Three phase electrical energy analyser & controller. 3-4 wire; programmable for measurements in low and medium voltage.
48 readings, 2 optomos outputs 250 Vac-dc 100 mA, 2 auxiliary digital inputs. RS 485 data port, modbus protocol, THD (Total Harmonic Distortion) function on voltage and current. Modular design 9 module DIN case.
Measurements and display
U
RMS Voltage*
I
RMS Current*
P
Active Power *
P.F.
Power Factor * (Cosø)
S
Apparent Power *
Q
Reactive Power *
Pm
Average Active Power
Sm
Average Apparent Power
PMD
Maximum Demand on Active Power (peak)
SMD
Maximum Demand on Apparent Power (peak)
EA
Active Energy Consumption
ER
Reactive Energy Consumption
THD
Total harmonic distortion on voltage and current **
C1
Auxiliary Counter (input 1)
C2
Auxiliary Counter (input 2)
° C
Temperature
T
Calendar clock
F
Frequency
* Phase and three-phase values ** Phase values All readings displayed on a high-luminosity, fluorescent, 9-digit, Direct reading selection via keyboard with indication of parameters selected. Energy and auxiliary counters incremented by floatingpoint mathematics. Retention of counter and maximum demand data in batteryfree EEPROM memory chip. Two 4-digit auxiliary counters for totalling external pulse signals via the auxiliary input channels (i.e. gas, water, etc.). Automatic exponent (m, K, M, G).
Total harmonic distortion measurement (THD)
This instrument assesses the quality of the electric energy by analysing the total harmonic distortion of both the 3 voltages and 3 currents. These functions are extremely useful, owing to the constant increase in the number of the distorting loads present at industrial plants, for checking the quality of the energy supplied by the electricity distribution authority.
Easy to use and versatile
Keyboard programming is extremely easy and intuitive. The following settings may be programmed: ● Type of connection (star and delta) ● Low voltage or medium voltage mode ● CT and VT ratio (free setting) ● Integration time (1 to 99 min.) ● Calendar clock ● Alarm threshold for Active Power ● RS485 speed, parity and data format characteristics More sophisticated functions may also be programmed via connection to a PC.
Communication
KILO T is supplied with a RS485 output for remote networking to a computer. The unit is equipped with MODBUS transmission protocol developed by AEG-MODICON.
This protocol is commonly used by many PLC manufacturers and is compatible with existing SCADA programs for industrial management and control applications. Data processed by KILO T are read as numerical registers
comprising a mantissa and exponent. A standard twisted pairprovides reliable communication for up to 32 instruments over a distance of 1000 m. without amplification. The connectionof additional line amplifiers allows further blocks of 128 units to be connected up to a maximum of 247 instruments and/or line stretches of one Km.
Alarms and output relay
KILO T offers alarm and control functions for Average Active Power (demand) via two alarms relays with output contacts rated at 8A, 250 Vac ensuring an efficient alarm signalling, load control and load shedding. The two alarm thresholds are keyboard-programmable. The two alarm relays may also be set to other parameters by computer (see ADVANCED FUNCTIONS).
Advanced functions
Technical specifications
Display: FIP high-intensity green display (KILO T), highintensity, 9-digit, alphanumeric display and 3 numerical red digit LED display, min. operation life: 100,000 hrs. Inputs: Voltage: 500V, 20 to 800 Hz. Current: 5 A, 20 to 800 Hz. Auxiliary inputs: 2 opto-isolated digital inputs with internal power supply (12 to 18 Vdc, 1.3 kOhm), maximum frequency 100 Hz (KILO T) 24 ÷ 230 Vac ± 10% 50/60 Hz - 20 ÷ 370 Vdc - 20 ÷ 370 Vdc (KILO2 T) Output: RS485 data output with galvanic isolation Relay outputs: 2 voltage-free changeover contacts rated at 8A, 250 Vac (resistive load) Overload: Voltage input: max. 800 Vrms; Surge voltage: 900 Vrms (for 1 sec.) Current input: max. 20 Arms; Surge current: 100 Arms (for 1 sec.) Power supply: 200-240 Volt ± 10%, 50/60 Hz (100-120 Vac available on request) Accuracy: 0.25% V and I; 0.5% for power as per IEC EN 60688 standards; Class 1 for energy as per CEI EN 61036 standards Crest factor: 1.7 (on both input voltage and current) Consumption: 5VA Temperature range: -10 to +60° C Relative humidity: 90% max., non-condensing Standards: IEC1010, VDE 411, Class II with external cabinet. Electromagnetic compatibility: Immunity: EN 50082-1; 1992 EN 50082-2; 1994; emissions: EN 50081-1 1992 Autorange: 2 voltage scales, 3 current scales Offset: automatic amplifier offset correction Energy counter resolution: 0.0001 kWh to 99,999,999.9999 kWh (on RS485). Ambient temperature measurement: by internal sensor Mounting: DIN rail Weight: 0.7 Kg. Size: 157.5 x 90 x 58 mm. (9 DIN modules)
Size ● Kilo T
Applications ● Measurement and analysis of industrial electrical parameters and electrical energy ● Metering and monitoring of active and reactive energy consumption ● Maximum Demand measurement, monitoring and control ● Intelligent peripheral for monitoring and data acquisition networks ● Industrial cost-accounting and production management systems ● Alarm signalling ● Co-generation plant metering and control ● Multi-tariff energy metering
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