Solplanet ASW100K-LT100kW three-phase string inverter, 10 MPPT

Overview

The ASW100K-LT is a 100kW three-phase string inverter with ten MPP trackers and two 32A strings per tracker, so up to twenty strings and 150kWp of PV can be connected without string fuses. Maximum apparent power is 110kVA and maximum output current 158.8A; Solplanet recommends a 160A AC breaker. MPP tracking runs from 200 to 1000V, 460–850V at full power. The IP66 housing weighs 86kg and includes Type II surge protection on both sides; maximum efficiency is 98.6%.

• 75 and 80kW with 8 MPPT, 100 and 110kW with 10
• 32A per tracker, two strings each, fuse-free
• 1100V max. input, 200–1000V MPP range
• Up to 150% PV oversizing, 98.6% max. efficiency
• 110% output on the 80, 100 and 110kW models
• IP66, 86kg, AC terminals up to 240mm²

How it works

The ASW LT 75–110kW series feeds 220/380V or 230/400V three-phase grids from up to twenty strings. Each tracker takes two strings at 32A (48A short-circuit), so high-current bifacial modules can be used, and the design is fuse-free. MPP tracking runs from 200 to 1000V, 460–850V at full power. Between 950 and 1100V the inverter stays in standby, and Solplanet limits input voltage to 850V where capacitor banks or zero export are used.

The 80, 100 and 110kW models can deliver 110% of their rating, i.e. 88, 110 and 121kVA, while the 75kW model is capped at 75kVA. Maximum efficiency is 98.6%, European efficiency 98.4% and night consumption below 3W. PV arrays of up to 150% of rated power are accepted, from 112.5kWp on the 75kW unit to 165kWp on the 110kW unit.

Installation and compatibility

The 984×640×330mm inverter weighs 86kg and is wall mounted on a bracket, with optional handles, lifting rings and an anti-theft bracket; Solplanet recommends ambient temperatures below 40°C. AC cables connect to OT/DT terminals for conductors up to 240mm². Recommended AC breakers are 125A for 75kW, 160A for 80 and 100kW and 200A for 110kW. Certificates include VDE-AR-N 4105, VDE-AR-N 4110 and EN 50549-1/-2.

Monitoring and settings

An Ai-Dongle (Wi-Fi/LAN) is supplied, and one dongle or LTE Cat-1 stick can serve up to five inverters; larger plants use the Ai-Logger, which also handles demand response. Modbus RTU and SunSpec are available on two RS485 ports for SCADA systems or third-party loggers, and export limitation works through an approved smart meter. AFCI is optional.

Questions and answers