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To operate the poles of switch disconnector-fuse combinations with or without earthing switches, either manually or electrically, we propose a complete range of mechanisms, suitable for our switches, but also, with some minor adaptations, to switches of other manufacturers.
Güral MVMD, SHD series operating mechanisms offer the multiple features necessary to operate the indoor switch disconnector-fuse combinations with or without earthing switches either locally or remotely (MD), in the best condition of safety for the operator and the grid.
Güral MD, MVHD and HK series operating mechanisms offer the multiple features necessary to operate the outdoor switch disconnector-fuse combinations with or without earthing switches either locally or remotely (MD), in the best condition of safety for the operator and the grid.
They are designed to ensure the highest reliability over years, with the use of corrosion-free materials for the enclosure and external devices. The inner components (MD, MVHD) are protected by the weatherproof cabinet IP 55 and by anti-condensation resistors.
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MVMD Series Indoor Motor Operating Mechanisms
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Güral MVMD Series Motor Drives are driving solutions for almost any type of mechanically driven electrical devices. The flexible configuration capability and optimized characteristics of MVMD units for medium voltage system devices and DC disconnectors have proven Güral MVMD Series Motor Drives as one of the leading choices all over the region.
All MVMD Series Motor Drive Unit configurations are tested to satisfy IEC 60694 |
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| Terminals |
High quality terminals enables easy user cabling. Terminal quantity varies by product configuration. |
| Contactors |
High quality contactors controls the motor behaviour according to user commands. |
| Drive Shaft |
Drive shaft conducts the mechanical torque to optional driving arm. |
| Motor Protection Switch |
High quality motor protection switch protects the motor from anymechanical / electrical overloads and ensures the product endurance. |
| Security Switches |
Security switches prevents any electrical operation during manualdriving and protects the user from undesired mechanical forces. |
| Limit Switches |
Adjustible limit switches enables the user to control the driving angle and limit driving arm positions. |
| Motor |
High quality, IEC compliant motor units promises reliable
operation, long endurance and low energy consumption. |
| Motor Carrier |
Special designed motor carrier plate enables double side motor assembly (right or left) and is tested against 3.5Fmax to ensure unit robustness. |
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Technical Specifications & Options For MVMD Series Motor Drives
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Standard Specifications |
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| Controlling Capabilities |
Remote & Local |
Operating Capabilities |
Motor & Manual |
| Operating Time |
Operator dependent |
| Security interlock /w other units |
Electrical |
| Displacement |
108 to 181 mm linear |
Other Units & Accesorries |
Electrical |
AC or DC supplied Mo tor Unit
Motor Protection Switch
Security switches
Limit Switches
Contactors
Standards satisfying wiring
Easy-install terminal blocks |
| Mechanical |
4 point assembly plate
Manual driving arm |
| Anti-corrosion |
IP55 Class protection for motor units
Electrogalvanized metal components, with minç plating thickness @ 20µm |
| User |
| In-bag wiring diagram, User Guide and other documentation |
Options |
Control Circuit Supply Voltages |
DC 24V, 48V, 110V, 220V.
AC 110V, 220V |
Motor Supply Voltage |
DC 24V, 48V, 110V, 125V, 220V
AC 230V – 1Ø, 380V – 3Ø |
Auxiliary Switch Types |
| 2NO + 2NC, 4NO + 4NC, 6NO + 6NC, 8NO + 8NC, |
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SHD Series hand operating mechanisms
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SHD Series hand operating mechanisms are only used for the operating of indoor switch-disconnectors, indoor switch disconnector-fuse combinations and for their earthing switches.
The position of the hand drive bar (when the disconnector is closed-Picture 1 and when the disconnector is open -Picture 2) is shown in the pictures below. When the disconnector is closed, the bar must be perpendicular to the ground and when the disconnector is open, the bar must be parallel to the ground.
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| Picture 1 |
Picture 2 |
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MD Series motor operating mechanisms
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Güra MD series motor drives is the result of many years of continuous improvements in the field of reliability and easiness of use. MD series motor drives are manufactured in several types, the overall dimensions of the mechanism remains the same, in some special cases, optional accessories are installed inside the housing due to customer request.
