Resolution : Cx multiplying Factor Resolution

Null Detector
Built in battery operated electronic Null Detector. This type of Null Detector is most suitable for balancing of the Bridge. It gives high sensitivity and accuracy for most of the applications and it is very user friendly. Phase sensitivity Null Detector can be given in place of electronic Null Detector on request. For higher sensitivity and accuracy. oscillographic null detector model MK-1 for critical operation is also available.

Interface Suppression
The C & Tan d Bridge has been specially shielded with u metal sheets to avoid the effect of external interferences. This makes the measurement accurate in both indoor as well as out door applications particularly in Switch yards. Phase reversal switch provided in the H.V. Power Supply effectively cancels interference/pick up by the object under test in energised environment. For situation where the induction is excessive, and cannot be cancelled by phase reversal switch a separate three level interference suppression unit can also be given with separate C & Tan d adjustments.

Protection :
The Bridge is provided with built in high voltage protection devices which protect the Bridge and operator against failure of test object or standard capacitor.

Size : L=345, B=370, H=190 mm
Weight : <15 Kg.

(The H.V. power supply with higher power capacity upto 15 KVA or with a tap at lower voltage for higher current is also available).
 

Switch for three different types measurement
1) UST - Ungrounded Specimen test - 3 combinations
This mode is used when the object under test is not grounded. This test provides most accurate results.
2) GST - Grounded Specimen test
This mode is used when the object under test is permanently grounded. This test is used more often in outdoor installations, power systems etc.
3) GSTg - Grounded specimen test with guard. 3 combinations.
This mode is used for measuring the stray capacitances and separating it from basic measurement in GST mode.
 
Indication : Two 3½ digit digital panel meters one for voltage indication with 19.99 KV full scale and other for current indication.

Safety Features :

• Zero start control
• Open ground indication lamp with double grounded connection External
  interlock
• HT cut off on overload
• HT ON & Supply ON indication
• All operating controls at earth potential.
• Necessary terminals & sockets
• For connection to MLS-11D M

Power Required : 230 VAC ± 10%, 50 Hz
Size : 510 x 350 x 415 mm ± 10mm
Standard Capacitor : Standard Capacitor is compressed SF6 gas filled type and is built into HV power supply.
Capacitance : 100 pF ± 5%, actual value is
indicated on capacitor.
Tan : Less than 0.00001
Dielectric : SF6
Test Voltage : upto 12 KV RMS.
Max. Voltage (1 minute) : 12 KV RMS.

Compressed Gas Standard Capacitor is a fixed capacitor used as capacitance standard in Bridge circuit for precision measurement of Capacitance and Tan d of high voltage test objects.

The main feature of these capacitors is negligible dissipation factor ( Tan d ) The electrodes are made of polished metal and enclosed in a suitable housing for protection against dust and moisture. The compressed gas capacitor is filled with Sulphur Hexafluoride (SF6 ) under moderate pressure

For Power Industries Sivananda Electronics also offers :
High Voltage Insulation Testers upto 5kv (Solid State), Compact C and Tan d Bridge (30V/80 Hz) Oil Test System, Resonant Power Supply, Partial Discharge Equipment and Surge Testers, Transformer winding resistance meters and Transformer Ratio Meters .