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China Suppliers Factory 100KT 110KT 125KT Power Conversion System Inverter for AC/DC Dual Backup Auxiliary Power
🔋 Power Conversion Invertor
This is the core equipment in an energy storage system and is often referred to as the "brain" of the system. Its main function is to convert power between alternating current (AC) and direct current (DC), enabling the control and dispatch of electrical energy.
✔ Functions Include: AC/DC Conversion
Charging (AC → DC): When there is excess power from the grid (or AC power generated by a PV inverter), the PCS converts it into DC electricity to store in the batteries. This process is called rectification.
Discharging (DC → AC): When electricity is needed, the PCS converts the DC power from the batteries into AC power and supplies it to the grid or to the load (electrical equipment). This process is called inversion.
🔎 Grid-Tied and Off-Grid Operation
The PCS enables the energy storage system to switch between grid-tied mode (connected to the grid) and off-grid mode (operating independently, e.g., in a microgrid) as needed.
📶 EMS Smart Energy Management System
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Multiple configurable operating modes: off-grid, grid-tied, and grid charging
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LCD smart touch Screen Display
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AC/DC dual backup for auxiliary power supply
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Control Technology for Unbalanced Loads
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Standard RS 485 modbus RTU protocol
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WIFI/ LAN Remote monitoring and control app available (optional)
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Support add Static Transfer Switch (STS) for Grid-Tie/Off-Grid Applications (optional)
| Model | Mars-125KT | Mars-110KT | Mars-100KT |
|---|---|---|---|
| DC side parameters | |||
| Maximum DC voltage | 1,000V | 1,000 V | 1,000v |
| Minimum DC voltage[1] | 580V | 580V | 580V |
| DC voltage operating range | 350-1000 V | 350-1000V | 350-1000v |
| Maximum DC current | 216A | 190A | 173A |
| AC side parameters (grid-connected) | |||
| Rated charging/discharging power | 125kW | 110kW | 100kw |
| Maximum charge and discharge power | 150kW | 132kW | 120kw |
| Rated charge and discharge current | 182A | 160A | 145A |
| Maximum charge-discharge current | 217A | 192A | 174A |
| Rated grid voltage | 400V | 400V | 400V |
| Permissible grid voltage range | 300-460 V | 300-460 V | 300-460v |
| Rated grid frequency | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz |
| Current total harmonic distortion rate | <3% (at rated power) | <3% (at rated power) | <3% (at rated power) |
| Power factor | > 0.99 | > 0.99 | >0.99 |
| Power factor range | -1~1 | -1~1 | -1~1 |
| Overload capacity | 1.2 Pn, continuous for 1 minute | 1.2 Pn, continuous for 1 minute | 1.2 Pn, continuous for 1 minute |
| AC side parameter (off-grid) | |||
| Rated input voltage | 400V | 400V | 400V |
| Voltage deviation | ±2% | ±2% | ±2% |
| etotalharonicdistortionrate | <3% (linear load) | <3% (linear load) | <3% (linear load) |
| Efficiency | |||
| Maximum efficiency | 98.9% | 98.9% | 98.9% |
| Protection | |||
| DC reverse polarity protection | Supported | Supported | Supported |
| AC short-circuit protection | Supported | Supported | Supported |
| AC output overcurrent protection | Supported | Supported | Supported |
| Surge protection | Level 2 | Level 2 | Level 2 |
| Insulation resistance monitoring | Supported | Supported | Supported |
| Temperature protection | Supported | Supported | Supported |
| Basic parameters | |||
| Topology | Without transformer | Without transformer | Without transformer |
| Ambient temperature | -40℃~+60℃ | -40℃~+60℃ | -40℃~+60℃ |
| Protection level | IP20 (module and battery pack integrated solution, system protection level is IP54 or above) | IP20 (module and battery pack integrated solution, system protection level is IP54 or above) | IP20 (module and battery pack integrated solution, system protection level is IP54 or above) |
Frequently Asked Questions (FAQ)
1. What is the primary function of the Power Conversion Inverter (PCS)?
The PCS acts as the "brain" of the energy storage system. Its main function is to convert power between alternating current (AC) and direct current (DC), managing both the charging process (AC to DC rectification) and the discharging process (DC to AC inversion) to control and dispatch electrical energy.
2. Can the Mars series PCS operate independently from the utility grid?
Yes. The Mars series PCS supports both grid-tied and off-grid operations. It enables the energy storage system to switch smoothly between grid-connected mode and independent off-grid mode (such as in a microgrid) as required by the site setup.
3. What communication and monitoring options are available?
The system features standard RS 485 Modbus RTU protocol interface. Additionally, users can opt for WIFI or LAN modules to enable remote monitoring and control via a dedicated application.
4. How does the system handle unbalanced loads?
The Mars PCS is equipped with advanced control technology specifically designed for unbalanced loads, ensuring stable and reliable power supply even when phase demands are unequal.
5. What safety protections are built into the Mars-100KT/110KT/125KT models?
The system includes comprehensive safety features such as DC reverse polarity protection, AC short-circuit protection, AC output overcurrent protection, Level 2 surge protection, insulation resistance monitoring, and automatic temperature protection.
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