| Customization: | Available |
|---|---|
| Certification: | CE |
| Protection: | Shock Resistance |
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ALP series intelligent low-voltage line protectors are suitable for low-voltage systems with rated voltages up to AC 400V, rated currents up to AC 6300A, and rated frequencies of 50/60Hz. The product integrates protection, measurement, control, and bus communication. It also provides functions such as remote automatic control, on-site direct control, panel instructions, signal alarms, operation records, trip alarm records, and switch value records.
As a new intelligent integrated device for the protection, monitoring, and control of low-voltage feeder terminals, the product is suitable for coal mines, petrochemicals, smelting, electric power, ships, and civil buildings.
| Function | ALP200 | ALP220 | ALP320 | ALP220-PT |
| Application occasions | 0.4KV Feeder | 0.4KV Feeder | 0.4KV Feeder | 0.4KV PT |
| Switch value acquisition | 5 | 5 | 9 | 5 |
| Relay output | 4 | 4 | 5 | 4 |
| Measure | I | U, I, P, PF, F, KWh | U, MAXu, Uo, F, εμ | |
| Inverse time overcurrent protection | YES | YES | YES | |
| Low definite time overcurrent protection | YES | YES | YES | |
| High definite time overcurrent protection | YES | YES | YES | |
| Low definite zero sequence protection | YES | YES | YES | |
| High definite zero sequence protection | YES | YES | YES | |
| Inverse time zero sequence protection | YES | YES | YES | |
| Phase failure protection | YES | YES | YES | |
| Unbalance protection | YES | YES | YES | |
| Current demand protection | YES | YES | YES | |
| Linkage 1 protection | YES | YES | YES | YES |
| Linkage 2 protection | YES | YES | YES | YES |
| Linkage 3 protection | YES | YES | YES | YES |
| Undervoltage protection | YES | YES | ||
| Overvoltage protection | YES | YES | YES | |
| Residual current protection | Optional | Optional | Optional | |
| Low voltage one-stage protection | YES | |||
| Low voltage two-stage protection | YES | |||
| Low voltage three-stage protection | YES | |||
| Zero sequence overvoltage protection | YES | |||
| Voltage unbalance protection | YES | |||
| PT disconnection protection | YES | |||
| Trolley position protection | YES | |||
| Communication Modbus-RTU | YES | YES | YES | YES |
| One 4-20mA analog output | YES | YES | YES | YES |
| 8 fault records | YES | YES | YES | |
| 8 opening records | YES | YES | YES | |
| 8 closing records | YES | YES | YES | |
| 8 DI action records | YES | YES | YES | |
| Protection query | YES | YES | YES | YES |
| Protection setting | YES | YES | YES | YES |
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