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Demand Monitor & Controller
Elecon Measurements offers variety of demand controller to suit different applications.
Demand control is a method of controlling the energy cost by limiting the energy consumption wihtin the demand set by regulatory. Demand cost is calculated in different ways and using different parameters depends on the region/ country.
There are two types of demand measurement
- Sliding Window
- Fixed (Block) Window
Sliding Window
 This window slides every 15 seconds (update time), so it automatically synchronizes with EB meter. But it will not return to zero at the end of the demand period. For the fluctuating load this is the better way of measurement.
Fixed (Block) Window
 This window slides every demand period. It has to be synchronized to EB meter manually. It will return to zero at the end of demand period. This can be used for the fairly stable load.
Normally there are two types of demand control used
- Forecast Demand Control
- Step Demand Control
Forecast Demand Control
Forecast demand control is more suitable for sliding window technique. This control predicts the rising demand before the set time (Forecast Interval) and gives the alarm/annunciation for proactive action. The user can then shed some non-critical loads.
Step Demand Control
Step demand control is suitable for sliding and fixed window. 4 loads or 4 set of loads can be connected to the relays for tripping. Each step tripping level can be programmed independently (5% to 100% of Full scale). In the step demand control the control is based on the rising demand only.
Intelligent
- Built-in Voltage & Current Phase Analyzer Measures 4 Quadrant Power & 2Quadrant Energy (4 Quadrant Energy for R/D Option)
- Auto Scrolling
- Communication with PCs, PLC’s, DCS thru Optional RS485/RS232 Serial Interfaces
- Transducers Options RS485/RS232 Serial Interface
- Demand Control Option - Sliding or Fixed Window
- Programmable Demand Period and Block (Forecast) Time
- Field Programmable Watts Demand (or) VA Demand (or) Amps Demand
- Field Programmable Forecast based Demand or Independent Step Demand Control
- Energy TOD (6 slots) Options
- Demand TOD (4 slots) Options
Smart
- Accuracy Class 1.0 IEC 61036 / CBIP 88 (0.5, 0.2 Option)
- True RMS Measurement
- Simultaneous Sampling of Volts & Amps
- Best Parameters Grouping / Bright Displays
- Simultaneous Display of 4 Parameters
- User Programmable Password Protection
- Auto-scaling of kilo, Mega, Giga and Decimal Point
- Neutral Current Display, RPM Measurements
- Low PT, CT Burden
- Clearance and Creepage distance meets UL 508 Safety Standard
- Finger Touch Proof Terminals for Voltage and Current Connections
Rugged & Safety Construction
- Emission: CISPR 22
- Fast Transient: 3kV Min
IEC 61000 - 4 - 4
LEVEL 3 ESD
IEC 61000 - 4 - 2
- Impulse voltage : 6kV, IEC60060, 1.2/50
- Isolation Voltage: 4kV, 50Hz, 1 Min
Compact
- 96 x 96mm Bezel
- 45mm behind bezel
- Sealed Dust-proof rugged construction
- Quick and easy installation using self locking side locks
- Light Weight - Approx 300gms unpacked
- Polycarbonate Casing
Universal
- Field Programmable Star (Wye) or Delta or Single Phase Configuration
- Programmable PT, CT ratio up to 2,000 MVA
- Programmable CT Secondary
- Auxiliary supply 80-300V AC/DC
- Wider input voltage range 80 - 550VLL
TM 5410 Demand Controller - Single Relay and Two Relays
- Sliding Window
- Programmable Demand Period (5min to 30min. in steps of 1min)
- Programmable Forecast Time (5min to 15min in steps of 1min)
- Single Potential free Contact (Relay Output)
- Field Programmable Watts Demand (or) VA Demand (or) Amps Demand
- View Present Demand, Forecast Demand, Maximum Demand and Additional load on single page
TM 7400 / PH 7700 Demand Monitor & Controller
 
- RTC synchronization with EB meters
- Demand Monitor Option - Sliding or Fixed Window
- Programmable Demand Period (5min to 30min in steps of 1min)
- Programmable Forecast Time (5min to 15min in steps of 1min)
- Field Programmable Watts Demand (or) VA Demand (or) Amps Demand
- Field Programmable Forecast Demand or Independent Step Demand Control
- View Present Demand, Forecast Demand, Maximum Demand and Additional load on single page
- 4 User Defined Potential free Contact Relay Output for Demand Controller
TM 7400 demand controller is designed to control four loads to achieve the desired savings. The instrument measure the demand based on sliding or fixed (block) window. The demand calculations can be chosen based on Watts, VA or Amps (Average) parameters for the given time period (Demand Period).
Forecast Demand Control
In TM 7400, 4 relays are used to control the demand
- Relay 2 will be activated if Forecast Demand > High Limit 1
- Relay 3 will be activated if Rising Demand > High Limit 2
- Relay 4 will be activated if Rising Demand > High Limit 1 as a final trip
- Relay 1 can reconnect, once the rising demand comes down to the safe limit (Low Limit)
Step Demand Control
In TM 7400, 4 relays are used to control the demand
- Relay 1 will be activated if Rising demand > Step1 Level
- Relay 2 will be activated if Rising demand > Step2 Level
- Relay 3 will be activated if Rising demand > Step3 Level
- Relay 4 will be activated if Rising demand > Step4 Level
TM 7400 / PH 7700 Demand TOD / Energy TOD Monitor & Controller
- Features of TM 7400 Demand Monitor
- User Defined Demand TOD (4 slots)
- User Defined Energy TOD (6 slots)
- Automatic switching of pages based on Maximum Demand slot
- View Present Demand, Forecast Demand, Maximum Demand and Additional load on single page
- 4 User defined Potential free Contact Relay Output for Demand TOD Controllers
Downloads
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