27 Kv-33 Kv Quallity Assurance Surge Arrester for High Voltage

Model Meaning:

YH 10 W – YY – SC Z – OPTIONS
YH —— Y-indicates porcelain housing, YH-indicates polymer housing
10  —— 10kA-Discharge current
W   —— W-indicates gapless
YY  —— YY-rated voltage (kv)
SC Z —— SC-applicable for station class only i.e. ‘Z"-2, 3 or 4
OPTIONS  —— 1. IBDD: ground lead disconnecting device Integrated in insulating bracket
                           2. LBO: I-bracket for mounting c/w bolts, Washers and lead for live terminal
                           3. CR: corona ring applicable to systenVoltages from 100kv and upwards
                           4. IBP: insulating base plate
                           5. BP-base plate only applicable from 40kv Upwards
                           6. ST12-st-m12 bolt c/w two nuts, washers & spring washer
                           7. ST26-st-stem type 26 Φ x 100mm top contact
                           8. ST38-st-stem type 38 Φ x 125mm top contact

When Ordering Voltages Above 100Kv The Following Are STD
1. Corona Rings are STD component for voltages ranging from 110 kV and above
2. Base Plates with insulating bases are to be only ordered or used when coupling them to Surge Counter applications.
3. Base plates are STD supply for voltages ranging from 33 kV and above

Working Condition
1. Ambient air temperature: 40ºC ~+60.
2. Altitude: 3000m;
3. Frequency 48Hz-62Hz
4. Power frequency voltage applied between terminals of surge arrester must not exceed continuous operating voltage of surge arrester
5. Earthquake (Seismic) intensity is less than 8 degree
6. Max Wind speed is 35m/s;