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Add:No.261 Weishiqi Road, Yueqing Economic and Development Zone, Yueqing, Zhejiang, China

Contact:Ajia Zhang




Skype: Ajia Zhang

Digital Fault Indicator Monitoring System Fault Sensors

Quick Details Model Number: CBGZ-1000S Brand Name: Chaobo Joint Type: Clamp Joint Type Application: Overhead 6-50KV High Voltage Cable IP Code: IP68 Place of Origin: Zhejiang, China (Mainland) Lead time for sample: Within 15 days Fault indicator technical parameter Product main function:...

Products Specifications:

Quick Details

Model Number: CBGZ-1000S 
Brand Name: Chaobo  
Joint Type: Clamp Joint Type  
Application: Overhead 6-50KV High Voltage Cable
IP Code: IP68 
Place of Origin: Zhejiang, China (Mainland)
Lead time for sample: Within 15 days

Fault indicator technical parameter

Parameter Items

Parameter Name

Parameter Details

Electrical Parameter

Short circuit fault action current

100A (Default,Can be set before delivery)

Earth fault action current

40A (The default injection method of grounding,Can be set before delivery)

Analog measurement cycle

Measuring one time every 30minuts (Default,Can be set before delivery)

Applicable voltage grade

6~35 kV

Applicable wire current

10~700A (Default)

Applicable power frequency

50 Hz/60Hz (According customer’s request)

Maximum short circuit current


Short circuit recognition time


Load measurement accuracy


Power supply mode

Lithium battery+Self-charging from the cable

Communication mode

Radio frequency

Static power loss


Action power loss

<20 mA

Minimum load current of the insulated cable


Minimum load current of the bare cable


Engineering Parameter

Auto reset mode

Time reset+Auto reset after the power line recover (According customer’s request),

Action times

≥5000 Times

Continuous flash time


Flash time interval


Ambient temperature

-40 ℃ ~+75 ℃

Relative humidity

≤ 95%

Applicable wire diameter


Maximum wind speed


Applicable altitude


Fault alarm accuracy


Protection class


Pollution class

Working life

10 Years


60000 H


500g more or less

Product main function:
1.Online monitoring of the short circuit fault and earth fault, over-current, off line, theft case, load current, lack of phase, line charged off power, sending and instructions, distribution transform monitoring, user boundary fault terminal, acquisition real-time data of circuits, and so on.
2.Monitoring line load current, and display the current change curve on the system center.
3.Can be used as power supply circuit maintenance intelligent inspection system, monitoring Maintenance personnel whether to inspection the power line on time.
4.The hardware and software with functions of bidirectional transmission, that Can view the latest data on computer terminals.
5.Monitoring the power line other parameters, according to customer's requirements.  
6.Remote sensing (remote sensing information), remote measurement, acquisition and transfer operation parameters, Including all kinds of electric parameters (on line current, frequency, etc ) and load current, etc.
7.Remote communication (remote communication information), remote signal, When the fault occurs, collect and transmit the current status information back to system center for confirmation State.

System technical characteristics:
1.Using the latest research and development of testing technology, to detect the high accuracy of fault.
2.Overhead distribution lines using the method of zero sequence current, five times harmonic method, etc. Greatly improve the single-phase grounding fault detection accuracy.
3.Inspection terminal using solar power, long service life.
4.Inspection terminal, center software has two-way communication function, that Can view the latest data on system center any time.
5.Can use the curve display line current change.
6.Can be recorded and indicates the continuous occurrence of failure.
7.The main software direct image display line operation state, straightforward, Using sound alarm after circuit malfunction, and sent SMS to related management personnel mobile phone in time.
8.The SMS to mobile phone only show the information of a test in front of the terminal, avoid all terminal transmitting before point of failure interest rates, that cause mobile phone received dozens of text messages, not easy to identify the specific point of failure.
9.Use of the existing GSM/GPRS wireless network, widely used, all the transmission lines, distribution lines, low-voltage line of one electric power company just need one monitoring center.
10.Master station software is powerful functions, have a lot of management functions, and can upgrade continuously according to user requirements.
11. Close communication with wireless communications.

The composition of system

System including server, switch, fault detection terminal. Respectively installed in monitoring center, wire pole, overhead cable.

