Wrindu

Cable Fault Locator System Trolley Type

The Cable Fault Locator System Trolley Type, a pinnacle of innovation, utilizes modern power electronics for cable fault testing. Ideal for voltage levels up to 35kV, it precisely measures various cable faults.
Model: RDCD-Ⅱ

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OVERVIEW

 

Our RDCD-Ⅱ Trolley – type Cable Fault Locator System is the result of years of continuous improvement and innovation.Employing modern power electronic technology, it stands as a leading product in the field of cable fault testing instruments globally. It is mainly used to measure the distance, find the path, and locate main insulation faults in power cables with voltages of 35kV and below, Moreover, it can measure low resistance, short circuits, open-circuit faults in various cross-sectional high-frequency coaxial cables, telephone cables, streetlight cables, and buried wires. Additionally, This Cable Fault Locator System Trolley Type detects high-resistance leakage and high-resistance flashover faults. The system comprises four units: RDCD-Ⅱ/502 Cable Fault Pre-locator, RDCD-Ⅱ/535T Cable Test High Voltage Signal Generator, RDCD-Ⅱ/503D Cable Fault Locator, and RDCD-Ⅱ/507 Underground Pipeline Detector.

 

CHARACTERISTIC

 

  • It is controlled by a 12 – inch industrial – grade computer and supports touch operation;
  • It runs on the Windows operating system and has a powerful cable management system that can generate test reports automatically;
  • Features distance and speed measurement functions;
  • Automatic continuous sampling, never missing any discharge waveform;
  • Supports multiple testing methods: low-voltage pulse method, high-voltage flashover method, multi-pulse method;
  • Massive storage of test waveforms for easy retrieval and viewing in the specified order;
  • Simultaneously displays fault point waveform and full-length open-circuit waveform, improving accuracy in fault distance determination;
  • Built-in polymer lithium battery can work continuously for over 4 hours;
  • Automatically displays eight pulse transmissions and fault reflection signals, eliminating testing blind spots, and simplifying fault characteristic waveforms.

 

FAQ

 

Q: How do you locate a cable fault?

A: Fault location in a cable typically begins with the testing of the cable for faults. During the testing process, flashovers are generated at weak points in the cable, allowing for precise localization of the fault.

 

Q: How do you find a fault in an electrical cable?

A: Multiple cable fault detection methods exist, such as time domain reflectometry, bridge methods, and surge methods. The thumper tester, also known as the underground cable fault locator, is recognized as the most efficient tool for this purpose. By generating high-energy pulses and analyzing reflections, it provides precise and effective fault localization.

 

Q: What tool locates cable faults?

A: A cable fault locator, also known as a thumper tester, is the primary tool for locating cable faults. It operates by generating high-energy pulses to identify faults through reflected signals, offering efficient and precise fault localization.

 

Q: How do we test if a cable is faulty?

A:Testing for cable faults involves a comprehensive approach:

1. Visual Inspection: Check for visible damage.
2. Insulation Resistance Test: Use a megohmmeter to measure insulation resistance.
3. Continuity Test: Verify electrical continuity.
4. TDR: Estimate fault distances with Time Domain Reflectometry.
5. Fault Locator: Apply high-voltage surges for pinpointing faults.
6. Sheath Testing: Identify sheath faults if applicable.
7. Thermal Imaging: Detect temperature anomalies.
8. Acoustic Methods: Listen for fault-associated sounds.
9. Excitation Test: Assess the cable’s electrical response.
10. Voltage Drop Test: Measure under load conditions.

Tailor tests to cable-type suspected faults, and adhere to safety standards throughout.

 

APPLICATION

 

Cable Fault Locating Equipment Manufacturers Cable Earth Fault Locator
Picture Cable Fault Locating Equipment Manufacturers
Model RDCD-Ⅱ/502 Cable Fault Pre-locator

 

Sampling rate 60MHz, 120MHz, 240MHz
Pulse amplitude 400Vpp
Pulse width 0.1uS and 2uS
Measuring distance The testing distance is 60km
Reading resolution 0.1m
                                                                                                                                           Test accuracy: less than 0.5m
The length of the test cable is Test cable length: <1km (short – distance); <3km (medium – distance); >3km (long – distance) (test low – voltage pulse amplitude: 400Vpp)
Impulse couplers withstand voltage 38kV DC
The reflected signal sent by the pulse coupler is automatically displayed, and the full-length waveform of the cable open circuit is displayed at the same time. So that the representation of fault characteristic waveform is extremely simple. There is only one high-resistance fault waveform, that is, the short-circuit fault waveform similar to the low-voltage pulse method, which automatically displays the fault distance and has no test blind area.

