Installation Instructions
MR41E-1B Small electric operating mechanism
MR41E-1B Small Electric Operating Mechanism Installation and Operation Instructions
Table of contents
1. Overview.................................................................................................................. 2
2. Technical Parameters.................................................................................................. 2
3. Characteristics of operating mechanism..................................................................................................3
3.1 Practicality.................................................................................................. 3
3.2 Economic efficiency.................................................................................................. 4
3.3 Easy maintenance and inspection.................................................................. 4
3.4. Intelligent functions.................................................................................................. 4
IV. Institutional Operations.................................................................................. 4
4.1 Three operating modes of the organization.................................................................. 5
4.2 Mechanism Wiring................................................................................................. 6
V. Installation and Debugging.................................................................................. 6
5.1 Inspection and unpacking precautions.................................................................. 6
5.2 Installation Notes.................................................................................................. 7
5.3 Maintenance................................................................................................................ 7
5.4 Usage and Ordering Instructions.................................................................. 8
VI. Common Fault Judgment and Analysis.................................................................. 8
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MR41E-1B Small Electric Operating Mechanism Installation and Operation Instructions
1. Overview
MR41E-1B small electric operating mechanism is an electric operating mechanism for the output of the isolating switch of our company.
The electric mechanism is a contactor controlled mechanism. This product has a simple structure and
It has the advantages of reliability, small size, light weight, low noise, low failure rate, and simple installation and maintenance.
MR41E-1B small electric operating mechanism is equipped with a crank, which can realize manual, electric and
And remote electric operation.
This product complies with GB/T 1985-2020 "High Voltage AC Disconnectors and Earthing Switches".
This product is suitable for 12kV~120kV high voltage disconnector and earthing switch electric operation
use.
2. Technical Parameters
1. Parameters applicable to high voltage disconnectors and earthing switches are shown in Table 1
Table 1
Maximum output torque Closing and
Actuator model Output angle
(Nm) opening time (S)
MR41E-1B 750 8±1 90°
Remark The above items can be customized according to user requirements.
2. The rated parameters of the motor operating mechanism are shown in Table 2
Table 2
project model MR41E-1B
Rated motor voltage V AC220, DC220
Rated control voltage V AC220, DC220
Rated motor current A 4.2
Motor power kW 0.55
Maximum output torque Nm 730
3. Applicable environment:
3.1 Altitude: General type ÿ 2500m; Plateau type ÿ 4000m;
3.2 Ambient temperature: Maximum temperature: 650C , minimum temperature: -400C, extreme minimum temperature:
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MR41E-1B Small Electric Operating Mechanism Installation and Operation Instructions
-55°;
3.3 Relative humidity: 95%RH;
3.4 Earthquake intensity: can meet the requirement of 8 degrees;
3.5 Ice thickness: ÿ20mm;
3.6 Protection grade: IP65;
3.7 It is not suitable for places with flammable substances, explosion hazards, chemical corrosion and severe vibration.
3. Characteristics of operating mechanism
3.1 Practicality
3.1.1 The mechanism can be electrically operated 'locally' or 'remotely' when it is powered on.
The motor is composed of a motor, a two-stage reducer and electrical control components.
The first stage gear reduction and the second stage worm gear reduction are transmitted from the output shaft to the isolating switch or grounding switch.
The output shaft rotation angle is determined by two strokes (micro-motion).
The switch controls the motor, and the action time error is ±1s.
3.1.2 Use the travel (micro) switch to control the output angle of the operating mechanism and the final position of the operation
Use electrical components and mechanical limiters to achieve smooth operation of the mechanism and reduce the impact force of the mechanism
This mechanism adopts a high-performance and reliable self-locking mechanism.
F10 series auxiliary switches can realize accurate output of tripping signals.
3.1.3 This mechanism can be operated electrically and manually, and the two can be mechanically interlocked.
When the switch is turned to other indicated positions, the crank hole will be blocked by the manual locking plate.
