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Overview
The PRE 431S pro Hand-held Relay Test System weighs just 3.2kg and battery inside.The tester also is the engineer’s ultimate toolbox that addresses the increasing need for three-phase testing capability in electrical distribution substations, renewable power generation stations and industrial applications.
The intuitive user interface is presented on the LCD touch screen. It has three current and four voltage sources and a versatility of measurement possibilities.
Parameters
| Voltage generators | Current generators | ||||
| Output range | 4-phase AC(L-N) | 4×0~125V | Output range | 3-phase AC(L‐N) | 3×0~12.5A |
| 2-phase AC(L-L) | 2×0~250V | 1-channel DC(L-N) | 1×0~±6A | ||
| 1-channel DC(L-N) | 1×0~±125V | 4-phase AC | 4×30VA | ||
| 1-channel DC(L-L) | 1×0~250V | 1-channel DC | 1×30VA | ||
| Power | 4-phase AC | 4×30VA | Power | <2mA,at 0~0.5A | |
| 1-channel DC | 1×30VA | ±0.2%,at 0.5~12.5A | |||
| Inaccuracy AC | <10mV, at 0~2V | Inaccuracy AC | <5mA,at 0~1.0A | ||
| ±0.2%, at 2~125V | ±0.2%,at 1~6.0A | ||||
| Inaccuracy DC | <10mV, at 0~5V | Inaccuracy DC | 0~3A | Continuous | |
| ±0.2%, at 5~125V | 3~10A | 60s | |||
| Output time | Continuous | Output time | 10~12.5A | 30s | |
| Resolution | 10mV | Resolution | 10mA | ||
| Binary inputs | General | ||||
| Number | 2 | Frequency | Range | 10~1000Hz | |
| Modes | Potential-sensing(o~250VDC) or potential-free (automatic recognition) |
Resolution | 0.001Hz | ||
| Max measuring time | Infinite | Phase | Angle range | -360°~360° | |
| Binary outputs | Accuracy | <0.2°(at 50/60Hz) | |||
| Number | 2 | Resolution | 0.1° | ||
| Type | Quick output contacts | Time measurement | Range | 0.1ms~3600s | |
| Update rate | 100µs | Resolution | 0.1ms | ||
| Breaking capacity | Vmax: 250VDC / Imax: 0.3A | Others | |||
| Power supply | Environmental conditions | Operating temperature: -10℃~50℃ | |||
| Input charge voltage | 100~240VAC | Humidity: ≤90% | |||
| Nominal frequency | 50 / 60Hz | PC connection | Ethernet, 10M / 100M | ||
| Permissible frequency | 45~65Hz | Ground socket (earth) | 4mm banana socket | ||
| Charging voltage | 16.8V | Net size | 270×190×60mm | ||
| Battery | 12.8Ah | Net weight | 3.2kg | ||
Features
Application
1.Commissioning and maintenance of distributed and generator power Substation
2.Protection relays
3.Electromechanical relays
4.Static relays
5.Numerical relays
6.Self-powered relays
Parameters
| Voltage generators | Current generators | ||||
| Output range | 4-phase AC(L-N) | 4×0~125V | Output range | 3-phase AC(L‐N) | 3×0~12.5A |
| 2-phase AC(L-L) | 2×0~250V | 1-channel DC(L-N) | 1×0~±6A | ||
| 1-channel DC(L-N) | 1×0~±125V | 4-phase AC | 4×30VA | ||
| 1-channel DC(L-L) | 1×0~250V | 1-channel DC | 1×30VA | ||
| Power | 4-phase AC | 4×30VA | Power | <2mA,at 0~0.5A | |
| 1-channel DC | 1×30VA | ±0.2%,at 0.5~12.5A | |||
| Inaccuracy AC | <10mV, at 0~2V | Inaccuracy AC | <5mA,at 0~1.0A | ||
| ±0.2%, at 2~125V | ±0.2%,at 1~6.0A | ||||
| Inaccuracy DC | <10mV, at 0~5V | Inaccuracy DC | 0~3A | Continuous | |
| ±0.2%, at 5~125V | 3~10A | 60s | |||
| Output time | Continuous | Output time | 10~12.5A | 30s | |
| Resolution | 10mV | Resolution | 10mA | ||
| Binary inputs | General | ||||
| Number | 2 | Frequency | Range | 10~1000Hz | |
| Modes | Potential-sensing(o~250VDC) or potential-free (automatic recognition) |
Resolution | 0.001Hz | ||
| Max measuring time | Infinite | Phase | Angle range | -360°~360° | |
| Binary outputs | Accuracy | <0.2°(at 50/60Hz) | |||
| Number | 2 | Resolution | 0.1° | ||
| Type | Quick output contacts | Time measurement | Range | 0.1ms~3600s | |
| Update rate | 100µs | Resolution | 0.1ms | ||
| Breaking capacity | Vmax: 250VDC / Imax: 0.3A | Others | |||
| Power supply | Environmental conditions | Operating temperature: -10℃~50℃ | |||
| Input charge voltage | 100~240VAC | Humidity: ≤90% | |||
| Nominal frequency | 50 / 60Hz | PC connection | Ethernet, 10M / 100M | ||
| Permissible frequency | 45~65Hz | Ground socket (earth) | 4mm banana socket | ||
| Charging voltage | 16.8V | Net size | 270×190×60mm | ||
| Battery | 12.8Ah | Net weight | 3.2kg | ||
Features
Application
1.Commissioning and maintenance of distributed and generator power Substation
2.Protection relays
3.Electromechanical relays
4.Static relays
5.Numerical relays
6.Self-powered relays
