CBMV6600K-DST-01_V4
Datasheet for 6600kVA transformer station
Disclaimer
Information in this document is for general purposes only. While we make every effort to ensure accuracy, we make no guarantees and reserves the right to change details without notice. For the latest information, please contact us or visit our website.
Manufactured by EagleRise in China
We subcontract the assembly of MV transformer to EagleRise, a Shenzhen, China based manufacturer selected for its experience and strength in the renewable energy sector.
Eaglerise Electric & Electronic (China) Co., Ltd. is a publicly listed company based in Shenzhen China with sales over 630M USD in 2024. see https://www.eaglerise.com/
1.Norms reference
Standard No. | Standard Name |
|---|---|
IEC 62271-103 | High-voltage switchgear and control gear – Part 103: Switches for rated voltages above 1kV up to and including 52kV |
IEC 62271-100 | High-voltage switchgear and control gear – Part 100: Alternating-current circuit-breakers |
IEC 62271-102 | High-voltage switchgear and control gear – Part 102: Alternating-current disconnectors and earthing switches |
IEC 62271-105 | High-voltage switchgear and control gear – Alternating-current Switch Fuse Combination 1 |
IEC 62271-200 | High-voltage switchgear and control gear – Part 200: AC metal-enclosed switchgear and control gear for rated voltages above 1kV up to and including 52kV |
IEC 60529 | Degrees of protection provided by enclosures (IP Code) |
IEC 62271-1 | High-voltage switchgear and control gear Part-1 Common specifications |
IEC 60076-1 | Power transformers – Part 1: General |
IEC 60076-2 | Power transformers – Part 2: Temperature rise for liquid-immersed transformers |
IEC 60076-3 | Power transformers – Part 3: Insulation levels, dielectric tests and external clearances in air |
IEC 60076-4 | Power transformers – Part 4: Guide to the lightning impulse and switching impulse testing – Power transformers and reactors |
IEC 60076-5 | Power transformers – Part 5: Ability to withstand short circuit |
IEC 60076-7 | Power transformers – Part 7: Loading guide for mineral-oil-immersed power transformers |
IEC 60076-18 | Power transformers – Part 18: Measurement of frequency response |
IEC 60076-10 | Power transformers – Part 10: Determination of sound levels |
IEC 60076-20 | Power transformers – Part 20: Energy efficiency |
IEC 60076-26 | Power transformers – Part 26: Functional requirements of insulating liquids for use in power transformers |
IEC 60296 | Fluids for electrotechnical applications – Mineral insulating oils for electrical equipment |
ISO 668 | Series 1 freight containers — Classification, dimensions and ratings |
IEC 60439-1 | Low-voltage switchgear and control gear assemblies Part 1: General rules |
IEC 62040-1 | Uninterruptible power systems (UPS) – Part 1: Safety requirements |
IEC 62271-202 | High-voltage switchgear and control gear – Part 202: High-voltage/low-voltage prefabricated substation |
IEC 60840 | Power cables with extruded insulation and their accessories for rated voltages above 30 kV (Um = 36 kV) up to 150 kV (Um = 170 kV) – Test methods and requirements |
IEC 60038 | IEC standard voltages |
IEC 61558 | Safety of transformers, reactors, power supply units and combinations thereof – Part 1: General requirements and tests |
IEC 60137 | Insulated bushings for alternating voltages above 1000 V |
IEC 60214-1 | Tap-changers – Part 1: Performance requirements and test methods |
2.Introduction
MV Integrated transformer station overview
The transformer container is an integrated transformer station for battery energy storage system, A complete power supply unit in which the medium-voltage switchgear, transformer, low-voltage switchgear, and auxiliary power supply system required for a substation are highly integrated into a standard 20-foot container. The main features are as follows:
High reliability and safety
Container shells are made of high-strength steel plates, IP54 Ingress protection rating C5M level of anticorrosion, Suitable for all kinds of harsh environments and the safety of personnel.
All device compliance with international standards, Integrated MV transformer and switchgear.
The fully enclosed structure effectively isolates live equipment, MV and LV isolated, Integrated Low-voltage PDU and protection systems, Smoke sensing alarm.
