"Meter+ CT" Test System (new)
EE-15A-3 Three Phase, up to 15 A Current Source and Energy Standard Class 0.05 in One Case
EE-300 V Three Phase Voltage Generator
EH-11 Optical Pickup (Scanning Head)
EE-1500 A High Current Source, for up to 1500 A
EE-COM Standard Current Transformer, up to 2000 A, Electronically Compensated
EE-Z Z-Burden for Loading the Secondary of the Current Transformer Under Test
A test system with a unique feature – it measures the error of the whole measuring circuit “electricity meter – current transformer” by injecting high current in the primary of the circuit transformer and applying three voltages, synchronized with the current to the meter. The current transformer can be up to 50 m (150 ft) away from the meter. Also, the error of the meter alone and the error of the CT can be measured according to IEEE standards. Each module of the system is lighter than 22 kg (25 lb).
General Features
Test of all types electricity meters
- accuracy class of the system ± 0.05% maximum error
- error measurement, register test, starting current and no-load test
- active, reactive and apparent energy measurement
- single phase or three phase measurement
Current transformer test
- accuracy class of the system ± 0.05% maximum error for turn ratio, ±1’ for phase shift
- indication of current, turn ratio, ratio error and phase shift
- indication of power and Z-burden on secondary of the CT
- demagnetization of CT
Complete measurement circuit “electricity meter + current transformer” test
- accuracy class of the system ± 0.05% maximum error
- three voltages to the meter and up to 1500 A current at the primary of the current transformer are generated
- magnitudes of voltages and current, as well as the phase shift angle, can be varied
- the error of the system is calculated on the base of the outgoing pulses from the meter
The tests can be performed automatically following preliminarily allowed and entered into the instrument “Test plans”
All measurement results can be committed to memory and transferred to a computer
Computer programme with data base for memorizing and printing out of measurement records.
EE-15 A-3 Three Phase Current Generator and Three Phase Energy Standard Class 0.05
- generates three currents with adjustable magnitude (from 1 mA to 15 A) and phase shift (from 0o to 359.9°)
- controls the voltage module and the high current module
- incorporated three phase standard measures voltage, current, phase shift, power and energy
- weight 17 kg
- graphic display and keyboard
EE – 300 V – 3 Three Phase Voltage Generator
- generates voltages from 10 V to 300 V
- controlled via RS232 from the current source
- weight 12 kg
EE 1500 A High Current Source up to 1500 A
- controlled from the EE-15A-3 module
- supplied current from 10 A to 1500 A
- maximum power 1.5 kVA
- increment step 1 A
- phase shift with respect to the voltage 0o to 359.9o by 0.1o steps
- weight 22 kg
EE – COM Electronically Compensated Standard Current Transformer for up to 2000 A Primary Current With 4 Subranges
- primary current ranges 2000 A, 500 A, 200 A, 100 A
- secondary current 5 A / 1 A
- error ≤ ± 0.02% (in the interval 5% to 120% of In)
- phase angle error δ ≤ ±1’
- weight 15 kg
EE – Z Z- BURDEN Current Transformer Secondary Winding Load Burden
- secondary current Isec 5 A / 1 A, loading increment cos β = 1 1 – 1.5 – 2 – 2.5 – 3 .75 VA
- cos β = 0.8 5–7.5–10–15–20–25-30-45-60 VA
- presetting accuracy ≤ ± 3%
- manual increment presetting
- weight 15 kg
EH 11 Optical Pickup
- picks up pulses from electromechanical and electronic meters
- LED pulse indicator
- mechanical support and positioning fixture
- potentiometer for adjusting the sensitivity