Manual operation cannot be performed, thus realizing the mechanical interlocking of manual operation and electric operation.
3.1.4 The box body is made of stainless steel plate welding structure. It has beautiful appearance, reasonable structure and good
High waterproof, dustproof and anti-corrosion performance, can adapt to various regional environments.
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MR41E-1B Small Electric Operating Mechanism Installation and Operation Instructions
Compared with riveted and screwed box structures, its appearance is lighter and more beautiful, and the box strength is more reliable.
And it has better waterproof and dustproof performance.
3.2 Economical
3.2.1 Only power supply voltage is required to operate, no other auxiliary equipment is required;
3.2.2 The parts of the mechanism are highly standardized, easy to process and assemble, and the parts of the series products are universal
High reliability and reduced installation and maintenance costs.
3.3 Simple maintenance and inspection
3.3.1 The operating mechanism has a simple structure and is easy to maintain. Maintenance and inspection can be carried out by opening the door.
check;
3.3.2 The motor and reducer in the mechanism are sealed and lubricated with grease.
No need to apply grease during the use period, no maintenance required;
3.4. Intelligent functions
This organization has the space and functional requirements for installing remote control terminals, and can realize intelligent
Energy control.
IV. Institutional Operation
This mechanism has three operating modes, namely manual, local and remote. Its control layout is as follows:
Transfer switch
Opening and closing buttons
Power circuit breaker
Incoming terminal
Figure 1 Control panel layout
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MR41E-1B Small Electric Operating Mechanism Installation and Operation Instructions
4.1 Three operating modes of institutions
(1) Manual mode: The mechanism is opened and closed by means of a crank.
Operation process: ÿ Before operating this mode, you need to turn the air switch of the power supply to the off position.
state;
Figure 2 The air switch is in the off state
ÿ Turn the switch on the panel to the manual position;
Figure 3 The transfer switch is in the manual position
ÿAt this time, the plugging plate has been opened. According to the opening and closing instructions on the panel, use the crank to manually
Dynamic separation and combination;
Note: When opening and closing manually, please use the crank handle to shake until it stops and observe whether the knife switch is open or closed.
Fits perfectly.
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MR41E-1B Small Electric Operating Mechanism Installation and Operation Instructions
(2) Proximity mode: The mechanism is opened and closed by the opening and closing buttons in the mechanism.
Operation process: ÿ Before operating this mode, make sure that all circuit breakers on the panel are in the on state;
ÿ Turn the switch on the panel to the near-motion position;
ÿUse the opening and closing buttons on the panel to operate;
(3) Remote control mode: remote opening and closing of the mechanism through integrated automation and other equipment
Operation process: ÿ Before operating this mode, make sure that all circuit breakers on the panel are in the on state;
ÿ Turn the switch on the panel to the remote position;
ÿAt this time, remote control is performed on this mechanism on the comprehensive system.
4.2 Mechanism wiring
The wiring of this mechanism is simple, the electrical maintenance is convenient, and the electrical control circuit is equipped with fault protection components.
It can effectively prevent overcurrent caused by external input power fluctuations and accidental short circuits inside the mechanism.
Damage to the electrical components of the mechanism.
5. Installation and debugging
5.1 Inspection and unpacking precautions
5.1.1 Please refer to the packing list for delivery details.
5.1.2 When unpacking, follow the direction indicated by the arrow and prevent water from entering.
5.1.3 Take inventory according to the delivery details list.
5.1.3 During acceptance, the following items shall be determined according to the unpacking status:
(1) Whether it is consistent with the order;
(2) Whether there is any damage during transportation;
(3) Whether the attachments are complete;
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MR41E-1B Small Electric Operating Mechanism Installation and Operation Instructions
5.2 Installation Notes
(1) Read the instructions carefully before installation;
(2) When installing, first fix the mechanism box to the foundation with four M12 bolts, and adjust the
Structure, make the output shaft center of the mechanism coaxial with the input shaft center of the body, and then pre-fix (mechanism outside
The shape and installation dimensions are shown in Figure 4).
