mild)
Operation and accuracy are undetermined when the zero-crossing filter is disabled (off).
Operation and accuracy are undetermined when U or I is selected and measured input is below 30% f.s.
Data update interval 50 ms
LPF OFF, 500 Hz, 5 kHz, 100 kHz (selectable for each wiring system)
500 Hz.... Accurate to 60 Hz or better, With specified accuracy to +0.1% f.s.
5 kHz...... Accurate to 500 Hz or better
100 kHz.. Accurate to 20 kHz or better, (add 1% rdg. from 10 kHz to 20 kHz)
Polarity discrimination Voltage/current zero-crossing timing comparison method
Zero-crossing filter provided by digital LPF
Measurement items Voltage (U), Current (I), active power (P), apparent power (S), reactive power (Q), power factor (λ),
power phase angle (
φ), frequency (f), efficiency (η), loss (Loss), voltage ripple factor (Urf, current
ripple factor (Irf), current integration (Ih), power integration (WP), peak voltage (Upk), peak current
(Ipk)
CH1 CH2 CH3 CH4
Mode 1 1P2W 1P2W 1P2W 1P2W
Mode2 1P3W 1P2W 1P2W
Mode3 3P3W2M 1P2W 1P2W
Mode4 1P3W 1P3W
Mode5 3P3W2M 1P3W
Mode6 3P3W2M 3P3W2M
Mode7 3P3W3M 1P2W
Mode8 3P4W 1P2W
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