Types of generators for Priora: which one is better to replace and types of models installed from the factory

Generator device

A generator is an electrical machine that converts mechanical energy into electrical energy.

The main elements of the generator are the stator and the armature. The figure below shows the Priora generator disassembled and all its parts are described.

Initially, the generator produces alternating current, after which the alternating current, passing through the diode bridge, is rectified and becomes constant.

Basic generator malfunctions

The following parts are most often susceptible to breakdown in a generator:

• Electric current collector brushes;
• Breakdown of the diode bridge;
• Break or short circuit of the stator winding;
• Bearing failure;
• Excessive wear of collector rings;
• Damage to the voltage regulator;
• Generator pulley wear;
• Capacitor breakdown;

In case of all the above-described breakdowns, it is necessary to repair the generator.

What kind of generator does the Priora have?

Which generator is installed on the Lada Priora depends on its configuration and attachments, such as air conditioning, heated seats, heated windshield, etc. The more different “chips” there are in a car, the more powerful the generator should be.

Car without air conditioning

In a car without an air conditioner, a 90A generator is installed, which is quite enough for the “NORM” package.

Detailed Specifications

Car with air conditioning

In this configuration with a large number of attachments, a large amount of current and power generated by the generator is required. The “LUX” and “NORMA+” packages are equipped with high-power 115A generators.

Detailed Specifications

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The service life of a generator varies greatly and depends on the quality of its workmanship. For example, a standard generator can last 140 thousand km, which is almost 10 years of operation.

Which generator is better to choose? First, decide on the manufacturer. It is much easier to find spare parts for Russian generators, while for unpopular generators it is almost impossible to find a replacement for a broken part. Decide on the current strength. From the factory, the tens generator has a current strength of 80A, this is quite enough even if there are additional current consumers. If the generator is missing, then first try to inspect it and clean the contacts. Powerful 120A generators are installed, as a rule, when the car has “strong” acoustics; they do not harm the battery. Anyone who wants to install a 3-level voltage regulator (VR) in the future is recommended to first determine on the manufacturer’s website which generators it is structurally compatible with. They say that generators with the numbers -03- at the end of the model number have a new model LV, which is better than the old one. Also, pay attention to the presence of a guarantee, then you can easily exchange the generator for a new one in case of a defect. By the way, the defect rate of generators is almost 25-50%!

The best generator for Priora

Below is a list of third-party generators for Priora that have proven themselves in the market and do an excellent job.

Generator BATE

Manufactured specifically for Priora 2170-72 vehicles, it has a similar design to standard generators, so replacing the standard generator with a BATE will not cause any difficulties.

Detailed Specifications

Generator Pramo

This generator is most often used to replace the standard “KZATE” as it has a rectification current of 115A, which is quite enough to operate all the functions of the “LUX” configuration.

Detailed Specifications

Generator LKD

An excellent generator for those who use a powerful audio system. This generator is capable of rectifying current up to 120A, which allows it to cope with almost any task that requires high current and voltage.

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Who to buy from?

If you need a new generator for your Lada Kalina car, then the motorist has four options where you can purchase it:

It is important to choose reliable suppliers who have all the documents to engage in sales activities. The most economical option would be to buy a used generator at a car dismantling point or as advertised by Kalina car owners. But there is no guarantee that the device will work for a long time.

If the generator is seriously damaged, it does not have to be repaired, but completely replaced. Parts necessary for repair may be missing, or the breakdown may not be repairable at all. Meanwhile, the on-board voltage and the quality of battery charging depend on the good operation of the power unit. It's a shame when, despite a good motor, electrical equipment does not work properly.

And if we are talking about VAZ cars, then sometimes a replacement is in demand due to the lack of power of standard devices. Modern automakers offer many additional devices that increase the level of comfort when traveling, but they also consume a large amount of electricity, and old devices cannot cope, so they have to be replaced with more powerful ones.

Many people are interested: which generator to buy if they have a VAZ? Here you need to consider them separately by model, so before you go shopping, read the recommendations of specialists and compare them with your wishes and capabilities.

Generator connection diagram for Lada Priora VAZ-2170, 2171 and 2172

Lada Priora VAZ-2170, 2171 and 2172 are equipped with a generator 5102.3771 with the following characteristics:

• Maximum output current at 14 V = 80A
• Adjustable voltage, Volts = 13.8–14.4
• Power density = 205 W
• Generator weight = 5.4 kg.

