Description

Dear sir,
 we are manufacturers of isolator(disconnector) drive boxes upto **0kV  we are large suppliers for MOM(Motor Operated Mechanism)boxes and BOM boxes(bom pin box,key interlock boxes,RG manual boxes)for ISOLATORS up to **0kV.we are supplying in both MS,and Aluminum with powder coating and galvanizing.Presently we are supplying to to SIEMENS LIMITED and some other major supplyers MEGAPOWER ENGINEERING Electric Drives are weatherproof units specially designed for LOCAL / REMOTE motorized
operation of outdoor and indoor Electrical High Voltage Isolators. Drive torque and speed range of MEGAPOWER drives suits any
HV / EHV isolator (Gang – operated up to **5 kV and synchronized individual-pole operated for **0 kV). Any operating angle up to
**0 deg. movements (**0 deg. for achieving the requirement of “Over-Center” operation) at the drive shaft is available.
Due to compact, self-contained design, the drive can be mounted at the ground level, and directly coupled to the isolator shaft.
Different types of Coupling and Lever operations are possible to suit different makes of isolators.
Fully interlocked, local, manual operation of the Isolator is provided.
Control pack unit also consist of solenoid interlocking devices.
Required interlocking devices can be provided in Control Pack Unit.
Salient Features:
Robust DesignSalient Features:
Robust Design
Versatile Range
Positive Mechanism
Upto **0° Operation
Self Locking
Self-Sufficient Controls
Easy Installation
Types of MEGA POWER Isolator Drives
Operating time periods given below are nominal. Other operating time periods and operating torques are available with special
design.
RATED TORQUE OPERATING TIME DRIVE TYPE
*0 MKg 7 to 9 Secs MD - *1
*5 MKg 7 to 9 Secs MD – *2
*0 MKg 7 to 9 Secs MD – *3
Design Features of MEGAPOWER ENGINEERING Electric Drives:
MOTOR
Flange mounted totally enclosed three-phase squirrel-cage **5V induction motors selected on the basis of Isolator torque and
operating time requirement.
D.C. motors and other operating voltages are also available, to meet customer requirement.
REDUCTION GEARING
The MEGAPOWER ENGINEERING Electric Drive uses specially designed Spur gear and Worm gear
combination in a compact, self-locking and efficient system. Well Lubricated (Grease or Oil) enclosed gear
system is designed to withstand full torque of stalled Motor at **0% rated voltage, resulting in a fail-safe,
long lasting and trouble free drive.
CONTROL PACK UNIT
The CONTROL-PACK unit is a robust; weatherproof (IP*5 to IS: ********8) cabinet through which the output shaft passes. It
incorporates all electrical and mechanical control and protection equipment.
Limit switches with snap-action contacts are fitted as a standard feature; each switch is actuated by a shaftmounted
cam, easily settable at site to give any operating angle up to **0. This makes precise setting
possible, free from any play of levers or gears.
DRIVE COUPLING
The drive can be connected to the Isolator shaft / pipe through a Flange coupling. Optionally other types of couplings / lever
mechanism can be offered.
STANDARD CONTROL EQUIPMENT
2 nos. electrically interlocked contactors – AC or DC operation.
1 no. Bimetal Overload relay with Single Phasing protection.
1 no. Local / Remote selector switch.
1 no. each Close and Open push buttons.
3 nos. AC main and 2 nos. Control circuit HRC fuses.
SPECIAL TESTS
Each Drive is tested for stalled Torque withstand at **0% of rated voltage of motor, as a part of Routine Testing.
ADDITIONAL (OPTIONAL) ACCESSORIES AVAILABLE:
EXTRA LIMIT SWITCHES: Individually cam settable switches for indication / any special use.
AUXILIARY SWITCHES: Any combination of ‘NO', ‘NC' or ‘Make-before-Break' Contacts can be provided.
COMMON CONTROL To synchronize the operation of three single pole isolator drives. Complete with an out of
CABINET: step interlocking relay.
SPECIALLY DESIGNED / TAILOR MADE DRIVES SYSTEMS, SUITABLE FOR:
1. Indoor cubical mounted isolators.
2. Remote operation unit Auto reclosures schemes MEGA POWER has been manufacturing and supplying the Electric Drives for EHV Isolators for past 5 years.
MEGA POWER has a vast experience of design, manufacture and supply of more than **0nos. of Electric Drives for the EHV
Isolators – Gang operated as well as Individual Pole operated types. Most of MEGA Power’s Drives have become parts of the
manufacturer's (OEMs) of the EHV Isolators.
Many of the MEGA Power’s Isolator Drives have been exported by the Isolator Manufacturers and have been providing satisfactory
services.
 if you have requirement contact us.
thanking you 
with best regards
venkannababu
megapowerenginweering