Microprocessor neutral grounding resistor monitor Littelfuse 5SHT-102-E for detection of ground faults
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
Negotiable
Product Description
Product Overview
The SE-330HV is a microprocessor-based neutral-grounding-resistor (NGR) monitor designed to detect NGR failures and ground faults in resistance-grounded systems. It offers advantages such as reduced ground-fault flash hazard, minimized point-of-fault damage, and reliable ground-fault protection, ensuring a stable system not subject to ferroresonance. The monitor measures NGR resistance, NGR current, and transformer or generator neutral-to-ground voltage. It is compatible with modern resistance-grounded systems and can be used in alarm-only or tripping systems with selective coordination.
Product Attributes
- Brand: Littelfuse Startco
- Origin: Printed in Canada
- Copyright: 2017 Littelfuse Startco
Technical Specifications
| Component | Model | Key Specifications |
| Neutral-Grounding-Resistor Monitor | SE-330HV | Microprocessor-based, detects NGR failures and ground faults, measures NGR resistance, NGR current, and neutral-to-ground voltage. |
| Sensing Resistor | ER-series (e.g., ER-15KV, ER-25KV, ER-35KV, ER-72KV, ER-1000HV) | 100- or 200-kW rating required for monitoring. |
| Current Transformer (CT) | EFCT-1, SE-CS30-70, EFCT-26, SE-CS30-26 | Used for ground-fault current sensing. |
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