DB-8000 Series
Circuit breaker mechanical characteristics analyser
A portable, professional-grade analyser for the mechanical characteristics of high-voltage switchgear — circuit breakers, load switches, GIS combined apparatus, vacuum switches and oil switches. It measures contact travel, operating velocity, opening and closing time, and contact resistance, and derives the full set of mechanical parameters from a single operation.
At a glance
channels
channels
test records
output supply
What it measures
The DB-8000 records the travel–time curve of an opening or closing operation and derives the complete mechanical parameter set from it, alongside direct measurement of contact resistance and coil current.
- Timing. Opening time, closing time, close–open time, and phase and interrupter discrepancy.
- Travel. Total travel, contact stroke, overtravel and rebound amplitude.
- Velocity. Mean opening and closing velocity computed over the defined segment of the stroke, plus instantaneous velocity across the trace.
- Contact resistance. Direct measurement on up to six channels, in parallel with the mechanical record.
- Coil current. Trip and close coil current waveform, for identifying armature binding and supply problems.
Key features
- Non-contact speed measurement. A high-speed imaging sensor measures velocity without mechanical coupling to the operating rod — useful where a conventional transducer cannot be fitted or would load the mechanism.
- Works with the sensors you already have. Compatible with linear travel sensors, rotary sensors and acceleration sensors, all straightforward to install.
- Covers the full switchgear range. SF6 circuit breakers, GIS combined apparatus, vacuum switches and oil switches.
- Everything from one operation. Large backlit LCD with full menu operation; all data and waveforms are displayed after a single operation, with no reconfiguration between measurements.
- Records stay with the instrument. Up to 2,000 field test records with real-time clock stamping, transferable over USB.
- On-site printing. Built-in micro printer outputs all data and waveforms at the point of test, so results can be attached to the job before leaving site.
- Analysis on board. Evaluates the full set of mechanical characteristic parameters directly on the instrument.
Choosing a configuration
The series shares one measurement platform across ten configurations. What differs is channel count and which auxiliary functions are fitted — select on the basis of the switchgear you test most, and whether you need dual-ground testing or an integrated operating supply.
| Model | Metal contacts | Contact resistance | Carbon contacts | Dual ground | Trip power | Close power | Bluetooth |
|---|---|---|---|---|---|---|---|
| DB-7001C | 6 | — | — | — | ✓ | — | — |
| DB-8002 | 12 | 6 | — | — | — | ✓ | ✓ |
| DB-8003BD | 12 | 6 | 3 | — | — | ✓ | ✓ |
| DB-8003C | 12 | 6 | 6 | — | — | ✓ | — |
| DB-8015 | 12 | 6 | — | 3 | — | — | — |
| DB-8015B | 12 | 6 | 3 | 6 | — | — | — |
| DB-8015C | 12 | 6 | 6 | 6 | — | — | — |
| DB-8025D | 12 | 6 | — | 6 | — | ✓ | ✓ |
| DB-8025B | 12 | 6 | 3 | 6 | — | ✓ | ✓ |
| DB-8025C | 12 | 6 | 6 | 6 | — | ✓ | ✓ |
Technical specification
The same instrument is supplied in two enclosures. The bench case suits workshop and commissioning use; the carry-on case is built for field work, with the panel laid out inside a sealed transit case.
| Parameter | Specification |
|---|---|
| Current | Range 0.01 A – 20.00 A · Resolution 0.01 A |
| Output power supply | DC 30–250 V, digitally adjustable · 20 A instantaneous |
| Dimensions — metal case | 380 × 300 × 300 mm (L × W × H) · 12 kg |
| Dimensions — carry-on case | 480 × 370 × 350 mm (L × W × H) · 18 kg |
Where it fits
- Commissioning and acceptance. Establishing the mechanical baseline for a new or refurbished breaker, and verifying it against the manufacturer's figures.
- Routine maintenance. Periodic verification of timing, velocity and travel against the acceptance criteria.
- Post-overhaul verification. Confirming that mechanical parameters have been restored after work on the mechanism.
- Fault investigation. Establishing what the mechanism actually did during a failed or slow operation.
Mechanical characteristics testing establishes that a breaker's operating parameters sit within their allowed range. For detecting mechanical degradation that has not yet moved those parameters, see WP-02 — The defect your timing test cannot see.
Manufactured in China. Selected, supplied and technically supported by HVPACE, Auckland. Warranty and calibration handled locally.
About HVPACE
HVPACE is the trading name of Power Asset Condition Engineering Limited, a New Zealand-based supplier of test and diagnostic instruments and selected specialty equipment — such as cable sheath voltage limiters and other low-volume, mission-critical components — for high-voltage power systems. Backed by hands-on engineering expertise, including field-tested condition assessment techniques and AI-based signal analysis, we support customers with diagnostic guidance, methodology development and fault investigation, so they get the most value from the equipment they buy.
Request a quotationEmail pengwei@hvpace.co.nz · Phone +64 21 025 9607 4 · Auckland 0616, New Zealand
HVPACE is the trading name of Power Asset Condition Engineering Limited (NZBN 9422724), Auckland, New Zealand.
Specifications are subject to change without notice. Confirm current configuration at time of order.