Top VFSR Variable-frequency Resonance Voltage Withstand Device Manufacturer in China

Variable-frequency Resonance Voltage Withstand Device

If you’re searching for the best variable frequency resonance voltage withstand devices (VFSR) in China, look no further than DEMIKS. As an industry-leading manufacturer and supplier, we guarantee reliable, high-quality products and services tailored to your requirements. Our variable frequency resonance voltage withstand devices are unmatched for precision and safety during your operations. Rely on DEMIKS for all your testing equipment.

VFSR Variable-frequency power source DBP-DL-6kVA

Operation is managed through a built-in touch screen which enhances control and boosts effectiveness. Sufficient permitting of safeguards permits automated testing along with test program creation. The entire process is harmless, stable, and failsafe.
Autonomously tracks the fluctuation of the system to manage the voltage during the full range of output (20—300Hz). Meanwhile protecting from under/over-voltage, over current, flash-over, and power loss safeguarding constructs, the entire operation remains efficient.
Permits enhanced tracking for mic monitoring with current/voltage supply alongside high voltage output frequency. These parameters, along with many others, are displayed on a clear LCD screen enhancing user experience. Tracking further aids in control, thus all data is automatically saved.
Sufficient transportation, paired with protective housing from over-voltage, over-current, flash-over aids in providing long term internal structural robustness.

Item	Value
Rated output capacity	6kW
Working Power supply	220V/380V
Output Voltage	0 ~400V
Output waveform	sine wave
Voltage resolution	0.01kV
Voltage Measuring Accuracy	0.50%
Frequency Adjusted Range	30 ~300Hz
Frequency Adjusted Resolution	≤0.1Hz
Frequency Stability	0.10%
Running time	continuous 60min under rated capacity
The maximum temperature of components running continuously for 60min under the rated capacity≤ 65k;

Variable-frequency Series Resonance power source DBP-DL-15kVA

Easy Operation: There is an embedded touch screen for selection which with menus simplifies the operation, gives a human-machine interaction design ergonomics, and an intuitive interface.
Higher Order Testing Functions: There are automatic frequency scanning (20-300Hz), resonance tracking, customizable test programs, and automatic data saving with query functions enabled.
Complete Safety Protections Available: Covers over-voltage, over-current, flash-over, and power-off protections providing additional safeties for the users, the equipment and the components.
Dependable Performance: Ensures the operation is stable, safe, and becomes durable with the simulation testing done, a robust structure internally, and the clear LCD display showing parameters real time

DXC-101 Transformer Control Box - 1

DXC-101 Transformer Control Box - 2

DXC-101 Transformer Control Box - 3

DXC-101 Transformer Control Box - 4

DXC-101 Transformer Control Box - 5

DXC-101 Transformer Control Box - 6

Item	Value
Rated output capacity	15kW
Working Power supply	220V/380V
Output Voltage	0 ~400V
Output waveform	sine wave
Voltage resolution	0.01kV
Voltage Measuring Accuracy	0.50%
Frequency Adjusted Range	30 ~300Hz
Frequency Adjusted Resolution	≤0.1Hz
Frequency Stability	0.10%
Running time	continuous 60min under rated capacity
The maximum temperature of components running continuously for 60min under the rated capacity≤ 65k;

DBP-DL-270kVA/270kV/45kV VFSR AC Resonant System

Product Purpose: The DBP-DL series device performs voltage withstand testing on primary electrical apparatuses which includes transformers and GIS systems, SF6 switches, CT/PT devices, insulators, cables, and within the voltage levels of 220 kV and below.
Core Technology: Series resonance technology and a variable frequency power supply control box, excitation transformer, reactor, capacitor divider, and compensation capacitor are some of the core technologies used.
Key Features: Innovations in the electrical insulation and mechanical strength features of the variable frequency power control box provided improved functionality for its stable output and more flexible modes of operation.
Versatility: Each control box is equipped with a single-phase 220V three-phase 380V input making them versatile with multi-purpose functionality.

DBP-DL-270kVA/270kV/45kV -1

DBP-DL-270kVA/270kV/45kV -2

DBP-DL-270kVA/270kV/45kV -3

DBP-DL-270kVA/270kV/45kV -4

Technical Description	Parameter(Value)
Rated Capacity	270kVA
Input Power Supply	220/380V 50/60Hz
Rated Voltage	45kV;90kV; 135KV; 270KV
Rated Current	6A;3A; 2A;1A
Working Frequency	0~300Hz
Waveform Distortion Rate	output voltage waveform distortion rate≤1%
Working Time	continuous operation 60min is allowed under rated load; Over-voltage 1.1 times for 3 minutes
Temperature Rise	The temperature rise ≤65k after continuous operation under rated load for 60min;
Quality Factor	Device itself Q≥30(f=45Hz)
Protection Function	Over-current,over-voltage and flash-over protection (see frequency conversion power supply for details)
Measurement accuracy	Effective value of the system is at level 1.5

Variable-frequency AC Resonant test system DBP-DL-108kVA/108kV/27kV

Product Purpose: With regard to the voltage withstand tests for primary electrical equipment in 220kV and below substations, the DBP-DL series device serves the primary voltage supervising transformers, GIS systems, SF6 switches, CT/PT, insulators, cables and others.
Core Technology: Series resonance methods are applied with the following components: variable frequency power supply control box, excitation transformer, reactor, capacitor divider and compensation capacitor.
Key Features: High strength to weight ratio fusible reactors and strength and electrical isolation to weight ratio power control boxes.
Versatility: Allows for single-phase 220V and three-phase 380V inputs, provides numerous configurations tailored to different test needs, as well as high versatility and functionality at a lower cost

