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Installation method of power filter

Time: 2018-12-21 17:48:19

Click: 119

A well designed and manufactured power filter may also reduce its suppression ability to EMI signals due to improper installation. The installation of power filter must not be careless. Please refer t


Installation Guide for Yanbixin Power Supply Filter
A well designed and manufactured power filter may also reduce its suppression ability to EMI signals due to improper installation. The installation of power filter must not be careless. Please refer to the following suggestions for correct installation.
1): Reduce grounding impedance
In order to reduce the grounding impedance, the filter should be installed on the conductive metal surface or connected to the grounding point through the braided grounding belt to avoid the large grounding impedance caused by the slender grounding wire.

                                                                                        2): The filter should be installed at the entrance/exit of the equipment as far as possible.
Installation position should be close to the entrance of the power line to filter out the electromagnetic interference along the power line as far as possible.

3): Avoid electromagnetic coupling
Generally speaking, when installing EMI filters in electronic devices or systems, it should be noted that when binding equipment cables, the wires at the filter (power) end and (load) end must not be tied together, because this undoubtedly increases the electromagnetic coupling between the input and output of the filter. It seriously damages the suppression ability of EMI signal by filter and equipment shielding.



                                                                                                                   4):Notices for wiring of filters

Operating Environmental  Conditions

Operating environment conditions refer to the normal use of filters.:

1. Operating temperature: - 25 ~85
2. Relative humidity: 5%~95%, no condensation
3. Permissible maximum relative humidity is 60% in the presence of corrosive gases.

Maintenance precautions

1. All testing and disassembly should be carried out after 5 minutes of power cut off. This is to ensure that the internal components of the filter are fully discharged.
2. If the filter fault is found, the power supply should be cut off first and contact Yanbixin Company in time.

Special description
The filter will emit noise similar to rectifier or transformer in the working process, which is caused by the inductance coil inside the current flow filter, and will not affect the effect of the filter, you can rest assured that use!

I. Installation schematic of 5A~250A bolted filter
Statement: In order to ensure electrical safety, the company uses pure copper bolts for fastening, please refer to the instructions.

1 fixed

Install the mounting bolts through the four mounting holes of the filter, install them into the bracket or the chassis, and tighten the nuts.

2 grounding

Connect the grounding screw to the ground with a cord with a cross-sectional area of 0.5 mm2 or more and a length of less than 20 cm.

3-phase connection

Remove one nut washer on the filter phase wire bolt, and install the connected terminal on the phase wire bolt in turn. Note that the wiring of each terminal should be as parallel as possible to avoid crossover.

4 fastening bolts

When tightening the screws, first fix the root nut with the wrench 1 and then tighten the outer nut with the wrench 2. (Please pay attention to the strength. Under normal circumstances, the gasket and the terminal block can be rotated 10° after being tightly attached. As shown in the figure; otherwise Causes the filter terminals to be damaged. The other methods are the same.

5 Inspection
Check the connection and installation of each position of the filter before power-on. Pay special attention to the connection of grounding wires. After checking correctly, power-on operation can be completed.
II. Installation Diagram of 300A~1200A Copper Row Filter 

1 fixed

Install the fixing bolts through the filter mounting holes, horizontally into the bracket or the chassis, and tighten the nuts to secure them.

2 grounding

Connect the two grounding screws on the input and output terminals to the ground with wires with a cross-sectional area of 16 mm2 or more and a length of less than 5 m.

3-phase connection

First, use the matching sandpaper to polish the contact surface of the copper wire of the filter wiring to ensure good contact!!!

Align the terminal hole of the connected wire with the lead wire of the filter lead, pass it with a bolt, and clamp the bolt and nut separately with two wrenches, and tighten them tightly. It is recommended to use copper bolts and copper nut washers for connection.

 

4 Inspection
Check the connection and installation of each position of the filter before power-on. Pay special attention to the connection of grounding wires. After checking correctly, power-on operation can be completed.

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SHENZHEN YANBIXIN TECHNOLOGY CO.,LTD    TEL:+86-755-27147102/27147103

SHENZHEN YANBIXIN TECHNOLOGY CO.,LTD