The CRA650 series relay protection tester utilizes advanced power supply and digital switch technology, featuring miniature high-precision current and voltage amplifiers. It offers strong current output, high accuracy, and is compact and lightweight. Powered by a large-capacity lithium battery, it has a 9-inch high-definition touchscreen for easy operation. With extensive testing functions, it is ideal for maintenance and debugging in substations, smart substations, and power plants.
The CRA650 series relay protection tester applies advanced power supply and digital switch technology, and adopts miniature high-precision current and voltage amplifier components. It features strong current output capability, high output accuracy, small size and light weight. The instrument is built with a large-capacity lithium battery pack and adopts a 9-inch high-definition touchscreen LCD. It is convenient to carry and operate, and has rich test functions. It is suitable for the maintenance and debugging for users such as substations, smart substations, and power plants.
| Voltage generators | |
| Number of outputs | 4×130V |
| Ranges | AC(L-N)：4×0-130V； |
| DC (L-N)：4 ×0-±180V | |
| Power | 4 ×48VA at 130V |
| Accuracy | error < 0.03 % rd. + 0.01 % rg. typ., at 0 … 130 V； |
| error < 0.08 % rd. + 0.02 % rg. guar., at 0 … 130 V | |
| Resolution | 10mV for 130Vac |
| Output response time | <100μs |
| Distortion (THD%) | <0.03 % typ., <0.1% guar. |
| at nominal values, 50/60 Hz and 20 kHz measurement bandwidth | |
| Current generators | |
| Number of outputs | 3×30A |
| Ranges | AC(L-N)：3×0-30A |
| DC (L-N)：3×0-±10A | |
| Power | 3 × 110VA at 30A |
| Accuracy | 3×30A： |
| error < 0.03 % rd. + 0.02% rg. typ., at 0 … 30 A； | |
| error < 0.08 % rd. + 0.02 % rg. guar., at 0 … 30 A； | |
| Resolution | 0.1mA |
| Distortion (THD%) | < 0.1 % typ., < 0.3 % guar. |
| at nominal values, 50/60 Hz and 20 kHz measurement bandwidth | |
| Output response time | <100μs。 |
| Optical fiber Ethernet interface | 4pairs，One pair is suitable for gigabit networks |
| interface type | LC interface |
| Wavelength | 100 Mbps: 1310nm, Gigabit: 850nm |
| Communication protocol | IEC61850-9-2，GOOSE |
| Optical fiber serial interface | Four, two for two |
| interface type | ST interface |
| Communication protocol | IEC60044-8，IRIG-B，PPS |
| Frequency-Amplitude chacteristic | ≤±0.05%~±0.5%(10Hz~1kHz) |
| Frequency | DC-10.0kHz； |
| Frequency accuracy | <1mHz(45Hz~65Hz)、 |
| <5mHz(10Hz~45Hz、65 Hz~450Hz)、 | |
| <10mHz(450 Hz~1000Hz)； | |
| Resolution | 0.001Hz |
| Phase | |
| Phase angle range | 0° ~ 360° |
| Phase angel accuracy | ±0.05°typ.(±0.1°guar.),at 50/60Hz |
| Phase angle resolution | 0.01° |
| Binary inputs | 4pairs，0-400V DC threshold or potential free |
| Binary outputs | 4pairs，In which a pair of quick-opening contacts |
| Dimensions | 278mm×191mm×88mm(W×H×D) |
| Weight： | <4.5kg |
Main features
