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MVG2-12 型高压真空断路器

Type High Voltage Vacuum Circuit Breaker

MVG2/MVG4 MVG2/MVG4

高压真空断路器（手车式）电气原理图 高压真空断路器（固定式）电气原理图
Electrical Schematic Diagram of HV Vacuum Circuit Breaker (Handcart-Type) Electrical Schematic Diagram of HV Vacuum Circuit Breaker (Fixed -Type)

B phase B phase
Overcurrent tripping C phase Overcurrent tripping C phase

A phase A phase

Tank circuit 元件名称 Component name 闭锁电磁铁（可选件） Latching solenoid (optional) 分闸脱扣器 Shunt tripping device 合闸脱扣器 Closing tripping device 间接式过流脱扣器（可选件） Indirect overcurrent tripping device (optional) 储能电机用微动开关 Charging motor with micro switch 闭锁电磁铁的微动开关（可选件） Locking electromagnet on the micro-switch (optional) 断路器主轴的辅助开关 Auxiliary switch of spindle breaker 机构内部防跳继电器（可选件） Inside anti-hop relay (optional) 串联电阻 Series resistance 整流元件 Rectifying element Tank circuit 元件名称 Component name 闭锁电磁铁（可选件） Latching solenoid (optional) 分闸脱扣器 Shunt tripping device 合闸脱扣器 Closing tripping device 间接式过流脱扣器（可选件） Indirect overcurrent tripping device (optional) 储能电机用微动开关 Charging motor with micro switch 闭锁电磁铁的微动开关（可选件） Locking electromagnet on the micro-switch (optional) 断路器主轴的辅助开关 Auxiliary switch of spindle breaker 机构内部防跳继电器（可选件） Inside anti-hop relay (optional) 串联电阻 Series resistance 整流元件 Rectifying
手车式真空断路器电气控制原理图 Handcart Type Vacuum Breaker Electrical Control Schematics 断路器状态为分闸、未储能、工作位置 The circuit breaker status is opening, no energy storage, work location 带防跳、带闭锁、带过流方案 lock and overcurrent scheme 代号 Codename 手动储能 Manual storage 用于试验位置的辅助开关 用于工作位置的辅助开关 储能电机 Charging motor 固定式真空断路器电气控制原理图 Fixed Vacuum Breaker Electrical Control Schematics 断路器状态为分闸、未储能 The circuit breaker status is opening, no energy storage 带防跳、带闭锁、带过流方案 lock and overcurrent scheme 代号 Codename 手动储能 Manual storage 储能电机 Charging motor

Closing the loop Y1 TQ HQ P Y7～Y9 S1 S2 QF S8 S9 M KO RO V1～V4 Closing the loop Y1 TQ HQ P Y7～Y9 S1 S2 QF M KO RO V1～V4

Blocking Circuit

Blocking Circuit 过流脱扣器（Y7～Y9）：原理图中采用过流脱扣（Y7即：选用中间CT）时， 则原理图中Y8、Y9回路取消；原理图中采用2过流脱扣（即选用Y7、Y8）时， to select intermediate CT), the Y8, Y9 loop in the schematic shall be cancelled; where two overcurrent trips (ie to select Y7, Y8) are shown in schematic, the circuit Y9 in the schematic shall be cancelled; where no overcurrent is present, V7, Y8 and Y9 circuit shall be cancelled. 过流脱扣器（Y7～Y9）：原理图中采用过流脱扣（Y7即：选用中间CT）时， 则原理图中Y8、Y9回路取消；原理图中采用2过流脱扣（即选用Y7、Y8）时， to select intermediate CT), the Y8, Y9 loop in the schematic shall be cancelled; where two overcurrent trips (ie to select Y7, Y8) are shown in schematic, the circuit Y9 in the schematic shall be cancelled; where no overcurrent is present, V7, Y8 and Y9 circuit shall be cancelled.

Opening loop work location Test position 则原理图中Y9回路取消，不带过流时，则Y7、Y8和Y9回路均取消。 Overcurrent tripping (Y7 Y9) : Where overcurrent tripping is shown in schematic (Y7 i.e: Opening loop 则原理图中Y9回路取消，不带过流时，则Y7、Y8和Y9回路均取消。 Overcurrent tripping (Y7 Y9) : Where overcurrent tripping is shown in schematic (Y7 i.e:

MVG2-12 说明： Test position 说明： Test position MVG2-12

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