Section cable Tester features
Cable fault detector is catering to industrial power sector programmes and the rapid development of the IT age, limitations of the original cable-fault detector, use industrial embedded computer systems, network services, USB communication technology system, which greatly improves the use of functions and utilization value and ease of site operations. Special information for a growing number of underground cable provides a unique set of management software. Package system meet People's Republic of China power industry standard DL/T849.1~ DL/T849.3-2004 power equipment dedicated test instrument General technology conditions, the system test by system host and fault positioning instrument and cable path instrument three part composition, for power cable various fault of test, cable path, cable laid depth of found measuring and cable archives information of daily maintenance management, and with axis communications cable and local cable of open, short-circuit fault of precise test.
First the industrial embedded computer system, the system lithium-powered, easy to carry, easy test.
First a 10.4/12.1-inch large-screen touch system (both optional), the entire computer XP operating platform of integrated software, goodbye to cables with single-chip microcomputer era, and is equipped with software and cables cable fault information management software.
Using the latest USB communication interface, signal stability, the host automatically selects the sampling frequency, which can improve the accuracy, but also meet the test requirements of different length cables.
Software for fault manual card, distance to appear automatically, double cursor movement accurate to 0.15 metres, improve test accuracy.
Powerful processing and network services, test waveform can be any compression, extension, with the screens randomly display two more for you to accurately compare the standard waveform analysis, and reduce errors.
On the choose a wireless network card, can be anywhere, anytime wireless Internet technology services, field testing to provide users with timely, accurate analysis and guidance, expert advice to make you worry-free.
10G many types of physical wiring diagram of wave and field, click to use, cable management can do to improve the archives management of the cable, for maintenance work and provide reference for the precise positioning of the cable and help.
Accurate pointing instrument part of the key, copy Germany technology, distance from the point of failure of direct digital display test, is the same types of Sentinel technology and innovation, in order to quickly and accurately locate cable faults, reduce outage provides a strong guarantee.
The latest development of intellectual composite sampler, replacing the cumbersome field wiring, waveform viewing, easy analysis, complete isolation and high pressure, the host and operator safety features.
One tester technical specifications:
1, To test a variety of different voltage levels, different, different media and materials of power cables of all types of failures, including: open circuit, short circuit, low resistance, high resistance leakage, high resistance of flashover fault.
2, Known any measurable length cable propagation speed.
3, And the depth of the cable can be tested.
Test range: Not less than 40km Minimum test distance (blind spot): 2-5 m
Accurate pointing error: ±0.2m Error: System error of less than ± 1%
Resolution: V/50m; V is the wave velocity m/μ s; Software cursor 0.15 meters. Instrument and sampling frequency: 6.25MHz, 10MHz, 25MHz, 80MHz, (Adaptive pulse width)
Power supply and power consumption: AC 220V±10% 10W; DC 12V (7AH) less than 20W
Standby time: Can be used continuously for 5 hours or so.
Management: User management information detailed archive of all cables in the region: including cable distribution, number, the starting position, depth and time, cable media, joint location, maintenance records, fault reason, test reports, cables, records and other information.
Two Route test instrument specifications
Frequency: 15KHz pure sine wave output power: Pomax ≥ 100W
Output impedance: Zo=Zc (cable properties resistivity) shock: intermittent
Net weight: 8.5kg ambient temperature:-10 ℃ ~ + 40 ¡æ
Overall dimensions: 180mmx300mmx400mm relative humidity: RH ≤ 85% (25 ℃)
1, and the output socket: Instrument air outlet to test signal output cable fault.
2, the output amplitude: Used to adjust the input and output pulse amplitude. Used should be adjusted according to the display the waveform on the screen. Adjust hours, pulse reflection is very small, cannot even be sampled. Control is too large, blip linked no intersections with baseline or baselines will be slash. Before sampling, about 1/3 input amplitude knob and adjusted according to the sampled wave size, resampling.
Cable fault detector section II details
A, System
This cable-fault detector by the test host, the path signal generators, path and locate the signal receiver apparatus consists of several parts.
Test host, including integrated computer, low-voltage pulse generation and processing, distance to test the fault, can also be used to measure the cable length and the speed of radio waves in the cable.
Path signal generator frequency 30KHz, biggest 30V intermittent sine-wave signals, used to find cable logging path.
Path used to receive the signal receiver path signals, used to find trends and estimate cable cable burial depth.
GPS for accurate positioning of points of failure.
Second, the technical performance
1, fault testing system
To test a variety of power cables of all types of faults and coaxial cables and telephone cable open circuit, short circuit faults.
Known any measurable length cable propagation speed.
Measurement distance: not less than 16-kilometer
System error: less than 1 m
Sampling frequency: 25MHz
Minimum resolution: 0.2 m
Test blind: less than 16 m
Power supply: DC 12V (maintenance-free batteries)
Weight: 5Kg
2, the path signal generator
Output frequency: 30KHz
Oscillation mode: intermittent
Output power: 30W
Power supply: 220V ± 10%
Weight: 4Kg
3, GPS
Sensitivity: 50 ω internal resistance of signal source output 300Hz signals, fixed instrument in maintaining the output of 2V, signal to noise ratio is better than the 20:1 of the input signal is not greater than 10 μ v.
Input impedance: not less than 1.2K.
2x2000 ω headphones.
Working voltage: DC9V ± 10%.
Operating temperature:-20 c ~ 70 c