TGE surge arresters are the primary protection against atmospheric and switching over-voltages. They are generally connected in parallel with the equipment to be protected to divert the surge current. The active elements (Metal-oxide Varistors) of TGE surge arresters are manufactured using a highly non-linear ceramic varsistor material, composed primarily of zinc oxide mixed with other metal oxides and sintered together. It has passed the full series of type tests conducted by KEMA laboratory and fully meets the technical requirements of the latest version of IEC6009-4:2014、IEEE Std62.11:2020. It has good protection level, strong charge transfer ability, excellent pollution resistance, and safe short-circuit performance.
| Arrester classification as per IEC60099-4: Edition 3.0 2014-06 | DH Distribution |
| Rated voltages (Ur) | 3～45kVrms |
| Max. Continuous operating voltage Uc | 2.4～36kVrms |
| Nominal discharge current (In) | 10kAp |
| Repetitive charge transfer rating, Qrs | 0.4C |
| Thermal charge transfer rating, Qth | 1.1C |
| High current impulse 4/ 10 μs | 100 kA peak |
| Short-circuit/ Pressure relief capability | 20 kArms(sym) |
| TOV capability (With prior duty) | 1.2Ur/0.1s |
| 1.15Ur/1.1s | |
| 1.05Ur/10.1s | |
| 0.95Ur/1000s | |
| Mechanical strength | |
| Specified long-term load (SLL) | 230N·m |
| Specified short-term load (SSL) | 300N·m |
| Blocks size | φ36mm |
| Service conditions: | |
| Ambient temperature | -40°C to +40°C |
| Design altitude max. | 1000m |
| Frequency | 48～62 Hz |
Note: It also meets the requirements of IEC60099-4: Edition 3.0 2014-06.
| Type | Rated voltage | Max. continuous | Max. residual voltage with current wave | Fig. | ||||
| operating voltage | 30/60 | 1/5 | 8/20 | |||||
| Ur | Uc | 500A | 10kA | 5kA | 10kA | 20kA | ||
| kVrms | kVrms | kVpeak | ||||||
| TGE-MOA-3A | 3 | 2.4 | 6.6 | 10.3 | 7.7 | 8.3 | 9.3 | |
| TGE-MOA-6A | 6 | 4.8 | 13.2 | 19 | 15.3 | 16.5 | 18.6 | |
| TGE-MOA-9A | 9 | 7.2 | 19.8 | 28.4 | 23 | 24.8 | 28 | |
| TGE-MOA-12A | 12 | 9.6 | 26.4 | 37.8 | 30.7 | 33 | 37.3 | |
| TGE-MOA-15A | 15 | 12 | 33 | 47.3 | 38.4 | 41.3 | 46.6 | |
| TGE-MOA-18A | 18 | 14.4 | 39.6 | 56.7 | 46 | 49.5 | 55.9 | |
| TGE-MOA-21A | 21 | 16.8 | 46.2 | 66.2 | 53.7 | 57.8 | 65.3 | |
| TGE-MOA-24A | 24 | 19.2 | 52.8 | 75.6 | 61.4 | 66 | 74.6 | |
| TGE-MOA-27A | 27 | 21.6 | 59.4 | 85.1 | 69.1 | 74.3 | 83.9 | |
| TGE-MOA-30A | 30 | 24 | 66 | 94.5 | 76.7 | 82.5 | 93.2 | |
| TGE-MOA-33A | 33 | 26.4 | 72.6 | 104 | 84.4 | 90.8 | 102.5 | |
| TGE-MOA-36A | 36 | 28.8 | 79.2 | 113.4 | 92.1 | 99 | 111.9 | |
| TGE-MOA-39A | 39 | 31.2 | 85.8 | 122.9 | 99.7 | 107.3 | 121.2 | |
| TGE-MOA-42A | 42 | 33.6 | 92.4 | 132.3 | 107.4 | 115.5 | 130.5 | |
| TGE-MOA-45A | 45 | 36 | 99 | 141.8 | 115.1 | 123.8 | 139.8 | |
| Fig | Type | Creepage distance | Insulation of housings | Dimensions | |||||
| 1.2/50μs | 50Hz | A | B | C | D | E | |||
| mm | kVpeak | kVrms | mm | ||||||
| TGE-MOA-3A | 314 | 74 | 31 | 206 | 118 | ||||
| TGE-MOA-6A | 314 | 74 | 31 | 206 | 118 | ||||
| TGE-MOA-9A | 393 | 87 | 38 | 228 | 140 | ||||
| TGE-MOA-12A | 531 | 108 | 48 | 268 | 180 | ||||
| TGE-MOA-15A | 531 | 108 | 48 | 268 | 180 | ||||
| TGE-MOA-18A | 669 | 129 | 59 | 308 | 220 | ||||
| TGE-MOA-21A | 669 | 129 | 59 | 308 | 220 | ||||
| TGE-MOA-24A | 806 | 150 | 70 | 348 | 260 | Φ49±1 | Φ113±2 | Φ95±2 | |
| TGE-MOA-27A | 806 | 150 | 70 | 348 | 260 | ||||
| TGE-MOA-30A | 806 | 150 | 70 | 348 | 260 | ||||
| TGE-MOA-33A | 1083 | 192 | 92 | 428 | 340 | ||||
| TGE-MOA-36A | 1083 | 192 | 92 | 428 | 340 | ||||
| TGE-MOA-39A | 1359 | 234 | 114 | 508 | 420 | ||||
| TGE-MOA-42A | 1359 | 234 | 114 | 508 | 420 | ||||
| TGE-MOA-45A | 1359 | 234 | 114 | 508 | 420 | ||||
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