Easy O&M
All equipment is installed, wired, debugged, and tested in the factory to ensure product quality and performance. After arrival at the site, only basic fixation, external cable connection, and simple debugging are needed to put it into operation, greatly reducing the workload and time of on-site construction.
MV Transformer Architecture
Internal equipment composition
The MV Integrated Transformer Station primarily comprises transformers, Medium voltage ring network cabinet (for grid interconnection), low-voltage switchgear cabinet (for BESS connection), communication and monitoring devices, power distribution panels (supplying power to the transformer’s internal control systems, fans, lighting, and BESS auxiliary equipment), Auxiliary transformer (providing power to BESS auxiliary systems and transformer internal equipment), UPS units, and other supporting components. The internal layout of the transformer is illustrated in the figure below:
Transformer Internal Layout Diagram
Bottom cable entry hole
The diagram below illustrates the bottom layout of the transformer, highlighting the main cable entry and exit points, as well as the oil leakage outlet. Each labeled hole serves a specific function for safe and efficient operation, including medium- and low-voltage cable entry, connection to external communication and power devices, and management of transformer oil leakage. The labels A through D correspond to the detailed descriptions provided in the table.
Transformer Bottom Layout Diagram
Main Components List
No | Name | Model specification | Qty |
|---|---|---|---|
1 | Container shell | 20HC-605824382896 | 1 |
2 | Main transformer unit | SFL-6600/20，Dy11y11，Ud=8%，20kV±2×2.5%/0.69/0.69 | 1 |
SFL-6600/21，Dy11y11，Ud=8%，21kV±2×2.5%/0.69/0.69 | |||
3 | Fan | 1 | |
4 | Lighting system | 1 | |
5 | Auxiliary transformer | SGL-200kVA/690V/400V-230V Dyn11 | 1 |
6 | UPS | 1kVA/30min | 1 |
7 | Measurement and control unit | CEM-9000.Bilingual Panel (Chinese & English) – All-in-One | 1 |
8.1 | Grounding Switch | 20kA | 1 |
8.2 | Three Station Isolation Switch | 630A/20kA | 1 |
8.3 | Vacuum Circuit Breaker | 630A/20kA | 1 |
8.4 | Charged Display | Nucleated Phase | 2 |
8.5 | Current Transformer | 300/5A 0.5/10P20 2.5VA/2.5VA | 3 |
8.6 | Pointer ammeter | 99T-A | 3 |
8.7 | Lightning Arrester | 34/85 | 3 |
8.8 | Relay Protection Device | Using measurement and control to achieve | 1 |
8.9 | Smoke Sensing | 1 | |
8.10 | Cable joint accessories | 3 | |
9.1 | Fixed-type Frame Circuit Breaker | ABB E2N1600 LSI 3P AC690V 66kA | 4 |
9.2 | Surge Protective Device (SPD) | Jin Li JLSP-BC680/12.5/3P+1/Y | 1 |
3.Technical specifications
3.1. System Architecture Drawing
Primary Side Design Diagram of Transformer:
Please refer to the annex.
3.2. System Main Technical Specifications
Overall Technical Parameters Table
Item | 6600K / 20 | 6600K / 21 |
|---|---|---|
Rated low voltage | 690V/690V | |
Rated high voltage (kV) | 20 | 21 |
Operating voltage range (kV) | 19-21 | 20-22 |
Maximum voltage (kV) | 24 | |
Rated frequency (Hz) | 50 | |
Lighting impulse withstand voltage | 125kV | |
Size | 6058×2438×2896 | |
Weight (T) | ＜25T | |
Enclosure Protection Rating | ≥IP54 | |
Enclosure Corrosion Resistance Rating | C5-M | |
Tap is fixed at factory
CBMV6600 is built at a pre-set High Voltage (20kV). Tap changes to higher voltage must be coordinated with factory to adjust BESS subsystem controller and verify protection settings.
