DR. LIGHT PL Series is the energy saver for lighting system. It delivers a continuous fixed and stable voltage at all times within a 2% margin of tolerance, maintaining consumption at the nominal levels, ensuring that the lamps are not subjected to over-voltage (reduce the lamp lifespan) or under-voltages (affect the lamp output). DR. LIGHT PL SERIES adjusts the supply voltage for the lamps to meet actual demand in a real time environment. As a result, power consumption is decreased by up to 40% while lighting uniformity is maintained.

DR. LIGHT PL Series provides a remarkable power saving opportunity and an attractive ROI. It also prolongs the service life of lighting sources and reduces maintenance cost of the lamps.

DR. LIGHT PL is suitable for all kinds of lamps except bulb, LED and any other lamp with a constant output ballast.

Phrase imbalance means that the light loading connected to each phrase is different.

Yes

The average service life is 5 years and we guaranteed it for a period of 2 years commencing with the date of purchase.

The saving rate will largely depend on the lamp type, the length of the saving time and the voltage reduction level. Usually it is between 20% to 40%.

Yes. There’s a RS485/RS232 communication port on PL from which you can connect it to various control device, including computer, astronomical clock, etc. We also have our own control software so the clients can set the saving voltage and time according to their actual needs.

The input of DR. Light PL should be connected to the main power supply, while its output connected to the lighting load.

Yes. Please consult with our sales people for details.

For technical issues, please refer to the Technical Manual. If the problems still exist or they are not stated in the manual, please email or call our sales people and they will do their best to help. You’re also welcome to bring your technical people to visit our factory.

No.

The remote control system is still in the experimental stage. For more details, please consult with our sales people.

Yes. Please specify the rated voltage of your country before order.

DR. POWER is guaranteed for a period of two years commencing with the date of purchase, against defects arising from faulty manufacture, subject to compliance with product specifications and installation guidelines. The Seller promises the original Buyer to repair any such defects, or at the discretion of the Seller to replace the defective product without charge, provided that the product is used under normal conditions as outlined in the Seller's product and technical information. All units should be installed according to the Seller's published Installation and Commissioning Guide. The product guarantee does not cover incorrect installation, accidental damage, misuse, abuse or neglect on the part of the user, and is void if the product is altered in any way or used for a purpose for which it is not intended. In the case of such defects claimed by the Buyer, the Buyer shall return the defective part(s) to the Seller carriage prepaid, and the Seller shall either repair or replace the defective part(s) free of cost to buyer, and the repaired or replacement part(s) shall be forwarded to buyer carriage prepaid; where defective part(s) is(are) found by the Seller to be outside the scope of the Seller's Guarantee, the Buyer shall pay the cost of repair and replacement(s), and carriages both ways.

When starting, an AC induction motor develops substantially more torque (150% to 200%) than is required at full speed, while drawing 8-10 times nominal current (In). Result 1: the stress created by the excessive torque is transferred to the mechanical transmission system, resulting in excessive wear and premature failure of gears, belts, etc. Damage can be inflicted on the machinery which can be dangerous and expensive to correct. Result 2: the sudden draw of 8-10 times nominal current could, apart from consuming more electricity than needed, destabilize the power supply and disrupt production.

DR. POWER works as a soft starter & energy saver. Through its embedded software it continuously monitors the “efficiency” of the motor to ensure the input power to the motor is matched exactly to the load as it changes.

DR. Power provides immediate and long term benefits including – Soft Start, Optimization, Soft Stop, Improved Power Factor and Lower Maximum Demand. It increases reliability and produces a more efficient, cooler operating, smoother and quieter motor with increased life and reduced maintenance costs.

Soft start is an electronics term describing any circuit which reduces excess current during initial power-up.

The saving rate will largely depend on the operating conditions and parameters of the motor. The more time the motor is running under light-loaded or even empty loaded condition, the higher the saving rate could be. It can be up to 40% according to our client reference.

Tri-phase/ 380–440Volts/ 2.2 - 315 KW OR Tri-phase/ 220Volts/ 2.2 - 186 KW. If you would like to order any models out of our product range, please consult with our sales people.

DR. POWER is highly recommended for Air Agitators, Baggage handling, Bottling lines, Circular saws, Compressors, Conveyors, Crushers, Die-casting machines, Drying plant, Escalators, Extruders, Granulators, Grinders, Injection-moulding, Hydraulic systems, Machine tools, Mixers and blenders, Oil Wells, Paper refiners, Pulpers, Presses, Pumps, Refrigeration, Sewing machines, Vacuum-forming weaving, knitting, etc.

No, DR. POWER is not suitable for air-condition or elevator because the working principle of them leaves very little saving space for DR. POWER.

In common with all Thyristor based switching devices, DR. POWER produces harmonics during Ramp Up, Ramp Down and in the Optimizing mode. The only significant harmonics generated are the 5th and the 7th. All harmonics figures are much lower than the recommended range.

Please consult with our sales people and refer to the most updated price list.

The average service life is 5 years and we guaranteed it for a period of 2 years commencing with the date of purchase.

No.

It is recommended that you have a site survey for the motors, in order to obtain electrical parameters such as capacity, power factor, current, etc.

The installation is easy and any qualified electrician can do the job, but it is highly recommended that the operator should read our Installation and Commissioning Manual before installation.

Yes. Please consult with our sales people for details.

For technical issues, please refer to the Installation and Commissioning Manual. If the problems still exist or they are not stated in the manual, please email or call our sales people and they will do their best to help. You’re also welcome to bring your technical people to visit our factory.

Production time is usually two weeks after client’s confirmation of order.

No. For an accurate reading of the load conditions and operating parameters, DR. POWER can only be used on one motor.

Yes, with additional charges. For details, please consult with our sales people.

DR. POWER is guaranteed for a period of two years commencing with the date of purchase, against defects arising from faulty manufacture, subject to compliance with product specifications and installation guidelines. The Seller promises the original Buyer to repair any such defects, or at the discretion of the Seller to replace the defective product without charge, provided that the product is used under normal conditions as outlined in the Seller's product and technical information. All units should be installed according to the Seller's published Installation and Commissioning Guide. The product guarantee does not cover incorrect installation, accidental damage, misuse, abuse or neglect on the part of the user, and is void if the product is altered in any way or used for a purpose for which it is not intended. In the case of such defects claimed by the Buyer, the Buyer shall return the defective part(s) to the Seller carriage prepaid, and the Seller shall either repair or replace the defective part(s) free of cost to buyer, and the repaired or replacement part(s) shall be forwarded to buyer carriage prepaid; where defective part(s) is(are) found by the Seller to be outside the scope of the Seller's Guarantee, the Buyer shall pay the cost of repair and replacement(s), and carriages both ways.