Dielectric Frequency Response (DFR) Analyzer

Product Details
Customization: Available
After-sales Service: Life Time Maintenance
Warranty: Life Time Maintenance
Shipping & Policy
Shipping Cost: Contact the supplier about freight and estimated delivery time.
Payment Methods:
visa mastercard discover JCB diners club american express T/T
PIX SPEI OXXO PSE OZOW
  Support payments in USD
Secure payments: Every payment you make on Made-in-China.com is protected by the platform.
Refund policy: Claim a refund if your order doesn't ship, is missing, or arrives with product issues.
Manufacturer/Factory, Trading Company
Secured Trading Service
Gold Member Since 2012

Suppliers with verified business licenses

Audited Supplier

Audited by an independent third-party inspection agency

  • Dielectric Frequency Response (DFR) Analyzer
  • Dielectric Frequency Response (DFR) Analyzer
  • Dielectric Frequency Response (DFR) Analyzer
  • Dielectric Frequency Response (DFR) Analyzer
  • Dielectric Frequency Response (DFR) Analyzer
  • Dielectric Frequency Response (DFR) Analyzer
Find Similar Products

Basic Info.

Model NO.
DRA-3000
Max Diameter of Workpiece
500kv
Mass Scope of Workpiece
500kv
Type
Insulation Oil Filtration System
Maxcapacity
500kv
Accuracy Grade
0.02
Load Way
500kv
Loading Method
500kv
Display
Digital
Control
Computer Control
Weight
17kg
Power Source
Battery
Oil Cylinder Position
Power Test Equipment
Colour
Grey
Transport Package
Plywood Case Outside
Specification
CE
Trademark
GOLDSOL
Origin
China
HS Code
903033200
Production Capacity
20sets/Month

Packaging & Delivery

Package Size
50.00cm * 50.00cm * 60.00cm
Package Gross Weight
45.000kg

Product Description

Sketch
DRA-3000 Dielectric Frequency Response Analyzer (DFR) combines frequency domain and time domain testing methods, enabling users to conduct broadband measurements on equipment in a relatively short time, greatly reducing the workload of on-site testers and improving on-site work efficiency. The maximum DC output voltage of this product can reach 2kV, and the maximum AC output voltage can reach 500V (peak value). At the same time, it supports the PDC method and the FDS method, which can effectively detect the status of high-voltage insulation systems (such as power transformers, bushings, cables, and generators), and can automatically analyze them to determine the moisture content in the insulation materials. It uses a non-destructive method to evaluate the moisture condition of equipment, as an important basis for equipment replacement and other drying measures.

Dielectric Frequency Response (DFR) Analyzer
Main functional features:

1. It has three test channels, and each channel can be freely configured as a high-voltage output/low-voltage input according to the condition of the equipment under test.Both voltage and current can be measured through three channels, and the dielectric loss to ground of the high, medium, and low windings of the three transformer can be measured simultaneously.The combination of the time domain PDC method and the frequency domain FDS method can test the dielectric loss curve in the full frequency domain in a short time.

4. Automatically analyze the test curve, determine the moisture content of the insulation material, and evaluate the equipment's moisture exposure using a non-destructive method.

5. Powered by a 36V10Ah large capacity lithium battery, it does not require external power supply, has low power consumption, long standby time, and can be used portable.

6. The protection functions are complete, with protection functions such as overcurrent, short circuit, overheating, and cable falling off.

7. The host computer is connected to a handheld mobile terminal or notebook computer through wireless communication, achieving wireless intelligent control, and the testing process is safe and convenient.

8. Provide a client that supports Windows systems and APP software that supports Android terminals, and the two types of client data are compatible with each other.

9. Support hardware independent working mode. In the absence of APP software, you can manually start the device for testing and import test records to a USB flash drive.

Dielectric Frequency Response (DFR) Analyzer
Standards
1.GBT5654-2007"Relative Permittivity, Dielectric Loss Factor, and DC Resistivity of Liquid Insulating Materials"
2.GB/T 6587-2012 Measurement of " General Specification for Electronic Measuring Instruments
3.DL/T 962-2005 General Technical Conditions for High Voltage Dielectric Loss Tester
4.GB/T 14217-1993 Capacitor Paper Dielectric Loss Factor Determination method
5.DL/T 596-2005 Preventive Test Procedures for Electric Power Equipment
6.Q/CSG 114002-2011 Preventive Test Procedure for Electric Power Equipment
7.IEC 60422-2013 Mineral insulating oils in electrical equipment - Guidelines for supervision and maintenance.

