Huawei DDSU666-H - Technical Specifications; Environmental Specifications; Electrical Parameters; Percentage Error

DDSU666-H Smart Power Sensor
User Manual
A Technical Specifications
Issue 01 (2018-05-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
13
A Technical Specifications
A.1 Environmental Specifications
Item
Specifications
Regulated working temperature
range
-25ºC to +60ºC
Limited working temperature
range
-35ºC to +70ºC
Relative humidity (Annual
average)
≤ 75% RH
Atmospheric pressure
86-106 kPa
A.2 Main technical performance and parameter
A.2.1 Electrical parameter
Regulated working voltage range
176-288 VAC
Extended working voltage range
0.7-1.3 Un
Working frequency range
45-65 Hz
A.2.2 Percentage error
The percentage error of the sensor cannot exceed the following corresponding limited value.
Current value
Power factor
The percentage error
limitation of various
grade instruments
Direct connect
Via transformer
Class 1