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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Sales and Solution Design | 25% | - Value Selling
|
| Topic 2: Huawei Smart PV Products | 25% | - Management Platforms
|
| Topic 3: Huawei Smart PV Solutions | 35% | - Residential Smart PV Solutions
|
| Topic 4: Smart PV Industry and Market Overview | 15% | - Global PV Industry Trends
|
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NEW QUESTION # 86
How does the traditional solution ensure the security of the PV DC side?
Answer: A,C,D
Explanation:
A fuse is a traditional protection component used to interrupt excessive current on the DC side. A DC combiner box is also a traditional PV-side component that combines strings and normally contains fuses, surge protection, and DC isolation/protection elements. A manual disconnect switch is another traditional method for isolating PV strings or DC circuits during maintenance or fault handling. These three options are directly associated with DC-side protection and isolation.
Option D, AC switch, is not correct because it belongs to the AC side of the inverter output, not the PV DC side. The question is specifically about the security of the PV DC side, so AC-side switching cannot be counted as a DC-side protection method. Huawei's newer C&I safety materials contrast these conventional protections with intelligent DC-side disconnection and rapid active protection.
NEW QUESTION # 87
Which of the following media is used for MBUS communication between the smart array controller and inverter?
Answer: C
Explanation:
The exact extract asks which communication medium is used for MBUS communication between the smart array controller and the inverter. The correct answer is D. Power line carrier. In Huawei Smart PV communication architecture, MBUS is associated with communication over power cables rather than a separate RS-485 or Ethernet communication cable. Huawei SmartACU/Smart Array Controller documentation describes PLC communication over a three-phase AC power cable and shows the PLC CCO module connecting to inverters that support PLC communication. This aligns with the MBUS concept: data is transmitted over the power line carrier channel. CAN bus is typically used for local device-level communication, not this smart array controller-to-inverter MBUS link. Ethernet is used for IP networking, and RS-485 is a traditional serial communication method, but neither is the correct MBUS medium in this question. Reference: Huawei SmartACU and FusionSolar MBUS communication documentation.
NEW QUESTION # 88
Which of the following devices is not mandatory in the PV+ESS on-grid scenario?
Answer: A
Explanation:
The exact extract asks which device is not mandatory in a PV+ESS on-grid scenario. The correct answer is B. Whole-house backup box. In an on-grid PV+ESS residential system, the essential components include PV modules, an inverter, and the ESS/battery system. The system operates while connected to the grid and can use solar generation and battery storage to improve self-consumption or reduce grid electricity use. A whole-house backup box, however, is mainly required when the system must support backup or off-grid operation during utility outages. Huawei Backup Box documentation describes the Backup Box as being used in residential rooftop PV systems to control the inverter's grid-tied or off-grid state. That means it becomes necessary for backup/off-grid functionality, not for a basic on-grid PV+ESS configuration. Therefore, modules and inverter are fundamental, but the whole-house backup box is optional unless backup power is required. Reference: Huawei Residential Smart PV & ESS Solution; Huawei BackupBox Quick Guide.
NEW QUESTION # 89
Which of the following micro-grid scenarios requires a backup time of more than 6 hours?
Answer: C
Explanation:
The exact extract asks which micro-grid scenario requires a backup time of more than 6 hours. The correct answer is B. New city micro-grid. A new city micro-grid is a large, high-continuity power-supply scenario, not a small backup-only C&I load scenario. It is closer to the Red Sea/New City type of architecture, where PV and ESS must support broad, continuous power demand and maintain stable power for a large community or city-level load. Huawei's public Smart Micro-grid materials emphasize grid black-start, multiple operating modes, rapid on/off-grid switching, high/low-voltage ride-through, and reliable supply for critical loads. Huawei's Red Sea New City project is described as a large PV+ESS microgrid intended to provide clean power at city scale. Compared with industrial or commercial backup scenarios, this type of new-city microgrid needs longer backup autonomy, so the "more than 6 hours" requirement aligns with option B. Reference: Huawei Smart Micro-grid and Red Sea New City materials.
NEW QUESTION # 90
Synchronous adjustment camera is a synchronous motor without mechanical load. It automatically increases reactive power output when the voltage of the grid rises and absorbs reactive power when the voltage of the grid drops to maintain the voltage, improve the stability of the power system and improve the power supply quality of the system
Answer: A
Explanation:
The exact extract states that the synchronous adjustment camera increases reactive power output when grid voltage rises and absorbs reactive power when grid voltage drops. That operating logic is reversed, so the correct answer is False. A synchronous condenser, or synchronous compensator, is indeed a synchronous machine without a mechanical driven load and is used for voltage and reactive power support. However, when grid voltage drops, the system should supply or generate reactive power to support voltage recovery. When grid voltage rises, it should absorb reactive power to prevent overvoltage and stabilize the system. The statement in the question says the opposite: it claims reactive power output increases when voltage rises and is absorbed when voltage drops. That contradicts normal reactive-voltage regulation behavior. Therefore, despite the opening definition being mostly correct, the reactive power response described in the statement is incorrect. Reference: ENTSO-E synchronous condenser technical sheet and power-system reactive compensation references.
NEW QUESTION # 91
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