The figure above shows a wiring diagram for the generator on the Priora , here is its explanation:

1 – battery;

3 – main fuse block;

6 – battery fault warning light

The voltage to excite the generator when the ignition is turned on is supplied to the “D+” terminal of the regulator through the battery warning lamp No. 6 in the instrument cluster. After starting the engine, the excitation winding is powered by three additional diodes installed on the generator rectifier block. The “W” output of the generator is not used on Lada Priora cars. The operation of the generator is monitored using the battery warning light located in the instrument cluster. When the ignition is turned on, the lamp should be on, and after the engine starts, it should go out. If the lamp does not go out after starting the engine, you need to take a multimeter in your hands and check the presence of voltage supply to the on-board network from the generator.

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Step-by-step instruction

1. Remove the engine protection from below.
2. Remove the ridge belt driving the air conditioning compressor and generator.
3. Disconnect the contacts from the generator: first, under the rubber protective cap, terminal B+ (it is secured with a 10 nut), then terminal D (white chip).

   
   Using a 10 mm wrench, unscrew the generator contact

• Unscrew the top mount of the generator from the top of the engine compartment with two 13 mm spanners.

  
  Using two 13 mm wrenches, unscrew the top mount of the generator

• Remove the bolt.

  
  Remove the generator mounting bolt

• Unscrew the lower mounting bolt from the bottom of the engine compartment using a 17mm wrench.

  
  Unscrew the lower mount of the generator with a 17mm spanner

• Unscrew the compressor mount to the bracket with a 12mm wrench. The compressor is secured with 4 bolts: one short, three long. Start with the bottom ones. It is more convenient to unscrew the upper ones using a wrench, an extension, a cardan and a 12mm socket.

  
  Start with the lower air conditioning compressor mounting bolt.

• Move the compressor first downwards, then to the right towards the body side member. There is no need to remove the tubes. On a note. It is not necessary to secure the compressor. It will be held in place by the surrounding parts.
• Remove the bolt with metal sleeve from the lower mounting.

  
  Remove the bolt with metal sleeve from the lower mounting of the generator

• Pull the generator down from the engine compartment.

  
  Pull the generator down from the engine compartment

Priora generator operating principle

A mod generator is installed on Lada Priora cars. 5102.3771 AC, three-phase, with built-in rectifier unit and electronic voltage regulator, clockwise rotation (viewed from the drive side)

Rice. 1. Generator connection diagram

Mod generator 5102.3771 has a number of advantages over earlier domestically produced analogues.

The most significant difference is the increased current output of the generator at low engine speeds (the increase is 4–6 A when the generator rotor speed is reduced by 300 rpm), which is especially necessary when operating the car in winter, and will also allow the future use of an automatic transmission in the car design .

Technical characteristics of the generator 5102.3771

Maximum output current at 14 V, A. 80

Adjustable voltage, V. 13.8–14.4

Engine-generator gear ratio. 1:2.4

Specific power, W/kg. 205 Weight, kg. 5.4

The voltage to excite the generator when the ignition is turned on is supplied to the “D+” terminal of the regulator through the 6th battery discharge warning lamp located in the instrument cluster.

After starting the engine, the excitation winding is powered by three additional diodes installed on the generator rectifier block.

The “W” output of the generator is not used on Lada Priora cars.

The operation of the generator is monitored using a low battery warning lamp located in the instrument cluster.

When the ignition is turned on, the lamp should be on; after starting the engine, it should go out if the generator is working.

If the lamp burns brightly or burns at full intensity, it indicates a malfunction.

Stator 4 (Fig. 2) and covers 3 and 6 are tightened with four screws.

Interchangeability of autogenerators

Interchangeability of generators for Lada cars is achieved if the following requirements are met:

• the main technical characteristics of the installed generator are not lower than those of the device being replaced;
• the gear ratio from the internal combustion engine to the generator is the same;
• the devices have similar electrical circuits;
• The new generator is suitable in terms of weight and dimensions and type of fasteners.

Most Russian-made automobile generators have a 2-leg mount. These fasteners are found on both covers. For equipment of foreign brands, installation is carried out using 1 paw, the fasteners are located on the front cover.

In order to correctly install and securely fasten a foreign generator in a car from AvtoVAZ, it is necessary to replace the bracket.

