MRD196-H Grounidng Fault Locator (small size)

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Place of Origin:

He BeiChina (Mainland)

Brand Name:


Model Number:




Measurement range:


Testing accuracy 1:

distance < 1km test error ≤1m

Testing accuracy 2:

distance > 1km test error ≤0.5%

Testing blind point:


Charging time:

4 hours

Continuous operating time:

10 hours

Dimension (mm)::






Packaging & Delivery

Packaging Detail:Carton
Delivery Detail:5-7 DAYS


MRD-196H series fault wire location device of low current adpots 80C 196 single-chip mirocomputer for analyzing, applicable to 0.38KV~66KV power system of unground or ground via arc-suppression coil as well as via neutral ground resistor. No matter metal grounding, gap grounding, arc flash grounding or accompanied ferromagnetic resonance grounding, it could accurately locate the grounding wire without limit to wire-out way (over-head line or underground cable line) 




TM500 Power Cable Fault Locator adopts international advanced electronic testing technologies and SCM technology, and combines low-voltage pulse reflection and pulse current testing methods, is suitable for the precise range finding of power cable high resistance, flashover, disconnection, and low resistance.


Low-voltage pulse reflection method applies to test the range of the low resistance and broken line, and the length and wave velocity of various cables. Pulse current testing method can be divided into breakthrough high-voltage flashover and DC high-voltage flashover for the high resistance and flashover cable fault finding.





1.Combines low-voltage pulse reflection and pulse current testing methods, is suitable for the precise range finding of power cable high resistance, flashover, disconnection, and low resistance.


2.With high degree of intelligence, it can automatically determine whether the failure point discharge or not and automatically calculate the fault distance.


3.Compare with the traditional flash measurement instrument, which use resistance and capacitance divider measuring pulse voltage signals, the current sensor tests the pulse current signals in the grounding line with simple and convenient wiring, and good security with isolation of high-voltage equipment and the electrical circuit.


4.High testing accuracy:

When the distance < 1km, the test error ≤1m

When the distance > 1km, the test error  ≤0.5%.


5.English menu, easy to master and use.


6.It can preserve 20 testing waveforms permanently, no loss after the shutdown, is a replacement of printer. With a clock logo, you can read waveform file easily.


7.Using a large LCD screen with backlight. Adjusting LCD display brightness through pressing keys.


8.Rechargeable nickel-metal hydride batteries, automatic charger management.


9.Small size, light weight, and portable design





Measurement range: 10km

Testing accuracy:   distance < 1km        test error ≤1m

                       distance > 1km         test error  ≤0.5%

Testing blind point: <10m

Charging time: 4 hours

Continuous operating time: 10 hours

Power: 2W

Operating temperature:-10--+40 degree

Dimension (mm):235*190*110

Weight: 2kg



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Q:Design all equipment in the power system
Primary equipment is:The power plant and substation, generator transformer (step-up / step-down transformer), busbar, circuit breaker, isolating switch, current transformer, voltage transformer, insulator, reactor, lightning protection equipment (arrester, lightning), grounding device, electric energy metering.Business side: step-down transformer, circuit breaker, isolating switch, current transformer, voltage transformer, insulator, lightning protection and grounding device, the internal power supply generator, reactive power compensation cabinet, electric energy metering,
Q:Is the installation of railway communication, signal and power related to mechanical and electrical engineering
3, in fact, including the power of the two professional: power and electrification. Including contact network infrastructure, post, wire rack, remote control, lightning protection system, station lighting intelligent control etc..Belong to the scope of the installation should be the station (communication station) equipment into the test, the basis of processing and installation, equipment installation, commissioning of the single body, the electrical subsystem Unicom debugging, the whole system of professional debugging unicom. And other railway professional with the commissioning test, etc..
Q:The difference between electric load and power supply capacity
There is a correlation coefficient between them, the power supply capacity = power load * demand coefficient.
Q:What is the importance of annual maintenance of electrical equipment
Two, power equipment testing overviewElectrical equipment preventive testing refers to the equipment has been put into operation according to the stated experimental conditions (test equipment, such as the provisions of the environmental conditions, test methods and test voltage etc.), regularly check the test items, test period ofOr test to find out the hidden trouble of the electric equipment in operation, prevent the accident or the damage of the electric equipment. It is an important measure to judge whether the power equipment can be put into operation and ensure the safe operation.With the rapid development of social economy, the rapid development of science and technology, the range of power equipment testing, equipment and technology are advancing with the times. A set of equipment "health index" including its electrical characteristics and mechanical characteristics of the two part of the contents of the groupAs a result, and can not get the power equipment in the power of the electrical characteristics of the "health value" this problem has been plagued by power users for many years. The emergence of a new condition monitoring technology solves this problem. Not only extends the powerThe concept of equipment testing, but also to fill the blind spot in the field of power equipment testing. The conventional power outage detection and monitoring technology complement each other, to provide a full range of data support for the reliable operation of power equipment.
Q:What is the concentrator of the power set
There are two types of remote meter reading devices in electric power generation: one is low voltage set, called concentrator, the other is called terminal. The concentrator role is the number of meter data, first by the carrier or 485 communication way to collect the equipment, and then through the cable (optical fiber) or wireless network (cdma/gprs) transmitted to the main station.
Q:Withstand voltage test, power equipment insulation unqualified reasons?
Test methods and voltage measurement methods are not correct. For example, when the transformer is tested, the non - Test winding is not connected to the ground, and the non - tested winding may be discharged to the ground. For example, the test of large capacity test, the voltage is still on the low side of the measurement, due to the capacitive effect, the actual increase in the voltage on the test sample over the test voltage, resulting in the breakdown of the subject matter, misjudgment is not qualified.
Q:What are the two devices in the power system
Connect the two device circuit, called the two line. In the two line of DC is generally used for communication detection equipment, such as PABX, PDH, MUX, generally for 48V DC power supply, AC line for AC equipment use
Q:Pre checking and checking of goods in power system
That is one of the effective means to ensure the safe operation of electrical equipment. Over the years, the power sector and power equipment of large industrial and mining enterprises are basically in accordance with the rules of the preventive test of power equipment issued by former Ministry of electric power "(hereinafter referred to as the" Regulations ") requirements for testing, the timely detection and diagnosis equipment defects play an important role.
Q:On the nameplate of the electrical equipment, what does ith UE ie mean?
Electrical equipment consists of two parts: power supply and power equipment. The power supply comprises a storage battery, a generator and a regulator thereof. The utility model comprises a starting system of an engine, an illumination, a signal, an instrument, etc., and also comprises an ignition system of the engine.
Q:Power equipment are used, can help to divide some of the details
3 from the degree of importance can be divided intoCore equipment and auxiliary equipment4 from the price can be divided intoLarge valuable equipment, general equipmentPower plant and substation electrical equipment is divided into primary equipment and two equipment. A device (also known as the main equipment) is the main component of the power system, it is the direct production, electricity transmission and distribution equipment, including power generators, power transformers, circuit breaker, isolating switch, power bus, power cables and transmission lines. The two device is a device for the control, regulation, protection and monitoring of a device, which comprises a control device, a relay protection and automatic device, a measuring instrument, a signal device, etc.. The two device obtains the electrical connection with the primary device through a voltage transformer and a current transformer. The primary equipment and its connected circuit is called primary circuit. Two equipment in accordance with certain rules to connect to achieve some technical requirements of the electrical circuit called the two circuit.Relay protection and safety automatic device, dispatching automation and communication system are the two systems.

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