Surge Protection Device
Surge Protection Device mainly used for low-voltage power supply systems of power generation and power supply enterprises and power-consuming units, installed in low-voltage incoming switchgear power switchgear, power distribution switchgear,rectifier switchgear, distribution boxes, to protect electrical equipment.
Avoid the damage caused by the intrusion of the operating overvoltage caused by the lightning strike, which can limit the atmospheric overvoltage, the breaking overvoltage caused by various switches, and various operating overvoltages, and can reliably limit the phase-to-phase and relative overvoltages. effect.
Feature
Select high-quality varistor, reliable quality and stable performance
Modular design, which can be plugged and unplugged under power, convenient for testing or replacement
Optional remote alarm function for remote monitoring
Adopt temperature control circuit breaker technology, double automatic protection circuit for overcurrent and overvoltage
There is work, fault display, deterioration status at a glance
Large flow capacity and low residual pressure
35mm guide rail design, easy to install
Model naming convention
Paraments
Lightning protection area division | Power supply system grounding system | Power Category | SPD category | SPD model | Lightning impulse current | Nominal discharge current | Maximum discharge current | Voltage protection level | protected mode | LN wire (copper wire) z16mm2 | PE wire diameter (copper wire) 225mm2 |
LZPO-LPZ1 | TN-S、TT | Three phase | Level 1 test | BKPD-A50/4 | 50KA | —— | —— | 2.0kV | 4P | ≥16mm2 | 225mm2 |
TN-C、T | Three phase | Level 1 test | BKPD-A50/3 | 50KA | —— | —— | 2.0kV | 3P | ≥16mm2 | 225mm2 | |
TN-S | Three phase | Level 2 test | BKPD-B150/4-420 | —— | 60KA | 150KA | 2.5kV | 4P | ≥16mm2 | 225mm2 | |
TT | Three phase | Level 2 test | BKPD-B150/3+1-420 | —— | 60KA | 150KA | 2.5kV | 3P+N | ≥16mm2 | 225mm2 | |
IT | Three phase | Level 2 test | BKPD-B150/3-420 | —— | 60KA | 150KA | 2.5kV | 3P | ≥16mm2 | 225mm2 | |
IT | Three phase | Level 2 test | BKPD-B150/3-690 | —— | G0KA | 150KA | 2.5kV | 3P | ≥16mm2 | 216mm2 | |
LZP1-LPZ2 | TN-S | Three phase | Level 2 test | BKPD-B80/4-400 | —— | 40KA | 80KA | 2.2kV | 4P | ≥16mm2 | 216mm2 |
TT | Three phase | Level 2 test | BKPD-B80/3+1-400 | —— | 40KA | 80KA | 2.2kV | 3P+N | ≥16mm2 | ||
IT | Three phase | Level 2 test | BKPD-B80/3-400 | —— | 40KA | 80KA | 2.2kV | 3P | ≥16mm2 | 216mm2 | |
IT | Three phase | Level 2 test | BKPD-B80/3-690 | —— | 40KA | 80KA | 2.2kV | 3P | ≥16mm2 | 216mm2 | |
LZP2-LPZ3 | TN-S | Three phase | Level 2 test | BKPD-C40/4-385 | —— | 20KA | 40KA | 1. .6kV | 4P | ≥16mm2 | 210mm2 |
TT | Three phase | Level 2 test | BKPD-C40/3+1-385 | —— | 20KA | 40KA | 1.6kV | 3P+N | ≥16mm2 | 21 0mm2 | |
TN-S | Single phase | Level 2 test | BKPD-C40/2-385 | —— | 20KA | 40KA | 1.6kV | 2P | ≥16mm2 | 21 0mm2 | |
TT | Single phase | Level 2 test | BKPD-C40/1+1-385 | —— | 20KA | 40KA | 1. .6kV | 1P+N | ≥16mm2 | 210mm2 | |
LZP3-LPZ4 | TN-S | Three phase | Level 2 test | BKPD-D25/4-320 | —— | 10KA | 25KA | 1.3kV | 4P | ≥16mm2 | 210mm2 |
T | Three phase | Level 2 test | BKPD-D25/3+1-320 | —— | 10KA | 25KA | 1.3kV | 3P+N | ≥16mm2 | 210mm2 | |
TN-S | Single phase | Level 2 test | BKPD-D25/2-320 | —— | 10KA | 25KA | 1.3kV | 2P | ≥16mm2 | 210mm2 | |
TT | Single phase | Level 2 test | BKPD-D25/1+1-320 | —— | 10KA | 25KA | 1.3kV | 1P+N | ≥16mm2 | 210mm2 |