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Transfer switching equipment
WHKMBS-12
WHKMBS-12 medium-voltage power conversion system is a backup auto-transfer power conversion system, consisting of 2 medium-voltage power conversion switch cabinets. It is equipped with MVG2-12 vacuum circuit breakers, BA-IIIH intelligent controllers and other components, achieving power conversion, protection and other functions for two power sources.
Product Details
Model and Meaning
Technical Specifications
Appearance and dimensions
Other
WHKMBS-12 medium-voltage power conversion system is a standby automatic power conversion system. It consists of 2 medium-voltage power conversion switch cabinets, equipped with MVG2-12 vacuum circuit breaker, BA-Ⅲ H intelligent controller and other components to realize two-way power conversion, protection and other functions.
| WHK | MBS | — | ☐ | / | ☐ | / | ☐ | + | ☐ |
|---|---|---|---|---|---|---|---|---|---|
| Enterprise code | Product series code | Rated operating voltage | Rated operating current | Breaking current | Controller | ||||
|
Wuxi Hanguang Electric Company Limited |
Medium voltage power supply Conversion system |
12kV | 1250A | 31.5 kA | BA-Ⅲ H |
| Serial number | Name | Units | Numerical value |
|---|---|---|---|
| 1 | Rated voltage | kV | 12 |
| 2 | Rated short-time power frequency withstand voltage | kV | 42 (alternate and opposite) |
| 3 | Rated lightning impulse withstand voltage | kV | 75 (alternate and opposite) |
| 4 | Rated frequency | Hz | 50 |
| 5 | Rated current | A | 1250 |
| 6 | Rated short circuit breaking current | kA | 31.5 |
| 7 | Rated short-circuit closing current | kA | 80 |
| 8 | Rated short circuit duration | S | 4 |
| 9 | Rated Peak Withstand Current (Main Circuit, Ground Switch) | kA | 80 |
| 10 | Protection level (enclosure/compartment) | IP4X/IP2X |
Product Features
◆ The cabinet adopts metal armored structure.
Each compartment in the cabinet (bus bar room, switch hand car room, cable room and secondary instrument control room) is isolated by metal grounded partitions, which greatly improves the safety of maintenance personnel; any fault in any compartment will not affect the safety of other compartments.
◆ (Class A) Rigid mechanical interlock + electrical interlock.
◆ Tight protection rating.
The protection rating of the switchgear enclosure is IP40, and the protection rating of the cabinet door when it is opened is IP2X.
◆ Configure the online monitoring module.
It has intelligent functions such as judging contact reliability, opening and closing actions, and mechanism stability.
◆ Complete five-proof interlocking.
Intelligent Controller (BA-Ⅲ H)
Performance and Features
◆ It has the functions of over-voltage, under-voltage, over-frequency, under-frequency, over-current, phase loss and reverse phase sequence.
◆ LCD display, LED indication, key operation, adjustable parameters, multiple languages (Simplified Chinese, English, others).
◆ Hardware RS485 communication interface and other types of communication methods realize four remote functions.
◆ Step by step switching function
◆ PT disconnection detection function
