Electromagnet Power Supply
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Electromagnet Power Supply
Product Description:
This power supply is a high stability bipolar constant current power supply, which is widely used in the excitation of inductive loads such as electromagnets and Helmholtz coils. The power supply adopts a linear power supply structure, with high output current stability and low ripple and noise. The output current of the power supply can continuously change between the positive and negative rated current values, and the current smoothly and continuously cross zero, which can make the electromagnet or coil generate a smooth and stable magnetic field.
With the company's high-precision gauss meter and probe (option), the power supply can work in the magnetic field mode. In the magnetic field mode, the magnetic field value can be directly set, and the power supply will adjust the output current to make the electromagnet quickly reach the set magnetic field, which is convenient and fast, and the magnetic field is stable. The field can be controlled independently at will, or the magnetic field can be continuously scanned. The current mode and the magnetic field mode can be switched at any time according to the needs, and the operation is flexible.
Functions and Features:
1) Bipolar Constant Current Output
l The output current of the power supply can be continuously changed between the positive and negative rated current extremes
l Current smooth zero-crossing without breakpoint, non-switch commutation
l Four-quadrant operation of output current and voltage (suitable for inductive loads)
l The current change rate can be set in the range of 0.0007 to 0.3 F.S./s (F.S. is the extreme value of the rated output current)
l AC input, single-phase 220V±10% (50Hz/60Hz**z) or three-phase 380V±10% (50Hz/60Hz)
The output voltage range is 0-±200V, the output current range is 0-±1000A, and the output power extreme value is 200KW
2) High Current Stability And Low Ripple
l Current stability: better than ±50ppm/h (standard type); better than ±5ppm/h (high stability type)
l Current accuracy: ±(0.01% set value + 1mA)
l Current resolution: 20 bit, for example 15A power supply, current resolution is 0.03mA
l Source effect: ≤ 2.0×10-5 F.S. (when the supply voltage changes by 10%, the output current changes)
l Load effect: ≤ 2.0×10-5 F.S. (when the load changes by 10%, the output current changes)
Current ripple (RMS): less than 1mA
3) Two Output Modes
l Current mode: Directly set the current in the magnet or coil
l Magnetic field mode: directly set the magnetic field size in the magnet or coil
Closed loop adjustment mode, constant magnetic field value
Note: The magnetic field mode needs to cooperate with the company's high-precision gauss meter and probe.
4) Two Ways Of Operation
l Local control adopts high-definition touch screen display and operation
l Remote can be controlled by computer through RS232 interface, RS485, LAN, USB optional
5) Multiple Protection Functions
l Input power failure protection (when the input power fails, the internal protection absorbs the reverse energy of the inductive load)
l Overcurrent protection (automatic drop current, uncontrollable overcurrent will turn off the power output and alarm)
Technical Parameters Of Air-cooled Series Power Supply
Model
JCP-5/40
JCP-5/80
JCP-5/120
JCP-10/40
JCP-10/80
JCP-10/120
Output
Output Type
Bipolar Constant Current Output
Rated Current
±5A
±10A
Rated Voltage
±40V
±80V
±120V
±40V
±80V
±120
Current Stability
Standard type is better than ±50ppm/h; high stability type is better than ±5ppm/h
Current Accuracy
±(0.01% set value + 1mA)
Current Resolution
20 bit
0.01mA
0.02mA
Source Effect
≤ 2.0×10-5 F.S.（When the supply voltage changes by 10%, the output current changes）
Load Effect
≤ 2.0×10-5 F.S.（When the load changes by 10%, the output current changes）
Current Ripple（RMS）
1mA
1mA
Current
Rate Of Change
Predetermined Area
0.0007～0.3 F.S./s
Factory Default
0.5A/s
1A/s
Enter
Power Supply
Single-phase three-wire
Voltage
220VAC ± 10%（50/60Hz）
Power(KVA)
0.3
0.6
0.8
0.6
1.1
1.5
Load
Require
Resistance
≥ 0.6Ω
≥ 2.0Ω
