CN2420770Y

CN2420770Y - Multifunction transformer

Info

Publication number: CN2420770Y
Application number: CN 00235235
Authority: CN
Inventors: 马爱杰; 黄兴江; 陈耀光; 赵云峰; 宋金德; 陈高文
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-20
Filing date: 2000-05-20
Publication date: 2001-02-21
Anticipated expiration: 2010-05-20

Abstract

The utility model relates to a multifunctional transformer. The utility model is suitable for an electric power supply system. When the three-phase alternating current transformer has abnormal conditions, such as overcurrent or overvoltage or overheating or pilfered, etc., the utility model can automatically inform concerned people by a telephone automatic alarm device. The utility model is characterized in that the output end of the three-phase alternating current transformer is connected with an overcurrent, an overvoltage, an overheating, and a pilfered prevention remote warning devices; thus, the three-phase alternating current transformer can be ensured to be normally operated, the stealing can be prevented, and the cost is low.

Description

Multi-functional transformer

The utility model is about a kind of multi-functional transformer, is applicable in the power supply system.

At present, rural area, residential quarter power supply three-phase ac transformer, most of oil immersed type autotransformer that adopts; generally speaking, to overcurrent, overvoltage, the overheating operation unprotect device of transformer, in case abnormal conditions occur; easily burn transformer, and bring great inconvenience to resident living.

The purpose of this utility model is to connect overcurrent, overvoltage, overtemperature and antitheft remote alarming device at the three-phase ac transformer output, like this, can guarantee that three-phase ac transformer normally moves, again can be antitheft, and cost is not high yet.

Task of the present utility model is finished as follows.Three-phase ac transformer output in existing electric power system is incorporated voltage relay into, seal in current transformer, in current transformer, seal in current relay, telephone automatic alarm device, temperature relay are put in the appropriate location in the shell, thermistor is placed in the appropriate location in three-phase ac transformer internal transformer oil, on the shell door of three-phase ac transformer sealing, load onto and often open magnetic switch, then with voltage relay, current relay, temperature relay, thermistor, often open magnetic switch, the telephone automatic alarm device is done suitably to connect.

Owing to adopt such scheme, when overcurrent, overvoltage, overtemperature or abnormal conditions such as stolen appear in three-phase ac transformer, can inform the relevant personnel automatically by the telephone automatic alarm device.Have simple in structure, convenient being suitable for, characteristics such as cost is not high yet.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is multi-functional transformer circuit schematic diagram.

Among the figure 1, three-phase ac transformer input 2, three-phase ac transformer 3, three-phase ac transformer output 4, thermistor 5, temperature relay 6, voltage relay 7, current transformer 8, current relay 9, telephone automatic alarm device 10, bar magnet 11, often open magnetic switch

In Fig. 1, voltage relay (6) is connected in parallel on the live wire of three-phase ac transformer output (3) and the zero line, the normally opened contact of voltage relay (6) is connected on the telephone automatic alarm device (9), on the live wire of three-phase ac transformer output (3), seal in current transformer (7), on the loop of current transformer (7), seal in current relay (8), the normally opened contact of current relay (8) is connected on the telephone automatic alarm device (9), thermistor (4) is placed in the appropriate location in three-phase ac transformer (2) internal transformer oil, and suitably be connected with temperature relay (5), the normally opened contact of temperature relay (5) is connected on the telephone automatic alarm device (9), the appropriate location is placed bar magnet (10) and is often opened magnetic switch (11) on the shell door of three-phase ac transformer (2) sealing, will often open magnetic switch (11) two ends and be connected on the telephone automatic alarm device (9).Temperature relay (5), voltage relay (6), current relay (8) and telephone automatic alarm device (9) are placed on appropriate location in the shell of three-phase ac transformer (2) sealing, and telephone automatic alarm device (9) selects languages type to report to the police better.

Claims

1, multi-functional transformer, on the live wire of three-phase ac transformer output (3), seal in current transformer (7), thermistor (4) is placed in the appropriate location in the internal transformer oil of three-phase ac transformer (2), and suitably be connected with temperature relay (5), bar magnet (10) and magnetic switch (11) are placed in the appropriate location on the shell door that three-phase ac transformer (2) is sealed, and it is characterized in that: the normally opened contact of temperature relay (5), the normally opened contact of voltage relay (6), the normally opened contact of current relay (8) and Chang Kai magnetic switch (11) are connected on the telephone automatic alarm device (9).

2, multi-functional transformer according to claim 1 is characterized in that: telephone automatic alarm (9) selects languages type to report to the police.