| Model: | MRD-FD |
|---|---|
| Brand: | mingrui |
| Origin: | - |
| Category: | Electronics & Electricity / Power Supply & Distribution / Power Distribution Cabinet |
| Label: | Generator Resistor , Resistor , Neutral Resistor |
| Price: |
US $5000
/ set
|
| Min. Order: | 1 set |
| Last Online:04 Jun, 2014 |
MRD-FD Neutral Grounding Resistor for Generator
Preface
1. Selection of Generator Neutral Grounding Mode
Generator is the driving force in power system, which must have the right ability to respond to sudden failure in operation, to which the mode of generator neutral grounding is closely related.
-solid grounding
-Neutral-point grounding via low-resistance
-Neutral-point ungrounded
-Neutral-point grounding via arc-suppression coil
-Neutral-point grounding via high resistance
Fault Current Allowable Value of the Winding.
Single-Phase Grounding of Generator Stator
|
Generator Nominal Voltage(kV) |
Generator Nominal Capacity(MW) |
Allowable Fault Current Value(A) |
|
|
6.3 |
≤50 |
4 |
|
|
10.5 |
Steam turbine generators |
50-100 |
3 |
|
Water turbine generator |
10-100 |
||
|
13.8~15.75
|
Steam turbine generators |
125-200 |
2
|
|
Water turbine generator |
40-225 |
||
|
18~20
|
300-600 |
1 |
|
Brief Introduction of Product
1. Scope of Application
MRD-FD type neutral ground resistor cabinet is complete equipment specially used for generators in power plant which adopts high-resistance grounding for neutral. The voltage grade for generator mainly ranges from 6kv to 20kv. When one point of the stator grounds, the device is able to limit the grounding current at a reasonable value, and effectively restraint arc flash transient overvoltage associated with single-phase grounding.
Operation Environment
| Payment Terms: | T/T L/C |
|---|---|
