南澳電氣NAZJ6直流系統接地故障測試儀是我公司自成立以來開發出的直流系統接地故障測試儀升級換代產品，用于在不斷電情況下查找發電廠、變電站直流系統接地點的準確位置。各種類型的接地故障，均能迅速地查找出接地點，準確率達到100％。本裝置以系統安全為要前提，按行業標準的zui高要求，以可靠的低頻信號方式進行檢測，

 南澳電氣（武漢）有限公司（簡稱“南澳電氣”)，是國電網武漢高壓研究所改制后成立的高電壓輸變電檢測設備的高新骨干企業，主要從事電力儀器儀表、交直流分壓器、互感器類測試設備、高壓耐壓設備、峰值電壓表、超聲局放定位系統、工頻信號發生器、沖擊電壓電流發生器 、變壓器類試驗設備、繼電保護測試儀、SF6及開關類檢測設備、局部放電超聲檢測系統、避雷器測試設備、環境人工氣候模擬實驗裝置、電能表校驗設備、蓄電池檢測儀等產品的研發。

NAZJ6 DC System Earth Fault Detector    南澳電氣NAZJ6直流系統接地故障測試儀

產品簡介 

南澳電氣NAZJ6直流系統接地故障測試儀是新一代直流接地故障測試儀。NAZJ6便攜式直流系統接地故障測試儀，是我公司自成立以來開發出的直流系統接地故障測試儀升級換代產品，該系列產品已在現場的大量應用中獲得大的好評，已經成為成功的產品，廣泛應用于外多個市場。本裝置以系統安全為要前提，按行業標準的zui高要求，以可靠的低頻信號方式進行檢測，并在現場進行了大量的實際應用，對系統無任何影響。它能夠適用于任何電壓等級的直流系統，配備了的檢測鉗表，通過對多種信號的處理大大提高了檢測范圍與抗干擾能力；采用了的算法和的模糊控制計算理論，將被檢測緣支路的程度以數值的形式表示出來，充分體現了人工智能的優越性；對于接地點位置的斷定，它們更是擁有準確的判斷力，每次檢測都能夠指出接地點位置及方向。

南澳電氣NAZJ6直流系統接地故障測試儀以系統安全為要前提，按行業標準的zui高要求，以可靠的低頻信號方式進行檢測，并在現場進行了大量的實際應用，對系統無任何影響。

發電廠、變電站的直流系統為控制、保護、信號和自動裝置提供電源，直流系統的安全連續運行對保證發供電有著大的重要性。由于直流系統為浮空制的不接地系統，如果發生兩點接地，就可能引起上述裝置誤動、拒動，從而造成重大事故。因此當發生一點接地時，就應在保證直流系統正常供電的同時準確迅速地探測出接地點，排除接地故障，從而避免兩點接地可能帶來的危害。

用于在不斷電情況下查找發電廠、變電站直流系統接地點的準確位置。各種類型的接地故障，均能迅速地查找出接地點，準確率達到100％。

南澳電氣NAZJ6直流系統接地故障測試儀產品別名

直流系統接地故障測試儀，直流接地故障測試儀，直流系統故障測試儀

南澳電氣NAZJ6直流系統接地故障測試儀產品特性 

1、使用簡單。NAZJ6直流系統接地故障測試儀只需打開電源開關就可直接使用，無需別的按鍵操作。

2、安全可靠。NAZJ6直流系統接地故障測試儀無需停浮充電機及其它一切電源，對直流系統沒有任何影響。

3、適用電壓等級多。直流系統220V、110V、48V、24V都可以使用。

4、適用范圍廣。任何類型電廠、變電站、煤礦、化工廠等供電部門都可使用。

5、攜帶方便，信號接收器自帶電池，無需外接電源，可以隨身攜帶到任何地方查找接地點。

6、直流系統不斷電查找接地點，不影響系統正常工作。

7、抗干擾能力強，克服了系統分布電容的影響。

8、智能化充電管理，減少充電時間，延長電池壽命。

Product introduction

NAZJ6 DC System Earth Fault Detector applies to all DC system in any voltage class ,equipped with high-precision tester ,expanded the tested range and strengthened the anti-interference ability by processing many kinds of signal. Adopted excellent method of calculation and advanced Fuzzy control calculation theory ,show us the advancement of the measured circuit branch by numerical value, which reflect the superiority of artificial intelligence sufficiently. Correctly detect the position of the earthing contact each time.

Also called name

Earth fault detector, DC system earth fault detector

The Characteristics of the products

1. Easy to use, customers can directly operate only need turn on the power switch.

2. Safe and reliable, do not need power off the charger or other power source, without effects to DC system.

3. Applies to various voltage class, DC system 220V, 110V, 48V, 24V.

4. Wide range of application, any power plant, transformer substation, colliery, chemical plant and others power supply departments.

5.Easy to carry, the signal receiver equipped with battery, do not need external power source.

6.DC system do not need power off when searching the earthing contact, do not affect the normal work of the system.

7. Strong anti-jamming ability, without the effects by system distributed capacitance.

8.Intelligent charge Management, shorten the charging time, lengthen the battery life.

The parameters of the products

1, The signal generator

◆output signal frequency: 2.5Hz

◆ Signal-load output voltage: ± 20V ± 5%

◆ signal voltage amplitude error: <5%

◆ signal Short circuit output current: ≤ 80mA

◆ output impact resistance: 400V DC shock

◆ Power supply voltage: AC220V ± 10%

◆ voltage frequency: 50Hz ± 5%

◆ Input fuse: 200mA

◆ Maximum power: 3W

◆ Volume: 300mm × 270mm × 200mm

2, The signal receiver

◆ signal current detection sensitivity: 0.5mA

◆ signal generator impedanceW: 40K

◆ Maximum output current: 2.5 mA

◆ Receiver Display: Digital 0-19

◆ Volume: 210mm × 100mm × 32mm

 A jaw size: Φ50mm

 B jaw size: Φ7mm × 9mm

3, The entire machine  

◆ detecting the maximum ground resistance: 300KΩ

◆ detect maximum capacitance: 20μF

◆ earth resistance measurement accuracy :0-4 .5 KΩ error ≤ 0.5KΩ

◆Grounding capacitance measurement range：3-60uF

◆Grounding capacitance measurement accuracy: 3-10uF error≤1uF

Product precautions information
1 The unit is must carefully handled when transportation, operation and storage, fall or strong vibration, etc. is not allowed.
2. Signal source shall be added to the bus fault and ground.
3. The calipers of NAZJ6 DC System Earth Fault Detector only work for AC circuit, not DC circuit.
4 When all branches have no grounding, should pay attention to whether the power supply part of the grounding point, such as batteries, chargers and other parts.
5 The battery life can be extend if turn off the clamp and the signal receiver when not in use during the detection process.
6 Replace the battery when signal receiver power is low.
7 In order to keep the accuracy, do not hold clamp using your hand durning the detection process, should be allowed to clamp in a quiescent state.

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