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VOLTAGE REGULATOR JA112B

PRODUCT REMOVED FROM MANUFACTURING
Available analogue - JA112B1

Voltage regulator JA112B
General information
Specifications
Connection diagram
Dimensional drawing

 

General information:

The voltage regulator JA112B is purposed for voltage maintenance of the onboard vehicle network of the tractor in predetermined limits in all system operation modes of electrical equipment at change of the rotation frequence of the alternator rotor, electrical load and environment temperature.

The regulator is produced in a single climatic design О2.1 in accordance with GOST 15150 for internal market and for export. On extent of protection against penetration of foreign bodies and water, the item meets design IP68 in accordance with GOST 14254. Against moisture penetration the regulator is protected by special high-heat-conducting compound with an operating temperature up to 200 °С. Serviceability and correspondence of item parameters are saved even at plunging of the regulator to water under condition of protection of demountable joints. The regulator JA112B is designed on a single-wire power circuit; the item housing is connected to the vehicle housing. An operating mode of the regulator is S1 in accordance with GOST 3940.

Applicability: tractors TDT -55, DT-75C, T-16M, T-25AZ, Т-30A, MTZ with the alternator 46.3701 and others.

The regulator is mounted in the brush unit of the alternator where the setting of regulators JA112B or JA112B1 with the help of standard screws is stipulated.
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Specifications:

Range of operating temperatures, °С
-45 .. +100
  Nominal regulating voltage, V
14,0
  Regulating voltage with battery at t°=(25 ± 2) °С and load of alternator 3А: mode "Winter", V
14,0 ± 0,15
Regulating voltage with battery at t°=(25 ± 2) °С and load of alternator 3А: mode "Summer", V
13,8± 0,1
  Regulating voltage with battery at t°=(25 ± 2) °С in range of alternator load from 3A to Imax*: mode "Winter", V
14,0 ± 0,2
Regulating voltage with battery at t°=(25 ± 2) °С in range of alternator load from 3A to Imax*: mode "Summer", V
13,8± 0,2
  Maximum current of output circuit, А
5,0
  Thermal compensation of regulating voltage, mV/°С
-3,0 ± 1,5
  Residual voltage on output "Ш", not more, V
1,0
  - typical, V
0,75
  Maximum allowable long-term influence of increased supply voltage, V
18,0
  Maximum allowable influence of increased supply voltage up to 5 min., V
25,0
  Maximum allowable pulse overvoltages in accordance with GOST 28751, V
120,0
 
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Connection diagram:

Connection diagram of the voltage regulator JA112B
 
1 - alternator;
2 - switch of an operation mode "summer / winter";
3 - voltage regulator;
4 - field winding;
5 - ignition lock contacts;
6 - stator winding;
7 - rectifier unit;
8 - capacitor;
9 - battery.
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Dimensional drawing:

Dimensional drawing of the voltage regulator JA112B
 
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