Power Quality Cabinet – HYSPC three-phase load imbalance automatic adjustment device – LASTONE

Overview

Three-phase imbalances are common in low voltage distribution networks. Due to the existence of a large number of singlephase loads in urban and rural networks, the current imbalance between the three phases is particularly serious.

The current imbalance in the power grid will increase the loss of the line and transformer, reduce the output of the transformer, affect the operation safety of the transformer, and cause zero drift, resulting in three-phase voltage imbalance, and reduce the quality of power supply. In view of the above situation, our company have developed three-phase unbalanced automatic regulation device for the purpose of optimizing power quality and realizing energy conservation and emission reduction.

The device filters over 90% of the zero sequence current and controls the three-phase imbalance within 10% of the rated capacity.

Model and Meaning

HY

SPC

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No.

Name

Meaning

1

Enterprise code

HY

2

Product type

three phase imbalanced regulation

3

Capacity

35kvar、70kvar、100kvar

4

Voltage level

400V

5

Wiring Type

4L: 3P4W      3L: 3P3W

6

Mounting type

outdoor

7

Door opening mode

No marked: the default is front door opening, wall mounted installation; Side door opening, plug-in three-phase four wire installation must be specified

* Note: The parameters and dimensions of HYSPC module and HYSVG module on page 25 are the same

Technical Parameters

Normal working and installation conditions
Ambient temperature	-10℃ ~ +40℃
Relative humidity	5％～ 95％，no condensation
Altitude	≤ 1500m，1500~3000m (derating 1% per 100m) according to GB / T3859.2
Environmental conditions	no harmful gas and steam, no conductive or explosive dust, no severe mechanical vibration
Outdoor installation	At least 15cm space should be reserved for the upper and lower air outlets of the module, and at least 60cm space should be reserved for the front and rear of the cabinet for easy maintenance.
Relative humidity	Relative humidity:When the temperature is + 25 ℃ , the relative humidity can reach 100% in a short time
System parameters
Rated input line voltage	380V (-20% ~ +20%)
Rated frequency	50Hz ( 45Hz ～ 55Hz)
Power grid structure	3P3W/3P4W (400V)
Current transformer	100/5 ～ 5,000/5
Circuit topology	three-level
Overall eifficiency	≥ 97%
Standard	CQC1311-2017、DL/T1216-2013、JB/T11067-2011
Performance
Three-phase balance compensation capability	Imbalance ＜ 3%
Target power factor	1, Response time ＜ 10ms
Reactive power compensation rate	＞ 99%
Protective function	Over-voltage protection, under-voltage protection, short-circuit protection, over-current protection, over temperature protection, drive fault protection，lightning protection
Power distribution function	With C-level lightning protection function
Communication monitoring capability
Display content	Real-time operating information such as voltage, current, power factor, and operating temperature
Communication interface	Standard RS485 interface, optional wifi or GPRS, (only one communication mode can be selected for the same device)
Communication protocol	Modbus protocol
Mechanical properties
Mounting type	F or H pole, installation inclination < 5 ℃
IP grade	IP grade
Dimension and structure	capacity (kavr)	front door opening		side door opening		weight (kg)	hole dimension
		Dimension (W×H×D)	mounting dimension(W×D)	Dimension (W×H×D)	mounting dimension (W×D)
	35	760×1150×470	624×250	780×1110×620	644×350	50	4-Φ13
	70	760×1150×470	624×250	780×1110×620	644×350	75	4-Φ13
	100	760×1150×470	624×250	780×1110×620	644×350	95	4-Φ13