Main technical parameter
 
Main performance indicators
PDC output voltage Range:0~-2kV,continuous adjustable,waveform raple:≤2%,
accuracy:rated voltage ×2%±10V
PDC output current Range:0~100mA
FDS output voltage Amplitude:±500V(peak),frequency:0.1mHz~10kHz,
frequency accuracy:0.1%
FDS output current Amplitude:±100mA(peak)
Capacitance range 1pF~500μF
Sampling voltage Range:±2kV,Resolution:0.1V,accuracy:range×2%
Samling current Range:2mA,20μA,200nA,2nA,Resolution:10μA,100nA,1nA,10pA,Accuracy:range ×2%
Functional parameters
Measurement mode PDC or FDS methods can be used alone, or combination of both measurement methods can be used simultaneously to obtain comprehensive analysis results
Measurement function Measurement at same time: ,amplitude of 1 to 3 channels of voltage/1 to 3 channels of current, phase, dielectric loss
Measurement method Off-line measurement
Wiring method GST or UST
Voltage output mode High voltage amplifier amplification output
Tablet PC interface WIFI
Computer interface RS232 or USB
Data storage Automatically store data, up to 100 sets of historical data can be stored
System protection With short circuit/overcurrent/overheating/battery over discharge/cable detachment protection function
Power/weight/dimention
Power supply Built-in lithium battery power supply, charger 42V/2A
Host Dimension 405mm(L)×365mm(W)×192mm(H)
Host weight 17kg


Test principle
DRA-3000 dielectric response analyzer can use either the polarization depolarization PDC method or the frequency domain FDS method alone, or both methods can be used at the same time. The PDC curve can be converted into a low-frequency FDS curve through a unique algorithm, and the high-frequency measured FDS curve can form a full-range FDS curve. This allows users to measure the equipment in a relatively short time in a wide frequency range, greatly reducing the workload of on-site testing personnel and improving on-site work efficiency.

1.PDC method
Polarization-depolarization current (PDC)method is a time-domain measurement method for dielectric response. It uses the polarization characteristics of dielectric materials under DC voltage to obtain PDC curves, and studies the relationship between PDC curve changes and aging/water content. The principle of polarization/depolarization current method: When a DC voltage is applied to an insulating dielectric, polarization occurs inside the dielectric, and the internal dipoles are arranged in a directional manner to form a polarization current; After removing the DC voltage and shorting the two electrodes, the polarized charges gradually change from a directional arrangement to a disordered state, generating a depolarizing current.
    Dielectric Frequency Response (DFR) Analyzer
2.FDS method
Frequency domain spectroscopy (FDS) method is to study the polarization characteristics of a medium in the frequency domain, also known as the frequency response method. By applying AC voltage signals of different frequencies to both ends of the insulating medium material, a responsive current signal is generated in the medium. The amplitude and phase of the responsive current signal are measured. Based on the relevant information of the voltage signal, information such as dielectric loss, complex capacitance, and complex dielectric constant of the insulating material is calculated. This information is closely related to the insulation state, and the insulation state can be effectively evaluated by using this information.
Dielectric Frequency Response (DFR) Analyzer


DRA-3000 Test Schematic Diagram

DRA-3000 integrates PDC and FDS methods, and three channels can be freely configured as high voltage output and low voltage input. Each channel can be measured independently.
Dielectric Frequency Response (DFR) Analyzer
Front panel :
1) LED battery power display;
2) LED status display running/charging/copying
3) Power on button;
4) Emergency stop button;
5) Start test/stop test button;
6) Click the data copy button to save test data
7) USB flash disk interface.
8) 3-channel CH1/CH2/CH3 interface.
9) 3-channel status high voltage output/low voltage input indicator.
10) Instrument ground terminal
Dielectric Frequency Response (DFR) Analyzer
Back panel:
1)Fan heat sink;
2)WIFI antenna interface
3)COM debugging interface
4)DC42V2A charging interface
Dielectric Frequency Response (DFR) Analyzer
Accessories
Sr no Description Qty
   1 Host 1  
   2 Tablet PC with app 1
   3 Antenna 1
   4 Charger for host 1
   5 Ground wire with clip 1
   6 Triaxial cable with clip 1
   7 Operating manual 1

Send your message to this supplier

*From:
*To:
*Message:

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now
Contact Supplier