 

 

Picture Cable Fault Locator Kit
Model RDCD-II/535T Cable Test HV Signal Generator
Impulse High Voltage 0 ~ 32kV, 0 ~ 16kV, 0 ~ 8kV
High Voltage Division The voltage accuracy is 1.5
Built-in Capacitor 4μF/32kV, 16μF/16kV, 64μF/8kV three-stage adjustment
Discharge Power 2048J
Impact Time Impact automatically for about 5 seconds, and impact manually for any control time
Impact Power 2kVA
Operating Power Supply AC 220V±10% 50Hz±2Hz
Environment -20 ~+50℃

 

 

Picture Portable Cable Fault Location System

 

Model RDCD-II/503D Cable Fault Locator
Acoustic synchronous fixed-point function
Sound channel Bandwidth: Full 100 Hz ~ 1500 Hz; Low pass: 100 Hz ~ 400 Hz

High pass: 150 Hz ~ 1500 Hz; Band pass 200 Hz ~ 600 Hz

Signal gain: 0 -7 adjustable

Fixed point accuracy: 0.1m

(2) Magnetic field channel 0 -7 adjustable
Acoustic synchronous background noise reduction mode (BNR)
The bar chart of sound intensity indicates that the threshold of the sound trigger (0 ~ 100) can be adjusted.
The bar chart of electromagnetic intensity indicates that the magnetic field trigger threshold (0 ~ 100) can be adjusted, and it has the function of a magnetic field trigger prompt.

 

Acoustic magnetic time difference method positioning mode: waveform display, acoustic magnetic time difference display.
Path auxiliary test: the path direction can be indicated by icons on the left and right sides of the cable.
Power supply
Battery Built-in lithium-ion battery pack, voltage 8.4V, capacity 4.4Ah
Use time continuous use time > 8 hours
Charger Input AC 220V±10%, 50Hz;; Nominal output 8.4V, 1A
Charging time < 6 hours
Display mode 7-inch color LCD with 1024*600 resolution and touch function
Volume Host 250mm×160mm×160mm
Mass 0.6kg;of main engine; 1.4kg sensor
Operating environment temperature -25℃-40℃, humidity 5-90% RH, altitude < 4500m.

 

 

Picture Power Cable Fault Locator System
Model RDCD-Ⅱ/507 Pipeline Detector
Transmitter
Operating frequency Low frequency, intermediate frequency, high frequency, radio frequency 50Hz
Antenna mode Wave trough method (vertical coil) and wave crest method (horizontal coil)

 

Sound indication FM tone that varies with signal strength
Current indication Shows the effective current value of the cable under test (unit: mA)
Operating temperature -10℃ ~+55℃
Battery Rechargeable battery
Electric quantity indication Graphic display
Signal strength Ladder diagram, digital range 0 ~ 999
Gain control Manual adjustment with a dynamic range of 100db
Detection depth The maximum detection is not less than 10m
Maximum detection distance The cable with good insulation can reach 15km in the direct connection method
Depth measurement Press the depth key to display three digits, and the maximum measurable depth can reach 2.5 meters
Accuracy * low frequency: (1 ~ 5) % ≤ 2.5m. Radiofrequency: (5 ~ 12) % ≤ 2.5m
* Depends on the site environment, the shape of the non-concentric line, the number of adjacent pipelines, and the return current of the soil
Receiver
Operating frequency Low frequency, intermediate frequency, high frequency, and radio frequency
Working modes Direct connection method, coupling method, and induction method
Load 5 Ω ~ 3,000 Ω
Impedance display Five digits
Over Current Automatic protection
Battery Rechargeable battery
Operating temperature -10℃ ~ 55℃

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