News & Events

What Is a Voltage Stabilizer?
A voltage stabilizer is a piece of electrical equipment designed to provide constant clean power( i.e stable voltage at its output terminals regardless of the changes in
the input/incoming supply voltage). By doing so, electrical machines and equipment are protected against sustained over-voltages/Voltage spikes, under-voltage/ brownouts, and other transient surges.

Why Voltage stabilizers are required.
Most electrical appliances and machines are sensitive to voltage fluctuations. Voltage spikes/sustained overvoltage and momentary/sustained under voltages are
detrimental to the life of electrical equipment and their functionality over time. By being able to regulate the input voltage to provide a stable output voltage, the
automatic voltage regulator(AVR) will protect your equipment from cases of voltage spikes, brownouts, and other transient surges.

The LEGA voltage stabilizer from power controls.

Power controls limited is a market leader in the provision of electrical engineering solutions in clean, efficient, and well-regulated power. As an authorized distributor, power controls limited sells, supplies, and installs LEGA voltage stabilizers across eastern Africa.

The Lega voltage stabilizer is a versatile servo-controlled automatic voltage regulator which precisely, rapidly and safely regulates output Voltage through serial booster transformers connected to the mains and a precise variac combined with a Microprocessor Controlled Digital control unit.

They range from as low as 7.5KVA to 630KVA in both single-phase and three-phase. The Lega stabilizer has a regulation speed rate of 90V/Sec and an efficiency of more than 98% making it a highly stable and quality Avr. It has a wide input voltage regulation range with a subsequent undistorted output.

Application areas.
● Printing Press and Sensitive Electronic Typesetting Machines.
● Data centres.
● Inductions Heating Tools.
● Electroplating Systems.
● All Kinds Of Electronic Weaving, Embroidery, and Knitwear Machines.
● Test and Research Laboratories
● Factory, Hospital, Hotel, and Apartments.

Value Proposition.
Having efficient, well-protected machines, electrical and telecommunication equipment is important towards achieving a well-engineered system or process.

There exist numerous voltage stabilizers in this competitive space of voltage regulation, most of these stabilizers are designed to avert cases of unstable voltages. However, few have a good value proposition as LEGA, a competitively priced, failsafe solution that enables you to get an impeccable voltage regulator at a bargain.

For more information regarding the costing, functionality, and pricing of the Lega voltage stabilizer, please do not hesitate to consult with us. Our technical team will guide and advise you accordingly.

PHASE FAILURE RELAYS

Three-phase equipment, more so motors, must be connected to the rated nominal voltage for them to function well. If there is any loss/disconnection in any of these
phases, then the motor will continue operating with the remaining two. This phenomenon is called phase failure or single phasing.

When single phasing occurs, the motor continues to operate at reduced speed and experiences vibrations. Moreover, the line current also increases appreciably in the
remaining phases. This increase in current leads to internal heating of the motor windings. If not disconnected/isolated quickly, the windings will burn out. It is important to note that three-phase Induction motors may also fail to start in cases where phase failure occurs when they are not in operation.

In a nutshell, a phase failure is not a desirable phenomenon for the operation of induction motors. Consequently, we should always take prudent measures to protect
them against single phasing.

Power controls Ltd; a market leader in electrical engineering solutions sells phase failure relays (both single-phase and three-phase) by Foxtam that will protect your
motors from the detrimental effects of single phasing.

If you are interested in protecting your machines, please do not hesitate to consult with us. Our in-house team will guide you in choosing the best solution that befits
your needs/design specifics

The Industrial Power Gem.
The consequences of poor power quality are far-reaching; these may include unscheduled downtime, low equipment life, reduced productivity, and penalties that have a significant financial impact on the end-user.

However, the equalizer technology from Power controls by Elspec which is the world’s fastest real-time power quality enhancement system optimizes all power quality factors and more, for a variety of dynamic fast-changing balanced, unbalanced & single-phase loads.

The equalizer features electronic switching of 5-20 Milliseconds @ 50 Hz, transient-free switching, voltage support, harmonic filtration, voltage flicker & current spike reduction.

