Surge Protection for Pump Station

OVERVIEW

Today’s increased reliance on very sensitive electronics makes surge protection an important topic for Pump stations. The Insurance Institute for Business & Home Safety study found that $26 billion dollars was lost due to non-lightning power surges. In addition, there are about 25 million lightning strikes in the US each year that cause between $650M to $1B in losses according to the Insurance Information Institute, State Farm©.

This article discusses aspects of Pump Station systems to help you develop a comprehensive surge mitigation strategy for your equipment. Each section will conclude with a Surge Protective Device (SPD) Protection Point which identifies where and what SPD to use.

SPD Protection Point - Emergency Power

Equipment	System	Surge Protector Model #
Automatic Transfer Switch Line Side	120/208Vac	MDS600E-120Y
Automatic Transfer Switch Load Side	120/208Vac	MS100-120Y
Automatic Transfer Switch Line Side Genset	120/208Vac	MS200-120Y
Genset Line Side	120/208Vac	M50-120Y-A
Genset Relay Starter	24Vdc	DS220S-24DC
Genset Battery Charge Controller	120Vac	DS240S-120/G

SPD Protection Point - Pump Station

Equipment	System	Surge Protector Model #
Power Supply Input	120Vac	DS240S-120/G
Power Supply Output	24Vdc	DS220S-24DC
Pump Controller	24Vdc	DS220S-24DC
Instrumentation	Pressure Instrumentation 4-20mA	DLA-24D3
Instrumentation	Flow Instrumentation 4-20mA	DLA-24D3
PLC	Ethernet Ports	MJ8-C6A
PLC	RS-485	DLA-12D3
RTU	RF Coaxial	P8AX09-N/FF

SPD Protection Point - Motor

Equipment	System	Surge Protector Model #
MCC	480Vac	MS100-480D
VFD Input	480Vac	DS74US-480D
VFD Output	480Vac	M50-480D-A