K-800 Ground Fault Locator
About the K-800:
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Kongter’s K-800 Ground Fault Locator is the new model which is developed to fast detect, trace and pinpoint virtual ground faults in LIVE DC systems where electrical cables have breakage with current lost to ground.
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Without signal injection to tested circuit, K-800 is safe during signal tracing. Signal comparison and direction indication make it fast to trace signal fault. Also, low frequency and low current measurement enable it a very high efficiency for LIVE (online) signal tracing to bypass the online interferences.
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Kongter offers multiple options of ground fault locator from basic to advanced models for customers with different application purposes. You could also refer to K-3838 Ground Fault Locator.
Functions:
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Measures voltage between DC system and ground ranging from 0 to 300V.
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Measures grounding resistance up to 999KΩ for both busbars and each branch circuit
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It detects and measures AC voltage which interrupts in DC system. Detection range is from 0 to 288V.
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It performs the function as accurate current meter with resolution up to 0.01mA.
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Arrow indication effectively helps users trace the signal and pinpoint the earth fault.
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Waveform display for tested circuit, indicating insulation status and current changes in tested circuit, it help users fast and effectively locate the point with earth fault.
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It tests and displays distributed capacitance in the system in real time. This helps users bypass the interference for ground fault location.
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Fast signal positioning for the point of earth fault for both negative and positive busbars with the help of waveform and signal direction.
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Signal analyzer has different working modes like amplitude adjustment, frequency adjustment and waveform view which are very helpful for earth fault detection in high resistance grounding.
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The analyzing function of signal frequency spectrum effectively helps extract the testing signal amplitude which makes measurement more accurate.
Specifications:
Signal Analyzer Specification
Operation Environment
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Working Power: DC 40V - 300V
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Temperature: -20℃ to 55℃
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Humidity: 0% - 90%
DC Voltage Measurement
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Measurement Range: 0 - 300V
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Resolution: 0.1V
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Accuracy: ±0.2%
AC Voltage Measurement
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Measurement Range: 0 - 300V
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Resolution: 0.1V
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Accuracy: ±0.5%
Insulation Resistance Measurement
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Measurement Range: 0 - 999.9 KΩ
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Resolution: 0.1 KΩ
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Accuracy: ≤±5%
Measurement Bridge
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Adjustment Range: 0mA, 0.25mA, 0.5mA, 1mA, 2mA, 4mA (optional)
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Frequency Range: 0.25Hz
Grounding Detection
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Measurement Range: Up to 200 KΩ
Distributed Capacitance Measurement
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Measurement Range: 0 - 999 µF
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Measurement Waveform: Square wave & sine wave
Working Mode
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Compulsory signal & automatic signal
Display
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320 × 240 pixels TFT
Power Supply
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Powered by tested circuit
Physical Characteristics
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Weight: 0.448 kg
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Dimensions: 200 × 145 × 75 mm
Signal Detector Specification
Grounding Resistance Measurement
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Measurement Range: 0 - 500 KΩ
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Resolution: 0.1 KΩ
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Accuracy: ≤±10%
Frequency Spectrum Analysis
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Number of Channels: 1
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Frequency Range: 0.125 - 12.5Hz
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Resolution: 0.125Hz
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Display Period of Current Waveform: 8s
Current Measurement
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Measuring Range for Feeder: 0 - 2A
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Current Measurement Range: -100mA to +100mA
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Resolution: 0.01mA
Display
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320 × 240 pixels TFT
Clamp Jaw Size
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Ф30mm, Ф40mm, and Ф10mm (optional)
Power Supply
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5V (4 × AA standard batteries)
Physical Characteristics
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Weight: 0.303 kg
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Dimensions: 215 × 100 × 33 mm
Wireless Communication Specification
Speed
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2 Mbps
Multi-Frequency
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125 frequency points, suitable for multiple-point communication and frequency-hopping communication
Size
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Built-in 2.4GHz antenna (15 × 29 mm)
Power Consumption
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Low power consumption with fast data transmission and startup time to reduce energy use
Application:
K-800 Ground Fault Locator is widely applied in different DC system for ground fault location including:
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Power Utility: DC system with faulty grounding
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Railway and Transit: signal, communication, and locomotive electric equipment
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Industrial Facilities: electric safety equipment for general power distribution applications
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Telecommunication: electronic equipment with earth fault
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Safe to use
It adopts measurement bridge inside the signal analyzer to analyze voltage, current and grounding resistance. No injection of current signal to the tested system. No relay triggering by mistake. -
Ideal for LIVE DC systems
Low frequency measurement , effective bypass the interference caused by online distributed capacitance and other interruption. Ideal for signal tracing when system is ONLINE. -
Direction Orientation
Fast location of ground fault with different working modes. Accurate direction orientation of ground fault in different circuit branches and comprehensive analysis of waveform. -
Different option of CT
Kongter offers different selection of high sensitive current sensors to make it applicable for complicated wiring structure in the field. Very flexible for different DC systems on site. -
Intelligent measurement function
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Signal analyzer can automatically identify system voltage leveling.
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When insulation resistance has any change, signal analyzer could quickly indicate the change.
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Distance will not affect the signal detection once the signal analyzer and detector are synchronized.
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During earth fault detection, current clamp could either clamp on single cable or multiple cables for faster and more effective signal tracing.
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Signal detector will indicate the direction of ground fault on screen once it detects any insulation problem.
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Signal detector and analyzer have wireless communication. Complete measurement could handle different types of insulation problem in DC system.
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Signal analyzer has different working modes like amplitude adjustment and waveform view which are suitable for different complicated applications.
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