6kv/11kv/27kv/38kv 50Hz/60Hz Natural Grounding Resistor for Transformer or Grnerator

• Customization: Available
• Application: Power
• Phase: Three
• Model NO.: NGR
• Certification: ISO9001-2000, ISO9001
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: High Frequency
• Specification: 15KV/27KV/38KV, 50HZ/60HZ,
• Trademark: HEMG
• Origin: China
• Production Capacity: 10000

Product Description

NGRGENERATOR MIDDLE POINT RESISTOR PANEL
 
1.TECHABICAL DATA
WHEN THE GENERATORS LOOP HAPPEN THE SINGLE EARTHING,THE CURRENT  WILL BE BIGGER THAN THE RATED CURRENT ,IT WILL MAKE THE EARTHING OVER VOLTAGE IN ARC LIGHITNG,FOR THE IT IS LOWER LEVEL OF GENERATOR 'S WITHSTAND VOLTAGE,INSULATION WILL TO BE EASY TO BE SHATTERED.IF IT MAKE OVER CURRENT  OF EARTHING,THE GENERATOR 'S CORE WILL BE BURNED AND SINTERED. IT IS USUALLY TO SET THE MIDDLE POINT TO EARTH BY HIGH VOLTAGE RESISTOR  TO LIMITE THE ARC LIGHT OVER VOLTAGE,AND TO LOMITED THE CORE OF THE GENERATOR TO BE BURNED AND SINTERED,IN THE SAME TIME,IT WILL IMPORVE THE DELICACY DEGREE OF THE RELAY PROTECTION,EFFECTIVE TO THE TRIP TO MAKE THE LIMITED OF 2.6TIMES OF THE VOLTAGE BETWEEN PHASESES FOR THE OVER VOLTAGE TO LIMIT THE ARC TO BE REBURNED ,AND TO PROTECT THE MAIN INSTRUMENTS   AND LIMITE THE CORE MAGNETISM SYNTONY OVER VOLTAGE,FOR SAFETY RUNING OPF THE GENETATOR.
 2,PRODUCTS CHARACTERISTIC
1,               THE PRODUCTS IS MADE OF EXCELLENT STAINLESS STEEL (Cr20Ni80) OR NON METAL(CHAR COAL VALVE,ZINC VALVE)MAERIAL,IT IS HIGH COINDUCTANCE,HIGH TEMPERATURE COEFFICIENT ,UP TO WITHSTAND 1600ºC,BE ANTI CORRUPTED,GOOD TENACITY,NO CHANGE SHAPE,GOOD STABITITY.
2,THE TRAN SORMER IS DRY TRNAS FORME IN PANBEL,BIG CAPACITOR,HIGH WITHSTAND IMPULSION.
3,REISITOR PANEL IS IN DOOR ,THE BOX IS MADE OF COOL ROLLING  STEEL .
4,IT CAN ADD THE ERATHIGN RECORDER AND TEMEPERTURER ANDHUMID COTOLLER,
3,CONDITION
1,INDOOR,IF OUTDOOR ,PLEASE NOTED.
2,ALTITUDE IS NO MORE 4000M,HIGH ALTIPLANO,PLEASE TELLUS THEALTITUDE .
3,ENTIRONMENT TEMPERATURE:-20ºC~+70ºC,RELATIVE HUMIDITY NO MORE IS 95%
4,AMBIENCE IS WITHOUT BURNING AND BROKE AND CAUSITICITYGAS OR TRANSMIT ELECTRICITY DUST.
5,IT IS USED FOR 48~52Hz(50 Hz),58~62 Hz(60 Hz)SYSTEM.
4,TECHANICAL DATA
6.1 NGR GENERATOR NATURE POIND REISISTOR PANAL TECHANICAL DATA

GENERATOR CAPACITOR (MW)	100/125		200	300		600		900/1000
GENERATOR RATED VOLTAGE(kV)	10.5	13.8	15.75	18	20	20	24	24	27
EXPECED LOOP SINGLE EATHING MAX CAPACITOR CURRENT(A)	4		5	6		8		10
EARTHIHG TRANSFORMER FIRST VOLTAGE(kV)	10.5/	13.8/	15.75/	18/	20/	20/	24/	24/	27/
EARTHING TRANSFORMER SECOND VOLTAGEkV)	0.22		0.22	0.22		0.22		0.22
EARTHING TRANSFORMER CAPACITOR(kVA)	30		30	50		50		63
SECOND SIDE RESISTANCE(Ω)	1.0		0.8	0.5		0.4		0.3
EARTHING PROTECTIVE  SIMPLE VOLTAGE (kV)	0.1		0.1	0.1		0.1		0.1