Variable-frequency power source DBP-DL-108kVA/108kV/27kV -1

Variable-frequency power source DBP-DL-108kVA/108kV/27kV -2

Variable-frequency power source DBP-DL-108kVA/108kV/27kV -3

Variable-frequency power source DBP-DL-108kVA/108kV/27kV -4

Technical Description	Parameter(Value)
Rated Capacity	108kVA
Input Power Supply	220/380V 30/60Hz
Rated Voltage	45kV;90kV; 135KV; 270KV
Rated Current	6A;3A; 2A;1A
Working Frequency	0~300Hz
Waveform Distortion Rate	output voltage waveform distortion rate≤1%
Working Time	continuous operation 60min is allowed under rated load; Over-voltage 1.1 times for 3 minutes
Temperature Rise	The temperature rise ≤65k after continuous operation under rated load for 60min;
Quality Factor	Device itself Q≥30(f=45Hz)
Protection Function	Over-current,over-voltage and flash-over protection (see frequency conversion power supply for details)
Measurement accuracy	Effective value of the system is at level 1.5

DBP-DL-216kVA/108kV/27kV VFSR AC series Resonance system

Purpose & Application: The DBP-DL series is used for voltage withstand testing of primary electrical equipment in substations (up to 220kV) such as transformers, GIS systems, SF6 switches, CT/PT, insulators, and cables.
Technology & Components: Employs series resonance technology, power supply control box for variable frequency, excitation transformer, reactor, capacitor divider, and compensation capacitor.
Key Features: Lightweight and compact design of the reactor with high mechanical strength and insulation; versatile and robust controllable non-sparking variable frequency power supply equipped with reliable protection, high output stability, and multi-function mode multi-channel flexible operation.
Versatility & Efficiency: Accepts single-phase 220V or three-phase 380V as input, gives appropriate flexible arrangements for multiple test items, and maintains low cost and multifunctional efficiency

DBP-DL-216kVA/108kV/27kV -1

DBP-DL-216kVA/108kV/27kV -2

DBP-DL-216kVA/108kV/27kV -3

DBP-DL-216kVA/108kV/27kV -4

Technical Description	Parameter(Value)
Rated Capacity	216kVA
Input Power Supply	220/380V 30/60Hz
Rated Voltage	45kV;90kV; 135KV; 270KV
Rated Current	6A;3A; 2A;1A
Working Frequency	0~300Hz
Waveform Distortion Rate	output voltage waveform distortion rate≤1%
Working Time	continuous operation 60min is allowed under rated load; Over-voltage 1.1 times for 3 minutes
Temperature Rise	The temperature rise ≤65k after continuous operation under rated load for 60min;
Quality Factor	Device itself Q≥30(f=45Hz)
Protection Function	Over-current,over-voltage and flash-over protection (see frequency conversion power supply for details)
Measurement accuracy	Effective value of the system is at level 1.5

VFSR Variable-frequency Series Resonant System DBP-DL-540kVA/270kV/27kV

Product Purpose: The scope of the DBP-DL series device covers voltage withstand tests for primary electrical equipment in substations (220kV and below) like transformers, GIS, SF6 switches, CT/PT devices, insulators, as well as cables.
Key Features: Comprising a variable frequency power supply control box, excitation transformer, reactor, capacitor divider, and compensation capacitor, the equipment utilizes the series resonance principle.
Advantages: Offers elevated tangible value with regard to compactness and weight of the reactor, high mechanical strength, exceptional electrical insulation, and versatile operational modes with strong power control box output.
Power Flexibility: Cost-effective three-phase 380V multi-purpose enhancement for on-site work.

Variable-frequency power source DBP-DL-540kVA/270kV/27kV -1

Variable-frequency power source DBP-DL-540kVA/270kV/27kV -2

Variable-frequency power source DBP-DL-540kVA/270kV/27kV -3

Variable-frequency power source DBP-DL-540kVA/270kV/27kV - 4

Technical Description	Parameter(Value)
Rated Capacity	270kVA
Input Power Supply	220/380V 50/60Hz
Rated Voltage	45kV;90kV; 135KV; 270KV
Rated Current	6A;3A; 2A;1A
Working Frequency	0~300Hz
Waveform Distortion Rate	output voltage waveform distortion rate≤1%
Working Time	continuous operation 60min is allowed under rated load; Over-voltage 1.1 times for 3 minutes
Temperature Rise	The temperature rise ≤65k after continuous operation under rated load for 60min;
Quality Factor	Device itself Q≥30(f=45Hz)
Protection Function	Over-current,over-voltage and flash-over protection (see frequency conversion power supply for details)
Measurement accuracy	Effective value of the system is at level 1.5

Understanding the Variable Frequency aC resonant test Drive: A Comprehensive Guide

Reconfigurable Electric Drives (VFDs) are an industrial and commercial necessity for the meticulous management of electric motors because of their economical use of energy and flexibility. It enhances process efficiency whilst minimizing equipment wear and tear and reducing overall energy consumption.