Possible generator malfunctions

Cause - Remedy

The warning light does not light up when the ignition is turned on, control devices do not work:

Fuse F12 in the mounting block has blown - Replace the fuse

Open circuit in the instrument cluster power supply - Check the connections of the orange wire from the mounting block to the instrument cluster

Open circuit in the instrument cluster power supply: no voltage is supplied from the ignition switch to the mounting block - Check the connections of the blue wire with a black stripe from the ignition switch to the mounting block and the wire itself

Ignition switch does not work - Replace ignition switch

The warning light does not light up when the ignition is turned on and does not light up when the engine is running, the control devices are working, the battery is discharged:

Instrument cluster malfunction - Replace instrument cluster

Open circuit between the instrument cluster and the generator terminal (D+) - Check the connections of the brown wires with a white stripe from the generator to the instrument cluster

Worn or stuck brushes, oxidation of slip rings - Replace the voltage regulator, wipe the rings with a cloth soaked in gasoline

Voltage regulator damaged - Replace voltage regulator

The leads of the excitation winding are unsoldered from the slip rings - Replace the generator rotor

The warning light is bright or dim when the engine is running, the battery is discharged:

Alternator drive belt slipping - Adjust belt tension

Voltage regulator damaged - Replace voltage regulator

The diodes of the rectifier unit are damaged - Replace the rectifier unit

Additional power diodes of the field winding are damaged - Replace the rectifier unit

Open or short circuit in the stator winding - Replace the stator

The warning light comes on when the engine is running, but the battery does not charge.

Voltage regulator damaged - Replace regulator

Increased generator noise:

Damaged generator bearings - Replace the rear bearing or the front cover along with the bearing

Interturn short circuit of the stator or short circuit to ground of the stator winding (generator whine) - Replace the stator

Short circuit in one of the generator valves - Replace the rectifier unit

Source

Generator - removal, installation, repair and maintenance VAZ 2170 2171 2172 Priora

Design features of the VAZ 2170 2171 2172 Priora generator

On Lada Priora - VAZ 2170 2171 2172 cars, an alternating current generator model 5102.3771 is installed, three-phase, with a built-in rectifier unit and an electronic voltage regulator, right rotation (when viewed from the drive side). Mod generator 5102.3771 has a number of advantages over earlier domestically produced analogues. The most significant difference is the increased current output of the generator at low engine speeds (the increase is 4–6 A when the generator rotor speed is reduced by 300 rpm), which is especially necessary when operating the car in winter, and will also allow the future use of an automatic transmission in the car design .

Technical characteristics of the generator 5102.3771 Maximum output current at 14 V, A. 80 Adjustable voltage, V. 13.8–14.4 Engine-generator gear ratio. 1:2.4 Specific power, W. 205 Weight, kg. 5.4

Rice. 1. Generator connection diagram: 1 – battery; 2 – generator; 3 – main fuse block; 4 – ignition switch (lock); 5 – mounting block; 6 – battery discharge warning light

The generator connection diagram is shown in Fig. 1. The voltage to excite the generator when the ignition is turned on is supplied to the “D+” terminal of the regulator through the 6th battery discharge warning lamp located in the instrument cluster. After starting the engine, the excitation winding is powered by three additional diodes installed on the generator rectifier block. The “W” output of the generator is not used on Lada Priora cars. The operation of the generator is monitored using a low battery warning lamp located in the instrument cluster. When the ignition is turned on, the lamp should be on; after starting the engine, it should go out if the generator is working. If the lamp burns brightly or burns at full intensity, it indicates a malfunction. Rice. 2. Generator 5102.3771: 1 – pulley; 2 – front bearing; 3 – front cover; 4 – stator; 5 – coupling bolt; 6 – back cover; 7 – casing; 8 – rectifier block; 9 – output “D+” of the generator; 10 – output “B+” of the generator; 11 – rotor contact rings; 12 – voltage regulator with brush holder; 13 – rear bearing of the rotor shaft; 14 – rotor

Stator 4 (Fig. 2) and covers 3 and 6 are tightened with four screws. The rotor shaft 14 rotates in bearings 2 and 13, which are installed in the covers. Power is supplied to the rotor winding (excitation winding) through brushes and slip rings 11. The three-phase alternating current induced in the stator winding is converted into direct current by the rectifier unit 8 attached to the cover 6. The electronic voltage regulator 12 is combined into one unit with a brush holder and is also attached to cover 6.

Possible generator malfunctions, their causes and solutions VAZ 2170 2171 2172 Priora.