The High Current Rectifiers listed on this website is customized, just for your reference. If you have any specific demands,please tell us the parameters in details. We’ll be more than happy to work with you to meet your exact requirements.

Structure overview:

The control cabinet is of GGD closed structure and opposed access door at the front and back for operation and maintenance. The gauge, control switch and potentiometer are installed front door plank of the cabinet; the signal light is installed on the top panel in the front of the cabinet and the entrance hole is set at the bottom of the cabinet for user connection. See Figure (II) for its appearance and installation dimensions.

The main parameters of our Thyristor / Diode High Current Rectifiers for Industrial Applications:

A）Voltage Specification:  5V - 3000V

B)  Current Specification:  300A - 240000A

C)  Output Current Adjusting Range： 0 - 1000A

Please give us the follows technical information before order:

1  A.C. INPUT

• A.C: rated voltage

• Phases

• Frequency

2  D.C. OUTPUT

• Rated D.C. voltage

• Rated D.C. current

• D.C. voltage fine control range (thyristors)

• D.C: current control range

• Accuracy of current fine control

• Pulse number

• Ripple

Model	ZHS240000A/200V	Efficiency	≥98.6%
Input Voltage	AC110KV	Rated Voltage	DC200V
Input Current	AC304A	Rated Current	DC240000A
Range of Regulation	On-load Voltage + Switch  Regulation: 15%-105% Udn
Notes forOrder	Input Voltage	AC300V-330KV	Optional
	Frequency	40-60Hz	Optional
	Current Regalation		Optional
	Voltage Regulation		Optional
	Rated Current		Optional
	Rated Voltage		Optional
	Cooling Mothed	Water,Air,natural or Forced Draft Cooling	Optional

Digest of High Current Rectifier（HCR）technical documents.

Part sixteen of User Manual

ChapterⅦ.HD30-20 Dc high current isolation switch operating instructions

HD30－

High Current Bridge Disconnector

User’s Manual

XI`AN ZHONGKAI POWER RECTIFIER CO., LTD.

 

1. General Description

The DC high current bridge disconnector of HD30-□is a reliable and safe isulating equipment . Mainly used in DC power supply for no-load operation in the electrolysis of nonferrous metallurgy and chemical plants.

When the disconnector is opened , there are visible insulation gaps between the mobile  and the fixed contacts ; When it is closed , the product can not only endure the normal working current , but also withstand the short circuit current in a certain time.

2. Reference Standard

Q/SZD 002-2001 《High Current Bridge Disconnector》

GB14048.1 General rules for low-voltage switchgear and controlgear

GB 14048.3 Low-voltage switchgear and controlgear swutches, dusconnctors, switch-disconnectors and fus-combination unit

3.Specification

3.1  Ambient Temp.－25℃～+40℃ / Average Temp. ＜+35℃

3.2Mounting Elevation Above Sea Level   ＜2000 M

3.3Humidity                          ＜50% / +40℃

3.4Pollution Degree                   3

3.5Indoor Installation

3.6Installation Type                    Ⅳ

3.7Rated Voltage                      DC 2000 V

3.8Service Type                       Main Circuit DC20

                                      Control Circuit AC-15

3.9Mechanical Life                    ≥10000 Cycles

3.10 ated Short Time Withstand Current    Icw≥12Ie / 1s

3.11 Control Circuit Power Supply         AC 220V / 50HZ

3.12 motor                            Three Phase Induction

3.13Accessary Limit Switch             6NO , 6NC

/ Rated Thermal Current 5A

4.Structure and Mechanism

4. 1 Structural Features

Please refer to figure 1 ， This product is characterized in structure as follows .

4.1.1The contacts of mobile arms and fixed arms are made of solid silver alloy welded in place . As the comparison of the silver plated contacts , the solid silver contacts can not only endure much longer , but also increase the through-current capacity and therefore avoid the exceeding temperature rise.

4.1.2When the disconnector is closed ，the mobile arms stride over the  fixed arms like bridges , and the electrical osculation is made between the silver contacts . Because no friction occurs between the contacts , they can endure much longer.

4.1.3Good contact is achieved by the springs pressing on the mobile arms. The pressure between the contacts can be measured using the forcemeter and be adjusted separately.

4.1.4The limit switches and the motor driving gear are arranged in the nearby position , so that the maintenance can be carried out conveniently .

4.1.5Bus-bar connection makes it simplified and short time-consuming to install

4.1.6Both manual and motor operating systems are supplied

4. 2  Mechanism：

4.2.1  Through the gear reducer , the motor drives the main shaft rotating . The main shaft drives the horizontal movement of the left and right side plates.

4.2.2  When the spindle is rotated, the left and right pressing plate is mounted on the main shaft to move horizontally. The contact pressure spring is released slowly, when the contact pressure is released, the level of the movable arm is moved, so that the dynamic and static contacts are separated gradually. When the distance between the static and dynamic contact reaches the design requirement, the stroke switch moves, and the tripping action is finished.

4.2.3  Reverse rotation of the motor, the main shaft drives the pressing plate drag arm to move horizontally, when the movable contact spindle continues to rotate, and drives the pressing plate further move horizontally, and the pressure of the compression spring, when the contact pressure between the contact to 38~45kgf, turn on the connector is over.

 

5.Installation and Adjustment

5.1 Installation

5.1.1  Clean the terminals of the disconnector and the busbar , and make sure that any oily dirt on the contact surfaces is removed completely . A piece of cloth and some pure alcohol may be helpful in doing so .

