inverter pure sine

We require frequency converters for our electrical testing laboratory to stabilize power sources. The specifications are:
- 3-phase system with Delta input and Wye output (4-wire configuration)
- Input/Output frequency: 50Hz
- Input voltage range: 0-440V, Output voltage range: 0-440V/220V
- Required capacities: 15KVA, 20KVA, 25KVA and 30KVA models
- Must handle inductive loads from electrical testing equipment
- Pure sine wave output with THD<3%
- Compliance with IEC standards for voltage/frequency tolerance
- Certification needed for ISO/IEC 17025 laboratory accreditation

No existing VFD installations in our system. Please provide technical specifications and certifications with quotation.

How much is this kind of inverter especially the solarpro SPIN - 2100W PURE WAVE

UPS Rating: 2x40 KVA / 36KW; 3 Phase In, 3 Phase Out; Double conversion; True online; Pure Sine Wave UPS; Power Management Software for LAN Shutdown and Monitoring; LCD monitoring display Panel, w/WEB/SNMP monitoring capability; Battery Banks: 36 External Batteries Power sonic 12V - 9AH (Dimension L - 350, W - 167, H - 179), 72 internal batteries power sonic, 12V - 9AH (Dimension Standard); Backup Time: 2Hours Full Load. Plz confirm product availability and pricing

would like to have your offer for the supply of the following tender items with lead time and Data sheet. MPPT charge controller, efficiency not less than 92 %, and shall meet the following specifications. voltage, as per technical specifications Controller must utilize passive cooling (not fans); Should allow parallel operation, i.e more than one unit can be connected in parallel. Controllers to be certified CE or UL and to meet at least one for the following or equivalent standards IEC 62509 or IEC 62093; The device should have LED or LCD display. Equipped with SPD in the upstream input for each Charge Controller. Product warranty shall be 5 years. 228 Pcs MPPT Charge Controller Rated 85A - 100 A, at least 150 VDC input voltage. 148 Pcs MPPT Charge Controller Rated 100 A, at least 150VDC input voltage. 83 Pcs MPPT Charge Controller Rated 100 A, at least 450VDC input voltage. Off-Grid Inverter single phase, pure sine wave, 230 V, 50Hz as per below technical specifications. - The inverter shall produce pure sine wave form with provision for battery charger, and it can be configured individually or in parallel - Output frequency shall be 50 Hz - Designed for indoor enclosure not less than IP 20 - Maximum efficiency should be not less than 90 % at full load - To be certified to meet at least CE and UL marking and complaint with IEC 62109 - The device should be integrated with LED indicators or LCD display - It shall allow adjustment of battery voltage and charging current - The device shall allow connection to grid and/or backup generator(s) - The charging function of the inverter/charger shall include battery charging functionality   and the inverter shall be wired in ways that make use of the inverter battery charging   functionality if the installation includes either mains power or a diesel generator. - Protections required: AC overload and load short circuit, overvoltage, overheating and battery reverse polarity - The inverter shall allow internet connection for remote monitoring - Product warranty shall be 5 years. 22 Pcs 7KVA Solar Off-Grid Inverter. 69 Pcs 10KVA Solar Off-Grid Inverter. . 116 Pcs 15KVA Solar Off-Grid Inverter. 

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Hybrid solar inverter circuit board?

I want to buy a foxsur FPI 1000 pure sine wave ups.

Product catalog for N-PSW 3000