Acrel ARB4 Arc Flash Protection Relay
Acrel ARB4 Arc Flash Protection Relay
General
Acrel ARB4 series arc protection device integrates multiple functions such as protection, measurement, monitoring, control, communication, fault recording, event recording, etc. It can monitor arc signals, protect current or voltage signals in real time, and achieve arc protection function for 0.4kV~35kV medium and low voltage distribution systems.
Typical Connection
Installation
Installation
Outline and Dimension
On-site Pictures
Acrel ARB4 Arc Flash Protection Relay
Models
| Model / Function |
ARB4-A1 |
ARB4-A2 |
ARB4-A3 |
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Hardware
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Arc sensor signal acquisition |
1 |
2 |
3 |
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Current signal aquisition |
1 set of 3-phase currents, total of 4 current channels |
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Voltage signal acquisition |
3 zero sequence voltages, a total of 3 voltage channels |
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Digital Input |
8 |
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Digital Output |
5 normally open relay outputs |
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485 interface |
1 |
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Function |
Arc protection |
Arc criterion |
√ |
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Arc&Current criterion |
√ | ||||
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Arc&Zero-sequence Voltage criterion |
√ |
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Arc monitoring and fault location |
√ |
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Real time self inspection of arc sensors and fiber optic links |
√ |
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failure protection |
√ |
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CT disconnection monitoring |
√ |
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non-electricity protection |
√ |
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Device abnormal alarm |
√ |
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Maintenance status lock |
√ |
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Fault recording |
√ |
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Protocol |
Modbus |
√ |
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IEC101 |
√ |
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IEC103 |
√ |
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IRIG-B |
√ |
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Electromagnetic compatibility performance
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Test item |
Requirement |
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1 |
Radiation emission limit test |
GB/T 14598.26 IEC 60255-26 IEC 61000-6-3 IEC 61000-6-4 |
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2 |
Conduction emission limit test |
GB/T 14598.26 IEC 60255-26 IEC 61000-6-3 IEC 61000-6-4 |
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3 |
Radio-frequency electromagnetic field radiation immunity |
Meet the requirements of IEC 60255-26, severity is 10V/m. |
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4 |
Electrostatic discharge immunity |
Meet the requirements of IEC 60255-26, severity is IV level. |
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5 |
Disturbance immunity of RF Field Induction conduction |
Meet the requirements of IEC 60255-26, severe grade disturbance level is 10V. |
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6 |
Immunity of electric fast transient pulse group |
Meet the requirements of IEC 60255-26, severity is IV level. |
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7 |
Slow-damped oscillation wave immunity |
Meet the requirements of IEC 60255-26, the common mode is 2.5 and the difference module is 1. |
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8 |
Surge immunity |
Meet the requirements of IEC 60255-26, severity is IV level. |
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9 |
Effect test of AC and DC voltage sag interruption |
GB/T 14598.26 IEC 60255-26 |
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10 |
Power frequency magnetic field immunity |
Meet the requirements of IEC 60255-26, severity is V level. |
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