≥ 4.0Ω
≥ 0.6Ω
≥ 2.0Ω
≥ 4.0Ω
Inductance
0～1H
Surroundings
Operating Temperature
0～30℃
Working Humidity
20～90%RH
Cool Down
Cooling Method
Air Cooling
Built-in Gauss Meter（Options）
Measuring Range
0～±30000
Communication
Communication Interface
RS232（RS485, LAN, USB Optional）
Electric
Connect
Input Wire Diameter
10A Standard Power Cord
Output Wire Diameter
≥ 1mm2
≥ 2.5mm2
Size
L*W*H（mm）
520*445*177（4U Chassis）
Weight
17kg
19kg
21kg
17kg
19kg
21kg
Technical Parameters Of Air-cooled Series Power Supply
Model
JCP-15/40
JCP-15/80
JCP-15/120
JCP-20/40
JCP-20/80
JCP-20/120
JCP-25/40
JCP-25/70
Output
Output Type
Bipolar Constant Current Output
Rated Current
±15A
±20A
±25A
Rated Voltage
±40V
±80V
±120V
±40V
±80V
±120V
±40V
±70V
Current Stability
Standard type is better than ±50ppm/h; high stability type is better than ±5ppm/h
Current Accuracy
±(0.01% set value + 1mA)
Current Resolution
20 bit
0.03mA
0.04mA
0.05mA
Source Effect
≤ 2.0×10-5 F.S.（When the supply voltage changes by 10%, the output current changes）
Load Effect
≤ 2.0×10-5 F.S.（When the load changes by 10%, the output current changes）
Current Ripple（RMS）
1mA
1mA
1mA
Current
Rate Of Change
Predetermined Area
0.0007～0.3 F.S./s
Factory Default
1.5A/s
2.0A/s
2.5A/s
Enter
Power Supply
Single-phase three-wire
Voltage
220VAC ± 10%（50/60Hz）
Power(KVA)
0.9
1.5
2.2
1.2
2.1
3.0
1.4
2.2
Load
Require
Resistance
≥ 0.6Ω
≥ 2.0Ω
≥ 4.0Ω
≥ 0.6Ω
≥ 2.0Ω
≥ 4.0Ω
≥ 0.5Ω
≥ 1.0Ω
Inductance
0～1H
Surroundings
Operating Temperature
0～30℃
Working Humidity
20～90%RH
Cool Down
Cooling Method
Air Cooling
Built-in Gauss Meter (option)
Measuring Range
0～±30000
Communication
Communication Interface
RS232（RS485, LAN, USB optional）
Electric
Connect
Input Wire Diameter
10A standard power cord (input>2KVA, use 16A power cord)
Output Wire Diameter
≥ 4mm2
≥ 4mm2
≥ 6mm2
Size
L*W*H（mm）
520*445*177（4U chassis）
Weight
17kg
19kg
21kg
18kg
20kg
22kg
19kg
21kg
Technical Parameters Of Water Cooling Series Power Supply
Model
JCP-50/60
JCP-70/60
JCP-90/70
JCP-130/130
JCP-200/150
JCP-400/150
JCP-1000/100
Output
Output Type
Bipolar constant current output
Rated Current
±50A
±70A
±90A
±130A
±200A
±400A
±1000A
Rated Voltage
±60V
±60V
±70V
±130V
±150V
±150V
±100V
Current Stability
Standard type is better than ±50ppm/h; high stability type is better than ±5ppm/h
Current Accuracy
±（0.01% set value + 1mA）
Current Resolution
20 bit
0.1mA
0.13mA
0.17mA
0.25mA
0.4mA
0.8mA
2.0mA
Source Effect
≤ 2.0×10-5 F.S.（When the supply voltage changes by 10%, the output current changes）
Load Effect
≤ 2.0×10-5 F.S.（When the load changes by 10%, the output current changes）
Current Ripple（RMS）
2 mA
2 mA
2 mA
3 mA
4 mA
10 mA
20 mA
Current
Rate Of Change
Predetermined Area
0.0007～0.3 F.S./s
Factory Default
5A/s
7A/s
9A/s
13A/s
20A/s
20A/s
20A/s
Enter
Power Supply
Three-phase five-wire
Voltage
380AC±10%（50/60Hz）
Power(KVA)
4.0
5.5
8.1
20
36
72
122
Load
Require
Resistance
≥0.2Ω
≥0.1Ω
≥0.1Ω
≥0.2Ω
≥0.2Ω
≥0.1Ω
≥0.02Ω
Inductance
0～1H
Surroundings
Operating Temperature
0～40℃
Working Humidity
20～80%RH，No Condensation
Cool Down
Cooling Method
Water Cooling
Cooling power
0.8 KW
0.8 KW
1 KW
1.5 KW
2.2 KW
4.5 KW
11 KW
Water flow ≥ 3 L/min
Water flow ≥ 3 L/min
Inlet Water Temperature
18～25℃ （related to ambient temperature and humidity）
Built-in Gauss Meter (option)
Measuring Range
0～±30000
Communication
Communication Interface
RS232（RS485, LAN, USB Optional）
Electric
Connect
Input Wire Diameter
≥ 2.5 mm2
≥ 4 mm2
≥ 10 mm2
≥ 16 mm2
≥ 35 mm2
≥ 70 mm2
Output Wire Diameter
≥ 16 mm2
≥ 25mm2
≥ 35mm2
≥ 50mm2
≥ 70mm2
≥ 150mm2
≥ 500mm2
Size
L*W*H（mm）
520*445*445（10U chassis）
Cabinet
Weight
60kg
60kg
60kg
To be tested
Note:
1: The stability of the current is the relative change of the current under the condition that the current is full-scale output, the power supply warm-up time is greater than 30 minutes, and the measurement time is not less than 1 hour.
2: The basic test software is provided free of charge. (Remote input current, set magnetic field) Additional functions need to be charged separately!
3: The output ripple of the current is the rms value of the AC component on the output current measured by KEITHLEY2700.
