XB2-B Series Pushbutton Switch
XB2-B series Pushbutton Switch are using controlling circuit of AC voltage up to 660V/AC 50Hz.and DC voltage below 400V.It is used for controlling signal and interlocking purposes.The main body of the push buttons adopts Circuit head,with chromium plated metal bezel,Complete units with screw and captive cable clamp connections.The contact adopts special silver alloy in order to enjoy the benefit of high anti-electrical erosion.The signal lamp series are suitable for electrical applicances circuit of AC voltage up to 380V/50Hz,and DC voltage below 380V.It is ideal for using as indicating signals,warning signals,emergency signals.
Push Button On Off Switch,Waterproof Push Button Switch,Micro Push Button On Off Switch,Green Push Button Switch Ningbo Bond Industrial Electric Co., Ltd. , https://www.bondelectro.com
High-voltage switchgear energy storage failure judgment and treatment - Database & Sql Blog Articles
In the high-voltage cabinet that uses a spring energy storage operating mechanism, it's essential to store energy before closing the switch. This mechanism is driven by a motor that moves through a gear system to stretch the spring. There are two ways to operate it: electrically or manually. If manual energy storage fails, it's typically a mechanical issue. However, if the electric energy storage doesn't work, it indicates an electrical fault. Short-term use of the mechanism usually results in minimal mechanical wear and rarely causes mechanical failures.
1. Incorrect adjustment of the stroke switch: The stroke switch is a limit switch that controls the motor's energy storage position. When the motor completes the storage, it should automatically stop. If the limit is set too high, the motor may keep running without stopping, and the energy storage indicator won't light up. In this case, the motor can only be stopped by turning on the control switch (HK). On the other hand, if the limit is set too low, the motor might stop before the spring is fully charged, which prevents the switch from closing. To fix this, manually store the energy and adjust the switch to the correct position.
2. Motor failure: If the motor windings are burned out, you might notice a burning smell, smoke, or blown fuses. Even with voltage applied, the motor may not turn. Possible issues could include a loose carbon brush or severe wear. To check the motor, measure the voltage across it, its resistance, or replace it with a known good motor.
3. Control switch failure or open circuit: A damaged control switch can cause an open circuit in the control system, preventing the motor from running. Symptoms include no motor rotation and no voltage at both ends of the motor. To diagnose, use a multimeter to measure voltage or resistance. When measuring voltage, ensure the control circuit is powered, and if there’s voltage (excluding step-down components), there’s an open point between the measured points. For resistance testing, make sure any bypass circuits are disconnected before testing.