Eco-ficient Solutions - Hager

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Simple Energy Saving Solutions - Product Combinations Example 2: Products used: Scene control Time Switch EG203E & Dimmer EV102 By combining the operations of a dimmer and time switch significant energy savings can be realised. The previous pages of this document have shown typical applications of stand-alone products to provide energy saving solutions, however by combining some of these products even greater reductions in energy consumption can be achieved. As most applications are unique in their use of energy and have different lighting requirements, the following examples may be of help in determining what could be possible to further enhance the reductions in energy usage and cost. The products are easy to install, can be fitted in standard modular enclosures based on the 17.5mm design and can be quickly mounted on DIN rail. They are easy to set and programme and therefore can be changed for future requirements. Overall the installation can contribute to the improvements in the energy performance rating of the building. The 2 channel weekly time switch can be used to control the lighting more effectively during the evenings and weekends when the building is unoccupied. The heating can be similarly switched off during these same unoccupied periods. Additionally the time switch can also be programmed with dimmers so that the lighting can be dimmed at certain times during the day. For example the first setting could be in the morning when the lighting could be dimmed as the natural daylight could be sufficient to provide enough ambient light. The dimmer could be operated later in the afternoon as daylight reduces and eventually reaching full lighting levels during the evening. The overall effect will be to only use energy when it is actually needed. Benefits: • The time switch ensures that the lighting and heating is only used when they are needed and do not rely on people to remember to switch them off. • Energy consumption is further reduced with the dimmer control so that the lighting matches the occupant’s requirements against available usable daylight levels. Example 1: Products used: Dynamic lighting Presence detector EE812 & Dimmer EV102 Example 3: Products used: External building signage control Time switch EG103E & Twilight switch EE171 The combination of the presence detector coupled with the dimmer provides a simple but effective control of lighting whilst reducing energy. The presence detector senses movement in the building and controls the lighting depending on occupancy activity. In addition the presence detector senses the varying ambient light levels in the building from windows, skylights etc. and provides a controlled output to the dimmer to maintain the required preset constant level of lighting for the occupants. Benefits: • The presence detector ensures that the lighting is switched off when the building is unoccupied. • The presence detector maximises the use of daylight to minimise the use of artificial lighting. Combining these two products provides an effective use of exterior building signage based on daylight and night time requirements. The twilight switch is programmed to ensure that the exterior signage only activates against a preset low level of daylight, ie switches on at dusk and switches off at dawn. With the addition of a time switch further controls can be integrated to control signage use over weekends, when it may not be needed. Benefits: • The twilight switch minimises the energy usage during a 24 hour day • The “holiday” mode of the time switch EG103E provides additional energy savings by switching off signage completely during closed periods.
Simple Energy Saving Solutions - Metering As the saying goes “if you do not measure it - you can not improve it”. Kilowatt hours meters measure the active energy used in an electric installation. This allows the separate measurement of energy consumption in different areas of a large facility, with the purpose of allocating energy usage to different cost centres. The initial readings can be used as a baseline for determining energy usage, and the subsequent readings can be useful in identifying energy saving or wastage. These values can also be important for calculating payback times. The range includes meters with pulsed output for remote indication or linking into an energy management system. Kwh meters can be used for local metering or monitoring of power consumption in individual machines. Part References Single phase direct measure EC050 EC051 EC110 EC111 EC112 EC120 EC121 Accuracy acc IEC1036 Class 1 (1%) 0.02 to 32A~ Class 2 (2%) 0.32 to 32A~ Class 2 (2%) I max 32A ~ direct 32A ~ direct C.T. 100 / 5A Network Single phase 230V ~ 50Hz Single phase 230V~ 50 / 60Hz Counter Total without reset Total without reset Total + partial with reset Single phase 230V~ 50 / 60Hz Total + partial with reset Width 1 mod 3 mod 3 mod Part References Three phase direct measure Three phase direct measure via CT EC310 EC311 EC320 EC321 Accuracy acc IEC1036 Class 2 (2%) Class 2 (2%) I max 80A ~ direct C.T. 50 at 1500 / 5A Network Three phase Tri / 500V 50 / 60Hz with or without N 3 x C.T. / 1 x C.T. 400V ~ Tri / Tri + N 400V ~ 2 phase Counter Total + partial with reset Total + partial with reset Width 7 mod 4 mod EC051 - Single Phase Kwh Meter EC320 - Three Phase Kwh Meter SR300 - Current Transformer
Page 1 and 2: Eco-ficient Solutions Make energy a
Page 3 and 4: Total 67% 33% Health 63% 11% 4% 12%
Page 5 and 6: Electromechanical Time switches (Di
Page 7 and 8: Astronomical Time switches Staircas
Page 9 and 10: A typical application example for e
Page 11: Light Detection ~ twilight switches
Page 15 and 16: Energy Saving - Klik Lighting Syste
Page 17 and 18: Case Study - Flexible Control For N
Page 19 and 20: Case Study - Gateshead Schools Klik

Eco-ficient Solutions - Hager

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