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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-3 (EE-20A-3)
Portable Three-Phase Current Load
Application and brief description
The Portable Three-Phase Current Source consists of one unit. Two versions are offered for sale:
– EE-120A-3 – Three-Phase Current Source up to 120A on each phase;
– EE-20A-3 – Three-Phase Current Source up to 20A on each phase.
The Current Source is able to generate three-phase currents, synchronized with the service voltage, with unprecedented stability and measurement accuracy. The amplitude and phase-shift of each current is individually adjustable. The values of voltage, current, power, power factor, phase shift, THD and frequency are indicated on the LCD display.
Advantages
- Two generation modes – Manual mode and Test Plan mode are at Operator’s disposal. The Test Plan mode is used for easy change of load parameters, using only one panel keypad button. 100 Test Plans can be predefined by the Operator, each one with 12 load values.
- 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, power and power factor meters.
- The phantom load 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, vector diagram and wave form display.
- The EE-120A-3 unit can be upgraded with new firmware, which allows the integrated energy standard (class 0.04) to be used for testing electricity meters, thus forming an independent Test System. Optionally a Voltage generator up to 500V could be ordered, it is controlled from EE-120A-3 via RS485 interface.
Technical data
General
| EE-120A-3 | EE-20A-3 | |
| Power Supply: | 85…265V AC, 47…63Hz |
85…265V AC, 47…63Hz |
| Power Consumption: | max 300VA | max 200VA |
| Dimensions WxDxH: | 465x355x175 mm | 465x355x175 mm |
| Weight: | 13 kg | 12 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 Current Load
| EE-120A-3 | EE-20A-3 | |
| Ranges (per phase): |
1 mA…12 A (max.1.5V) |
1 mA…20 A (max.2.0V) |
| 10 mA….120 A | (max.0.5V) | |
| Output Power (per phase): | 60VA max. | 40VA 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°) (VA is always 0.0°) |
0.0°…359.9° (step 0.1°) |
| 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, THD, PF, Frequency |
| Measuring Modes: | 1 Phase 2 Wire, 3 Phase 3 Wire Delta, 3 Phase 4 Wire Wye |