3.3. MV Transformer Key features
Transformer Technical Performance Parameters Table
Item | SFL-6600 / 20 | SFL-6600 / 21 |
|---|---|---|
Type | Step up oil immersed (energy storage) transformer | |
Number of phases | 3 | |
Coil material | A1 | |
Operating Ambient Temperature | -30℃~40℃ | |
Altitude for Operation without Derating | ≤1000m | |
Rated Voltage Ratio (kV) | 20/0.69/0.69 | 21/0.69/0/69 |
Operating voltage range (kV) | 19-21 | 20-22 |
Maximum voltage (kV) | 24 | |
Transformer Rated Capacity (kVA) | 6600 @ 40C | |
Voltage Regulation Method | Off-Load Tap Changer | |
Range of Tap Changer | ±2×2.5% | |
Rated Frequency | 50Hz | |
Vector Group | D y11y11 | |
Transformer Structure | HV: Wire Winding, LV: Foil Winding | |
Impedance Voltage | 8% | |
Efficiency at Rated Voltage and Unity Power Factor | Tier2 | |
Insulation Thermal Class | A | |
Permissible Oil Temperature Rise at Full Load | ≤ 60 K | |
Cooling Method | ON/AN | |
Noise Level | At 0.3 m from Transformer, ≤ 70 dB | |
Lightning Impulse Level (kV) | 125 | |
1 minute Power-Frequency Withstand Voltage Level (High-Voltage Winding) (kV) | 50 | |
1 minute Power-Frequency Withstand Voltage Level (Low-Voltage Winding) (kV) | 3 | |
Temperature Control and Protection Device | Yes | |
High-Voltage Incoming Line Method | Cable Connection | |
Low-Voltage Incoming Line Method | Busbar Connection | |
Oil Overtemperature Protection (Yes/No) | Yes | |
Oil Overtemperature Alarm (Yes/No) | Yes | |
3.4. MV Switchgear Technical Specifications
3.4.1. Overall Technical Parameters Table
Medium voltage ring main unit cabinet
Item | Value |
|---|---|
Compliant with the standard | IEC Standard |
Ring Main Unit (RMU) Type | Metal-Enclosed |
Number of Phases | 3 |
Insulating Gas | SF6 |
Rated Operating Gas Pressure | 1.4bar absolute pressure @20℃ |
Life | ≥30 Years |
Cabinet internal configuration | DV |
High-Voltage Gas Chamber | ≥IP67 |
Front Panel / Operating Mechanism | IP2X |
Cable Compartment Cover | IP3X |
3.4.2. Vacuum Circuit Breaker Technical Specifications
Vacuum Circuit Breaker (VCB)
Item | 6600K / 20 | 6600K / 21 |
|---|---|---|
Rated Voltage | 24kV | |
Rated Current | 630A | |
1-minute Power Frequency Withstand Voltage | 50kV | |
Lightning Impulse Withstand Voltage | 125kV | |
Short-Circuit Breaking Current | 20kA | |
3-Second Short-Time Withstand Current | 20kA | |
3.4.3. Isolator Switch Specifications
Isolator Switch
Item | 6600K / 20 | 6600K / 21 |
|---|---|---|
Rated Voltage | 24kV | |
Power-Frequency Withstand Voltage | 50kV | |
Lightning Impulse Withstand Voltage | 125kV | |
3-Second Short-Time Withstand Current | 20kA | |
Mechanical Operating Life | 3000 | |
3.4.4. Earthing Switch Specifications
Earthing Switch
Item | 6600K / 20 | 6600K / 21 |
|---|---|---|
Rated Voltage | 24kV | |
Power-Frequency Withstand Voltage | 50kV | |
Lightning Impulse Withstand Voltage | 125kV | |
3-Second Short-Time Withstand Current | 17.4kA | |
Mechanical Operating Life | 3000 | |
3.5. LV switchgear Technical Specifications
3.5.1. Overall Technical Parameters Table
Low-voltage switchgear cabinet
Item | Value |
|---|---|
Type | Fixed frame circuit breaker |
Number of poles | 3 |
Protection type | Electronic (long delay, short delay, instantaneous) |
Electrical life | ≥1000 |
Mechanical life | 10000 |
Other | Low voltage circuit breakers can be opened and closed locally at the substation, and should also be able to perform remote opening and closing operations remotely through the substation monitoring equipment. |
The frame circuit breaker electronic trip unit should have instantaneous current quick break/overcurrent protection, short delay current quick break protection, long delay overcurrent protection, and adjustable protection delay. |
3.5.2. Low-Voltage Circuit Breaker Specifications
Low-Voltage Circuit Breaker
Item | Value |
|---|---|
Low-Voltage Circuit Breaker Brand | ABB |
Rated Voltage | 0.69kV |
Rated Insulation Voltage | 1000V |
Rated Current | 1600A |
Rated Operating Breaking Capacity (Ics) | 66kA |
Rated Ultimate Breaking Capacity (Icu) | 66kA |
Rated Short-Time Withstand Current / Duration (Icw/t) | 66kA/1s |
Rated short-circuit current (Icm) peak value (kA) | 145kA |
4.Relay protection device
The CEM9000 integrated transformer measuring and controlling device is an integrated transformer measurement and control management unit. It is based on communication management, protocol conversion, and fiber ring network communication. The device is designed using years of experience in the development and operation of integrated automation systems for photovoltaic power plants, leveraging mature computer and network communication technologies. It meets the requirements of integrated automation and protection for power systems.
