Transformer Oil · BDV Testers
CIE/7000 Series Transformer Oil BDV Tester - 7000 Series
Transformer oil dielectric strength (BDV) tester series - 0–50 kV to 0–120 kV, 8 models. Manual and motorised variants.
CIE® Guarantee
- CIE® Registered Trade Mark
- Calibrated Before Despatch
- 12-Month Warranty
- Made in India
- Custom Ranges Available
About This Instrument
The CIE/7000 Series is a range of oil dielectric strength test sets for breakdown/withstand voltage testing of transformer and circuit breaker insulating oil per IS 6792:1992, spanning eight output-voltage tiers from 0–50 kV (CIE/7050) up to 0–120 kV (CIE/7120). Every model in the series shares the same design: a cast-resin H.V. transformer with graded insulation and the centre point of the H.V. winding grounded, specially designed to withstand frequent sparkover events. A continuously variable autotransformer raises output from zero; zero-start interlocking prevents energising the H.V. circuit unless the regulator is at zero; an interlocked H.T. door cutout means the set cannot be energised with the test chamber open. A memory device retains the breakdown voltage reading after automatic tripping. Metering is analog (96 mm² moving-iron voltmeter, L.T. side, scaled in kV) - digital metering is available at extra cost. Test vessel (oil cell with two brass spheres, 12.5–13 mm diameter, 4 mm or 2.5 mm adjustable gap per IS 6792:1992) is supplied as standard. Every tier is available in manual and motorised (MOT) variants; motorised sets advance voltage at approx. 2 kV/second. Specify the required output voltage tier when ordering - see the full model table below.
Technical Specifications
| Specification | Value |
|---|---|
| Output Voltage Range | 0–50 kV to 0–120 kV (8 models, continuously variable - see table) |
| Capacity Range | 500 VA to 1200 VA (varies by model - see table) |
| Input | 230 V ±10%, 50 Hz, 1 phase A.C. |
| Duty | Intermittent |
| H.V. Winding | Cast-resin, graded insulation, centre point grounded |
| Metering | 96 mm² A.C. moving-iron voltmeter, L.T. side, scaled in kV (analog - not digital standard) |
| Motorised Rate | Approx. 2 kV/second (motorised variant) |
| Test Vessel | Non-absorbent insulating material; two brass spheres 12.5–13 mm dia.; gap 4 mm or 2.5 mm adjustable; per IS 6792:1992 |
| Warranty | 12 months against manufacturing defects only |
CIE/7000 Series - Output Voltage & Capacity
| Output Voltage | Capacity | Manual Model | Motorised Model |
|---|---|---|---|
| 0–50 kV | 500 VA | CIE/7050 | CIE/7050 MOT |
| 0–60 kV | 600 VA | CIE/7060 | CIE/7060 MOT |
| 0–70 kV | 700 VA | CIE/7070 | CIE/7070 MOT |
| 0–75 kV | 750 VA | CIE/7075 | CIE/7075 MOT |
| 0–80 kV | 800 VA | CIE/7080 | CIE/7080 MOT |
| 0–90 kV | 900 VA | CIE/7090 | CIE/7090 MOT |
| 0–100 kV | 1000 VA | CIE/7100 | CIE/7100 MOT |
| 0–120 kV | 1200 VA | CIE/7120 | CIE/7120 MOT |
Input: 230 V, 50 Hz, single phase; intermittent duty.
Any requirement apart from the standard output-voltage tiers (CIE/7050 to CIE/7120) and manual or motorised drive shown above can be built to order.
Additional Options
- Tripping current set point other than standard - at extra cost
- Digital metering (in place of standard analog) - at extra cost
- 2-unit housing - at extra cost
- Double capacity, 20 mA (CIE/7050 to CIE/7080 only) - at extra cost
- Magnetic stirrer - at extra cost
What's Included
- Instruction manual with circuit diagram
- Input supply cable, minimum 2 metres, 3-pin plug
- Test vessel (oil cell) with electrode and gap-setting gauge
Key Applications
- Transformer oil dielectric strength testing before energisation
- Routine oil quality monitoring for distribution and power transformers
- Circuit breaker oil testing
- Power utility and substation maintenance laboratories
12-Month Warranty · Direct After-Sales Support
Every CIE® instrument carries a 12-month warranty against manufacturing defects only. After-sales support is handled directly by CIE - not a distributor network. Non-standard ranges or custom specifications can be manufactured to your requirement.
Interested in the CIE/7000 Series? Get a quote by email.
Email us with your model, quantity, and specification - we respond within one business day.