AC Constant Current Source

Constant Current Output: High precision and pure sine wave ensure constant current.

Wide Frequency Adjustment: Supports fixed frequency of 50/60Hz and adjustment within the range of 45Hz~65Hz.

Strong Load Adaptability: Can connect to resistive, inductive, and capacitive loads.

Intelligent Testing: Supports automated cyclic testing at multiple current levels.

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Product Detail

Overview:

The HCT series is a high-precision, low-harmonic-distortion constant current source. Thisconstant current source is an AC power supply that maintains a constant output current evenwhen the extemal power grid fluctuates or the impedance characteristics of the power supplychange. This power supply is mainly used in products and applications where specific currentthermal effects are tested.

Features:

When used with constant current and constant voltage, it can automatically switch between them to maintain both control and protection characteristics.

The output current is constant, and the output waveform is a pure sine wave, which can be used as an overcurrent detection instrument.

It can handle resistive, inductive, and capacitive loads, meeting the requirements of low-vol tage electrical appliances for test power supplies.

High current regulation accuracy ensures constant output current.

It can perform automated testing at different current levels and can perform cyclic testing o perations.

Circuit Block Diagram:

Application Industries:

It is applied in fields such as the electrical and electronic industry, colleges and universities, laboratories and research and testing, industrial and mining enterprises, electrolytic plating, charging equipment, and aging electronic components.

Product Applications:

Technical Parameters:

Unit Type	HCT	HCT		HCT	HCT	HCT	HCT	HCT
	-31060	-31090		-31120	-31150	-31300	-31450	-311500
Rated Power	6kVA	9kVA		12kVA	15kVA	30kVA	45kVA	150kVA
Input AC Indicators
Power supply format	Three-phase four-wire + PE
Voltage Range	380V(±15%）
Frequency Range	50/60Hz(±10%）
Output AC Characteristics
Power supply format	Single-phase two-wire + PE
Voltage Range	Upscale:0~30VL-N
Current Range	0-200A	0-300A		0-400A	0-500A	0-1000A	0-1500A	0-5000A
Frequency Range	Fixed frequency: 50/60Hz, Variable frequency: 45~65Hz
Source Effect	≤ 0.1%F.S
Load Effect	≤ 0.1%F.S
Current accuracy	≤ 0.1%F.S
Frequency accuracy	≤ 0.01%F.S
Voltage Harmonic	≤ 2%
Response Time	≤ 5ms
Device Efficiency	≥ 90%
Overload Capacity	120%~150%，1min；150%~200%，2s；≥ 200%， Immediately shut off the output.
System Function
Memory function	After a power outage and subsequent power restoration, the device can remember the last output mode and parameters.
Protection Function	Input undervoltage/overvoltage and phase loss protection, output overvoltage, overcurrent, overload, and short-circuit protection, and internal overtemperature protection, etc.
Display and Communication
Local Operation		LCD display screen
Display Resolution		Voltage: 0.1V, Current: 0.1A, Frequency: 0.1Hz, Power: 0.1kW
Display Accuracy		Voltage: 0.1% F.S, Current: 0.2% F.S, Frequency: 0.01%, Power: 0.3% F.S
Remote Communication		RS 485/LAN
Communication protocol		Standard Modbus RTU/Modbus TCP/IP
Safety Performance
Compressive Strength			2000 Vdc / 60 seconds / No breakdown
Insulation Resistance			≥ 20MΩ@500Vdc
Grounding Resistance			≤ 100mΩ
Noise			≤ 65dB(A)
Usage Environment
Working Environment	It can operate continuously for 24 hours under ambient temperatures ranging from -20℃ to 45℃ and relative humidity from 0% to 95%.
Cooling Method	Fan-forced air cooling
Protection Level	IP 20
Altitude	≤ 5000m@＞ 2000mReduced usage
Size（WDH）mm	350560670 (With wheels)	5008201100 (With wheels)		5008201100 （(With wheels)	5008201100 (With wheels)	52011601360 （(With wheels)	52011601360 （(With wheels)	15508501985 (With wheels)

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