🔺منظور از مشخصات زیر که بر روی کلید درج شده است، چیست؟
Ui
Uimp
Ue
Icu
Ics
Ir
Im
CAT A
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Ui
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Ir
Im
CAT A
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🔺تعداد 27 عدد کلید مینیاتوری به صورت بالا داخل یک تابلو جانمایی شده است، آیا نیاز به در نظر گرفتن ضریب همجواری برای این کلیدها میباشد؟ در صورت مثبت بودن پاسخ مقدار آن را نیز ذکر کنید
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⭕️6 Adjustable Tripping Settings of a Circuit Breaker You MUST Understand
1️⃣ Continuous Amps (Ir)
🔺Continuous Amps (Ir) varies the level of current the circuit breaker will carry without tripping. Ir is a percentage of the circuit breaker’s nominal rating (In). Continuous amps can be adjusted from 20 to 100 percent of the circuit breaker’s nominal rating.
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1️⃣ Continuous Amps (Ir)
🔺Continuous Amps (Ir) varies the level of current the circuit breaker will carry without tripping. Ir is a percentage of the circuit breaker’s nominal rating (In). Continuous amps can be adjusted from 20 to 100 percent of the circuit breaker’s nominal rating.
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⭕️6 Adjustable Tripping Settings of a Circuit Breaker You MUST Understand
2️⃣ Long-Time Delay
🔺Long-time delay causes the breaker to wait a certain amount of time to allow temporary inrush currents, such as those encountered when starting a motor, to pass without tripping.
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2️⃣ Long-Time Delay
🔺Long-time delay causes the breaker to wait a certain amount of time to allow temporary inrush currents, such as those encountered when starting a motor, to pass without tripping.
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⭕️6 Adjustable Tripping Settings of a Circuit Breaker You MUST Understand
3️⃣ Short-Time Pickup
🔺Short-time pickup is used for selective tripping. The short-time pickup function determines the amount of current the breaker will carry for a short period of time, allowing downstream protective devices to clear short-circuits without tripping the upstream device.
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3️⃣ Short-Time Pickup
🔺Short-time pickup is used for selective tripping. The short-time pickup function determines the amount of current the breaker will carry for a short period of time, allowing downstream protective devices to clear short-circuits without tripping the upstream device.
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⭕️6 Adjustable Tripping Settings of a Circuit Breaker You MUST Understand
4️⃣ Short-Time Delay
🔺Short-time delay, used in conjunction with short-time pickup, controls the time involved in postponing a short-time pickup trip. This allows better coordination with downstream thermal-magnetic circuit breakers and fuses. A fixed instantaneous trip point of 10,000 amps trips the breaker automatically and overrides any pre-programmed instructions.
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4️⃣ Short-Time Delay
🔺Short-time delay, used in conjunction with short-time pickup, controls the time involved in postponing a short-time pickup trip. This allows better coordination with downstream thermal-magnetic circuit breakers and fuses. A fixed instantaneous trip point of 10,000 amps trips the breaker automatically and overrides any pre-programmed instructions.
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⭕️6 Adjustable Tripping Settings of a Circuit Breaker You MUST Understand
5️⃣ Instantaneous Pickup
🔺Instantaneous pickup is used to trip the circuit breaker with no intentional delay at any current between 2 and 40 times the breaker’s continuous ampere setting (Ir).
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5️⃣ Instantaneous Pickup
🔺Instantaneous pickup is used to trip the circuit breaker with no intentional delay at any current between 2 and 40 times the breaker’s continuous ampere setting (Ir).
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⭕️6 Adjustable Tripping Settings of a Circuit Breaker You MUST Understand
6️⃣ Ground Fault Pickup
🔺Ground fault pickup controls the amount of ground fault current that will cause the breaker to interrupt the circuit. The adjustment can be set from 20 to 70% of the maximum breaker rating.
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6️⃣ Ground Fault Pickup
🔺Ground fault pickup controls the amount of ground fault current that will cause the breaker to interrupt the circuit. The adjustment can be set from 20 to 70% of the maximum breaker rating.
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📌بازرسی دورهای و نظارت بر تاسیسات برقی
🔺بررسی برقگیرهای حفاظتی و سیستم اعلام حریق
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🔺بررسی برقگیرهای حفاظتی و سیستم اعلام حریق
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📌بازرسی دورهای و نظارت بر تاسیسات برقی
🔺بررسی برقگیرهای حفاظتی و سیستم اعلام حریق
@AminGashti
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🔺بررسی برقگیرهای حفاظتی و سیستم اعلام حریق
@AminGashti
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📌 ◾#همبندی_اصلی 🔸️اجرای همبندی اصلی در #فونداسیون با استفاده از #هادی_مسی ▫️#earthing ▫️#grounding ▫️#bonding ▫️#shealding