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Energy / Power Monitoring

Digital Multifunction Alpha 50A+

Alpha 50A+ is a compact multifunction instrument with tough screen LCD utility which measures important electrical parameters in 3 phase and single phase Network and replaces the multiple analog panel meters.

 

Models and Sizes

Alpha 50A+

 

Features

True RMS Measurement
Onsite Programmable
Low Back Depth
Phase Reversal Indication
Touch screen graphics LCD
RS485, Limit or Pulse Output, Analog Output


Digital Multifunction Alpha 70A+

Alpha 70A+ is a compact multifunction panel mount power quality monitor, which measures , calculates and display major electrical parameters of three phase power sytems.

 

Models and Sizes

Alpha 70A+

Features

Phasor representation of all 3 phases for system analysis
Energy class 05S as per standard IEC 62053-22
True representation of voltage and current waveforms
Real time clock (RTC)
Individual harmonics up to 56th harmonics
Time of use with configurable zones, seasons, tariff profiles which helps energy analysis.


Alpha 40A+ Multifunction Active, Reactive, and Apparent Energy Meter (Switchboard or Din Mount)

Alpha 40A+ is a compact multifunction instrument which is specially designed for Active, Reactive and Apparent Energy Measurement including per phase THD, Powers and other parameters as per different models.

 

Features

True RMS Measurement
Energy as per IEC 62053
Onsite Programmable
Low Back Depth
Error Diagnosis Mode
LCD Display with Back-lit
RS-485, Limit or Pulse Output


Digital Multifunction Alpha 20A+

Alpha 20A+ is a compact multifunction instrument which measures important electrical parameters in 3 phase 4 Wire and 3 phase 3 Wire Network & replaces the multiple analog panel meters.

 

 

Models and Sizes

Alpha 20A+

 

Features

MODBUS (RS485) Communications (optional)
Pulse/Limit Switch output (optional)
3 Line 4 Digits untra bright LED Display (up to 9999)
On site Programmable CT /PT Ratios
User Selectable CT secondary 1A / 5A
User Selectable PT secondary from 100 VLL to 500 VLL
Wide auxillary Power Supply which can accept any input
Programmable Energy format & Energy rollover count
Wide auxillary power supply which can accept any input between 60V – 300V AC/DC or 20-40 VAC or 20-60 VDC


Digital Multifunction Alpha 30A+

Alpha 30A+ is a compact multifunction instrument which measures important electrical parameters in 3 phase 4 Wire and 3 phase 3 Wire Network & replaces the multiple analog panel meters.

 

Models and Sizes

Alpha 30A+

 

Features

 

MODBUS (RS485) communication (optional)
3 Line 4 digits untra bright LED Display (up to 9999)
On site programmable CT/PT ratios
User selectable CT secondary 1A / 5A
Pulse/Limit Switch output (optional)
Measurement and display of RPM, Run Hours, On Hours, Number of interruptions


Digital Multifunction Alpha 40D+

Alpha 40D+ is a compact multifunction instrument which is specially designed for Active, Reactive and Apparent energy measurement including per hpase THD, Powers and other parameters as per different models.

 

Models and Sizes

Alpha 40D+

 

Features

True RMS measurement
Energy as per IEC 62053
Onsite Programmable
Low Back Depth
Error Diagnosis Mode
LCD Display with Back-lit
RS485, limit or pulse output


N100 3-Phase Power Network Analyzer

N100 3-Phase Power Network Analyzer

 

N100 – it is a successor of N10 meters – one of the most popular meters on the market. N100 has been enhanced with a new functions (ETHERNET and RECORDING), which adjusted its to energy monitoring requirements in modern industrial applications

 

Models and Sizes

N100

 

Features

Measurement of
power network parameters in 3 or 4-wire, balanced or unbalanced systems
harmonics up to 51st
THD.
Two-color LED display (red, green).
Four quadrant energy measurement.
Indications taking into consideration programmed ratio values.
Programmable number of pages and selection of displayed quantities on each of the 20 pages.
Backlit units of all measured quantities.
Configurable analog and alarm outputs.
Pulse input to count the consumption of active energy from external counter.
Digital RS-485 interface with MODBUS protocol.
Archiving data in the internal memory file system, memory 8 GB (option).
Ethernet interface 10/100 BASE-T (option)
protocol: MODBUS TCP/IP, HTTP, FTP,
services: www server, ftp server, DHCP client.
Battery support of RTC.
External dimensions: 144 x 144 x 77mm.


