1 Device Features
 This device has various compensation modes (harmonic, reactive power, three-phase
unbalance and capacitor switching control), which can simultaneously make the said
various compensation, and compensation capacity for harmonic, reactive power, and
three-phase unbalance can also be set freely, comprehensively solving the problem of
power quality of the low-voltage power distribution side;
 The device can filter out 2
nd
to 50
th odd order harmonics at the same time, and specific order
harmonics (2
nd
to 50
th odd, selective) can be filtered out according to the setting.
 The device can dynamically and smoothly compensate inductive and capacitive reactive
power, and the power factor of the system after compensation is greater than 0.99;
 The unbalance degree of the three-phase active load current of the system after
compensation within the rated capacity is less than 5%;
 Fast response, high controllability, automatic current limiting function and no overload;
 Whether it is harmonic filtering, reactive power compensation or three-phase unbalance
compensation, the device can automatically compensate according to the harmonic current,
reactive power and three-phase unbalance load of the system. The problem of
overcompensation will not occur.
 It features modular design, a variety of installation methods, such as rack-mounted type and
wall-mounted type, etc., and multiple devices can operate in parallel, so as to meet the
actual needs to the greatest extent.
 It has a function of multiple protection against over-current, over-voltage, over-temperature,
phase sequence error and default phase, etc.
 It is configured with RS485 and CAN standard communication interfaces, which can make
it exchange information with other unit devices, and it can also be configured with wired /
wireless communication modules to realize remote data monitoring.
1.1.2 Device Parameters
Operating voltage 400V*±15%
Operating frequency 50Hz±2.5
Main circuit structure Three Phase Four Wire
Rated capacity(Module) 15A, 25A, 50A, 75A, 100A, 150A
Circuit topology Three-level structure
Multi devices in parallel Up to 12 sets can be connected in parallel
SHANGHAI YINGTONG
— 6 —
Response time ≤5ms
Efficiency of single machine ≥98%
Working mode
Harmonic compensation, reactive power compensation,
three-phase load unbalance compensation.
Harmonic filtering
The device can filter out harmonics 2
nd
to 50
th odd orders at
the same time(Full), and specific order harmonics(between
2
nd
to 50
th odd) can be filtered out by setting(selective)
Current limit
The compensating current is automatically limited within
the rated current range.
Compensation effect
(At sufficient capacity)
Total harmonic current distortion rate (THDi) ≤ 5%;
Reactive power factor ≥0.99;
Three-phase unbalance degree≤ 5%;
Display Interface External 7” HMI or built-in HMI
Display status Displayed in a data mode
Operations Manual start, automatic start
Communication RS485, Modbus communication protocol
Environment temperature -20 ~ 55 ℃ (rated power output)
Storage temperature -30～70℃
Relative humidity 95 % at a maximum, no condensation
Altitude Below 1500 meters above sea level
Cooling requirements
Require well ventilation, and the air vent can be opened
through the cabinet door, or a fan installed in the cabinet.
Note:
1. The above parameters can be reached when the compensating current reaches 50% of the rated
capacity and above.
2. If devices need mitigate even order harmonics, inform us in advance.
3. If devices need control capacitors, inform us in advance.
1.2 Appearance and Installation Dimension
1.2.1AHF Dimension
The device capacity is divided into 15A,25A,50A,75A,100A,150A. And each device can be
operated in any parallel combination, of which the external dimensions of 15A and 25A,30A,50A
and 75A,100A and 150A are completely the same. Please refer to the following figure for specific
external dimensions.