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Introduction of other power supplies
Switching power supply, Heavy-duty power supply, Power supply modules, Military power supply —Shanghai Liyou Electrification Co.,Ltd
 
 
一、Single-phase ultra-high precision variable-frequency power supply
1. Product attributes
1)、High precision voltage, current, frequency, real power and power factor display.
2)、Measured signal magnitude is virtual value.
3)、Load voltage regulation accuracy---±0.5%。
4)、Load frequency stability---±0.1%。
5)、Multi-protection and warning functions, such as over-voltage protection, over-current protection, overload protection and over-temperature protection, etc.
2. Electrical parameters
Model: LHZ 2050 3001 3003 3005 3010 3015 3020 3030 3045 3060
Output capacity 500VA 1KVA 3KVA 5KVA 10KVA 15KVA 20KVA 30KVA 45KVA 60KVA
Circuit mode IGBT/PWM pulse wave width modulation mode
AC input Phase number 1Φ2W+G 3Φ4W+G
Voltage 220V±15% 380V±15%
Frequency 50Hz±3Hz/60Hz±3Hz
AC output Phase number 1Φ2W+G
Voltage 0~150Vlow gear/0~300Vhigh gear
Frequency 50Hz,60Hz,47~63Hz adjustable, 400Hz(can receive special frequency customization)
Maximum current Low gear 4。2A 8.4A 25A 42A 84A 126A 168A 250A 375A 500A
High gear 2.1A 4.2A 12.5A 21A 42A 63A 84A 125A 188A 250A
Frequency stability ≤0.01%
Load voltage regulation rate ≤±1% ≤±1.5%
Waveform distortion factor(THD) ≤2% ≤3%

Display

/resolution

Four-digit number frequency meter Resolution: 0.1Hz
Four-digit number voltage meter Resolution: 0。1V
Digital electric current meter 0。001A 0.01A Four-digit number electric current meter /resolution 0.1A Five-digit number electric current meter/resolution 0.1A
Overload capacity 120%/one hour,150%one minute,200%/15 seconds.(The data is tested according to 25% duty period)
Protecting equipment Input/output no-fuse switch, electronic circuit senses over-voltage, over-current,Over-load, over-temperature and short circuit and starts protection and alarm device automatically.
Work ambient temperature/ relative humidity Temperature-20℃ ~45℃/humidity0~90%( non--condensation condition)
Remarks: In this series, maximum single-phase power is 300KVA, maximum output frequency is 1000Hz and maximum output voltage is 1000V.
二、 Three phase ultra-high precision variable-frequency power supply
1. Product attributes
1)、Use discrete type(stand alone type), no-power supply transformer structure, input is not separated and output is separated.
2)、High precision constant frequency and constant voltage, knob type quick voltage and frequency regulation.
3)、High precision real virtual value digital display: three phase voltage, three phase current, three phase active power, frequency, high precision and strong capacity of resisting disturbance.
4)、It can make boundary analog voltage setting: +10%~+25%/-10%~-30%.
5)、Quick transient reaction velocity, 100% load/unload, stabilized voltage response time is within 2ms.
6)、Output frequency: 50Hz、60Hz、45~65Hz(400Hz option)
7)、Output voltage: phase voltage0~300V(line voltage0~520),?it can simulate voltages all over the world.
8)、Phase difference:120°±2°。
9)、Multi-protection and warning functions, such as over-voltage protection, over-current protection, overload protection and over-temperature protection, etc.

2. Electrical parameters
Model: LHZ 3006S 3010S 3020S 3030S 3045S 3060S 3075S 3100S 3150S 3180S
Output capacity 6KVA 10KVA 20KVA 30KVA 45KVA 60KVA 75KVA 100KVA 150KVA 180KVA
Circuit mode IGBT/PWM pulse wave width modulation mode
AC input Phase number 3Φ4W+G
Voltage 380V±15%
Frequency 50Hz±3Hz/60Hz±3Hz
AC output Phase number 3Φ4W+G
Voltage 0~150Vlow gear/0~300Vhigh gear
Frequency 50Hz,60Hz,47~63Hz adjustable, 400Hz(can receive special frequency customization)
Maximum current low gear 16.7A 27.8A 55。6A 88。3A 125A 167A 208A 278A 417A 500A
high gear 8.3A 13.9A 27.8A 41.7A 62.5A 83.3A 104A 139A 208A 250A
Frequency stability ≤0.01%
Load voltage regulation rate ≤±1% ≤±1.5%
Waveform distortion factor(THD) ≤2% ≤3%

Display/

resolution

Four-digit number frequency meter Resolution: 0.1Hz
Four-digit number voltage meter Resolution: 0.1V
Digital electric current meter Four-digit number electric current meter /resolution 0.1A Five-digit number electric current meter/resolution 0。1A
Phase deviation load three phase equilibrium or idle load:≤±2°100% three phase unbalance:±4°
Overload capacity 120%/One hour,150%/one minute,200%/15seconds。(The data is tested according to 25% duty period)
Protecting equipment Input/output no-fuse switch, electronic circuit senses over-voltage, over-current,Over-load, over-temperature and short circuit and starts protection and alarm device automatically.
Work ambient temperature/ relative humidity temperature-20℃ ~45℃/humidity 0~90%( non--condensation condition)
Remarks: In this series, maximum three-phase power is 800KVA, maximum output frequency is 1000Hz and maximum output voltage is 1000V;
三、Military J series 400Hz medium frequency solid power supply
1. Product attributes
1)、High precision constant frequency and constant voltage, knob type quick voltage and frequency regulation.
2)、High precision display: voltage, current, frequency, active power and power factor.
3)、Output frequency: 400Hz。
4)、Output voltage: 0~300V, it can simulate voltages all over the world.
5)、It can make boundary analog voltage setting: +10%~+25%/-10%~-30%.
6)、Multi-protection and warning functions, such as over-voltage protection, over-current protection, overload protection and over-temperature protection, etc.

2. Electrical parameters
Model J

9905

9001
9005
9010
9020
9030
9045
9060
90100
Output capacity
0.5KVA

1KVA

5KVA
10KVA
20KVA
30KVA
45KVA
60KVA
100KVA
Circuit mode
IGBT/PWM pulse wave width modulation mode
AC input
single-phase
220v/50Hz,60Hz
three phase
380V/50Hz,60Hz
AC output
Phase number
single-phase
Voltage
Low gear
0V~150V
High gear
0V~300V
Frequency
400Hz
Maximum current
Low gear
4.2A
8.4A
42A
84A
168A
250A
375A
500A
834A
High gear
2.1A
4.2A
21A
42A
84A
125A
188A
250A
417A
Frequency stability
≤0.1%
Load voltage regulation rate
±0.5%
Waveform distortion factor
±1.5%(resistive load)
Reaction time
maximum value2ms
Protecting equipment
Input/output no-fuse switch, electronic circuit senses over-voltage, over-current,Over-load, over-temperature and short circuit and starts protection and alarm device automatically.
Remarks: In this series, maximum three-phase power is 300KVA;

★Our company can manufacture various special variable-frequency and medium frequency power supplies according to customers’ requirements.