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DC Surge Protector for EV Charger / Energy Storage System (ESS) / Telcom Communication
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Varistor surge arrester
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Installtion to DC network
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for protection of DC network where the separating spark-over distance is kept or without LPS
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Optional remote fault signalling(S)
Surge Protective Devices (SPDs) provide protection against electrical surges and spikes, including those caused directly and indirectly by lightning. They can be utilized as complete devices or as components within electrical equipment.
Photovoltaic (PV) system converts solar energy into direct current electricity. PV system ranges from small, rooftop-mounted or building-integrated systems with capacities from a few to several tens of kilowatts, to large utility-scale power stations of hundreds of megawatts. The potential impact of lightning events increases with PV system size. At locations with frequent lightning, unprotected PV systems will suffer repeated and significant damages. This results in substantial repair and replacement costs, system downtime and loss of revenue. Properly installed surge protective devices (SPDs) will minimize the potential impact of lightning events.
Sensitive electrical equipments of PV system like AC/DC Inverter, monitoring devices and PV array must be protected by surge protective devices (SPD).
To determine the proper SPD module for the PV system and its installation, you must know:
1.the lightning round flash density;
2.the system's operating temperature;
3.the system's voltage;
4.the system's short circuit current rating;
5.the level of waveform that is to be protected against (indirect or direct lightning); and the nominal discharge current.
The SPD that is provided on the dc output must have a dc MCOV equal to or greater than the maximum photovoltaic system voltage of the panel.
THOR TRS3-C40 series type 2 or Type 1+2 DC SPDs for PV solar system can be like Ucpv DC500V,600V,800V,1000V,1200V, and the max 1500v.
- Electrical Characteristics
- Typ nameTRS3-C40 24v DC
- SPD typeT2
- Nominal PV voltage(Uocstc)24 V DC
- Maximum operating voltage mode +/-, +/PE, -/PE(UCPV)36 V DC
- Nominal discharge current (8/20μs) (In)20 kA
- Maximum discharge current (8/20μs) (Imax)40 kA
- Voltage protection level mode +/PE, -/PE(Up)≤ 0.6kV
- Short-circuit current rating(ISCPV)10kA
- Response time(ta)< 25ns
- Cross-section of connected conductors solid (min/max)16 mm² / 35 mm²
- Cross-section of connected conductors stranded (min/max)16 mm² / 35 mm²
- Remote indicationpotential-free change-over contact
- Remote indication contacts250 V / 0,5 A AC, 250 V / 0,1 A DC
- Cross-section of remote indication conductors1,5 mm²
- Degree of protectionIP20
- Range of operating temperatures (min/max)-40℃~+70℃
- Humidity range5%~95%
- MountingDIN rail 35 mm
- According to standardEN 61643-31:2012,
- Fault indicationred indication field
- RemarksOther UCPV can be customized.