AHY-12 STANDARD SERIES AC CONSTANT CURRENT SOURCE

Series:

The AHY-12 standard series AC constant current source uses SPWM high-frequency pulse width modulation, which can modulate the output current and frequency. It features fast response speed, high constant current accuracy, and long-term stable operation. It can overcome current changes caused by fluctuations in grid voltage, changes in loop resistance, and changes in product internal resistance, and is unaffected by human factors. It is mainly used for current thermal effect testing and applications of specific products, such as circuit breakers, fuses, thermal relays, magnetic starters, and other protective switches, as well as various transformers that require testing of rated current, operating current, and short-circuit current thermal effects. Target users include low-voltage electrical appliance manufacturers, electrical testing institutions, electrical research units, and university training bases. Applications include: molded case circuit breaker characteristic testing and verification equipment, miniature circuit breaker instantaneous characteristic testing and verification equipment, and lean production testing lines.

Product Inquiry

Details

Product Features

■Constant current, constant current adjustment range: 0-maximum value continuous adjustment;

■Constant voltage, constant voltage adjustment range: 0-maximum value continuous adjustment;

■When using constant current and constant voltage, it can automatically switch between them, maintaining both control and protection characteristics;

■Provides measurement of RMS voltage, RMS current, active power, frequency, and power factor;

■Pure power output quality: Provides a pure and reliable sine wave output. It is not only the best source for R&D and laboratories, but also a standard power supply for EMI/EMC and other safety tests;

■Excellent stability: Output load voltage ≤ ±1%, output frequency ≤ ±0.02%. Its output frequency is generated by a quartz crystal oscillator, providing a very stable and accurate frequency output;

■High-efficiency IGBT module: Saves electricity, energy, and money. Using an Insulated Gate Bipolar Transistor (IGBT) module, it can drive high-power output, improve quality stability, and reduce power loss and interference;

■Direct selection of output frequency range: 50Hz, 60Hz (100HZ, 120HZ, 200HZ, 240HZ, 400Hz optional) can be used for interlayer withstand voltage tests of transformers, coils, etc.;

■Fast transient response speed: For 100% unloading/loading, the output load voltage regulation (within the response time) can immediately stabilize at ±1% (linear load);

■Strong overload capacity: Allows 100% full load for long-term use; When the instantaneous load capacity exceeds 3 times the rated current, this power supply can withstand it without causing a voltage drop;

■Multiple safety protection functions:

It has overvoltage, overcurrent, overtemperature, and short-circuit protection, and an alarm device. In case of abnormal conditions, the electronic circuit of the unit will automatically sense and immediately cut off the output, and at the same time issue an alarm to notify the user to handle the emergency situation.

■Suitable for various loads: Resistive, capacitive, inductive, or non-linear loads can be used;

■High measurement accuracy, suitable for testing various waveforms with DC components, such as current sine half-waves and similar waveforms.

Product Applications

AC air switches / AC contactors / Mechanical switches / Electronic switches / AC current transformers / Thermal relays / Molded case circuit breakers / Miniature short-circuit devices and those requiring rated current setting

Operating current / Short-circuit protection current, etc. / Automated detection and verification platform / Current requirement testing sites

Product Specifications

AHY-12 General Series AC Constant Current Source
Model		AHY-12-10-50	AHY-12-10-100	AHY-12-10-200	AHY-12-10-300	AHY-12-10-500
		AHY-12-10-1000	AHY-12-10-1500	AHY-12-10-2000	AHY-12-10-3000	AHY-12-10-5000
		AHY-12-10-4500	AHY-12-10-6000	AHY-12-10-7000	AHY-12-10-8000	AHY-12-10-1M
Working Method		SPWM
Input	Phase	1φ2W(≤10KW) 3φ4W(≥10KW)
	Voltage	220V+10%(≤10KW) 380V+10%(≥10KW)
	Frequency	47 Hz - 63 Hz
Output	Phase	1φ2W(3φ4W optional)
	Voltage	0-3000V (optional)
	Frequency	45Hz-63Hz continuous adjustment, fixed 50Hz/60Hz, (40-500 optional)
	Wiring	Low current terminal, high current output copper busbar
	Protection	Electronic circuit quickly identifies overcurrent, overvoltage, and overtemperature, automatically tripping; VA=0 in non-test state
LED Display		Voltage, Current, Frequency, Power, Power Factor PF
Power Supply Regulation Linear Regulation		0.1%
Load Regulation Load Regulation		0.5FS %
Waveform Distortion Rate Harmonic THD		2% (pure resistive load)
Frequency Stability Frequency Regulation		0.01%
Voltage Resolution Voltage Resolution		0.1 V
Current Resolution Frequency Resolution		0.001 A/0.01 A/0.1 A/1 A
Frequency Resolution Current Resolution		0.1Hz
Measurement Accuracy Accuracy	Voltage	0.5 % FS±5dgt
	Current	0.5 % FS±5 dgt
	Wattage	0.5 % FS±5 dgt
	Frequency	0.01% FS±5 dgt
Set Accuracy Setting Accuracy	Voltage	1% FS
	Frequency Current	0.1% FS
Protection		Overcurrent, Overtemperature, Overload
Operating Environment		Temperature: 0 - 45°C, Relative Humidity: 0-90% (non-condensing), Altitude 1500m
Insulation Resistance Insulation reactance		500Vdc 20MQ or more
Dielectric Strength Withstand voltage insulation		1800Vac/5mA/1 minute
Cooling Method		Forced Air Cooling
Communication Interface		RS232C/485, corresponding communication protocols provided
Customizable Features Customized Features		Voltage/Size Customizable
Efficiency		≥98
Noise		≤60DB (1m)
Protection Level Protection Grade		IPX20
Transformer Accuracy Transformer Accuracy		0.2S
Size		Inquiry factory
Weight (Kg)		15kg~900kg
Notes		The above models are our standard models. Other voltage and current levels can be customized according to the actual needs of users.

Note: This product is constantly being updated. Technical parameters are subject to change without notice. Voltage and current levels can be customized according to user needs.

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