MDC-01 Maximum Demand Controller

MDC-01 Maximum Demand Controller
Non-domestic electrical power users often have to pay a maximum demand charge in addition to the usual charge for the number of units consumed. Maximum demand charges are usually based on the highest amount of power used during any specified period (usually 30 mins) during the metering month. The maximum demand charge often represents a large proportion of the total bill and may be based on one isolated episode of high power use. Considerable savings can be realised by monitoring power use and turning off or reducing non-essential loads during periods of high power use. The MDC-01 is a simple load shedding device suitable for small to medium size consumers wishing to reduce their maximum demand in an economical and simple manner. The unit is also suitable for reducing load for other purposes such as limiting cable and transformer loading.

 

MODELS AND SIZES:

MDC-01

 

FEATURES:

Isolated through optocoupler
Dry contact or NPN open collector
0.1 kWhr (kVAhr) pulses


ND10 Power Network Meter

ND10 Power Network Meter

 

Models and Sizes

ND10

 

Features

Meter supply from measurement circuit
Measurement of basic power quantities:: UL-L, UL-N, In, f, P, Q, S, PF, tφ ,cosφ,φ,Ep+, Ep-, EqL, EqC, THD
2 alarm outputs
Pulse output for active energy
Interface RS485 Modbus Slave (option)
LCD display 3.5”
Protection grade from the frontal side IP65


ND1 3 Phase Power Quality Analyzer

ND1  3 Phase Power Quality Analyzer

 

Models and Sizes

ND1 3

 

Features

 

Measurement and recording of over 300 electric energy quality parameters acc. to EN 50160 standard.
Operation in 3 or 4-wire, 3-phase, balanced or unbalanced
power networks.
Analysis of current and voltage harmonics up to the 51 st.
Configurable archives of actual values and event recording.
Data archiving on a CompactFlash card – memory up to 4 GB.
Web Server, FTP Server.
Interfaces: RS-485 (Modbus Slave, Modbus Master).
Ethernet 10 Base-T (Modbus TCP/IP Server) and USB.
Colour touch screen: LCD TFT 5.7”, 320 x 240 pixels.
Users friendly interface based on Windows®CE.
IP65 protection grade from the frontal side.
Recording of operator’s messages.
Synchronization of RTC clock with the NTP time server.


MPR Series Energy Meters

MPR Series Energy Meters

 

MODELS AND SIZES:

MPR-50
MPR-52S
MPR-60S
MPR-63

 

FEATURES:

 

Network Analyser with THD
1MB Memory
Alarm Contact


T-1KW1 Series kWh Meter

T-1KW1 Series

Hoyt has used the latest in DSP semiconductor techniques and SMD circuitry to produce an extremely compact electronic kWh meter which is intended to replace clumsy mechanical meters. To avoid using bulky terminals the current path passes through an inbuilt CT via a hole through the case. In addition to the integral 6 digit counter the meter can be supplied in a version which has an NPN open collector pulse output for use with data loggers or similar electronic recorders or controllers.

 

MODELS AND SIZES:

 

T-1KW1

 

FEATURES:

 

Inputs: 0 – 15 – 60A ac, 230V ac or 110V ac
Outputs: Integral 6 digit counter with 0.1 kWh units and (optionally) NPN open collector opto-coupler with 250msec pulses = 0.1 kWh 80V 50mA max.
Accuracy: Class 1 (IEC 61036)


LP-3KW4 – A three-phase kWh meter

LP-3KW4 – A three-phase kWh meter

Semiconductor technology is used to produce a very compact electronic kWh meter as a replacement for electro-mechanical check meters. The meter is a three element device with three CT inputs giving true readings on 4 wire unbalanced systems. In addition to the integral 7 digit counter there is a pulse output for use with data loggers or similar electronic recorders or controllers. The compact circuitry employed allows this meter to be housed in a standard 4M wide Din rail mounting case

