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Product introduction
Grounding transformers are commonly used to provide an artificial loaded neutral point for the ungrounded point of the system for system grounding. The neutral point of this product is connected to the arc suppression coil or resistor, and then grounded. A secondary winding with a continuous rated capacity can be used as a power source for the station.
Product use
Substations, user distribution stations and other 35kV and below power systems.
Main technical parameters
●Rated capacity:100 ~ 5500kVA；
●Rated voltage: 35kVand below；
●Insulation class: Class A；
●Standard basis: GB1094.6；
●Ambient temperature: -25 ~ +40℃；
●The relative air temperature: the daily average does not exceed 95%, the monthly average does not exceed 90%；
●Altitude; Less than 1000m；
● The ground inclination is not more than 3, with good grounding network；
●Workplace: no fire, explosion risk, no conductive dust, no violent vibration, should leave enough space required by the device.
10kV series oil-immersed grounding transformer technical parameters table
Type | Connection group | tapping range | Zero-sequence Reactance (Ω / phase) | Mounting hole (transverse × vertical)4×18 | Body size(length × width×height)mm | Body weight (kg) |
DKS-150/10.5 | Zn | 10.5 | 19 | 550×590 | 1150×650×896 | 500 |
DKS-200/10.5 | Zn | 10.5 | 14 | 550×640 | 1150×700×1113 | 760 |
DKS-200/10.5-100/0.4 | Znyn11 | 10.5±2×2.5%/0.4 | 14 | 550×640 | 1150×700×1113 | 820 |
DKS-315/10.5 | Zn | 10.5 | 9 | 550×690 | 1230×750×1176 | 910 |
DKS-330/10.5-150/0.4 | Znyn11 | 10.5±2×2.5%/0.4 | 9 | 550×690 | 1230×750×1206 | 950 |
DKS-400/10.5 | Zn | 10.5 | 6 | 550×690 | 1250×750×1181 | 1050 |
DKS-400/10.5-100/0.4 | Znyn11 | 10.5±2×2.5%/0.4 | 6 | 550×690 | 1250×750×1211 | 1100 |
DKS-500/10.5 | Zn | 10.5 | 6 | 550×690 | 1300×750×1181 | 1100 |
DKS-500/10.5-100/0.4 | Znyn11 | 10.5±2×2.5%/0.4 | 6 | 550×690 | 1300×750×1250 | 1150 |
DKS-630/10.5 | Zn | 10.5 | 4 | 550×790 | 1350×850×1250 | 1350 |
DKS-630/10.5-200/0.4 | Znyn11 | 10.5+2×2.5%/0.4 | 4 | 550×790 | 1350×850×1286 | 1400 |
DKS-800/10.5 | Zn | 10.5 | 4 | 550×790 | 1400×850×1295 | 1460 |
DKS-800/10.5-100/0.4 | Znyn11 | 10.5+2×2.5%/0.4 | 4 | 550×790 | 1400×850×1304 | 1500 |
DKS-1000/10.5 | Zn | 10.5 | 3 | 550×790 | 1450×850×1408 | 1820 |
DKS-1000/10.5-100/0.4 | Znyn11 | 10.5±2×2.5%/0.4 | 3 | 550×790 | 1450×850×1450 | 1900 |
Note: The dimensions are for reference only and are subject to the actual drawings and dimensions provided.
Technical parameter table of 35kV series oil-immersed grounding transformer
Type | Connection group | lap range | Zero-sequence Reactance (Ω / phase) | gauge | Body size (length×width×height mm) | Body weigh (kg) |
DKS-400/35 | Znyn11 | 35±2×2.5% | 144 | 1070×1080 | 2100×1200×1465 | 2000 |
DKS-500/35 | Znyn11 | 35±2×2.5% | 123 | 1070×1080 | 2140×1200×1505 | 2100 |
DKS-630/35 | Zn | 35±2×2.5% | 119 | 1070×1080 | 2220×1200×1588 | 2520 |
DKS-630/35-250/0.4 | Znyn11 | 35±2×2.5%/0.4 | 89 | 1070×1080 | 2240×1200×1680 | 2700 |
DKS-700/35 | Znyn11 | 35±2×2.5% | 98 | 1070×1080 | 2240×1200×1635 | 2600 |
DKS-700/35-315/0.4 | Znyn11 | 35±2×2.5%/0.4 | 79 | 1070×1080 | 2350×1200×1555 | 3050 |
DKS-800/35-250/0.4 | Znyn11 | 35±2×2.5%/0.4 | 85 | 1070×1080 | 2240×1200×1805 | 2900 |
DKS-1000/35-250/0.4 | Znyn11 | 35±2×2.5%/0.4 | 80 | 1070×1080 | 2250×1200×1860 | 3050 |
DKS-1000/35-315/0.4 | Znyn11 | 35±2×2.5%/0.4 | 75 | 1070×1080 | 2420×1200×1795 | 3350 |
DKS-1250/35-250/0.4 | Znyn11 | 35±2×2.5%/0.4 | 82 | 1070×1080 | 2300×1200×1935 | 3500 |
DKS-1700/35-250/0.4 | Znyn11 | 35±2×2.5%/0.4 | 68 | 1070×1080 | 2520×1200×1945 | 4150 |
DKS-2000/35 | Zn | 35±2×2.5% | 54 | 1070×1080 | 2530×1200×1945 | 4450 |
DKS-2400/35-400/0.4 | Znyn11 | 35±2×2.5%/0.4 | 44 | 1070×1130 | 2600×1250×2007 | 5000 |
DKS-2500/35 | Zn | 35±2×2.5% | 40 | 1070×1130 | 2600×1250×2007 | 5100 |
Note: The dimensions are for reference only and are subject to the actual drawings and dimensions provided.
