Ultra high voltage cable sheath fault locator_Anhui Honglin Instrument Cable Co., Ltd.

Ultra high voltage cable sheath fault locator

Author：hlyb Add Time：2016-05-12 16:53:33

1、 Overview cd-66 UHV cable sheath fault locator can locate UHV cable sheath fault, provide high voltage pulse signal source for UHV cable sheath fault location, and can also be used for sheath DC withstand voltage test. Cd-66 is used together with cd-806 cable fault step voltage pointing instrument produced by our company, which can accurately point the fault of cable sheath. 2、 Functional features 1 Automatic test, large screen LCD directly displays the proportional information of ranging, which is easy to operate and overcomes the disadvantage of difficult balance adjustment of high-voltage bridge. 2. It overcomes the influence of wiring contact resistance on the measurement results and has high ranging accuracy. 3. The core wire can be used for sheath fault location, which overcomes the disadvantage that the high-voltage bridge cannot be located because there is no well insulated sheath on site. 4. Built in high voltage constant current source, the output voltage and current are continuously adjustable, allowing long-term short-circuit operation. 5. It has multiple safety protection functions such as grounding locking and high-voltage zero start. 6. It has two functions: ranging and high-voltage pulse source, which can not only locate the sheath fault, but also provide signal source for the fixed point of sheath fault of EHV cable. 7. The output current is large and can be conveniently used for DC withstand voltage test of protective layer. 3、 Technical index 1. Output voltage: 0 ~ 10kV adjustable. 2. Output current: 0 ~ 100mA adjustable. 3. * * * high output power: 1kW. 4. Ranging accuracy: error ≤ 0.1%; 5. Power supply: AC 220V, 50Hz, 6a. 6. Service conditions: temperature: 0-40 ℃; Humidity 10-90% RH; Altitude < 4500m. 7. Volume: 480mm × 330mm × 360mm。 8. Quality: 15kg cd-86 digital step voltage pointing instrument I. overview cd-86 digital step voltage pointing instrument is an innovative and high-performance intelligent instrument integrating computer technology and digital signal processing technology. It is mainly used for accurate pointing of grounding fault of metal sheath of underground power cable (especially single core high-voltage cable), It can also be used as an auxiliary point for core grounding fault (when the protective layer has been damaged). Cd-86 digital step voltage pointing instrument can also measure the resistive current in the faulty cable in the borehole through the current sensor to locate the cable fault point in sections. Cd-86 needs to be used together with cd-66 cable sheath fault test high voltage source and rangefinder to complete the accurate location of EHV cable sheath grounding fault. Cd-86 has the functions of signal waveform display, fault point direction indication, battery undervoltage indication, automatic shutdown, etc. 2、 Functional features 1 Directly indicate the direction of the fault point and quickly find the fault point. 2. High sensitivity and wide response range. 3. Digital signal processing technology is adopted to directly display the signal waveform, with strong anti-interference ability. 4. Automatic zero adjustment to counteract the influence of ground potential change. 5. Be able to measure the resistive current in the fault cable through the current sensor and segment the fault point. 6. It is equipped with high-performance rechargeable lithium battery, which can work continuously for more than 15 hours after being fully charged. 7. Undervoltage indication function: the power indicator flashes when the battery is undervoltage. 8. Automatic shutdown function: it can automatically shut down when the battery is under voltage or there is no operation for a long time. 9. Solid casing, light and portable. 3、 Technical index 1 Signal receiving mode: voltage signal: probe input; Current signal: current sensor input. 2. * * * * high detection sensitivity: voltage signal 0.1mv; Current signal 5ma3 Signal * * * large input range: probe 300V. 4. Display function: signal waveform, fault point direction, battery level, etc. 5. Power supply: 7.4v, 2400mAh rechargeable lithium battery. 6. Charger power supply: AC 220V ± 10%, 50Hz ± 2Hz. 7. Volume: host 200mm × 100mm × 90mm； probe Φ thirty × 1100mm。 8. Mass: host 0.5kg; Probe 0.5kg. 9. Service conditions: temperature: 0-40 ℃; Humidity 10-90% RH; Altitude < 4500m

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Ultra high voltage cable sheath fault locator