HZTD35 Portable calibration device for three-phase electric energy meter

Three-phase current output
Current
Short-term stability
( % / min )
Annual accuracy
± ( ppm*RD ① +ppm*RG ② )
Maximu
m load
voltage
( V )0.1
level: 0.05
level: 0.02
level : 0.1 level 0.05 level 0.02 level
20 mA 0.02 0.01 0.005 600+400 300+200 120+80 24
50 mA 0.02 0.01 0.005 600+400 300+200 120+80 24100 mA 0.02 0.01 0.005 600+400 300+200 120+80 24
200 mA 0.02 0.01 0.005 600+400 300+200 120+80 24
500 mA 0.02 0.01 0.005 600+400 300+200 120+80 24
1 A 0.02 0.01 0.005 600+400 300+200 120+80 24
2 A 0.02 0.01 0.005 600+400 300+200 120+80 6
5 A 0.02 0.01 0.005 600+400 300+200 120+80 6
10 A 0.02 0.01 0.005 600+400 300+200 120+80 2
20 A 0.02 0.01 0.005 600+400 300+200 120+80 2
50 A 0.02 0.01 0.005 600+400 300+200 120+80 0.6
100 A 0.02 0.01 0.005 600+400 300+200 120+80 0.6
Three-phase current output range: 2 mA～120 A, distortion: <0.5%
Symmetry: current is better than ± 0.5%, phase is better than ± 0.5°
Protection function: current open circuit protection, overload protection
4.3 Frequency / Phase / Harmonics
Frequency adjustment range: 45.000 Hz～65.000 Hz
Adjustment fineness: 0.001 Hz; annual measurement uncertainty (k=2): ± 0.01
Hz
Phase adjustment range: 0.000°～359.999°
Adjustment fineness: 0.005°; annual measurement uncertainty (k=2): ± 0.1°Harmonic (optional): 2 to 21 times; amplitude 0 to 25%, phase adjustable from
0.0° to 359.9°
4.4 Power/energy measurement
Types Current range 0.1 level 0.05 level 0.02 level
Output power
stability
( % / 2min )
50 mA≤I≤120 A 0.05 0.02 0.01
2 mA≤I< 50 mA 0.05 0.03 0.02
Active power /
apparent power
of electrical
energy
|cosΦ| ≥0.5
50 mA≤I≤120 A 0.1%*RD 0.05%*RD 0.02%*RD
2 mA≤I< 50 mA 0.2%*FS ③ 0.1%*FS 0.05%*FS
Reactive
power/electric
energy
|sinΦ| ≥0.5
50 mA≤I≤120 A 0.2%*FS 0.1%*FS 0.05%*FS
2 mA≤I< 50 mA 0.5%*FS 0.2%*FS 0.1%*FS
Power factor
50 mA≤I≤120 A 0.1% 0.05% 0.02%
2 mA≤I< 50 mA 0.2% 0.1% 0.05%
Note: ③ FS = voltage range value × current range value
Power/energy measurement range: combination of AC voltage range and AC
current range
Power factor measurement range: -1.000 00…0.000 00…1.000 00Standard energy pulse output: high-frequency full-scale value corresponds to
60 kHz, low-frequency full-scale value corresponds to 6 Hz
Standard electric energy pulse input: frequency ≤ 150 kHz, voltage: 0…3.3
V…24 V
Energy error display: automatic, with a resolution of 0.0001%
5. General technical specifications
Power supply: AC (220 ± 22) V, (50 ± 2) Hz
Working environment: 0 ℃～40 ℃, 20%～80% R·H, no condensation
Storage environment: -20 ℃～70 ℃, <80% R·H, no condensation
Device size: 490 mm (W) × 485 mm (D) × 200 mm (H)
Device mass: about 29.0 kg
Communication interface: RS232