MODELS AND SIZES:

LP-3KW4 – Three Phase kWh meter

 

FEATURES:

 

AC current and voltage, 3 phase 4 wire unbalanced load
Current: 3 x 5A (1A optional) CTs – specify CT ratio when ordering
Current burden: < 0.1VA
Voltage: 3 x 230V Ph-N (others on request)
Voltage burden: <0.25mA
Frequency: 50Hz or 60Hz – specify when ordering
Cutoff:
Dynamic range: >500:1


LP-1KW1 Series kWh Meters

LP-1KW1

The C&C Energy Meter is based on semiconductor technology and is intended to replace the conventional electromechanical (Ferraris type) commonly used power meter. Models are available for single phase, three phase three wire and three phase four wire systems. Inputs are from standard current transformers and normal mains voltages. Output is in the formof unit energy (watt-hour) pulses read by the built in counter or outputted to an external counting system.

 

MODELS AND SIZES:

LP-1KW1 Single Phase
LP-1KW3 – 3 Phase, 3 Wire Balanced Load
LP-1KW4 – 3 Phase, 4 Wire Balanced Load
LP-2KW3 – 3 Phase, 3 Wire Unbalanced Load
LP-2.5KW4 – 3 Phase, 4 Wire Unbalanced Load

 

FEATURES:

 

Inputs
: 0-1A, 0-5A, standard current transformer
: 110V, 230V, 400V ac
Outputs
: 1. Internal 7 digit accumulating counter
: 2. NPN open collector opto coupler (pulse or square wave)
: 3. N/Orelay contacts (dry contact)
: 4. Output types 1 and 2 together
: 5. Output types 1 and 3 together
Accuracy
: Class 1


HLD-06 Single Elec. Watt-Hour Meter

HLD-06 Single Elec. Watt-Hour Meter

The HLD06 single-phase meter is a socket type meter designed to meet the latest ANSI C 12.1 and ANSI 12.10 Standards. The meter measures active energy in single-phase two wire or three wire alternation current power grids. Connection is FM 1S and FM 2S. It is a reliable long service life meter. The average service life (MTTF) is 30 years and the maximum current to 200A. Both cyclometer-type and pointer registers are available. In addition, it can be equipped with an ARM module.

 

MODELS AND SIZES:

HLD-06 Single Elec. Watt-Hour Meter

 

FEATURES:

 

Meter Case
The socket type meter case complies iwth ANSI C 12.7 – 1993 and meets the protection requirements set by ANSI C 12.10 – 1993.
Driving Element
The driving element consists of a voltage element and a current element, both of which are fixed on the aluminum alloy frame. It has a load curve compensation mechanism and an inductive load adjustment mechanism.
Rotor
The worm is an undetachable part of the shaft so that the mesh between the worm and shaft is improved. Both ends of the shaft are embedded with a praphite bearing to ensure the long service life of the meter.
Upper Bearing
The upper bearing consists of a guide pina dn an aluminum sleeve.
Lower Bearing
The lover bearing consists of a guide pin and a brass sleeve, and is fixed into the meter frame by one screw.
Braking Element
Two magnet cubes are die-casted into the meter frame by aluminum alloy. It has a temperature compensation plate.
Register
Both pointer and cyclometer registers are available.


EM306A Digital Energy Meter

EM306A Digital Energy Meter

 

MODELS AND SIZES:

EM306A

 

FEATURES:

Active Energy
Pulse Output
Programmable CT Primary / Secondary


LP-KWM & LP-KWC Series kWH Meters

LP-KWM & LP-KWC Series

Semiconductor technology is used to produce very compact electronic kWh meters as a replacement for electro-mechanical check meters. The meter range has variations for single phase, two phase, three phase 3/4 wire balanced and 3/4 wire unbalanced systems. In addition to the LCD display of kWhrs there is a galvanically isolated pulse output for use with separate counters, data loggers or similar electronic recorders or controllers. The compact circuitry employed allows these meters to be housed in a standard 3M or 4M DIN rail mount case.

