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交流发电机组成及检查的事项

来源:http://www.huannengpower.com   发布于:2019-04-03

(1)转子的检查

(1) Rotor inspection

转子对地短路的检查。用电阻表1×KΩ挡检查转子1的滑环3与转子1轴头之间的电阻应为∞,否则阐明转子线圈短路,应改换。

Inspection of short circuit between rotor and ground. The resistance between the sliding ring 3 of rotor 1 and the shaft head of rotor 1 should be checked by resistance table 1 *K_. Otherwise, the short circuit of rotor coil should be replaced.

转子线圈断路与短路的检查。用电阻表2的1×Ω挡,检查转子1两个滑环3之间的电阻值,应在2.8-3.0Ω之间。假如电阻值在kΩ范围,则表示转子1断路,400千瓦柴油发电机组,假如电阻值低于上述值时,则表示转子1短路。

Inspection of breaking and short circuit of rotor coil. The resistance value between two slip rings 3 of rotor 1 should be between 2.8 and 3.0_when checking with 1 *_block of resistance meter 2. If the resistance value is in the range of k_, it means that the rotor 1 is open and the 400 kW diesel generator set is short-circuited if the resistance value is lower than the above value.

转子滑环磨损的检查。检查滑环3外表能否有伤痕,并用卡尺2丈量,若磨损伤痕深度超越0.22mm时,则应改换转子1或滑环3。

Inspection of rotor slip ring wear. Check the appearance of slip ring 3 and measure it with caliper 2. If the depth of wear scar exceeds 0.22mm, the rotor 1 or slip ring 3 should be replaced.

(2)定子的检查

(2) Inspection of stator

定子线圈对地短路的检查。以捷达轿车为例,用电阻表的1×KΩ挡逐一检查定子线圈的铁芯1与定子线圈抽头2、3和4之间的电阻,均应为无量大,若有较小的阻值,表示定子线圈对地短路,应改换定子线圈。

QQ截图20171025151917.jpg

Inspection of short circuit between stator coil and ground. Taking Jetta as an example, the resistance between the core 1 of the stator coil and the taps 2, 3 and 4 of the stator coil should be inspected one by one with the 1 *K_block of the resistance meter. If there is a small resistance value, it means that the stator coil is short-circuit to the ground, the stator coil should be replaced.

定子线圈断路的检查,用电阻表的1×Ω挡逐一检查定子线圈抽头1和2、1和3、2和3,所显现的值必需为0。若丈量值为KΩ量级时,则标明断路,应改换定子。

Stator coil circuit break check, check stator coil taps 1 and 2, 1 and 3, 2 and 3 one by one with 1 * _block of resistance meter, the value must be 0. If the measurement value is in the order of K_, the open circuit is marked and the stator should be changed.

(3)二极管板的检查

(3) Inspection of Diode Board

以捷达为例,运用多用实验器5,同时按下电阻和电压丈量按钮8和9。

Take Jetta as an example, using multi-purpose tester 5, while pressing resistance and voltage measurement buttons 8 and 9.

检测正二极管:黑端子6接正极散热片1(相当于B+)(正极二极管负极),红端子7逐一接结点2(正极二极管正极)。

Detection positive diode: black terminal 6 is connected with positive radiator 1 (equivalent to B+) (positive diode negative), red terminal 7 is connected with node 2 (positive diode positive).

检测负二极管:红端子7接负极散热片3(负二极管正极),黑端子6逐一接结点2(负二极管负极)。

Detection negative diode: red terminal 7 is connected with negative radiator 3 (negative diode positive), black terminal 6 is connected with negative diode negative 2 (negative diode negative).

检测励磁二极管:黑端子6接在励磁端4(即D+)(励磁二极管负极),红端子7逐一接结点2(励磁二极管正极)。

Detection excitation diode: black terminal 6 is connected to excitation terminal 4 (D+) (excitation diode negative pole), red terminal 7 is connected to node 2 (excitation diode positive pole) one by one.

一切测试均需停止三次,且其值都应为50-80Ω,否则改换二极管板。

All tests should be stopped three times, and the value should be 50-80_, otherwise the diode board will be replaced.

(4)炭刷的检查

(4) Carbon Brush Inspection

用卡尺1检查炭刷2的长度。规范值长度为13mm,运用极限为5mm,超越极限,应予改换。

Check the length of carbon brush 2 with caliper 1. The length of the standard value is 13 mm, and the application limit is 5 mm. If it exceeds the limit, it should be replaced.

(5)电压调理器检查

(5) Voltage Regulator Inspection

在蓄电池充电正常及发电机传动皮带张紧正常的状况下,当发起机转速高于怠速且充电指示灯仍不熄灭时,从发电机上拆下调理器。用一根导线将调理器的接柱“F”与接柱“一”衔接起来,再将调理器装在发电机上。此时调理器处于不正常状态下,起动发起机并使转速进步,如充电指示灯熄灭,则表示发电机工作正常,毛病在调理器方面,潍柴发电机;若充电指示灯仍亮,表示毛病在发电机方面,而不在调理器方面。调理器发作毛病时,应整个改换。

When the battery is charged normally and the belt of the generator is tensioned normally, the regulator is removed from the generator when the speed of the starter is higher than the idle speed and the charging indicator is not extinguished. A conductor is used to connect the connecting post "F" and "1" of the conditioner, and then the conditioner is installed on the generator. At this time, the conditioner is in an abnormal state, starting the starter and improving the speed. If the charging indicator lights out, it means that the generator works normally. If the charging indicator is still on, it means that the fault is in the generator, not in the conditioner. When the conditioner breaks down, it should be replaced entirely.

(6)轴承的检查

(6) Bearing inspection

检查轴承的损坏状况,如损坏应改换。

Check the damage condition of the bearing, if it is damaged, it should be replaced.

(7)发电机传动皮带的检查

(7) Inspection of Generator Drive Belt

检查V型皮带情况,若发现以下缺陷时必需立刻改换:

Check the V-belt condition and replace it immediately if the following defects are found:

基层裂纹(裂痕、芯部断裂、槽断面开裂);

Base cracks (cracks, core cracks, groove section cracks);

位置别离(掩盖层、拉绳);

Location separation (cover layer, pull rope);

基座开裂;拉绳散线;

Base cracking; cable splitting;

侧面磨损(散线、侧面资料损坏、侧面硬化、侧面发滑、上外表裂纹)。

Side wear (scatter line, side data damage, side hardening, side slippage, upper surface crack).

当皮带放到皮带轮上时,皮带的内径与皮带轮槽底应有间隙,若无间隙时必需改换皮带。

When the belt is placed on the pulley, there should be a gap between the inner diameter of the belt and the bottom of the pulley groove. If there is no gap, the belt must be replaced.


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