MD Series motor drivess can carry out the electrical operation of the driven device; by means of an electrical motor which drives a chain system driving the vertical mechanic load terminal shaft, or the manual operation of the device, by means of a crank to be inserted to excite the chain mechanism.
MD Series motor drives are generally supplied to carry out 90º rotation on the mechanical load terminal shaft, but in some special cases due to customer request, the driving angle can be pre-adjusted for different angles.
Integrating selected and tested components, it can operate within the standard IEC temperature range (-25/+ 40°C ), but also, upon request, down to -50°C and up to 50°C .
The motor and auxiliary voltages can be chosen according to the available supply on the substation, AC or DC, from 110 V to 400 V.MD Series motor drives supplied by Güral are designed so as to ensure that they are required first maintenance after 1000 switching operations.
All MD Series motor drive configurations are tested to satisfy IEC 60694.
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Technical Specifications For MD Series Motor Drives
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Standard Specifications |
Local & Remote |
| Operating Capabilities |
Motor & Manual |
| Operating Time |
7-9 sec for half-cycle. |
| Security interlock |
Mechanical & Electromechanical |
| Other Units & Accesorries |
Electrical |
Motor protection switch
Local & Remote switch
Adjustable limit switches
Security switches
MCB fault signals
Local position signals
Manual driving signal
Standards satisfying wiring
Easy-install terminal blocks |
Mechanical
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4 point steel-construction assembly bar
Inter-units mechanical interlock
Electromechanical operation lock
Mechanical cover lock |
Anti-corrosion |
IP55 Class protection
Aluminium alloy casing
Electrostatic case painting @ 70µm
Heating Resistor, auto-controlled by adjustible thermostat
3 point conditioning airways |
User |
In-case wiring diagram, user Guide and other documentation
In-case manual driving arm
Integrated inner lighting |
Options
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Rated Supply Voltage |
AC 110V/1Ø, 220V/1Ø, 380V/3Ø
DC 110V, 220V |
Rated Control Circuit Voltage |
AC 110V, 220V
DC 48V, 110V, 220V |
Applicable Auxiliary Switch Types |
| 2NO/2NC, 4NO/4NC, 6NO/6NC, 8NO/8NC,10NO/10NC, 12NO/12NC. |
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MVHD Series hand operating mechanisms
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Güral MVHD Series Hand Drive Units offer a robust manual driving solution for almost any applications and climates. MVHD Series Hand Drive Units find widespread application area, including medium voltage networks, DC applications and railway solutions. MVHD Series Hand Drive Units are designed of capability to serve in harsh outdoor conditions, including very cold climates with minimum average temperatures down to -40°C (-32°F) and very hot climates with maximum average temperatures up to 50°C (122°F).
MVHD Series Hand Drive Units arrives in its water - proof case with full equipment and user guides.
All MVHD Series Hand Drive Unit configurations are tested to satisfy IEC 60694.
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1. Handle |
The polyamid handle is designed for an easy grasp. |
2. Operating Arm |
The hot deep galvanized operating arm of460mm enables a torque ratio of 1/6,minimizing the effort needed to drive anydevice. |
3. Mounting Flange |
The mounting flange is St 37-2 alloy, and the steel is protected against corrosion by120µm hot deep galvanisation. Connectionis made by 2xM12xL bolts, 2xM12 springwashers and 4xM12 plain washers, as explained on the overall layout drawing. |
4. Driving Arm |
The driving arm is composed of non-corrosive parts, and is compatible with 1"connection pipes or rods. The rotationability in both XZ and XY axises provides MVHD units' assembly flexible and possible on any supports. Please see details below. |
5. Position Label |
The color aluminium label indicates the position of the MVHD and the drived unit. |
6. Lock |
The optional lock provides extra security against unauthorized operations. |
7. Release Button |
The water-proof release button energizes the locking coil to enable manual operation. |
8. Casing |
The casing is made of 2.5mm aluminium, and is electro-static painted. |
9. Frontal Cover |
Assembled by corrosion-proof inox bolts, the aluminium frontal cover is removable for any inside operations by the operator. |
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1. Thermostat |
The thermostat is adjustable to maintain the inside temperature between 0 to 30ºC. The default value for the thermostat is 25ºC |