 

MODELS AND SIZES:

LP-KWC Series
LP-KWM Series

 

FEATURES:

 

Input: AC current and voltage, single phase, two phase, 3 phase 3 or 4 wire, balanced or unbalanced load
Current : 5A (1A optional) CTs, or CT10-3 miniature CT up to 80A
Current burden : < 0.1VA
Voltage : 3 x 230V Ph-N (others on request)
Voltage burden : <2VA
Frequency : 50Hz or 60Hz – specify when ordering
Cutoff :
Dynamic range : >500:1
Outputs : Integral LCD display with 0.1 or 1 kWh units, 7 or 8 digits
: NPN open collector optocoupler or dry contact relay both with 200msec pulses
: 0.1 kWh or 1 kWh units
MODBUS® option (LP-KWM) : Opto coupler isolated RS485 standard on twisted pair cable
Protocol : MODBUS® RTU slave with node addressing 1 to 246
Data register : 24 bits 9999999 max reading on register 40001 (long integer)
Data format : 9600 Baud, no parity
Accuracy : Class 1 to IEC 61036
Accurate range : 0 – 120%
Overload Current input : 2 x nominal continuous
: 20 x nominal for 3 seconds
Voltage inputs : 1.2 x nominal continuous
: 1.5 x nominal for 10 seconds
Isolation Galvanic isolation between inputs and output circuit
Current inputs : 4kV rms 50Hz for 1 minute, Impulse 5kV 1.2/50μsec waveform
Voltage inputs to output : 2kV rms 50Hz for 1 minute
Temperature Operating : 0°C to +23°C to +60°C
Storage : -25°C to +70°C long term
: -55°C to +85°C short term
EMC Approvals : AS/NZS 3548
: C-Tick Mark


DDS-28 Single-phase Watt-hour Meter

DDS-28 Single-phase Watt-hour Meter

DDS28 static single-phase watt-hour meter measures active energy in single-phase three wire alternating current power grids at rated frequency 60Hz and voltage 240V. The meter complies with the international standard IEC 61036 and the accuracy class is 1. Featuring high accuracy and reliability, it also prevents the illegal action of pilfering electricity. The reliability and service life of the meters have been greatly improved by adopting large-scale integration (LSI) and SMT as well as long-life key components of international brand. The meters have a solid structure that is suitable for household power consumption and long-life running. Provided with pulse output, the remote control detecting of consumption locale is available.

 

MODELS AND SIZES:

DDS-28

 

FEATURES:

Forward active energy measurement.
LCD display.
Pulse LED indicates the operation state.
Passive pulse output with optical coupling isolated.
Transformer connection


K4000 & KW4000 Series

K4000 & KW4000 Series

Three Phase Kilowatt Hour / kW Demand Meter
Series 4000 three phase kWh and kW Demand meters are processor based (driven by firmware) for metering electrical usage in commercial, industrial, military and / or institutional facilities. Using 25 PPM Mill Spec components these meters are +/- 0.2% accurate through a wide temperature range. All readings are stored in a RAM chip, without the use of batteries. All readings are direct read, without the use of multipliers. The maximum demand value is reset using a keyed switch. Revenue grade meters do not allow the reset of Kilowatt hours.All Series 4000 meters come with one digital pulsed output and Modbus RS485 communications as a standard offering. Connected to these meters are labeled +/- 0.5% – 1% accurate solid core, split core or bar type current transformers. Up to four sets of current transformers can be connected to these meters (consult NMI application engineer).

 

Models and Sizes

K4240 120 / 208 / 240
kWhK4480 277 / 480 / 480 kWh
KW4240 120 / 208 / 240 kWh / kW
KW4480 277 / 480 / 480 kWh / kW

 

Features:

Six Digit kWh LCD Display (no multipliers)
Voltage Per Phase
Amperage Per Phase
kW Per Phase
Remote CT Operated (up to 10,000 Amps)
kWh Pulse (Form A Relay)
RS 485 Modbus Communications (included)
Plug In Terminals for Field Testing
Rate LED Indicates Relay Operation
LCD Display Shows Correct / Incorrect Wiring