Generator fault diagnosis and data collection scheme

       Along with our country economy has obtained the development which progresses by leaps and bounds, rapidly improve, people's material and cultural life of the people, the demand for electricity is increasing, the construction of power plants in our country also entered the fast phase.Rapid construction of power plant, to a certain extent, alleviate the people power consumption increased and the contradiction between the demand.But power plant in the process of operation, the generator will happen in the long run some frequent malfunction, this not only affected the normal electricity demand of people, and is caused by the larger effect on the economic benefits of enterprises.So in the process of the operation of the power plants, need to deal with the cause of the problem of generator common necessary analysis, so as to work out preventive measures, so as to ensure the normal operation of generating set.Respectively in this paper the cause of the problem of generator damage coil, insulation aging, the rotor coil heat loss, the stator coil temperature distribution and so on has carried on the detailed analysis, and put forward the concrete preventive measures.

Generator fault diagnosis of the method

Electrical analysis

Through spectrum such as signal analysis method to test the load current waveform, fault diagnosis to trigger motor reason and degree, the signals of partial discharge detection, compared to applying the pulse signal of the external standard and corresponding response, etc.;

Insulation monitoring method

Use a variety of electrical test equipment and diagnostic techniques of generator insulation structure and parameters, and job performance judging whether there is a defect, and make predictions on the insulation life expectancy;

Temperature monitoring method

Used in a variety of temperature measurement method to monitor the temperature rise of generator parts, the rise of temperature of the generator is associated with various malfunction phenomenon;

Vibration and noise diagnosis method

Through detection of noise and vibration generator, and to obtain the signal processing, and the reason of fault diagnosis on motor parts, especially for mechanical damage diagnosis particularly effective;

Chemical diagnostic method

Can detect the insulation materials and lubricating oil degradation after decomposition and some bearing, seal of wear debris, by comparing the content of some of the chemical composition, the related parts components can be judged the degree of damage.

The cause of the problem analysis of generator cooling fluid circulation

Diesel generating sets radiator fin jam or damage.A cooling fan doesn't work or heat sink jams, cannot make the cooling fluid temperature drop down, heat sink, rusty, leakage phenomenon can also cause a bad circulation.

Diesel generator set thermostat failure.Engine combustion chamber with a thermostat, the purpose is to control the engine combustion chamber temperature, thermostat must be in the specified temperature (82 degrees) fully open help small cycle, if there is no thermostat, cooling fluid can't maintain cycle temperature, may lead to the low temperature alarm.

Diesel generator set mixed with air in the cooling system, caused the uneven line, expansion tank on the suction valve and exhaust valve damage also directly affect the circulation, then should always check the pressure value is in accordance with the provisions, inspiratory pressure is 10 kpa, exhaust pressure is 40 kpa, in addition to time the exhaust line was clear also is the main reason that influence the cycle

Diesel generator set coolant level is too low, or do not conform to the rules.Liquid level is too low can directly cause the coolant temperature cooling fluid circulation, cooling fluid according to regulations is 50% antifreeze + 50% + DCA4 demineralized water, if do not conform to the rules will cause pipeline jam, rust inside the wall, make the cooling fluid can't normal cycle.

Diesel generator set pump failure.Check whether the water pump function is good, if it is found that the water pump drive gear shaft wear over time shows that the pump has does not work, need to change to normal cycle.

Only through the analysis of the fault correctly can suit the remedy to the case, take reasonable measures to LIXISE reminds the user to learn theoretical knowledge, response to various kinds of fault, maintenance, and in a timely manner to ensure the normal operation of the enterprise.

Professional data collection equipment

LXI980 is a collection of data collection of communication protocol conversion module, through this module will generator connected to the Internet at the other end of the cloud server, and remote monitoring for generator set of data records and fault alarm

A variety of data transmission way, safe and reliable, never dropped

2G mobile unicom, telecom 3G, WIFI, Internet cable

So easy as you think

We had a lot of peripherals port and can connect the generator controller and ATS controller, at the same time also can monitor the generator stator temperature, bearing temperature and so on, to achieve a more comprehensive monitoring

Multiple interfaces allow you to experience the limit connections

LIXISE LXI980 series not only has the traditional RS232 interface, but also increased the RS485 interface, USB interface, and the LINK interface.Connection is diversiform, unimpeded experience

Private custom designed for your service

According to different user groups, different applications, LIXISE launched different signal data collector

LXI980I screen: suitable for fixed installation of generating sets, broadband network and facilitate the installation of cable

LXI980W wifi version: suitable for fixed installation of generating sets, broadband network, but not easy to install cables to the situation of the unit;

LXI980G2: suitable for portable power vehicles, rental units, field work units, no broadband network, there are 2 g mobile, but no 3 g signal occasions;(note: with GPS)

LXI980G telecom 3 g version: suitable for portable power vehicles, rental units, field work units, no broadband network, places that have requirements of telecom 3 g coverage.(note: with GPS);

If the old units, our data transmitter built a complete unit controller, can realize a comprehensive data acquisition and control unit

Generator maintenance method

Need according to the diesel engine and generator and control panel of their own requirements for regular inspection and maintenance

Diesel generator set operating five hundred hours each, should check the connection between diesel engine and generator have abnormal phenomenon;If it is closed generating set, diesel engine should be inspected at the same time of the front end of the output and the elastic connection status, if there is damage should be replaced;

Automatic maintenance reminder and regular training, prolong the service life of the unit, according to the unit operation time, fuel consumption, automatic alert maintenance personnel maintenance, prolong the service life and security unit in good standby condition

Real-time monitor usage, users in a timely manner to prevent improper operation, reduce loss of unit and the unit to work overtime and real-time monitoring unit load, when the unit load, record information overload and push information to monitor at the same time, in order to alert the user to use.

Continue to be improper use after warning appears on the unit

When the monitoring to the unit in high temperature or low oil pressure, and other warning information, timely remind users, do a good job related to correct.

Closed generating set at the time of use should regularly monitor the tightness of the fan and the belt, when necessary need to adjust the tension of the institution makes the fan belt tensioning degree is reasonable

Lixise  generator fault diagnosis system to collect patent technology for the generator, the real-time collection and various operation parameters of diesel generator set, as well as the historical operation data, fault records, concentration of dispersed generators data remote monitoring and management.For health monitoring of the unit in real time