Product Overview
The NPTTS-HC/40 high-voltage test capacitor is a core supporting device for power transformer test stations, belonging to the NPTTS-HC series of containerized compensation capacitor banks. It is often used in conjunction with high-voltage variable-frequency power supplies and is specifically designed for transformer load testing scenarios. The equipment can achieve large-capacity reactive power compensation through Y/Δ switching mode, effectively reducing the power supply capacity requirements for transformer load tests. Paired with a high-voltage variable-frequency power supply, it can output low-distortion sine wave power with adjustable frequency and voltage. The entire system supports full-parameter customization, providing a stable, efficient, integrated solution for power supply and reactive power compensation for various transformer tests.
The complete unit adopts an integrated 40-foot container design, incorporating standardized capacitor banks and an intelligent control system. It is easy to deploy and highly mobile, perfectly suited for outdoor temporary testing, on-site testing without access to high-power grids, and overseas project construction scenarios. It can be flexibly expanded to meet the testing needs of transformers with different capacities, significantly reducing the power supply configuration and infrastructure costs of test stations.
Working Principle
The equipment relies on a four-series-parallel and Y/Δ combination switching structure, allowing flexible switching between operating modes to adapt to reactive power compensation needs at different voltage levels;
Through energy storage compensation by large-capacity capacitor banks, it counteracts the substantial reactive power generated during transformer load testing, reduces the main power supply load, and lowers the requirements for power supply capacity configuration;
When paired with a high-voltage variable-frequency power supply that outputs standard low-distortion sine wave power, it achieves precise voltage and frequency regulation, ensuring accurate and stable data for no-load and load loss tests of transformers;
The entire unit is centrally controlled via an HMI host and remote communication computers, enabling automated operation and supporting parameter customization and expansion to accommodate various complex transformer testing conditions.
Core Technical Parameters
1. Equipment Specifications: 40-foot container-type high-voltage test capacitor
2. Rated Total Capacity: 12,900 kVAr
3. Single-stage Group Capacitance: Options include 25 kVAr, 50 kVAr, 100 kVAr, 200 kVAr, 300 kVAr, and 400 kVAr
4. Standard Configuration Capacity: 1,075 kVAr per single stage, with a phase capacity of 4,300 kVAr
5. Rated Voltage per Capacitor: 1.3 kV per phase
6. Compatible Voltage Levels: 1.3 kV, 2.25 kV, 2.6 kV, 3.9 kV, 4.5 kV, 5.2 kV, 6.75 kV, and 9 kV
7. Connection Method: Four-series-parallel and Y/Δ combination switching
8. Control Method: HMI host control and remote communication computer control
9. Customization Services: Full-capacity and full-parameter personalization available
Core Advantages and Selling Points
Large-Capacity Reactive Power Compensation: Supports Y/Δ mode switching, delivering strong large-capacity reactive power compensation and significantly reducing the power supply capacity requirements for transformer load tests
Multi-Voltage Level Compatibility: Compatible with multiple voltage levels from 1.3 kV to 9 kV, covering the vast majority of power transformer testing scenarios
Intelligent and Controllable Operation: Equipped with an HMI human-machine interface and a remote communication control system, offering convenient operation, remote management capabilities, and a high degree of automation
Containerized and Mobile: Featuring an integrated 40-foot container structure, enabling rapid deployment and flexible relocation, suitable for outdoor and temporary testing scenarios
Flexible Expansion and Customization: Supports selection of various single-stage capacities and full-parameter customization, adapting to different specifications of transformer testing needs
Precise Test Data: Paired with a variable-frequency power supply that outputs standard waveforms, resolving the issue of waveform distortion in traditional power supplies and ensuring accurate, compliant test data
Significant Cost Reduction and Efficiency Gains: Effectively lowers the investment required for configuring the main power supply of test stations, facilitates upgrades and retrofits of older testing equipment, and saves project infrastructure costs
Target Customer Groups
Global transformer manufacturers, third-party transformer certification and testing agencies, power test station construction entities, power EPC engineering companies, grid operation and renovation units, and new energy enterprisesTransformer manufacturing enterprises
Application Scenarios (expanding long-tail keywords to improve Google rankings)
Large-capacity load testing, no-load and load loss testing projects conducted by transformer manufacturers
Type tests and standard performance testing projects carried out by third-party certification and testing agencies
On-site mobile transformer load testing under conditions without access to high-power grids
Power supply and reactive power compensation support for outdoor temporary test stations and containerized transformer test stations
Special testing scenarios involving non-standard frequencies and voltages for new energy and export-oriented transformers
Renovation projects upgrading the power supply systems of aging transformer test stations, reducing the investment required for main power supply capacity
Solving Industry Pain Points
Addresses the industry challenge of high reactive power demand during transformer load testing and excessively high procurement and infrastructure investment costs for test power supplies
Overcomes the problem of traditional test power supplies having unadjustable voltage and frequency, as well as non-standard waveforms, leading to deviations and non-compliance in transformer test data
Solves the pain point of unstable power supply and insufficient power at outdoor and temporary test sites, preventing large-capacity transformer load tests from being carried out
Addresses the shortcoming of traditional test equipment having poor versatility and limited applicability, unable to flexibly adapt to different capacity transformer tests
Resolves the issue of traditional test equipment being bulky, difficult to move, requiring long deployment cycles, and resulting in low on-site construction efficiency
Core Product Value
The NPTTS-HC/40 high-voltage test capacitor creates core value for transformer test station construction and upgrade projects: Through its large-capacity reactive power compensation function, it significantly reduces the main power supply configuration capacity and equipment procurement costs, cutting down on infrastructure investment for test stations; its containerized integrated design allows for rapid on-site deployment and supports mobile outdoor testing, breaking free from site and grid constraints; it precisely adapts to non-standard voltage and frequency testing scenarios, meeting the testing standards for export transformers and new energy transformers, helping enterprises secure international certifications and overseas engineering projects, and comprehensively enhancing the stability, compliance, and efficiency of transformer testing.
Frequently Asked Questions (FAQ)
Q1: What is the core function of the NPTTS-HC/40 high-voltage test capacitor?
A: Primarily used for reactive power compensation at transformer test stations, achieving large-capacity reactive power compensation through Y/Δ switching, thereby reducing the main power supply's capacity requirements for load tests, while working in tandem with a variable-frequency power supply to ensure stable and compliant test power supply.
Q2: Which voltage and capacity conditions does the equipment support?
A: Supports multiple voltage levels from 1.3 kV to 9 kV, offers options for single-stage capacities ranging from 25 kVAr to 400 kVAr, with a standard configuration of 4,300 kVAr per phase and a total capacity of 12,900 kVAr, and fully supports parameter customization.
Q3: Does the equipment support remote control and operation?
A: Yes, equipped with an HMI host control system and compatible with remote communication computer control, offering smart and convenient operation, enabling remote maintenance and management.
Q4: Is the equipment suitable for outdoor and mobile testing?
A: Yes, featuring a 40-foot containerized integrated design with high structural integration and ease of transport and deployment, making it ideal for outdoor temporary testing and on-site testing without fixed grid access.
Q5: Can it adapt to export transformers and non-standard testing scenarios?
A: Yes, when paired with a high-voltage variable-frequency power supply, it can achieve precise voltage and frequency regulation, accommodating the non-standard frequency and voltage testing needs of new energy and export-oriented transformers, and supporting customized project modifications.
