Ground Fault Neutralizer

1. Overview

MRD-XHZ Ground Fault Neutralizer employs standard industrial computer system, bus-organization, multilayer PCBand full-color LCD screen to provide system with stable operation, visual display,strong anti-interference capability, perfect parameter settings and informationquery function.

2. Unit configuration 

2.1.Grounding Transformer

2.2.Arc suppression coil withadjustable turns

2.3.Load switch

2.4.Micro-computer controller

2.5.Thyristor(SCR) and triggingdevice

2.6.Disconnector

2.7.Damping resistor

2.8.Voltage transformer

2.9.Zinc oxide lightning rod

2.10.High-voltage current limitingfuse

2.11.Cabinet( indoor or outdoor)

ntrol panel

2.13. Small current earthing wireline

3. Working conditions

3.1.Ambient Temp: -15℃～+45℃

3.2.RelativeHumidity: Less than 95%

3.3.Altitude:less than 2000m (if excess, please specially indicate)

3.4.Nocorrosive gas around the site and no conductive dust

3.5.Nosever shocked movement around the site

3.6.Micro-computer controllerscreen is to be installed in master control of the station. Groundingtransformer, ASC device and damping resistor are to be installed outdoor or indoorwith good ventilation

4. Ordering instructions

4.1.System voltage grade: 6KV,10KV, 35KV

4.2.Arc Suppression Coil capacity

4.3.The capacity of arc suppressioncoil is determined according to the size of the capacitive current under thesingle-phase grounding fault and should have a certain margin

4.4.The grounding transformercapacity

4.5. the quantity of zero sequencecurrent transformer