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Series Partial Discharge-free Power Supply

Series Partial Discharge-free Power Supply

Waveform Purity: Low harmonic distortion

Overload Robust: Modular design, impact resistant, zero voltage drop

Fast Dynamic Response: Small voltage drop, fast recovery

Intuitive Operation: LCD touchscreen

Stable Frequency: Quartz oscillator, high precision

Strong Anti-interference: Fiber optic drive, high reliability

Comprehensive Protection: Electrostatic powder coating, conformal coating +

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Product Detail

Overview:

The WF60 series partial discharge-free power supply utilizes an excitation transformer to energize a series or parallel resonant circuit. By adjusting the output frequency of the power supply, the inductor and capacitor in the circuit resonate, and the resonant voltage is the voltage applied to the test specimen. Alternatively, it can directly output through an intermediate transformer to the primary winding of the transformer for induced voltage withstand testing. It is suitable for AC voltage withstand tests and partial discharge tests of all electrical equipment.

Features:

Excellent output waveform: Low voltage harmonic distortion rate and low harmonic content.Strong overload capacity: The power unit is modular and can withstand the surge current of the motor without causing a voltage drop.

Fast dynamic response: Small transient voltage changes under sudden load changes, and fast recovery time.Intuitive display and easy operation: It uses an LCD touch screen with both Chinese and English language options.

Excellent stability: High frequency stability, generated by a quartz oscillator, resulting in a very stable and precise frequency.

Strong anti-interference capability: Utilizing fiber optic drive control, it possesses extremely strong resistance to electromagnetic interference and high reliability.

High protection level: The equipment cabinet surface is treated with electrostatic powder coating, and the PCBs are treated with conformal coating and potting compound.

Circuit Block Diagram:

Application industries:

This equipment is used for AC withstand voltage and partial discharge testing in applications such as transformers, circuit breakers, switches, GIS systems, cables, bushings, and insulating terminals.

Product Applications:

External Dimensions:

Product Model	External Dimensions（ mm）			Schematic diagram of the external appearance
Product Model	W	D	H	Schematic diagram of the external appearance
WF60-31100	400	650	800
WF60-31150	400	650	800
WF60-31200	500	820	1100
WF60-31300	500	820	1100

Product Model	External Dimensions（ mm）			Schematic diagram of the external appearance
Product Model	W	D	H	Schematic diagram of the external appearance
WF60-31450	520	1160	1360
WF60-31600	520	1160	1360
WF60-311000	650	1420	1470

Product Model	External Dimensions（ mm）			Schematic diagram of the external appearance
Product Model	W	D	H	Schematic diagram of the external appearance
WF60-312000	1900	1100	1970
WF60-313000	1900	1100	1970
WF60-314000	1900	1100	1970

Product Model	External Dimensions（ mm）			Schematic diagram of the external appearance
Product Model	W	D	H	Schematic diagram of the external appearance
WF60-33100	500	820	1100
WF60-33200	500	820	1100
WF60-33300	520	1160	1360
WF60-33450	520	1160	1360
WF60-33600	650	1420	1470
WF60-33900	650	1420	1470
WF60-331000	650	1420	1470
WF60-331200	650	1420	1470
WF60-331500	650	1420	1470

Product Model	External Dimensions（ mm）			Schematic diagram of the external appearance
Product Model	W	D	H	Schematic diagram of the external appearance
WF60-332000	1550	850	1985
WF60-333000	1550	850	1985

Product Model	External Dimensions（ mm）			Schematic diagram of the external appearance
Product Model	W	D	H	Schematic diagram of the external appearance
WF60-334000	1900	1100	1970

Technical Parameters:

Unit Type	WF60-31100			WF60-31150	WF60-31200	WF60-31300	WF60-31450
Rated Power	10kVA			15kVA	20kVA	30kVA	45kVA
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 (protective earth)
Voltage Range		0~800VL-N（ Standard configuration）/0~1000VL-N（Optional features）
Current Range		12A		18A	25A	37A	60A
Frequency Range		Fixed frequency: 50/60Hz, Variable frequency: 30~300Hz
Source Effect		≤ 0.1%F.S
Load Effect		≤ 0.1%F.S
Voltage Accuracy		≤ 0.1%F.S
Frequency Accuracy		≤ 0.01%F.S
Voltage Harmonic		≤ 2%
Response Time		≤ 5ms
Partial Discharge Quantity		≤20 pC (standard) / ≤10 pC (optional) / ≤5 pC (optional)
Device Efficiency		≥ 90%
Overload Capacity		120%-150%, 1 minute; 150%-200%, 2 seconds; ≥200%, immediate output shutdown.
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 prot ection, 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
Power Supply (WDH）mm	400650800 （With wheels）			400650800 （With wheels）	5008201100 （With wheels）	5008201100 （With wheels）	52011601360 （With wheels）
Filter（WDH）mm	600400162			600400162	600400162	600400162	1000572162