4.1. Applicable Standards for the Product
4.2. Outline Dimension of the Device Body
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4.3. Hardware parameters
Hardware | Specifications |
|---|---|
CPU | TI AM335x, Cortex-A8 |
Flash | 32M Bytes for Application program |
Main Memory | 256M Bytes DDR3 |
Storage | SD card |
EEPROM | 8 KBytes |
Ethernet Interface | 10/100/1000M * 2 / SFP |
Debug Port | CPU Built-in, 2.54mm pin header |
Console Port | CPU Built-in, 2.54mm pin header |
Com Port | 8 ports (RS485) |
CAN | Obligation |
DI/DO | Obligation |
Indicator | Com port TX/RX LED * 9, Power LED * 1, Run LED * 1, LAN Active LED * 4, LAN Speed LED * 4 |
Default Button | 1 Key |
Real Time Clock | Yes |
Provide a Buzzer | Yes |
Power Consumption | 5V |
4.4. Software parameters
Item | Value |
|---|---|
Operating system | Linux |
Kernel version | 3.2.0 |
Protocol stack | TCP, UDP, IPv4, SNMPv1, ICMP, ARP, HTTP, DHCP, NTP, telnet, NFS, PPP, PPPoE |
File system | Ext3, VFAT, Ext2, Cramfs, Jiffs2 |
System tool | bash, busybox, tinylogin, telnet, ftp, ssh, scp |
Supporting services and courses | Telnetd |
Telnet server processes | Sshd |
Safety shell server processes | Apache – Web server daemon, support for PHP and XML |
Snmpd | Snmpd agent process |
pppd | Serial port dial-in/pull-out process and PPPoE |
Ftpd | ftp server processes |
openvpn | Application layer VPN process based on OpenSSL library |
openssl | Application process on encryption Interface Library based on ssleay |
Program development environment | arm-linux-gcc |
POSIX standard C Library | Glibc |
GDB | Source level debug server |
Protocol access – Upwards | IEC-103/104 upload, Modbus/TCP upload |
Protocol access – Downwards | Support for MODBUS-RTU serial port DL/T645 protocol access or user-defined protocol |
4.5. Electrical protection
4.5.1. First overcurrent protection
Protective action: Any phase of the three-phase current is greater than fix value, take the action.
Action time: Timing limit protection, with a time error of less than ±40ms.
Setting parameter:
Item | Range and accuracy | Default |
|---|---|---|
Protective pressure plate | Output/input | output |
Current setting | （50%～800%）Ie, 1% | 600% |
Delay time | 0.0s～60.0s，0.1s | 0.0 |
Protective action | Reporting the emergency/Tripping operation | Tripping |
4.5.2. Second overcurrent protection
Protective action: Any phase of the three-phase current is greater than fix value, take the delay action.
Action time: Timing limit protection, with a time error of less than ±40ms.
Setting parameter:
Item | Range and accuracy | Default |
|---|---|---|
Protective pressure plate | Output/input | output |
Current setting | （50%～800%）Ie, 1% | 300% |
Delay time | 0.1s～60.0s，0.1s | 1s |
Protective action | Reporting the emergency/Tripping operation | Tripping |
4.5.3. Third overcurrent protection(overload protection)
Protective action: Any phase of the three-phase current is greater than fix value, take the delay action.
