CCVT Max
CCVT Monitoring for early fault detection and crew safety.
The CCVT Max is a proven, advanced system for monitoring transformer performance. It detects early signs of capacitive voltage transformer (CCVT) degradation before they become serious.
The system audits phasor voltage outputs in real time. It allows early-stage detection of abnormalities in the dielectric properties of the CCVT insulation. These insights reduce the risk of costly failures and safety incidents. The CCVT Max mounts in a standard rack and connects to existing fused secondary voltage outputs. It improves substation reliability and extends CCVT life.
- Detects CCVT issues before costly relay trips.
- Prevents CCVT damage and personnel injury.
- Reduces bus fault and outage risk.
- Identifies recurring CCVT issues.
- Delivers precise diagnostic data.
CCVT Max — Early detection through real-time monitoring.
Comprehensive phasor analysis.
Tracks real-time voltage phasor relationships to detect subtle changes in CCVT condition that simple voltage monitors cannot identify.
Multi-set capability.
Supports up to four three-phase CCVT groups per system. This reduces equipment footprint and simplifies large-bus installations.
Proactive fault prevention.
Sends early, actionable warnings to stop misoperations, bus faults, and system instability— issues that most standard voltage monitors miss. Data integrates directly with SCADA systems and ZTZ Services TraMos software.
Real-time fault detection includes:
- Loose or high-resistance connections.
- Ferro-resonance circuit failure.
- Intermediate voltage transformer faults.
- Capacitor element failures in upper or lower stacks.
Over 40 years of transformer monitoring expertise built in:
- Simple – No special transducers required.
- Efficient – Monitors up to multiple CCVT sets with one system.
- Intelligent – Applies multiple diagnostic methods for higher accuracy.
- Flexible – Ideal for retrofit installations.
- Guaranteed – Made in the U.S.A.
CCVT MAX Transformer Fault Monitoring System
Hardware Specifications
- Dimensions 19-inch rack-mounted 3U case
- Weight Approx. 12 lb
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Power Supply
- 90-264 VAC 50/60 Hz
- 120-370 VDC
- Max Power Consumption 75 VA
- Inputs Up to four 3-phase groups of CCVT
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Outputs
- 5 alarm dry-contact relays
- 1 x Device alarm relay (Form C)
- 4 x CCVT group alarm relays (Form C)
- Relay Switch Capacity
- 250 V / 10 A AC or 125 V / 8 A DC
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Communication
- Local USB port on front panel
- Ethernet (RJ45) port for remote access with ZTZ software
- SCADA connectivity: RS-485 port (Modbus RTU or DNP3.0 Serial), Ethernet port (RJ45, Modbus TCP or DNP over Ethernet)
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Front Panel Indication
- Power and Status
- CCVT group alarm status
Ready to protect your infrastructure?
Active transformer monitoring transforms data depth from one sample a year to eight samples a day.
- Make informed maintenance decisions and reduce site visits.
- Prolong transformer fleet life.
- Prevent catastrophic transformer failure.
Let’s discuss transformer monitoring solutions tailored to your specific needs and infrastructure. Call now and talk to an American engineer at our company.