Unit Type	WF60-31600				WF60-311000	WF60-312000	WF60-313000	WF60-314000
Rated Power	60kVA				100kVA	200kVA	300kVA	400kVA
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
Voltage Range		0~800VL-N（ Standard configuration）/0~1000VL-N（Optional features）
Current Range		75A			125A	250A	375A	500A
Frequency Range		Fixed frequency: 50/60Hz, Variable frequency: 30~300Hz
Source Effect		≤ 0.1%F.S
Load Effect		≤ 0.1%F.S
Voltage Accuracy		≤ 0.1%F.S
Frequency Accuracy		≤ 0.01%F.S
Voltage Harmonic		≤ 2%
Response Time		≤ 5ms
Partial Discharge Quantity		≤ 20pC（ Standard configuration）/ ≤ 10pC（Optional features）/ ≤ 5pC（Optional features）
Device Efficiency		≥ 90%
Overload Capacity		120%-150%, 1 minute; 150%-200%, 2 seconds; ≥200%, immediate output shutdown.
System Function
Online Adjustment Function	Output voltage and frequency can be adjusted online.
Quick Settings Function	Multiple output voltages and frequencies can be customized.
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@＞ 2000m Reduced usage
Power supply (WDH)mm	52011601360 （With wheels）				65014201470 （With wheels）	15508501985 （With wheels）	15508501985 （With wheels）	190011001970
Filter（WDH） mm	1000572162				1000572162	1300700260	1300700260	1300700260

800*500*162 800*500*162

Unit Type	WF60-33100		WF60-33200	WF60-33300	WF60-33450	WF60-33600	WF60-33900
Rated Power	10kVA		20kVA	30kVA	45kVA	60kVA	90kVA
Input AC Indicators
Power Supply Format	Three-phase four-wire + PE (protective earth)
Voltage Range	380V(±15%）
Frequency Range	50/60Hz(±10%）
Output AC Characteristics
Power Supply Format	Three-phase four-wire
Voltage Range	0~800VL-L（ Standard configuration）/0~1000VL-L(Optional features）
Current Range	7A		14A	21A	32A	42A	63A
Frequency Range	Fixed frequency: 50/60Hz, Variable frequency: 30~300Hz
Source Effect	≤ 0.1%F.S
Load Effect	≤ 0.1%F.S
Voltage Accuracy	≤ 0.1%F.S
Frequency Accuracy	≤ 0.01%F.S
Voltage Harmonic	≤ 2%
Response Time	≤ 5ms
Partial Discharge Quantity	≤20 pC (standard) / ≤10 pC (optional) / ≤5 pC (optional)
Device Efficiency	≥ 90%
Overload Capacity	120%–150%, 1 minute; 150%–200%, 2 seconds; ≥200%, immediate output shutdown.
System Function
Online Adjustment Function	Output voltage and frequency can be adjusted online.
Quick Settings Function	Multiple output voltages and frequencies can be customized.
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
Power supply (WDH)mm	5008201100 （With wheels）		5008201100 （With wheels）	52011601360 （With wheels）	52011601360 （With wheels）	65014201470 （With wheels）	65014201470 （With wheels）
Filter（WDH） mm	800500162		800500162	1000600162	1000600162

Unit Type	WF60-331000			WF60-331200	WF60-331500	WF60-332000	WF60-333000	WF60-334000
Rated Power	100kVA			120kVA	150kVA	200kVA	300kVA	400kVA
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		Three-phase four-wire
Voltage Range		0~800VL-L（ Standard configuration）/0~1000VL-L（Optional features）
Current Range		72A		86A	108A	144A	216A	288A
Frequency Range		Fixed frequency: 50/60Hz, Variable frequency: 30~300Hz
Source Effect		≤ 0.1%F.S
Load Effect		≤ 0.1%F.S
Voltage Accuracy		≤ 0.1%F.S
Frequency Accuracy		≤ 0.01%F.S
Voltage Harmonic		≤ 2%
Response Time		≤ 5ms
Partial Discharge Quantity		≤ 20pC（Standard configuration）/ ≤ 10pC（Optional features）/ ≤ 5pC（Optional features）
Device Efficiency		≥ 90%
Overload Capacity		120%~150% ， 1min； 150%~200% ，2s ；≥ 200% ， Immediately shut off the output.
System Function
Online Adjustment Function	Output voltage and frequency can be adjusted online.
Quick Settings Function	Multiple output voltages and frequencies can be customized.
Memory Function	After a power outage and subsequent restoration, the device can remember the last output mode and parameters.
Protection Function	Input undervoltage and overvoltage protection, phase loss protection; output overvoltage, overcurrent, overload, and short-circuit protection; internal overtemperature protection, etc.
Display and Communication
Local Operation			LCD display
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 of -20℃ to 45℃ and relative humidity of 0 to 95%.
Cooling Method	Fan-forced air cooling
Protection Level	IP 20
Altitude	≤ 5000m@＞ 2000mReduced usage
Power supply (WDH)mm	65014201470 （With wheels）			65014201470 （With wheels）	65014201470 （With wheels）	15508501985 （With wheels）	15508501985 （With wheels）	190011001970
Filter（WDH） mm	1000600162			1000600162	1000600162	1300770260	1300770260	1300770260

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