Portable Grounding Fault and AC Inrush DC Fault Finder

• After-sales Service: on-Line Technical Support
• Warranty: 3 Years Warranty
• Test Mode: Point Test
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: HBD-81
• Usage: DC Earth Fault Tester
• Test Region: DC System
• Cable Type: Unshielded
• Power: Electricity
• Certification: CE, FCC
• Customized: Non-Customized
• Insulation Measurement Range: 0-500komh
• Accuracy: 10%
• Spectrum Frequency Range: 0.125-12.5Hz
• Frequency Resolution: 0.125Hz
• Current Measurement Resolution: 0.01 Ma
• Detection Bridge Amplitude: 0mA, 0.25mA, 0.5mA, 1mA, 2mA
• Detection Waveform Type: Sine Wave, Square Wave
• AC and DC Surge Voltage: 0-280V
• Transport Package: Standard Wooden Box
• Specification: analyzer & detector & clamp
• Trademark: HAOMAI
• Origin: China
• Production Capacity: 500/Month
• Package Size: 45.00cm * 40.00cm * 50.00cm
• Package Gross Weight: 20.000kg

Product Description

Technical parameters of the analyzer
Product Name: Portable substation DC System Ground Fault Locator
Model No.: HBD-81
Usage: 220V/110V/48V substation DC system earth fault detect

Product Description

HBD-81 DC Fault Tester is a high-precision DC fault tester. The device is based on the principle of DC current difference detection and introduces fast FFT transformation technology. Through detailed analysis of the amplitude frequency characteristics of the detection quantity, the contradiction between the safety and sensitivity of DC grounding fault detection is balanced. The equipment can detect various insulation faults, DC mutual leakage faults, and AC leakage faults in DC systems of various voltage levels such as 24V, 48V, 110V, 220V, etc.
The equipment consists of an analysis host, a detector, and a current clamp. For different phenomena, DC square wave current clamp and square wave current clamp can be selected.

 

Detailed Photos

Main Features

(1) Can measure the system's positive to ground voltage, system voltage, and voltage monitoring range 0-300V;
(2) It can measure the insulation impedance of the system to ground, detect the size of the balance bridge, and have a detection range of 0-999.9K Ω;
(3) It can measure the AC voltage component that enters the DC system, with a measurement range of 0-280V;
(4) It can measure and display the distributed capacitance of the system in real-time.
(5) It can detect various ring network faults in two bus sections, including positive and negative rings, bipolar rings, and heteropolar rings, and can locate the ring network fault point through waveform display and directional display;
(6) The device can achieve the detection and positioning of high resistance ring network faults through amplitude modulation, frequency modulation, current waveform selection, etc.
(7) It can measure the insulation impedance of each branch to ground, and locate insulation fault points through waveform display and direction display;
(8) Equipped with spectrum analysis function for current changes based on fast FFT transformation technology, efficient sampling, and improved detection accuracy;
(9) The device can be used as a high-precision ammeter, with a measurement resolution of up to 0.01mA;
(10) The equipment can automatically identify the system voltage level and determine the category of ring network faults;
 

Product Parameters

Technical parameters of the analyzer
 

Working power supply	DC40V-300V
DC voltage measurement
DC voltage measurement range	0-300V
DC voltage measurement resolution	0.1V
DC voltage measurement accuracy	0.20%
AC voltage measurement
Measurement of AC and DC surge voltage	0-280v
AC voltage measurement resolution	0.1V
AC voltage measurement accuracy	0.50%
Insulation resistance measurement
Insulation resistance measurement range	0-999.9K Ω
Insulation resistance measurement resolution	0.1K Ω
Insulation resistance measurement accuracy	≤ ± 5%
Detection bridge amplitude adjustment range	0mA, 0.25mA, 0.5mA, 1mA, 2mA
Detection ring network resistance range	within 50K Ω
Measurement of system distributed capacitance
System distributed capacitance measurement range	0-999.9uF
System to ground capacitance measurement	0-1000k Ω
Selection of detection waveform type	sine wave, square wave
Working mode	forced signal start, automatic signal start
Display medium and resolution	TFT, 320x240

Technical parameters of the detector
 

Insulation resistance measurement
Insulation resistance measurement range	0-500K Ω
Insulation resistance measurement resolution	0.1K Ω
Insulation resistance measurement accuracy	≤ ± 10%
Spectrum analysis range
Number of spectral analysis channels	1
Spectrum analysis frequency range	0.125-12.5Hz
Frequency resolution	0.125Hz
Current waveform display cycle	8 seconds;
Detectable feeder current range	0-2A;
Current measurement range	-100-+100mA;
Current measurement resolution	0.01 mA
Display medium and resolution	TFT, 320x240

 

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