1、 Product features of three-phase ammeter:
■ True effective value measurement, full four digit display ■ Three row LED displays A, B, C three-phase voltage or current simultaneously ■ Optional upper and lower limit alarm control function ■ Programmable display value can be adjusted freely through panel buttons from 1 to 9999 ■ Optional communication function, communication address, baud rate ■ Software calibration, high accuracy, long-term operation without calibration
Application range of three-phase ammeter
Control system, energy management system, substation automation, distribution network automation, building automation, industrial automation, residential power monitoring, intelligent buildings, switchgear, etc.
Installation method
1). On the fixed distribution cabinet, choose a suitable location to open an installation hole of the appropriate size. 2) Loosen the positioning screw and remove the fixing clip. 3) Insert the instrument into the instrument hole of the distribution cabinet. 4) Insert the fixing clip of the instrument and fix the positioning screw. Note: L-N is an auxiliary power supply. Please wire it correctly according to the instrument casing wiring diagram
wiring method
Current input: The standard rated input current is 5A. If it is greater than 5A, an external CT should be used. If other instruments are connected to the CT used, the wiring should be in series. Before removing the current input connection of the product, be sure to disconnect the CT primary circuit or short-circuit the secondary circuit. It is recommended to use a wiring harness instead of directly connecting to the CT for ease of disassembly and assembly.
2、 Technical specifications of three-phase ammeter
Losing
Input voltage: 500V (special can be customized)
Show off
Display LED in four digits, display data update time: 1 second
Current: 5A, 1A (special can be customized)
Display 0~9999
Overload lasting 1.2 times
Accuracy level 0.5%
Instantaneous: voltage 2 times/second, current 10 times/second
Isolation withstand voltage 2KV/50Hz/1min
Expand the range of transformers or splitters
Insulation resistance ≥ 100M Ω
Frequency 50Hz ± 10%
Average normal working hours ≥ 9000h
Electricity
Source voltage AC 220V ± 10% (special can be customized)
Working conditions and environmental temperature:- 25℃~55℃
Power consumption ≤ 3W
Places with humidity ≤ 93% and no corrosive gases
3、 Size of three-phase ammeter
Exterior code, exterior dimensions, opening dimensions
A(mm) B(mm) C(mm) D(mm) E(mm)
42 square 120 120 80 111 111
6 Square 80 80 76 76 76
96 square 96 78 81 81
72 Square 72 72 74 67 67
Micro square 48 48 112 45 45