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Smart, Compact, affordable LDC Unit
for Office Buildings

MODEL: LDC 010-3 10KVA

Description:

In multi storey office buildings, no energy saving devices for fluorescent lighting have been developed yet and it has been specifically not been possible to control the tension to fluorescent lights at each separate level. These buildings have utility rooms on each floor where all the breakers and electrical systems are kept. This unit is specifically designed for the purpose of controlling the output on each individual floor.

Features:

  • Automatic and manual operation
  • Programmable scheduling
  • Solid state circuitry (no moving parts)
  • Microprocessor driven (PLC)
  • Single enclosure construction
  • Fast, easy installation; Retrofit friendly.
  • Integrated automatic bypass
  • Low supply voltage protection
  • Accepts unbalanced load
  • Easy to operate
  • Brand name components
  • Two years warranty
  • CSA Certification Canada & US
  • NEMA and Mfgr. Guideline compliance
  • Direct device control (motion & lumen sensor)
  • Energy Management System via RS232 or RS 485

Specifications

Nominal output voltage:
Step variable

Operating temperature:
-40 degrees C to +40 degrees C

Cooling:
Enclosure mounted fans

Protection degree:
IP 21 (IP 55 option available)

1 or 3 Phase voltage:
120/208v, 230/400v, 277/480v 347/600v

Control Mechanism:
Solid state, microprocessor-driven PLC

Voltage stepping:
Contractor

Harmonics:
No additional harmonics introduced

Enclosure configuration:
Single, compact wall-mountable

Transformer design:
Unique design accepts balanced, unbalanced loads

PLC control protocol:
RS232, RS485

Application

LDC lighting controller can be used for fluorescent lighting indoor and outdoor, all kinds of office buildings, hallways, stairways, schools etc.

About The System

The system has 3 stages of operation:

  • 347 v or 277v or 120 v hydro voltage
  • 305 v or 225v or 105 v save voltage
  • 0 v (no volt) or operation P.L. lamps and/or emergency lamp

System Operation

The system will operate starting at 7:00 a.m. automatically (according to the user’s needs) and will immediately shift to save voltage. At this tension no changes in the intensity of lighting will be felt and the fluorescent lights will not be affected by a lower tension. I have designed completely automatic program that will control the system according to hours of operation as required by the user. At the end of the work day, the system will move into position zero, where only emergency lights operate, or it will be possible at position zero, to automatically bring into operation p.1 bulbs in each office according to the user’s preferences.

System Functioning

The system works completely automatically, according to work hours determined by the user, and it will be possible to add to the system the following options:

  • Motion sensor mounted a the exit point from the elevator or in offices and the lighting will switch on according to the user’s requirements for a period of time he/she uses the office.
  • P.L. (7w) bulbs can be added in each office in numbers required by the customer.
  • The computer program of the system can work in connection with RS 232 or RS 485, as attachment to the building central energy saving system, if one exists.

Dimensions:
 

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