2. Core Mechanism |
The core of the unit is made up of Zn plated steel components and the electromagnetic coil operating at the preferred auxiliary voltage. |
3. Auxiliary Switch |
The auxiliary switch is optional for MVHD units, and can be ordered as from 2 to 8 NO/8NC contacts. |
4. Terminal Blocks |
High quality terminal blocks are tested to comply with IEC 60694 dielectric tests. The quantity of blocks are determined by the electrical component composition of the unit. |
5. Heating Resistor |
The heating resistor is a standart component for MVHD units to assure the proof of corrosion inside the unit and the long endurance of electrical components in harsh environmental conditions. |
6. Upper Airway |
Upper airway lets the moisture and excess heat out, while keeping dust and other unwanted environmental particules away. |
7. Lower Airway |
IP 55 airway to let fresh air in. |
8. Lower Cover |
The lower cover is an electro-static painted aluminium plate and is assembled to the main case by INOX bolts. It can be drilled for cable entry or entirely removed to be replaced by custom covers designed by the user. |
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Pipe plug-in
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1. Pipe Connection |
The pipe connection is compatible with 1" pipes. |
2. Double axis cantilever |
The rotation ability of the cantilever in both XZ and XY axises provides MVHD units' assembly flexible and possible on any type of supports. |
3. Support Connection |
The M16x75 HDG bolt and the M16 HDG nut connects the driving arm to the operating arm. The driving arm can be dismounted by releasing the connection nut and bolt, in case of any need to ease the pipe connection to the pipe connection component. If needed, the driving arm can also be mounted on the opposite side ofthe operating arm, to inverse the driving direction |
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MVHD Series Hand Drives Technical Specifications & Options
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Standard Specifications |
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Controlling Capabilities |
Local |
Operating Capabilities |
Manual |
Operating Time |
Operator dependent |
Security interlock /w other units |
Electromechanical |
Displacement |
150mm vertical |
Torque conversion ratio |
1/6 |
Case Color |
RAL 7032 |
Other Units & Accesorries
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Electrical |
Security switches
Manual driving signal
Standards satisfying wiring
Easy-install terminal blocks |
| Mechanical |
4 point steel-construction assembly bar
Inter-units mechanical interlock
Electromechanical operation lock
Mechanical operation lock
Mechanical cover lock
Position indicators |
| Anti-corrosion |
IP55 Class protection
Aluminium alloy casing
Electrostatic case painting @ 70µm
Heating Resistor, auto-controlled by adjustible thermostat
2 point conditioning airways |
| User |
| In-bag wiring diagram, User Guide and other documentation |
Options |
Electromechanical InterlockSupply Voltages |
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DC 24V, 48V , 110V, 220V.
AC 110V, 220V |
| Auxiliary Switch Types |
| 2NO+2NC, 4NO+4NC, 6NO+6NC, 8NO+8NC |
Inner Conditioning Equipment |
| Adjustible thermostat 30W Heating Resistor at supply voltages: DC 110V or 220V, AC 110V or 220V. |
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HK Series outdoor hand operating mechanisms
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HK series outdoor type hand drive mechanisms are used for operation outdoor switchgear such as disconnectors, switch disconnectors, switch disconnector-fuse combinations and earthing switches.
There is only one type of HK series outdoor hand drive mechanisms with padlocking facility.
HK series outdoor type hand drive mechanisms can be used together with standard articulatory system.
When lever is in up position disconnector or earthing switch is closed, in down position is closed.
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Articulatory system |
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| WORKSHOP |
Atatürk Sanayi Sitesi, Fahri Korutürk Caddesi, 323 Sokak, No:1, 34900
Hadımköy – ISTANBUL / TURKEY |
Tel: +90 212 771 24 95-99 / 771 27 60-61 Fax: +90 212 771 27 62 |
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| OFFICE |
Rıhtım Cadddesi, C Blok, No:59, Kat:2, Daire: 25, 34425
Karaköy – ISTANBUL / TURKEY |
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Tel: +90 212 249 82 80 Fax: +90 212 244 25 07 |
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| copyright © 2007 Güral Elektrik Malzemeleri Ticaret ve Sanayi A.Ş. |
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