The T Surge Arrester designed to protect 12 kV class components, including transformers, equipments, cable and accessories from high voltage surges resulting from lightning or switching. It has been designed to be used with the MS12-630 separable t-connector.
Provides fully shielded deadfront arrester protection.
Metal (zinc) Oxide Varistor (MOV) gapless design.
EPDM insulation rubber molded around MOV module.
No minimum phase clearance requirements.
100% electrical tested at factory
Tests conducted in accordance with IEC 60502-4
Partial discharge minimum extinction voltage-15kV
AC 60Hz for 5min(kV crest)-39kV
1.METAL OXIDE RESISTOR ELEMENTS
A two-terminal resistive element, composed of an electronic semiconductor and suitable contacts that has a markedly nonlinear volt-ampere characteristic.
2.SEMICONDUCTING INSERT
Precision molded peroxide cured semiconducting insertprovides corona-free electrostatic shielding of the compression connector.
3.SEMICONDUCTING SHIELD
Precision molded peroxide cured semiconducting shield provides ground shield continuity.
4.INSULATION LAYER
High quality peroxide cured EPDM Insulation is mixed andformulated in-house for complete control of rubber characteristics.
5.STUD
Zinc plated, threaded steel stud.
6.CONDUCTIVE RUBBER CAP
Provide a complete grounding system.
7. INSULATING PLUG
Molded epox y insul a ting plug provides excellent electrical, thermal and mechanical reliability.
8.DRAIN WIRE TAB
Drain wire tabs provide a convenient point to connect drain wire to ensure grounding of the connector shield.
9.STEEL CAP
portion of an arrester in which each end of the unit is terminated with an electrode which is exposed to the external environment.
- MS
- 12kV
- DRTSA
- X(Duty Voltage Rating)
- Y(Residual voltage)
| Arrester code | Duty Voltage Rating(kV) | MCOV | Residual voltage (Lightning) | |
|---|---|---|---|---|
| A | B | |||
| Station | Circuits | |||
| A | 5 | 4 | 13.5 | 15 |
| B | 10 | 8 | 27 | 30 |
| C | 12 | 9.6 | 32.4 | 35.8 |
| D | 15 | 12 | 40.5 | 45.6 |
| E | 17 | 13.6 | 45 | 50 |