5.1.2using bolts of M16，fix the bus-bar to the terminal connectors of the disconnector.

5.1.3  As shown in figure 3 and figure 4 , using bolts of M16，fix the bus-bar to the terminal connectors of the disconnector.

5.2  Adjustment

         A new disconnector has been adjusted properly before leaving factory , and needs NO adjustment on the installation site . The process described below is just for the maintenance or replacing some parts.

Refer to figure 1 and figure 3 , make the necessary tools ready .

5.2.1  Adjust the installation height of each limit switch to make sure its four actuators can be reached and actuated properly by the cam .

5.2.2  Make the mobile and the fixed silver contacts clean .

5.2.3  Adjust the position of the closing limit switch so that the distance witch the calmp and num is 10mm;

5.2.4  Electrically or manually operate the disconnector to its normal close position .Sampling-check the pressure of the contacts , and adjust the  related spring nuts if necessary , so that the pressing force maintains in 38～45kgf

5.2.5  Electrically or manually switch the disconnector to its normal open position (manual operation is described in 5.2.9) , visually check the mobile arms to see whether they are in a vertical line , and make sure the clearance between contacts are more than 30 mm.

5.2.6  If the disconnector has to be opened manually , the adjusting shaft (Near the motor , as shown in figure 3) can be turned with a wrench of 14×14 to open or close the mobile arms.

6.Operating Instruction

   6.1 Inspect the peripheral wiring and make sure that all the wiring is correct.

   6.2 Inspect the bus-bar system and ensure it is fixed firmly . It is forbidden that the bus-bar presses its weight on the disconnector.

   6.3 Inspect the installation field and completely remove all the moveable ferromagnetic pieces within the range of 10 m . If dimensions of the close installation room are less than 10×10m2 , just clean up the  room .

 6.4 Finally, the on-load test can be carried out according to the related program

7.Troubleshooting

     7.1  Local temperature rise exceeds the rated value

7.1.1  Open the mobile arms electrically or manually and inspect the contacts . If there is any oily dirt , clean it up .

7.1.2  Check the pressure of nearby contacts with a forcemeter . If the pressure is not adequate , adjust the spring nuts or replace the spring .

7.1.3  Eye-check the nearby mobile arms to see whether there is some deformations which will decrease the contacting area .

  7.2  Mobile arms can not move in place on motor operating

7.2.1  Inspect and adjust the relative position of the cam to the motor gear

7.2.2  Inspect the problem arms to see whether they are deformed ..

7.3  Temperature rise of the motor exceeds its rated value

7.3.1  Inspect the thermorelay in the control box to see whether it is damaged .

7.3.2  Inspect the driving gear to see whether it need cleaning.

8.Maintenance

8.1  The motor driving gear must be cleaned every two years and lubricated with grease 2G-3

8.2  Refer to figure 1 , if one of the mobile arms has to be disassembled off , a socket screw wrench can be used to take the hinge apart from the angle steel . Loosen the spring nuts and remove the springs . And now the mobile arm with the hinge can be taken apart from the disconnector . Finally , remove the external retaining ring and separate the mobile arm from the hinge mount .

8.3  Periodically clean the dust on the equipment

  8.4  Periodically check the silver contacts and ensure that every contact is clean and without any deformation or corrosion or other damages . If some contacts are injured remarkably , replace them following the instruction under 9.2 . If any oily dirt is detected on the surface of contacts , a piece of clean cloth and some pure alcohol may be helpful . NOTE : Be careful not to damage the silver contacts on polishing them .

  8.5  Periodically inspect the installation field and remove any unfixed ferromagnetic pieces.

 8.6  On the operating process , the disconnectors should be under watch

  8.7  The pressure of the contacts should be measured at least once every year .

9.Transportation and Storage

9.1  The disconnectors must be kept dry and clean in transportation and storage .

9.2  Any impact is forbidden

9.3  The storage orientation must conform to the marks outside the package case . Any inclining or overturning is forbidden.

9.4  In storage , the mobile arms should remain in close position while the springs are not pressed . The whole equipment must be fixed and enclosed in a package box with adequate strength

9.5  Because of the large weight of the equipment , the package case must be checked frequently during transportation or storage to prevent any cracks or deformations or loosen junctures.

9.6  During long time storage , drying-agented hermetic package is recommended . If the hermetic package is unavailable , the weatherproof box must be used and periodic check should be performed to prevent corrosion .

 

10.Package Contents

  10.1  Move the package case to a proper place . NOTE: Lifting operation must conform to the marks printed outside the case . The emplacement must be strong enough to support the equipment . Any inclining or overturning is not allowed .

  10.2  Unpack the case and check the contents listed below .

 

No	Part No.	Description	Spec.	Qty	N.W. (kg)	T.N.W (kg)
1		DC High Current Bridge Disconnector	HD30－□	1
2		Wrench	Special	1/1
3		Technical Documents
4
5
	Total

High Current Rectifier（HRC）ZHS240000A/200V Structure Feature & Advantages

▲ Adopted cophase counter parallel connection Rectification，wihich can increase the power factor and reduce power loss

▲ Three-phase bridge rectification,which has the characteristics of reliability,stability,and low losses

▲ Adopted aluminum frame and glass antimagnetic cabinet, which suit for monitor and maintenance

▲ Power is scalable

▲ Can be maintained with electricity.

▲ With Low noise 

▲ Easy to operate 

▲ Superiority of Ture Rdundancy technique

▲Over / low Voltage protection    

▲Over / low current protection   

▲Over / lack water protection        

▲Over temperature protection

▲Fast fuse protection