Product introduction
Grounding transformers are commonly used to provide an artificial loaded neutral point for the ungrounded point of the system for system grounding. The neutral point of this product is connected to the arc suppression coil or resistor, and then grounded. A secondary winding with a continuous rated capacity can be used as a power source for the station.
Product use
Substations, user distribution stations and other 35kV and below power systems.
Main technical parameters
●Rated capacity:100 ~ 5500kVA；
●Rated voltage: 35kVand below；
●Insulation class: Class A；
●Standard basis: GB1094.6；
●Ambient temperature: -25 ~ +40℃；
●The relative air temperature: the daily average does not exceed 95%, the monthly average does not exceed 90%；
●Altitude; Less than 1000m；
● The ground inclination is not more than 3, with good grounding network；
●Workplace: no fire, explosion risk, no conductive dust, no violent vibration, should leave enough space required by the device.
10kV series oil-immersed grounding transformer technical parameters table
Type | Connection group | tapping range | Zero-sequence Reactance (Ω / phase) | Mounting hole (transverse × vertical)4×18 | Body size(length × width×height)mm | Body weight (kg) |
DKS-150/10.5 | Zn | 10.5 | 19 | 550×590 | 1150×650×896 | 500 |
DKS-200/10.5 | Zn | 10.5 | 14 | 550×640 | 1150×700×1113 | 760 |
DKS-200/10.5-100/0.4 | Znyn11 | 10.5±2×2.5%/0.4 | 14 | 550×640 | 1150×700×1113 | 820 |
DKS-315/10.5 | Zn | 10.5 | 9 | 550×690 | 1230×750×1176 | 910 |
DKS-330/10.5-150/0.4 | Znyn11 | 10.5±2×2.5%/0.4 | 9 | 550×690 | 1230×750×1206 | 950 |
DKS-400/10.5 | Zn | 10.5 | 6 | 550×690 | 1250×750×1181 | 1050 |
DKS-400/10.5-100/0.4 | Znyn11 | 10.5±2×2.5%/0.4 | 6 | 550×690 | 1250×750×1211 | 1100 |
DKS-500/10.5 | Zn | 10.5 | 6 | 550×690 | 1300×750×1181 | 1100 |
DKS-500/10.5-100/0.4 | Znyn11 | 10.5±2×2.5%/0.4 | 6 | 550×690 | 1300×750×1250 | 1150 |
DKS-630/10.5 | Zn | 10.5 | 4 | 550×790 | 1350×850×1250 | 1350 |
DKS-630/10.5-200/0.4 | Znyn11 | 10.5+2×2.5%/0.4 | 4 | 550×790 | 1350×850×1286 | 1400 |
DKS-800/10.5 | Zn | 10.5 | 4 | 550×790 | 1400×850×1295 | 1460 |
DKS-800/10.5-100/0.4 | Znyn11 | 10.5+2×2.5%/0.4 | 4 | 550×790 | 1400×850×1304 | 1500 |
DKS-1000/10.5 | Zn | 10.5 | 3 | 550×790 | 1450×850×1408 | 1820 |
DKS-1000/10.5-100/0.4 | Znyn11 | 10.5±2×2.5%/0.4 | 3 | 550×790 | 1450×850×1450 | 1900 |
Note: The dimensions are for reference only and are subject to the actual drawings and dimensions provided.
Technical parameter table of 35kV series oil-immersed grounding transformer
Type | Connection group | lap range | Zero-sequence Reactance (Ω / phase) | gauge | Body size (length×width×height mm) | Body weigh (kg) |
DKS-400/35 | Znyn11 | 35±2×2.5% | 144 | 1070×1080 | 2100×1200×1465 | 2000 |
DKS-500/35 | Znyn11 | 35±2×2.5% | 123 | 1070×1080 | 2140×1200×1505 | 2100 |
DKS-630/35 | Zn | 35±2×2.5% | 119 | 1070×1080 | 2220×1200×1588 | 2520 |
DKS-630/35-250/0.4 | Znyn11 | 35±2×2.5%/0.4 | 89 | 1070×1080 | 2240×1200×1680 | 2700 |
DKS-700/35 | Znyn11 | 35±2×2.5% | 98 | 1070×1080 | 2240×1200×1635 | 2600 |
DKS-700/35-315/0.4 | Znyn11 | 35±2×2.5%/0.4 | 79 | 1070×1080 | 2350×1200×1555 | 3050 |
DKS-800/35-250/0.4 | Znyn11 | 35±2×2.5%/0.4 | 85 | 1070×1080 | 2240×1200×1805 | 2900 |
DKS-1000/35-250/0.4 | Znyn11 | 35±2×2.5%/0.4 | 80 | 1070×1080 | 2250×1200×1860 | 3050 |
DKS-1000/35-315/0.4 | Znyn11 | 35±2×2.5%/0.4 | 75 | 1070×1080 | 2420×1200×1795 | 3350 |
DKS-1250/35-250/0.4 | Znyn11 | 35±2×2.5%/0.4 | 82 | 1070×1080 | 2300×1200×1935 | 3500 |
DKS-1700/35-250/0.4 | Znyn11 | 35±2×2.5%/0.4 | 68 | 1070×1080 | 2520×1200×1945 | 4150 |
DKS-2000/35 | Zn | 35±2×2.5% | 54 | 1070×1080 | 2530×1200×1945 | 4450 |
DKS-2400/35-400/0.4 | Znyn11 | 35±2×2.5%/0.4 | 44 | 1070×1130 | 2600×1250×2007 | 5000 |
DKS-2500/35 | Zn | 35±2×2.5% | 40 | 1070×1130 | 2600×1250×2007 | 5100 |
Note: The dimensions are for reference only and are subject to the actual drawings and dimensions provided.