Action time: Timing limit protection, with a time error of less than ±40ms.
Setting parameter:
Item | Range and accuracy | Default |
|---|---|---|
Protective pressure plate | Output/input | output |
Current setting | （50%～800%）Ie, 1% | 150% |
Delay time | 0.1s～60.0s，0.1s | 2s |
Protective action | Reporting the emergency/Tripping operation | Tripping |
4.5.4. Zero-sequence current protection
Superpose three-phase current vector to get the 3I0 of zero-seqence current protection.
Protective action : when 3IO was larger than fix value, take the delay action.Or else, not act.
Action time: Timing limit protection, with a time error of less than ±40ms.
Setting parameter:
Item | Range and accuracy | Default |
|---|---|---|
Protective pressure plate | Output/input | output |
Current setting | （50%～800%）Ie, 1% | 100% |
Delay time | 0.1s～60.0s，0.1s | 1 |
Protective action | Reporting the emergency/Tripping operation | Tripping |
4.5.5. Voltage break testing
Protective action : When the maximum phase voltage is greater than 80% of the rated and the minimum is less than 10% of it, 2s delay to warn PT get-off. When the maximum line voltage is less than 10% of the rated and the maximum phase voltage is greater than 5% of the rated,2s delay to warn voltage line get-off. Action time: Timing limit protection, with a time error of less than ±40ms. Setting parameter:
Item | Range and accuracy | Default |
|---|---|---|
Protective pressure plate | Output/input | output |
4.5.6. Under voltage protection
Protective action : When the maximum of the three-phase voltage is less than the fix value,delay the action ;or else, no act.
Action time: Timing limit protection, with a time error of less than ±40ms.
Setting parameter:
4.5.7. Over voltage protection
Protective action : Any of voltage is greater than fix value, delay the action. Action time: Timing limit protection, with a time error of less than ±40ms. Setting parameter
Item | Range and accuracy | Default |
|---|---|---|
Protective pressure plate | Output/input | output |
Current setting | （50%～150%）Ue，1% | 120% |
Delay time | 0.1s～60.0s, 0.1s | 5 |
Protective action | Reporting the emergency/Tripping operation | Tripping |
4.5.8. Non-electric power protection
Protective action : If the non-electric power is greater than fix value in available time, delay the action.
Action time: Timing limit protection, with a time error of less than ±40ms.
Setting parameter:
Item | Range and accuracy | Default |
|---|---|---|
Protective pressure plate | Output/input | output |
Delay time | 0.5s～60.0s, 0.1s | 1 |
Trigger mode | 0: combined effective ;1: divided effective | 0 |
Protective action | Reporting the emergency/Tripping operation | Different indifferent setting |
4.5.9. Two-stage direct flow protection (temperature protection)
Protective action : If one of the DC temperature is higher than fix value, delay the action.
Action time: Timing limit protection, with a time error of less than ±40ms.
Setting parameter:
Item | Range and accuracy | Default |
|---|---|---|
Protective pressure plate | Output/input | output |
DC setting | （0．1%～99%）DCe，1% | On the fix table |
Delay time | 0.1s～60.0s, 0.1s | On the fix table |
Protective action | Reporting the emergency/Tripping operation | Tripping |
Protection channel | 0 to 2, the 1 to 3 direct flow | 2nd |
4.6. Environment conditions
1. Environment Temperature
Work Temperature： -40℃～+70℃。
Storage: -40℃～+85℃, relative humidity is no greater than 80%. The device should be kept indoors protected from rain and snow, where the surrounding air does not contain acidic, alkaline, or other corrosive and explosive gases. It will change irreversibly if add energizing quantity in the limit cases. When the temperature recovers, the device should work naturally.
2. Relative humidity
The average maximum relative humidity in the most humid month is 90%. Meanwhile, the minimum temperature in the same month is 25℃, and condensation should not be on the surface.
3. Atmospheric pressure
50kPa～102kPa（Relative height is lower than 4.5km）.