NEC 2017/2014 Compliant Rapid Shutdown Device供应产品Northern Electric & Power Co., Ltd. (Qingdao)

Quick Details

Place of Origin:: Shandong, China

Brand Name:: NEP

Model Number:: PVG-1, PVG-1/2/3/4

Application:: Commercial

Output Frequency:: 50/60hz

Work Time (h):: 24hour

Name:: Flat And Inclined Roof Systems PV On Grid Micro Inverter

Output Type:: Dual

Efficiency(CEC):: 95.5%

Protection:: NEMA6/IP66/IP67

environment:: -40-+85 degree centigrade

Specification:: MINI

Solar Panel Type:: Grade A Polycrystalline

Battery Type:: Lithium

Output Voltage (V):: V *quantity panel

Load Power (W):: 400w

Controller Type:: self-controller

Supply Ability

Supply Ability:: 10000 Set/Sets per Month

Packaging & Delivery

Packaging Details: Flat And Inclined Roof Systems rapid shutdown
40pcs in one carton

Port: Qingdao or customized

Picture Example:

Lead Time :

Quantity(Sets)	1 - 100	>100
Est. Time(days)	3	To be negotiated

Rapid Shutdown Devic

NEC 2017/2014 Compliant Rapid Shutdown Device

NEC RAPID SHUT DOWN DEVICE

1,Application Note of PVG NEP Rapid Shut down device

Application Note: PVG-20180523 Version: 2.0

1 Executive Summary of NEP rapid shut down

PVG is the NEP rapid shut down (RSD) system solution. It has the following key features:

PVG is designed for generic PV string/central inverters and off-grid battery charger/inverters
PVG is certified for up to 1500Vdc system
PVG complies with NEC 2017 and NEC 2014 690.12 on rapid shut down

This application note describes the connection and usage of the PVG system.

2 PVG System Component rapid shut down

PVG system consists of two parts: the RSD switch PVG-1/2/3/4 and its controller PVG-C. A BDG-256 gateway is optional, but can additional function of panel level monitoring and remote monitoring through NEPVIEWER

RSD switch PVG-1/2/3/4 is installed on the rail or at the back of PV panels. It has two pairs of inputs. One pair is for connecting PV panel. The other pair is for connecting other PVGs to form a PV string. For customers who are familiar with panel level optimizers, wiring of PVGs is identical.

PVG-1/2/3/4 can connect 1 to 4 panels respectively. There is not functional difference between PVG- 1/2/3/4. The choice is mainly for economic considerations and for convenince of installation and system design.

PVG does not inlcude PV cables. Instead, length of PV cables can be chosen depending on the system size and distance between PV panels. This provides flexibility for system design and installation. For each PV cable, the only rule is that one end of the cable should be terminated with a male MC4 or campatible connector, and the other end should be terminated with a female MC4 or compatible connector. NEP also provides fixed length PV extension cables, 1-meter and 2-meter respectively, for portrait or landscape oriented PV panels.

PVG-C is a controller that commands each PVG to disconnect or connect the corresponding PV panel to the string. Communication signal is transmitted through PV cables, and thus no additional communication wire is required. For inverters that do not discharge inverter DC link capacitors in time to comply with the NEC code, an outside bleed resistor can be controlled by PVG-C through an external control board.

For a system with only one MPPT channel, only one PVG-C is required. However, for system with multiple separate MPPT channels, each channel requires one PVG-C since communication signal cannot pass through multiple MPPT channels.

2,Rapid shutdown device sepecification

NEC 2017/2014 Compliant Rapid Shutdown Device

3, details of NEP rapid shut down device

NEC 2017/2014 Compliant Rapid Shutdown Device