HXGN17-12 Box-Type Fixed AC Metal-Enclosed Ring Network Switchgear

Overview

HXGN17-12 Box-Type Fixed AC Metal-Enclosed Ring Network Switchgear, commonly referred to as a ring network cabinet, operates at a nominal voltage of 12kV and a rated frequency of 50Hz. This high-voltage complete equipment is primarily designed for three- phase AC ring networks, terminal distribution networks, and industrial power supply systems. It plays an essential role in receiving, distributing electrical energy, and providing protection. Moreover, it is also suitable for installation in box-type substations.
This equipment complies with GB3906 standards for 3.6~40.5 kV AC metal-enclosed switchgear and control equipment, and it meets international standards IEC298 for AC metal-enclosed switchgear and control equipment. Additionally, it features a "five-proof" interlocking function, ensuring enhanced operational safety and reliability.

product details

Standards

◇ GB 3906-2006 "AC Metal-Enclosed Switchgear and Controlgear for Rated Voltages from 3.6 kV to 40.5 kV"

◇ IEC 60298-1990 "Metal-Enclosed Switchgear and Controlgear for Rated Voltages Above 1 kV and Up to 52 kV"

◇ GB/T 11022-2011 "Common Technical Requirements for High-Voltage Switchgear and Controlgear Standards"

Model and Definitions

Conditions of Use

◇ Ambient Temperature: Upper limit +40℃, Lower limit -25℃;

◇ Altitude: Not exceeding 1000m;

◇ Relative Humidity: Daily average not exceeding 95%, Monthly average not exceeding 90%;

◇ Locations free from fire, explosion hazards, and severe vibrations;

◇ Surrounding air must not contain corrosive or fla mmable gases, water vapor, or conductive dust, avoiding sign ificant contamination.

Major Technical Specifications

No.	ltems		Units	FN12-12	FZN25-12
1	Nominal Voltage			12
2	1min Power Frequency Withstand Voltage		KV	Ground and phase-to-phase 42;lsolation Break Point 48
3	Lightning lmpulse Voltage (Peak)			Ground and phase-to-phase75;lsolation Break Point 85
4	Rated Frequency		Hz	50
5	Load Switch	Rated Currency	A	630
6		Rated Current Switching Life	Time	Not less than 100
7		Breaking Capacity of No-load Transformer	kVA	1250
8		Rated Thermal Stability Current	kV/S	20/4;Ground switch 20/2
9		Rated Dynamic Stability Current (Peak)	KA	50
10		Rated Circuit Making Current (Peak)		50
11		FuseRated Currency	A	125
12	Composite Apparatus	Rated Transfer Current	A	870
13		Rated Short-circuit Breaking Current	kA	20
14		Compatible Fuse Model		S □ LAJ-12
15	Machinery Service Life		Time	2000	10000
16	Auxiliary Circuit 1min Power Frequency Withstand Voltage		kV	2
17	Electric Operating Mechanism Working Voltage		V	AC/DC 220;110
18	Level of Protection			IP2X

Structural Features

◇ The fully assembled structure is lightweight and aesthetically pleasing, allowing for arbitrary combinations and installations, facilitating infinite expansion.

◇ It can be equipped with the FN12-12 type pneumatic Load Switch, Composite Apparatus, or the FZN25-12 type vacuum Load Switch, Composite Apparatus. It is compact, maintenance-free, features a three-phase linkage structure, and has a distinct Isolation Break Point.

◇ The installation method for the Load Switch and Composite Apparatus is flexible, allowing for left-side, right-side, upright, and inverted installations (FZN25 cannot be inverted).

◇ It supports both manual and electric operation and can have remote control capabilities.

◇ Equipped with a complete and reliable mechanical linkage and interlocking device, it fully meets the "five prevention" functions. When the Load Switch is closed, the grounding switch cannot close, and the front door cannot be opened; when the Load Switch is opened, the grounding switch can close, and the front door can be opened when the grounding switch is closed; when the grounding switch is closed, the Load Switch cannot close, but the front door can be opened; when the grounding switch is opened, the Load Switch can open and close, and the front door cannot be opened; when the cable enters from below, if there is power at the entry, regardless of whether the Load Switch is in the closed or open position, the electromagnetic lock controls the front door, preventing it from being opened (except for emergency unlocking with a special key).

◇ The Load Switch uses interlocking protective insulated valves or transparent insulated covers to shield live contacts, ensuring personal safety.

◇ It employs front operation and maintenance, reliably wall-mounted.

◇ The front door is equipped with a viewing window to clearly observe the working conditions of the components inside the cabinet.

External Dimensions

Ordering Notes

◆ When placing an order, the following technical information must be provided:

◇ Main wiring scheme number, purpose, and single-line system diagram, Nominal Voltage, Rated Current, Rated Short-circuit Breaking Current / layout of the distribution room and arrangement configuration diagram of the switch cabinet, etc.;

◇ Requirements for the control, measurement, and protection functions of the switch cabinet, as well as the requirements and schematic diagrams for other locking and automatic devices;

◇ Model, specifications, and quantity of the main electrical components in the switch cabinet;

◇ If the switch cabinet is used in special environmental conditions, this should be detailed during the order placement.