The company's focus is in the field of test equipment designed for the purposes of testing electricity meters, current transformers and electrical network analysis.
EE-120A-3S + EE-500V-3
Three-Phase Current Load with Energy Standard Class 0.04 + Three-Phase Voltage Generator
Application and brief description
The EE Test System is used for testing electricity meters on-site or in a laboratory. It consists of two units:
– Unit 1 – EE-120A-3S – Three-Phase Current Generator up to 120A and Energy Standard class 0.04;
– Unit 2 – EE-500V-3 – Three-Phase Voltage Generator up to 500V controlled from Unit 1 via RS485.
The Phantom Load is able to generate three-phase voltages and currents with unprecedented stability and measurement accuracy. The amplitude and phase-shift of each current and voltage is individually adjustable. All types of electricity meters – mechanical or electronic, for active, reactive or apparent energy, single-phase or three-phase – can be tested with the Energy Standard. The following meter tests can be carried out with the EE Test System: Error Test, Register Test, No Load Test and Starting Current Test. Full analysis of the customer load can also be performed, if current clamps have been ordered. All test results ( maximum 3 Test Plans, 5 Manual Measurements and Customer Load Analysis) can be saved in one file. 100 saved files can be viewed on the LCD display or transferred to a PC via USB port.
Advantages
- Flexible structure – the EE-120A-3S unit can be used alone for on-site tests and measurements, generating current synchronized with the available service voltage.
- Two test modes – Manual mode and Test Plan mode. The Test Plan mode performs automatically meter error tests. 100 Test Plans can be predefined by the Operator, each one with 12 test points.
- The EE Test System can be used as a Phantom Load only. The unique stability and measurement accuracy make the phantom load suitable for testing not only electricity meters, but also other measuring devices in a substation like amp-meters, volt-meters, power and power factor meters.
- The EE Test System can be controlled from a PC, using EE Software, operating under Windows XP and later versions. In this case, additional functions are available, such as generation of harmonics to the 31st.
EE Software – Features, MySQL Database
- Store and Analyze the Complete Site Testing
- Create and Print Various Professional Reports
- Add Your Notes and Additional Information
- Search by Meter ID, Location, Date
- Update Your Software, Free of Charge
- Export of Test Results via Internet to other Computers
Functions and screens
PC Screens Control from a PC via USB and LCD Panel Screens Control by the panel keys
Analysis – table with display of V, I, φ, P, Q, S, cosφ, THD and f information
Harmonic analysis of the voltage and current wave forms (up to 39th harmonic)
Wave form display of voltage and current
Manual test of electricity meters – Wh, VARh, VAh; Error Measurement, Register Test, Starting Current Test, No Load Test, Maximum Demand Test
Automatic meter error test with predefined Test Plans
Technical data
General
| EE-120A-3S (Current Source) |
EE-500V-3 (Voltage Source) |
|
| Power Supply: | 85…265V AC, 47…63Hz |
85…265V AC, 47…63Hz |
| Power Consumption: | max 300VA | max 150VA |
| Dimensions WxDxH: | 465x355x175 mm | 400x330x160 mm |
| Weight: | 13.8 kg | 10 kg |
| Housing: | Rugged plastic case | Rugged plastic case |
| Operation temperature range: | -10°C…+50°C | -10°C…+50°C |
| Storage temperature range: | -20°C…+60°C | -20°C…+60°C |
| Relative humidity: | <95 % non condensing | <95 % non condensing |
| Safety Tests: | IEC61010-1-2002 | IEC61010-1-2002 |
| Degree of protection: | IP-20 (opened), IP-65 (closed) |
IP-20 (opened), IP-65 (closed) |
| Overvoltage Category: | 300V, Cat III (600V Cat II) |
300V, Cat III (600V Cat II) |
| Declaration of Conformity: | CE Conform | CE Conform |
| Three-Phase Load | EE-120A-3 (Current Source) |
EE-500V-3 (Voltage Source) |
| Ranges (per phase): | 1 mA…12 A (max.3.5V) |
500V (0.06A); 300V (0.12A) |
| 10 mA….120 A (max.0.6V) |
150V (0.24A); 75V (0.48A) |
|
| Output Power (per phase): | 70 VA max. | 36 VA max. |
| Accuracy (100%…0.3% of range): | <±0.04 % (of measured value) |
<±0.04 % (of measured value) |
| Accuracy (± 0.3% of range): | <±0.04 % (of max. value) |
<±0.04 % (of max. value) |
| Stability: | <0.03 % | <0.03 % |
| Harmonic Distortion: | <0.8 % | <0.8 % |
| Phase Shift (for each phase): | 0.0°…359.9° (step 0.1°) |
0.0°…359.9° (step 0.1°) (VA is always 0.0°) |
| Frequency (for all phases): | 45…100Hz (step 0.1Hz) |
45…100Hz (step 0.1Hz) |
| Bandwidth: | 30…2000Hz | 30…2000Hz |
Three-Phase Standard
| Measuring Quantities: | Volts, Amps, Phase Shift, P, Q, S, Wh, VARh, VAh, PF, Frequency |
| Measuring Modes: | 1Ph 2W, 1Ph 3W, 3Ph 3W Delta, 3Ph 3W Net, 3Ph 4W Delta, 3Ph 4W Wye |
| Pulse Inputs: | Scanning Head, Manual Button, High Frequency BNC Input (up to 200kHZ) |
| BNC Pulse output: | 100 000 imp/kWh (Isolated, TTL level or open collector up to 50V) |
| Flash Memory: | 100 files are saved, reviewed on the LCD display or can be sent to a PC |
Standard Measurement Accuracy
| Quantity | Error | Range (12A) | Range (120A) |
| Voltage | ≤ ±0.04 % | 30…500V AC | 30…500V AC |
| ≤ ±0.04 % ** | 5…29V AC | 5…29V AC | |
| Current (direct) | ≤ ±0.04 % | 50mA…12A | 250mA…120A |
| ≤ ±0.04 % ** | 1mA…49mA | 10mA…249mA | |
| Current (with current clamps) | ≤ ±0.2 % | — | 100mA…120A |
| Wh / VAh (direct) | ≤ ±0.04 % | 50mA…12A | 250mA…120A |
| VArh (direct) | ≤ ±0.06 % * | 50mA…12A | 250mA…120A |
| Wh (with current clamps) | ≤ ±0.2 % * | — | 100mA…120A |
| Phase shift | 0.01° | 0.00°…359.99° | 0.00°…359.99° |
| Power Factor | 0.002 | -1.000…+1.000 | -1.000…+1.000 |
| Frequency | 0.01Hz | 40Hz…100Hz | 40Hz…100Hz |
| Temperature coefficient | ≤ 30ppm/°K | 0…40°C | 0…40°C |
* Error related to apparent power (to be divided by the power factor);
** Error related to the maximum value of the range