The drawer type switch cabinet is made of steel plate and is made of a closed shell. The electrical components of the inlet and outlet circuit are all installed in the extractable drawers to form a functional unit that can fulfill a certain type of power supply task. Between the functional unit and the bus or cable, separated by a grounded metal plate or a plastic function board, the busbar, the functional unit and the cable are formed in three areas. There are also isolation measures between each functional unit. Drawer-type switchgears have high reliability, safety and interchangeability. They are relatively advanced switchgears. The switchgear currently produced is mostly a drawer-type switchgear. They are suitable for industrial and mining enterprises and high-rise buildings requiring high reliability of power supply as a centralized power distribution center. So, what is a low voltage drawer switch ? The following Xiaobian brings you the knowledge of low-voltage drawer switchgear .
What is a low voltage drawer switch cabinet <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> Between the functional unit and the bus or cable, separated by a grounded metal plate or a plastic function board, the busbar, the functional unit and the cable are formed in three areas. There are also isolation measures between each functional unit. Drawer-type switchgears have high reliability, safety and interchangeability. They are relatively advanced switchgears. The switchgear currently produced is mostly a drawer-type switchgear. They are suitable for industrial and mining enterprises and high-rise buildings requiring high reliability of power supply as a centralized power distribution center.
Low-voltage drawers use method
First, pull out the operation should pay attention to the matter: 1/4 drawer and 1/2 drawer (black):
When pushing the drawer inwards, before the drawer is pushed in, flatten the drawer and push it back and forth on the slide rails to confirm that the drawer has been lowered and advance again. (If there is no slot, the drawer will be difficult to pull out after it is pushed in. The drawers on both sides of the drawer will not pull out because of the embedded baffles on both sides of the drawer, which will destroy the partitions and the first plug on both sides of the drawer)
Approach:
1. Pull up and down the two drawers, use a long screwdriver to press through the cracks on the inserting point of the panel, and then pull out. If you pull it out, it will inevitably lead to damage to the drawer frame.
Due to boot or normal operation, the upper and lower drawers are inevitably running, it may not be allowed to pull out the drawer, so the handling is more troublesome, so pay attention to the use of the method when sending electricity, so be impatient and hands do not rush, according to the normal operation , to reduce the failure time, to avoid affecting production.
2, when the drawer is advanced, about 15CM away from the upper position, with 2 to 3 pounds of force can be advanced. Do not push the full stroke of the drawer shoved, so it is very easy to damage the drawer; if the force is too small, it is not easy to advance into place.
3. Operation sequence after the drawer is pushed: Turn the knob (black) to the test position and press the green start button to start (such as the contactor pulls in, the running indicator is on, indicating that it is in good condition) Then hold down the knob (rotate the vertical knob directly To the operating position, the red line of the knob is vertical);
If you do not press the knob, the button will be broken, which will result in failure to send power; when you turn on the knob, sometimes it will be hard to rotate. At this time, check whether the drawer is rotated into position. When viewed from the outside, the drawer frame and the cabinet frame will fit together, even if there is a small 1 to 2 mm distance.
Second, the big drawer
1, 2 and 3 above are also their points of attention.
2, in the advancing, but also try to pull a few, this is due to the back of the drawer plug and the primary plug and the frame maternal plug is not right, (this should be noted when the drawer due to fault replacement, this is because these drawers behind There are different types of plug connectors.)
3, sometimes when you pull out the drawer out, pull it out, should be a little harder to pull up, and then pull out (of course at the same time), such as the drawer on the top of the frame, because it is often overlooked, but difficult Pull out.
4. The operation of the secondary knob is the same as that of the 1/4 drawer and 1/2 drawer 3. It should be remembered that only when the secondary knob reaches the operating position can the knob of the one-time switch be pushed to the operating position, otherwise it will damage the knob of the one-time switch and cannot be powered.
5, drawers can not be opened, the main problem is the rotation of the spin.
This is the most important issue, assuming the worst case: The drawer at this time is often closed and is under fault, and the production is in a hurry to request the restoration of power transmission.
(1) In terms of understanding, do not be superstitious about the position of the knob, because it is only a mechanical chain after all. It can be rotated by rotating two knob positions (remote control, local knob, and main switch knob). You can try to deviate a little bit, try again to open, generally open no problem.
(2) If a drawer that does not open is encountered, the production is rushed again.
Its quick reset power transmission operation steps:
a: There is a small hole (lower right) next to the remote, local knob, and use a small screwdriver to reach the hole and press down the baffle.
b: There is a small hole on the left side of the closing hole, which is also opened with another small screwdriver.
c: Both screwdrivers are unlocked at the same time and open the drawer door.
d: Manually adjust the front link of the switch once (sometimes it often fails to open because the link is stuck) to disconnect the main switch.
e: Confirm whether the mechanical link under the main switch has been released. If it is not in place, you can activate it.
f: Unscrew the second switch button to the safe extraction position
g: Pull out the drawer and reset it to resume power transmission.
h: Only once the switch and the second switch are in engagement with the drawer, the drawer can be pulled freely and the switch can rotate smoothly.
The above is about the low-voltage drawer switchboard related information, and hope to help you! More home improvement knowledge, please pay attention to this site information!
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