Three-phase 60 Hz variable-frequency power supply

Since joining the WTO, China’s economy has integrated with the global market, creating opportunities for export-oriented electrical equipment manufacturers. Due to the lack of unified grid standards across different countries, the production of export products requires simulating the grid conditions of various nations while ensuring stability. In the past, voltage regulators were used for voltage adjustment, stabilizers for voltage stabilization, and generators for secondary frequency conversion—approaches that consumed significant power, generated considerable noise, and offered poor stability—have gradually been replaced by variable-frequency power supplies. The AC60 programmable variable-frequency power supply is specifically designed and manufactured for voltage and frequency transformation testing of imported and exported electrical products. It can provide voltage and frequency according to international standard grid specifications, features digitally adjustable output voltage and frequency, delivers stable and pure waveform, eliminates grid interference, and is suitable for voltage and frequency transformation testing of export electrical products; as well as for various precision testing applications in laboratories, metrology rooms, etc., and as a power supply for imported 60Hz equipment.

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Category: AC Power Supply Series

Product Features

Equipped with overvoltage, overcurrent, short-circuit, and overheating warning devices;
Controlled by a 16-bit microprocessor, featuring intelligent functionality and flexible, user-friendly operation;
Low-distortion interference, fully isolated input/output, safe and reliable;
Unique instantaneous value control: minimal waveform distortion and high control accuracy;
The dynamic response is extremely fast; when the load varies from 0% to 100%, the steady-state response time is <0.1s;
Provides standard grid voltage and frequency specifications from various countries to conduct simulated testing of various electrical products;
No electromagnetic interference; contains minimal harmonic components and has undergone special treatment to ensure it does not generate any interference;
Efficiency exceeds 85%; it is suitable for a wide range of loads, including inductive, capacitive, and resistive loads;
Equipped with original imported German Siemens IGBT high-frequency inverter and core components, ensuring stability and reliability;
Output voltage: Low range: 0–150 V; High range: 0–300 V, continuously adjustable;
Multi-functional single device, integrating metering and source functions: outputs voltage, current, frequency, and power/power factor readings with a 0.5% accuracy class.

Execution Standards: “GB7260-87 – Uninterruptible Power Supply Equipment”; “Q/01AK001-2005 – Programmable Variable Frequency Voltage Regulation Power Supply”

Note: The maximum capacity of the three-phase variable-frequency power supply can reach 3,000 kVA.

Technical Parameters

Low-power three-phase 60 Hz variable-frequency power supply
type		Ay60-1303	Ay60-1306	Ay60-33010	Ay60-33015	Ay60-33020	Ay60-33030
capacity		3KVA	6KVA	10KVA	15KVA	20KVA	30KVA
output Current	low-end	8.4A	16.8A	27.6A	41.6A	56A	84A
	top grade	4.2A	8.4A	13.8A	20.8A	28A	42A
input voltage		220V±10%，50hz			380V±10%，50hz
Input Phase		uniphase			Three-phase four-wire system
output voltage	phase voltage	Low range: 0–150 V (continuous adjustment); High range: 0–300 V (continuous adjustment)
	line voltage	Low range: 0–260 V (continuous adjustment); High range: 0–520 V (continuous adjustment)
output frequency		Fixed frequencies: 50 Hz / 60 Hz / 100 Hz / 200 Hz; and continuous adjustable frequency range: 40.0 Hz – 200.0 Hz
Load Regulation Rate		≤±1%
frequency stability		Fixed frequency: ≤±0.01%; Variable frequency: ≤±0.1%
Three-phase imbalance		Phase: 120° ± 2°; Phase difference <3% of rated value
Waveform distortion degree		THD≤2%
reaction time		≤2mS
show accuracy	4-frequency meters	Resolution: 0.1 Hz
	4-voltmeter	Resolution: 0.1 V
	4-Ammeter	Resolution: 0.01 A
	4 Power Meters	Resolution: 0.1W
Communication Interface (Optional)		RS232 or RS485 is optional
protocol		MODBUS Communication Protocol
defencive function		Overvoltage, overcurrent, overheating, overload, short-circuit protection, and automatic alarm system
Insulating reactance		500Vdc 20MΩ
Dielectric insulation		1800 VAC / 5 mA / 1 minute
cooling-down method		Forced fan cooling
working temperature		-20℃-40℃
relative humidity		0–90% (non-condensing state)
above sea level		1,500 meters
(W × D × H) mm		400×660×900		450×830×1100		750×480×1380

High-power three-phase 60 Hz variable-frequency power supply
type		Ay60-33045	Ay60-33060	Ay60-33100	Ay60-33150		Ay60-33300	Ay60-33500
capacity		45KVA	60KVA	100KVA	150KVA		300KVA	500KVA
output Current	low-end	126A	168A	276A	400A		800A	1450A
	top grade	63A	84A	130A	200A		400A	700A
input voltage		380V±10%，50hz
Input phase		Three-phase four-wire system
output voltage	phase voltage	Low range: 0–150 V (continuous adjustment); High range: 0–300 V (continuous adjustment)
	line voltage	Low range: 0–260 V (continuous adjustment); High range: 0–520 V (continuous adjustment)
output frequency		Fixed frequencies: 50 Hz / 60 Hz / 100 Hz / 200 Hz; and continuous adjustable frequency range: 40.0 Hz – 200.0 Hz
Load Regulation Rate		≤±1%
frequency stability		Fixed frequency: ≤±0.01%; Variable frequency: ≤±0.1%
Three-phase imbalance		Phase: 120° ± 2°; Phase difference <3% of rated value
Waveform distortion degree		THD≤2%
reaction time		≤2mS
show accuracy	4-frequency meters	Resolution: 0.1 Hz
	4-voltmeter	Resolution: 0.1 V
	4-Ammeter	Resolution: 0.01 A
	4 Power Meters	Resolution: 0.1W
Communication Interface (Optional)		RS232 or RS485 is optional
protocol		MODBUS Communication Protocol
defencive function		Overvoltage, overcurrent, overheating, overload, short-circuit protection, and automatic alarm system
Insulating reactance		500Vdc 20MΩ
Dielectric insulation		1800 VAC / 5 mA / 1 minute
cooling-down method		Forced fan cooling
working temperature		-20℃-40℃
relative humidity		0–90% (non-condensing state)
above sea level		1,500 meters
(W × D × H) mm		600×1200×1485		750×1430×1485		19201200×1860			2000×1200×1900