Complete Product Introduction

1. Product Brief Introduction

The FZW28-12F series outdoor pole-mounted vacuum load break switch is suitable for outdoor three-phase AC distribution systems with a rated voltage of 12kV and a rated frequency of 50Hz, and is used for making, breaking and carrying rated load current and short-circuit current. The FZW28-12F series outdoor pole-mounted vacuum load break switch is applicable to substations, industrial and mining enterprises, urban and rural protection and control fields, power grid automation power networks and places with frequent operation.

The FZW28-12F series outdoor pole-mounted vacuum load break switch is used as the operation and control switch for the overhead line distribution system, with various types. It has the outstanding advantages of no oil, simple structure, maintenance-free operation, etc., and has been widely used so far. Combined with FDR fault detection equipment or RTU remote terminal equipment, it forms a simple and practical automation system, which can realize automatic positioning of fault sections of overhead lines and automatic isolation of fault sections. To renew the existing switchgear of our country and make the power distribution equipment renovation characterized by oil-free and automation.

2. Model Meaning & Explanation

The coding of the product model contains the core structural characteristics and parameter information of the load break switch. The specific meaning of each part of the model is as follows:

F: Load Break Switch
Z: Vacuum
W: Outdoor
28: Design Serial Number
12: Rated Voltage (kV)
F: Spring Operating Mechanism
□: Rated Current
□□: Rated Short-circuit Breaking Current (kA)

3. Functional Characteristics

• Automatic isolation of phase-to-phase short-circuit faults: When a phase-to-phase short-circuit fault occurs on the user branch line, the pole-mounted switch will open and lock immediately after the substation circuit breaker or recloser trips, and after the substation is restored to power supply, other user branch lines on the line can resume power supply quickly;
• Rapid positioning of fault points: After the line fault causes the pole-mounted switch to act, the responsible user will have a power outage, and the fault information will be actively reported by the main engine. The power department can send personnel to the site to check and eliminate the fault through the palm computer or communication module;
• Automatic removal of single-phase ground faults: When a single-phase ground fault occurs on the user branch line, the pole-mounted switch will open automatically; the substation and other user branches on the line will not be affected by the fault. This switch can realize the following functions: quick-break protection, overcurrent protection, triple reclosing, event recording, anti-drip protection, zero sequence protection, real-time clock, post-reclosing acceleration, real-time status query, intelligent palm computer control, local/remote setting of fixed value, active fault reporting, GSM short message function.

4. Main Technical Parameters

5. Appearance and Installation Dimensions