(3) The installation of the mechanism and the main body is through the lower crank arm combination and the water gas pipe (according to the actual
size cut length) connection.
(4) After the above process is completed, open the door and turn the switch handle to manual.
Position, fully open the crank hole, and then insert the crank into the crank hole.
Shake the switch clockwise to close the circuit breaker, and shake it counterclockwise to open the circuit breaker (Type I: Clockwise to open the circuit breaker, counterclockwise to close the circuit breaker)
Observe whether the mechanism and the main body are in the correct position. If not, loosen the
Open the limit bolts to adjust the angle so that the positions of the two are relatively matched.
(5) The cable entry hole is installed at the bottom of the mechanism box, and a fireproof plugging box is opened on the bottom plate of the box.
The fireproof plugging box has two cable holes, each with a 1.5 mm2 control hole.
Cables, power cables, users can refer to the electrical schematics and terminal wiring diagrams for external wiring
Before connecting and wiring, check the electrical diagram and the mechanism model.
(6) The chassis is equipped with a temperature and humidity controller and a heater to prevent moisture inside the chassis.
When the ambient temperature is below 50°C , it can be opened manually or automatically.
Heater switch.
(7) After installation, make sure the grounding is reliable.
5.3 Maintenance
In order to maintain stable operating performance of the mechanism, it is recommended that users should disconnect the switch during power outages.
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MR41E-1B Small Electric Operating Mechanism Installation and Operation Instructions
(Earthing switch) Lubricate the movable joints of the body.
5.4 Instructions for use and ordering
Under the terms of the storage and use regulations, the user can use the product within 18 months from the date the product leaves the company.
If the product is damaged or does not work properly due to the quality of our product,
The manufacturer can repair it for the user free of charge.
Please specify the following when ordering:
1. Model of motor operating mechanism;
2. Model of isolating switch or earthing switch, and the number of operating mechanisms;
3. Motor rated voltage;
4. Rated voltage and voltage type of control circuit;
5. Rotation angle and action time of the output shaft of the operating mechanism;
6. Special requirements.
6. Common fault diagnosis and analysis
Phenomenon 1: After the electric mechanism is powered on, the motor power circuit breaker is turned on, but the mechanism is still without power.
state, and there is no sound of contactor K3 being attracted.
Cause Analysis:
(1) Check whether the power supply terminals of the mechanism are connected correctly or are loose.
(2) Contactor K3 cannot be energized, please replace it. (There is a K3 label on the contactor)
Phenomenon 2: For AC motor drive, after power is turned on, open the air switch, contactor K3
There is a sound of closing, the motor mechanism is energized, but the isolation circuit breaker cannot be disconnected by the opening and closing buttons.
The switch is open and closed.
Cause Analysis:
(1) The transfer switch is not turned to the near-movement position.
(2) The rectifier bridge is broken down. (Generally rare)
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MR41E-1B Small Electric Operating Mechanism Installation and Operation Instructions
Phenomenon 3: Press the opening button to close the isolating switch, and press the closing button to open the isolating switch.
Cause analysis: The opening and closing buttons are connected reversely.
Solution: Check the electrical diagram, the corresponding wire numbers, and connect the wires according to the correct wiring diagram.
Phenomenon 4: After the switch is opened (closed), the motor does not stop rotating.
Cause Analysis:
(1) The travel switch is not triggered;
(2) The opening and closing positions of the travel switch do not correspond;
(3) The travel switch is damaged;
Solution:
A. Adjust the position of the travel switch mounting plate so that the switch can be triggered normally and the trigger position
The location meets the organization's schedule;
B. Swap the opening power terminal with the closing power terminal;
C. Replace the travel switch with a new one.
