Tianjin Estel Electronic Science and Technology Co.,Ltd
| Payment Terms | L/C,D/A,T/T, Western Union, Paypal, etc. |
| Supply Ability | 300 + Sets + per month |
| Delivery Time | 20-30 working days |
| Packaging Details | Wooden case |
| Dimension | H2200mm×W750mm×D750mm |
| Power Inputs | Grid power, Solar power, Diesel generator, with battery backup |
| Power Subrack | 9U, with controller |
| AC Input | Three Phase: 200~240 VAC/346~415 VAC; Single-phase: 200~240 VAC |
| DG Input | Support |
| PV System | 9kW (Can be customized, max. 12kW) |
| Rectifier System | 24kW |
| DC Output | -48VDC |
| PDU | With customized output power distribution panel |
| Cooling | 3000W |
| IP Grade | IP55 |
| Packaging | Wooden case |
| Brand Name | ESTEL |
| Model Number | ET7575200-38U |
| Certification | CE UL FCC |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C,D/A,T/T, Western Union, Paypal, etc. | Supply Ability | 300 + Sets + per month |
| Delivery Time | 20-30 working days | Packaging Details | Wooden case |
| Dimension | H2200mm×W750mm×D750mm | Power Inputs | Grid power, Solar power, Diesel generator, with battery backup |
| Power Subrack | 9U, with controller | AC Input | Three Phase: 200~240 VAC/346~415 VAC; Single-phase: 200~240 VAC |
| DG Input | Support | PV System | 9kW (Can be customized, max. 12kW) |
| Rectifier System | 24kW | DC Output | -48VDC |
| PDU | With customized output power distribution panel | Cooling | 3000W |
| IP Grade | IP55 | Packaging | Wooden case |
| Brand Name | ESTEL | Model Number | ET7575200-38U |
| Certification | CE UL FCC | Place of Origin | CHINA |
| High Light | Telecommunication Power Supply System ，Hybrid Energy Telecom Power System ，Telecommunication Power System | ||
Solar Power Grid Diesel Generator Battery Hybrid Telecom Power System for Outdoor Telecom Site Power Supply
1. Introduction
ESTEL Hybrid Energy Telecom Power System is a hybrid power supply solution that uses solar energy, diesel generator (DG), and grid power as the main power sources for telecommunication equipment.
It uses clean and low cost clean energy power to constitute a reliable power system, it provides high quality power for modern telecommunication services, and help telecom service providers to expand their business in those areas have no grid power, or have unstable grid power supply.
2. Applications
3. Telecom Power System Structure
It is composed of an outdoor telecom cabinet, telecom power system, a cooling system, batteries an environment monitoring unit and sensors.
1) Cabinet Enclosure - Features
| Item | Description |
| External Dimension | H2200mm×W750mm×D750mm |
| Internal Space | 19-inch standard rack, 38U space |
| Material | Galvanized steel |
| Insulation | With PEF for heat insulation |
| Door | One front door, with recessed built-in hinge |
| Lock | Three-point lock |
| Cable Routing | Cable in from the bottom of cabinet |
| Coating | Polyester powder coating |
| Color | RAL7035 |
| IP Grade | IP55 |
2) Telecom Power System
| Item | Description |
| Type | 19’’ standard rack mountable |
| Height | 9U |
| AC Input | Three Phase: 200-240 VAC/346-415 VAC Single-phase: 200-240 VAC |
| Input MCB | 1×63A/3P |
| Input SPD | Class C (20KA/40KA) |
| Rectifier subsystem | 24kW, 6pcs 4kW rectifier modules |
| PV subsystem | 9kW, 3pcs 3kW low voltage photovoltaic modules |
| DC Output | -53.5VDC, Output voltage range: -42 to -58VDC |
| Controller | MC2600 |
| Load MCB | LLVD: 2×80A/1P+2×63A/1P BLVD: 1×63A/1P+14×32A/1P+2×16A/1P (Remark: Can be configured according to client’s requirements) |
3) Cooling System
| Item | Description |
| Model | DC30HDNC1D |
| Brand | Envicool |
| Cooling Capacity | 2800W |
| Heating Capacity | 500W (Optional) |
| Power Consumption | 870W |
| External Dimension | H746mm×W446mm×D300mm (Without flange) |
| Power Supply | -48VDC |
| Communication | RS485 |
| Installation | Door-mounted |
| RoHS Compliant | Yes |
| IP Grade | IP55 |
4) Batteries
Features of 48V100Ah LiFePO4 Battery:
| Item | Parameters |
| Model | LFELI-48100 |
| Rated Capacity (5HR) | 100 Ah |
| Nominal Voltage | 48V |
| Discharge Ending Voltage | 40.5V |
| Charging Limited Voltage | 54V |
| Max. Charging/Discharging Current | 100A |
| Weight | Approx. 40kg |
| Energy | 4800Wh |
| Display | With LCD display |
| Max. Number of Parallel Connection | 15 |
| Dimensions (W*D*H) mm | 442*450*132 |
| Design Life | 20 years |
| Cycle Life | 6000 cycles |
| IP Class | IP30 |
| Case Material | SPCC |
| Operating Temperature | Charging: 0 to +45℃ Discharging: -10 to +55℃ Storage: -20 to +60℃ |
| Terminal | M6 |
| Constant Current Discharge Table (Amperes) at 25℃ | |||||
| Voltage / Time | 1h | 2h | 3h | 5h | 10h |
| End of discharge voltage 40.5V | 100A | 50A | 33.3A | 20A | 10A |
| Constant Power Discharge Table (Watts) at 25℃ | |||||
| Voltage / Time | 1h | 2h | 3h | 5h | 10h |
| End of discharge voltage 40.5V | 4800W | 2400W | 1600W | 960W | 480W |
5) Environment Monitoring Unit
The environment monitoring unit (FSU) is a high-performance low-cost FSU (Field Supervision Unit) device integrating Data Acquisition, Intelligent Protocols Processing and Communication Module.
As a smart DAC (Data Acquisition Controller) installed in every telecommunication station or base station in Power Supply & Environment Surveillance System, FSU accesses different sensors to get various environment data and non-intelligent devices status and communicates with intelligent devices (including telecom power supply, lithium battery BMS, air-conditioner, etc.) via RS232/485, Modbus or other kinds of communication interface. FSU captures the following data in real time and delivers to remote monitoring center via B-Interface, SNMP protocol.
Environment Monitoring topological graph:
6) Sensors
Wide range of sensors can be integrated into the ESTEL Hybrid Energy Telecom Power System, to provide online monitoring and alarm for the operation environment conditions of power system.
| Sensor | Function |
| Door magnetic sensor | Door open status monitoring and alarm |
| Water sensor | Cabinet water immerse monitoring and alarm |
| Smoke sensor | Burning smoke monitoring and alarm |
| Temperature and humidity sensor | Temperature and humidity monitoring and alarm |
| Oil level sensor | Fuel level monitoring and alarm |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Year Established:
2002
Total Annual:
15 Million-20 Million
Employee Number:
101~200
Ecer Certification：
Verified Supplier
Introduction Tianjin Estel Electronic Science and Technology Co., Ltd (ESTEL(GUANGDONG)TECHNOLOGY CO., LTD), located in China, is a professional supplier of integrated outdoor telecom cabinet and temperature control solutions for outdoor telecom base station. As a science and tech... Introduction Tianjin Estel Electronic Science and Technology Co., Ltd (ESTEL(GUANGDONG)TECHNOLOGY CO., LTD), located in China, is a professional supplier of integrated outdoor telecom cabinet and temperature control solutions for outdoor telecom base station. As a science and tech...
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