The Equalizer offers many features in one simple solution and it is a unique system that ensures dynamic load compensation, which can lead to substantial energy efficiency.

The equalizer solution is best suited for the below-listed industries/Areas:
1. Marine Vessels.
2. Generators(Emergency Standby & Stand-Alone Operation).
3. Wind Energy.
4. Hospitals, High-Rise & Other Commercial Buildings
5. Electric Trains.
6. Plastic Injection Moulding.
7. Welding Machines.

For more information on the pricing, working principle, and functionality, please do not hesitate to consult with us.

The introduction of smart meters by KPLC has brought forth unprecedented problems to electricity consumers, especially those with large inductive loads. Most of the available old range of pf controllers in the market are not fast switching and also tend to use one CT as opposed to the new range of pf controllers that use three current transformers. The efficiency and accuracy of an automatic power factor correction bank in correcting the low power factor is subject to the quality of the controller used.

Power factor controllers measure the requirements of reactive energy of a given electrical installation, then relay commands of connection and disconnection of capacitors to keep the setup cos φ close one or regulate the pf.

The MCE-6 ADV (6 steps) and MCE-12 ADV (12 -Steps) controllers by Lifasa are the most expeditious (10 sec switching between steps) pf controllers available in the market.

The key features synonymous with these controllers include :

1. They incorporate a smart automatic process that detects the necessary parameters, such as C/K ratio, phase sequence, numbers of installed stages, and the program.

2.Incorporates an LED and an output relay to warn in case that any of the following circumstances happen: Lack of compensation, Over-compensation, Over-voltage, Over-current, CT unplugged, and Current below the limits.

Power controls limited, a market leader in offering electrical engineering solutions, is the authorized distributor of all Lifasa solutions. Our in-house team consisting of qualified engineers and technicians will advise and recommend the best solution that befits your needs.

Please do not hesitate to consult with us regarding the pricing and functionality.

Low voltage panels are integral components of the electrical distribution system. These panels are essential for branching electrical circuits. The main component of the LV panel is the switchgear. Switchgear comprises electrical disconnections that are essential for the control, isolation, and protection of electrical equipment. They include fuses, circuit breakers, contactors, Earth Leakage Circuit Breakers (ELCBs), and relays. 

Power controls Ltd is an industry leader in the design, manufacture, assembly, as well as importation of; quality,well-engineered, and cosmetically appealing LV panels and control panels. We produce custom made panels, such as; Main LV panels, Sub-boards & Distribution boards, and Motor starter panels. We are always a step ahead of the latest trends and products in the evolving electrical and electronics industry. Our panels are engineered with regard to the desired IP protection and the required forms of separation.

Also, we convert old electrical panels to more compact efficient, and maintenance-free systems. Being the main distributor of Legrand (France) products in Kenya, our customers are guaranteed the best quality and technical support, with respect to these panels.

Our panels, free-standing, and wall-mounted.They have different fixing accessories created for easier assembly and finishing. These panels are built around the below-mentioned features/advantages:

• Easy and safe to use.

The Legrand Panels from Power Controls Ltd are designed with inherent safety with minimal electrical accidental risks, which makes it easier for the technicians to operate on them. They are supplied assembled to save time when installing.

We always consider the various forms of separation (2B, 3B, 4B) in our designs and the desired IP standards, for instance, IP30 without door/IP40 with a door while IP43 with the dedicated kit.

• Modularized.

On many sites, efficient utilization of floor space is vital in achieving a succinct design. We customize our panels as per your available floor space. All our enclosures are supplied ready to assemble in a modular format.

• Expandable

Our cubicles are designed to be interlocking and expandable, to meet growth in load demand. The panels have adequate spare capacities for additional circuits in the future.

• Durability 

The Legrand panels are made of rugged metal enclosures which are powder coated, with a polyester powder paint finish, then cured to produce a hard-wearing gloss finish. This makes them robust,vandal-proof, and weatherproof for a long-lasting operation in all environmental conditions.

For any inquiries regarding LV panels plus any other switchgear solution, do not hesitate to contact us via +254714398937/info@powercontrols.co.ke or visit our chat function on the bottom right.