1.Monitoring center include:
One set data processor with system main software. Monitoring center would be setup in the office of the power supply bureau dispatch, power substation, special line worker, etc.
2.Overhead cable installing part include:
(1)Line fault monitor
Can send and receive signals of line fault monitoring terminal, 3pcs/SET. Respectively installed in A,B,C three phase cable. Each monitor built-in ultra-low power consumption of the CPU and wireless RF module(Texas instruments (TI) Zigbee wireless communication methods) sent out the fault data, and sent the fault data to fault data collection terminal via wireless RF.
(2)Fault data collection terminal
Fault data collection terminal installed on the wire pole, one data collection terminal can receive data from nearby three line fault monitor, and analysis and process the fault data then sent to control center by GSM/GPRS.
The fault date collection terminal is mainly composed of the solar panel, wireless receiving template, industrial GPRS module, CPU template, (Without SIM card). (As followed picture)

Detection principle
Short circuit fault detection
1.(I)It≥300A    It - Current start value mutation
2.I≥0.5IO          I - Electric current changing rate,
                     IO - Line current before short circuit
3.I=O               I - Current after the line fault  
4.0.02S≤T≤3S   T - Current mutation time
Earth-fault detection:
Uz - Line voltage≥3kV
IL- Loading current≥20A
△IZ - Mutation current of the first half wave peak≥30A
△Uz - Earth fault phase voltage drop ratio≥30%
T1 - Normal operation time of the line≥30S
T2 - The fault duration≥1ms
T3 - Earth fault phase voltage continue drop duration before power outage≥60S
Detection of zero sequence current is greater than 15A (Can be set)
The power distribution cable line
1. Short circuit fault detection: same as overhead line
2. Earth-fault detection: Detection of zero sequence current is greater than 15A (Can be set)

System Software Installing
For Windows XP/Win7,Mobile software for Android

Order Information:
1.Provide the circuit diagram and terminal installation position
2.Provide circuit parameters
3.Provide mobile GSM card


Test Report:
Our products have already passed the test by CMA, CNAS,CE till now, and we also have ability to arrange other relevant testing and factory audit as your requirement.  



1.Q: Are you a direct manufacturer and exporter from China?
A: Yes, we are. We have our own factory and international sales department. We produce our own products all by ourselves.
2.Q: Where’s your factory located?
A: Our factory locates in Yueqing City, Zhejiang Province, China. It takes about 30mins by car from Wenzhou International Airport to our factory. From Shanghai to Wenzhou 45mins by air, from Shanghai to Yueqing 4hours by high-speed rail.
Welcome to visit our factory anytime. We will pickup you at airport or railway station.
3.Q: When can I get the price from you?
A: Please send us inquiry to us via website or email, and you can give us a call to tell us if your needs urgent, we’ll reply you within 24hours.

4.Q: How can I get a sample to check your quality?
A: We provide less than $50 free samples, upon you pay the courier fee. You can require for samples to check our quality. If we have stock for the models you need, the samples can be sent to you within 3 days through FedEx, UPS, TNT, DHL, etc.
5.Q: How long is the lead time?
A: Usually it takes around 3-30days after sample confirmed and deposit received (Depends on order quantity and sales season). If you need the goods urgently, please tell us, and we will try our best to give you priority.
6.Q: What should I provide if I want my own brand packaging or printing?
A: Usually you can provide us information either the four ways listed below:
1).Your brand authorizing.
2).sample packaging for us to copy.
3).layout or 3D drawing of the packaging or design.
4).the size of the product to be packed inside.

7.Q: How can I pay you?
A: For mass production goods, you need to pay 30% deposit before production and 70% balance before shipment.
The most common way to pay us is by T/T. L/C, Western Union is also acceptable.
8.Q: Can I check quality of goods before delivery?
A: Yes, either you or your company colleagues, or a third party is welcome to our factory to do the inspection before delivery.
9.Q: How the goods are delivered to me?
A: For small quantity, we advise to deliver by courier, like FedEx, UPS, DHL, etc.
For big quantity, we advise to ship by sea. We can send goods to your assigned Shipping Forwarder(FOB price). Or if you don’t have one, we can quote you CNF or CIF price.
10.Q: What about the warranty
A: We promise one year warranty, (non-artificial damage all the products free replacement within one year ) For big project our engineer service abroad.

As one of the largest and best digital fault indicator monitoring system fault sensors manufacturers and suppliers in China, Chaobo Electrical is equipped with a professional factory which is dedicated to electric power industry. We warmly welcome you to wholesale digital fault indicator monitoring system fault sensors made in China from us.